// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
 
using System;
using Microsoft.CodeAnalysis.Editor.CSharp.AutomaticCompletion;
using Microsoft.CodeAnalysis.Editor.UnitTests.AutomaticCompletion;
using Microsoft.CodeAnalysis.Test.Utilities;
using Microsoft.VisualStudio.Commanding;
using Microsoft.VisualStudio.Text.Editor.Commanding.Commands;
using Roslyn.Test.Utilities;
using Xunit;
 
namespace Microsoft.CodeAnalysis.Editor.CSharp.UnitTests.AutomaticCompletion;
 
[Trait(Traits.Feature, Traits.Features.AutomaticCompletion)]
public sealed class AutomaticLineEnderTests : AbstractAutomaticLineEnderTests
{
    [WpfFact]
    public void Creation()
    {
        Test("""
 
            $$
            """, "$$");
    }
 
    [WpfFact]
    public void Usings()
    {
        Test("""
            using System;
            $$
            """, @"using System$$");
    }
 
    [WpfFact]
    public void Namespace()
    {
        Test("""
            namespace {}
            $$
            """, @"namespace {$$}");
    }
 
    [WpfFact]
    public void Class()
    {
        Test("""
            class {}
            $$
            """, "class {$$}");
    }
 
    [WpfFact]
    public void Method()
    {
        Test("""
            class C
            {
                void Method() {$$}
            }
            """, """
            class C
            {
                void Method() {$$}
            }
            """, assertNextHandlerInvoked: true);
    }
 
    [WpfFact]
    public void Field()
    {
        Test("""
            class C
            {
                private readonly int i = 3;
                $$
            }
            """, """
            class C
            {
                pri$$vate re$$adonly i$$nt i = 3$$
            }
            """);
    }
 
    [WpfFact]
    public void EventField()
    {
        Test("""
            class C
            {
                event System.EventHandler e = null;
                $$
            }
            """, """
            class C
            {
                e$$vent System.Even$$tHandler e$$ = null$$
            }
            """);
    }
 
    [WpfFact]
    public void Field2()
    {
        Test("""
            class C
            {
                private readonly int i;
                $$
            }
            """, """
            class C
            {
                private readonly int i$$
            }
            """);
    }
 
    [WpfFact]
    public void EventField2()
    {
        Test("""
            class C
            {
                event System.EventHandler e
                {
                    $$
                }
            }
            """, """
            class C
            {
                eve$$nt System.E$$ventHandler e$$
            }
            """);
    }
 
    [WpfFact]
    public void Field3()
    {
        Test("""
            class C
            {
                private readonly int
                    $$
            }
            """, """
            class C
            {
                private readonly int$$
            }
            """);
    }
 
    [WpfFact]
    public void EventField3()
    {
        Test("""
            class C
            {
                event System.EventHandler
                    $$
            }
            """, """
            class C
            {
                event System.EventHandler$$
            }
            """);
    }
 
    [WpfFact]
    public void EmbeddedStatement()
    {
        Test("""
            class C
            {
                void Method()
                {
                    if (true)
                    {
                        $$
                    }
                }
            }
            """, """
            class C
            {
                void Method()
                {
                    if (true) $$
                }
            }
            """);
    }
 
    [WpfFact]
    public void EmbeddedStatement1()
    {
        Test("""
            class C
            {
                void Method()
                {
                    if (true) 
                        Console.WriteLine()
                            $$
                }
            }
            """, """
            class C
            {
                void Method()
                {
                    if (true) 
                        Console.WriteLine()$$
                }
            }
            """);
    }
 
    [WpfFact]
    public void EmbeddedStatement2()
    {
        Test("""
            class C
            {
                void Method()
                {
                    if (true)
                        Console.WriteLine();
                    $$
                }
            }
            """, """
            class C
            {
                void Method()
                {
                    if (true) 
                        Console.WriteLine($$)
                }
            }
            """);
    }
 
    [WpfFact, WorkItem("https://github.com/dotnet/roslyn/issues/57323")]
    public void EmbeddedStatementFollowedByStatement()
    {
        Test("""
            class C
            {
                void Method()
                {
                    if (true)
                    {
                    }
                    if (true)
                    {
                        $$
                    }
                    if (true)
                    {
                    }
                }
            }
            """, """
            class C
            {
                void Method()
                {
                    if (true)
                    {
                    }
                    if (true$$)
                    if (true)
                    {
                    }
                }
            }
            """);
    }
 
    [WpfFact]
    public void Statement()
    {
        Test("""
            class C
            {
                void Method()
                {
                    int i;
                    $$
                }
            }
            """, """
            class C
            {
                void Method()
                {
                    int i$$
                }
            }
            """);
    }
 
    [WpfFact]
    public void Statement1()
    {
        Test("""
            class C
            {
                void Method()
                {
                    int
                        $$
                }
            }
            """, """
            class C
            {
                void Method()
                {
                    int$$
                }
            }
            """);
    }
 
    [WpfFact, WorkItem("https://github.com/dotnet/roslyn/issues/3944")]
    public void ExpressionBodiedMethod()
    {
        Test("""
            class T
            {
                int M() => 1 + 2;
                $$
            }
            """, """
            class T
            {
                int M() => 1 + 2$$
            }
            """);
    }
 
    [WpfFact, WorkItem("https://github.com/dotnet/roslyn/issues/3944")]
    public void ExpressionBodiedOperator()
    {
        Test("""
            class Complex
            {
                int real; int imaginary;
                public static Complex operator +(Complex a, Complex b) => a.Add(b.real + 1);
                $$
                private Complex Add(int b) => null;
            }
            """, """
            class Complex
            {
                int real; int imaginary;
                public static Complex operator +(Complex a, Complex b) => a.Add(b.real + 1)$$
                private Complex Add(int b) => null;
            }
            """);
    }
 
    [WpfFact, WorkItem("https://github.com/dotnet/roslyn/issues/3944")]
    public void ExpressionBodiedConversionOperator()
    {
        Test("""
            using System;
            public struct DBBool
            {
                public static readonly DBBool dbFalse = new DBBool(-1);
                int value;
 
                DBBool(int value)
                {
                    this.value = value;
                }
 
                public static implicit operator DBBool(bool x) => x ? new DBBool(1) : dbFalse;
                $$
            }
            """, """
            using System;
            public struct DBBool
            {
                public static readonly DBBool dbFalse = new DBBool(-1);
                int value;
 
                DBBool(int value)
                {
                    this.value = value;
                }
 
                public static implicit operator DBBool(bool x) => x ? new DBBool(1) : dbFalse$$
            }
            """);
    }
 
    [WpfFact, WorkItem("https://github.com/dotnet/roslyn/issues/3944")]
    public void ExpressionBodiedProperty()
    {
        Test("""
            class T
            {
                int P1 => 1 + 2;
                $$
            }
            """, """
            class T
            {
                int P1 => 1 + 2$$
            }
            """);
    }
 
    [WpfFact, WorkItem("https://github.com/dotnet/roslyn/issues/3944")]
    public void ExpressionBodiedIndexer()
    {
        Test("""
            using System;
            class SampleCollection<T>
            {
                private T[] arr = new T[100];
                public T this[int i] => i > 0 ? arr[i + 1] : arr[i + 2];
                $$
            }
            """, """
            using System;
            class SampleCollection<T>
            {
                private T[] arr = new T[100];
                public T this[int i] => i > 0 ? arr[i + 1] : arr[i + 2]$$
            }
            """);
    }
 
    [WpfFact, WorkItem("https://github.com/dotnet/roslyn/issues/3944")]
    public void ExpressionBodiedMethodWithBlockBodiedAnonymousMethodExpression()
    {
        Test("""
            using System;
            class TestClass
            {
                Func<int, int> Y() => delegate (int x)
                {
                    return 9;
                };
                $$
            }
            """, """
            using System;
            class TestClass
            {
                Func<int, int> Y() => delegate (int x)
                {
                    return 9;
                }$$
            }
            """);
    }
 
    [WpfFact, WorkItem("https://github.com/dotnet/roslyn/issues/3944")]
    public void ExpressionBodiedMethodWithSingleLineBlockBodiedAnonymousMethodExpression()
    {
        Test("""
            using System;
            class TestClass
            {
                Func<int, int> Y() => delegate (int x) { return 9; };
                $$
            }
            """, """
            using System;
            class TestClass
            {
                Func<int, int> Y() => delegate (int x) { return 9; }$$
            }
            """);
    }
 
    [WpfFact, WorkItem("https://github.com/dotnet/roslyn/issues/3944")]
    public void ExpressionBodiedMethodWithBlockBodiedSimpleLambdaExpression()
    {
        Test("""
            using System;
            class TestClass
            {
                Func<int, int> Y() => f =>
                {
                    return f * 9;
                };
                $$
            }
            """, """
            using System;
            class TestClass
            {
                Func<int, int> Y() => f =>
                {
                    return f * 9;
                }$$
            }
            """);
    }
 
    [WpfFact, WorkItem("https://github.com/dotnet/roslyn/issues/3944")]
    public void ExpressionBodiedMethodWithExpressionBodiedSimpleLambdaExpression()
    {
        Test("""
            using System;
            class TestClass
            {
                Func<int, int> Y() => f => f * 9;
                $$
            }
            """, """
            using System;
            class TestClass
            {
                Func<int, int> Y() => f => f * 9$$
            }
            """);
    }
 
    [WpfFact, WorkItem("https://github.com/dotnet/roslyn/issues/3944")]
    public void ExpressionBodiedMethodWithBlockBodiedAnonymousMethodExpressionInMethodArgs()
    {
        Test("""
            using System;
            class TestClass
            {
                public int Prop => Method1(delegate ()
                {
                    return 8;
                });
                $$
 
                private int Method1(Func<int> p) => null;
            }
            """, """
            using System;
            class TestClass
            {
                public int Prop => Method1(delegate()
                {
                    return 8;
                })$$
 
                private int Method1(Func<int> p) => null;
            }
            """);
    }
 
    [WpfFact, WorkItem("https://github.com/dotnet/roslyn/issues/3944")]
    public void Format_SimpleExpressionBodiedMember()
    {
        Test("""
            class T
            {
                int M() => 1 + 2;
                $$
            }
            """, """
            class T
            {
                     int   M()   =>    1       +     2$$
            }
            """);
    }
 
    [WpfFact, WorkItem("https://github.com/dotnet/roslyn/issues/3944")]
    public void Format_ExpressionBodiedMemberWithSingleLineBlock()
    {
        Test("""
            using System;
            class TestClass
            {
                Func<int, int> Y() => delegate (int x) { return 9; };
                $$
            }
            """, """
            using System;
            class TestClass
            {
                            Func<int, int>  Y ()   =>   delegate(int x) { return     9  ; }$$
            }
            """);
    }
 
    [WpfFact, WorkItem("https://github.com/dotnet/roslyn/issues/3944")]
    public void Format_ExpressionBodiedMemberWithMultiLineBlock()
    {
        Test("""
            using System;
            class TestClass
            {
                Func<int, int> Y() => delegate (int x)
                {
                    return 9;
                };
                $$
            }
            """, """
            using System;
            class TestClass
            {
                Func<int, int> Y() => delegate(int x)
                {
                    return 9;
                    }$$
            }
            """);
    }
 
    [WpfFact]
    public void Format_Statement()
    {
        Test("""
            class C
            {
                void Method()
                {
                    int i = 1;
                    $$
                }
            }
            """, """
            class C
            {
                void Method()
                {
                                int         i           =           1               $$
                }
            }
            """);
    }
 
    [WpfFact]
    public void Format_Using()
    {
        Test("""
            using System.Linq;
            $$
            """, @"         using           System          .                   Linq            $$");
    }
 
    [WpfFact]
    public void Format_Using2()
    {
        Test("""
            using
                System.Linq;
            $$
            """, """
            using           
                System          .                   Linq            $$
            """);
    }
 
    [WpfFact]
    public void Format_Field()
    {
        Test("""
            class C
            {
                int i = 1;
                $$
            }
            """, """
            class C
            {
                        int         i           =               1           $$
            }
            """);
    }
 
    [WpfFact]
    public void Statement_Trivia()
    {
        Test("""
            class C
            {
                void goo()
                {
                    goo(); //comment
                    $$
                }
            }
            """, """
            class C
            {
                void goo()
                {
                    goo()$$ //comment
                }
            }
            """);
    }
 
    [WpfFact]
    public void TrailingText_Negative()
    {
        Test("""
            class C
            {
                event System.EventHandler e = null  int i = 2;
                $$
            }
            """, """
            class C
            {
                event System.EventHandler e = null$$  int i = 2;  
            }
            """);
    }
 
    [WpfFact]
    public void CompletionSetUp()
    {
        Test("""
            class Program
            {
                object goo(object o)
                {
                    return goo();
                    $$
                }
            }
            """, """
            class Program
            {
                object goo(object o)
                {
                    return goo($$)
                }
            }
            """, completionActive: true);
    }
 
    [WpfFact, WorkItem("http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/530352")]
    public void EmbeddedStatement3()
    {
        Test("""
            class Program
            {
                void Method()
                {
                    foreach (var x in y)
                    {
                        $$
                    }
                }
            }
            """, """
            class Program
            {
                void Method()
                {
                    foreach (var x in y$$)
                }
            }
            """);
    }
 
    [WpfFact, WorkItem("https://github.com/dotnet/roslyn/issues/66102")]
    public void EmbeddedStatement4()
    {
        Test("""
            class Program
            {
                void Method()
                {
                    foreach (var (x, y) in z)
                    {
                        $$
                    }
                }
            }
            """, """
            class Program
            {
                void Method()
                {
                    foreach (var (x, y) in z$$)
                }
            }
            """);
    }
 
    [WpfFact, WorkItem("http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/530716")]
    public void DoNotAssertOnMultilineToken()
    {
        Test(""""
            interface I
            {
                void M(string s = @"""
            $$
            }
            """", """"
            interface I
            {
                void M(string s = @"""$$
            }
            """");
    }
 
    [WpfFact, WorkItem("http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/530718")]
    public void AutomaticLineFormat()
    {
        Test("""
            class C
            {
                public string P { set; get; }
                $$
            }
            """, """
            class C
            {
                public string P {set;get;$$}
            }
            """);
    }
 
    [WpfFact]
    public void NotAfterExisitingSemicolon()
    {
        Test("""
            class TestClass
            {
                private int i;
                $$
            }
            """, """
            class TestClass
            {
                private int i;$$
            }
            """);
    }
 
    [WpfFact]
    public void NotAfterCloseBraceInMethod()
    {
        Test("""
            class TestClass
            {
                void Test() { }
                $$
            }
            """, """
            class TestClass
            {
                void Test() { }$$
            }
            """);
    }
 
    [WpfFact]
    public void NotAfterCloseBraceInStatement()
    {
        Test("""
            class TestClass
            {
                void Test()
                {
                    if (true) { }
                    $$
                }
            }
            """, """
            class TestClass
            {
                void Test()
                {
                    if (true) { }$$
                }
            }
            """);
    }
 
    [WpfFact]
    public void NotAfterAutoPropertyAccessor()
    {
        Test("""
            class TestClass
            {
                public int A { get; set }
                $$
            }
            """, """
            class TestClass
            {
                public int A { get; set$$ }
            }
            """);
    }
 
    [WpfFact]
    public void NotAfterAutoPropertyDeclaration()
    {
        Test("""
            class TestClass
            {
                public int A { get; set; }
                $$
            }
            """, """
            class TestClass
            {
                public int A { get; set; }$$
            }
            """);
    }
 
    [WpfFact, WorkItem("http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/150480")]
    public void DelegatedInEmptyBlock()
    {
        Test("""
            class TestClass
            {
                void Method()
                {
                    try { $$}
                }
            }
            """, """
            class TestClass
            {
                void Method()
                {
                    try { $$}
                }
            }
            """, assertNextHandlerInvoked: true);
    }
 
    [WpfFact, WorkItem("http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/150480")]
    public void DelegatedInEmptyBlock2()
    {
        Test("""
            class TestClass
            {
                void Method()
                {
                    if (true) { $$}
                }
            }
            """, """
            class TestClass
            {
                void Method()
                {
                    if (true) { $$}
                }
            }
            """, assertNextHandlerInvoked: true);
    }
 
    [WpfFact, WorkItem("http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/150480")]
    public void NotDelegatedOutsideEmptyBlock()
    {
        Test("""
            class TestClass
            {
                void Method()
                {
                    try { }
                    $$
                }
            }
            """, """
            class TestClass
            {
                void Method()
                {
                    try { }$$
                }
            }
            """);
    }
 
    [WpfFact, WorkItem("http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/150480")]
    public void NotDelegatedAfterOpenBraceAndMissingCloseBrace()
    {
        Test("""
            class TestClass
            {
                void Method()
                {
                    try {
                        $$
                }
            }
            """, """
            class TestClass
            {
                void Method()
                {
                    try {$$
                }
            }
            """);
    }
 
    [WpfFact, WorkItem("http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/150480")]
    public void NotDelegatedInNonEmptyBlock()
    {
        Test("""
            class TestClass
            {
                void Method()
                {
                    try { x }
                    $$
                }
            }
            """, """
            class TestClass
            {
                void Method()
                {
                    try { x$$ }
                }
            }
            """);
    }
 
    [WpfFact, WorkItem("http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/150480")]
    public void NotDelegatedAfterOpenBraceInAnonymousObjectCreationExpression()
    {
        Test("""
            class TestClass
            {
                void Method()
                {
                    var pet = new { };
                    $$
                }
            }
            """, """
            class TestClass
            {
                void Method()
                {
                    var pet = new { $$}
                }
            }
            """);
    }
 
    [WpfFact, WorkItem("http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/150480")]
    public void NotDelegatedAfterOpenBraceObjectCreationExpression()
    {
        Test("""
            class TestClass
            {
                void Method()
                {
                    var pet = new List<int>();
                    $$
                }
            }
            """, """
            class TestClass
            {
                void Method()
                {
                    var pet = new List<int> { $$}
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestMultipleNamespace()
    {
        Test($$"""
            namespace Bar2
            {
                $$
            }
            namespace Bar
            {
            }
            """, $$"""
            namespace B$$ar2$$
            namespace Bar
            {
            }
            """);
    }
 
    [WpfTheory]
    [InlineData("namespace")]
    [InlineData("class")]
    [InlineData("struct")]
    [InlineData("record")]
    [InlineData("enum")]
    [InlineData("interface")]
    public void TestEmptyBaseTypeDeclarationAndNamespace(string typeKeyword)
    {
        Test($$"""
            public {{typeKeyword}} Bar
            {
                $$
            }
            """, $"""
            pu$$blic {typeKeyword} $$Bar$$
            """);
    }
 
    [WpfTheory]
    [InlineData("class")]
    [InlineData("struct")]
    [InlineData("record")]
    [InlineData("enum")]
    [InlineData("interface")]
    public void TestMultipleBaseTypeDeclaration(string typeKeyword)
    {
        Test($$"""
            public {{typeKeyword}} Bar2
            {
                $$
            }
 
            public {{typeKeyword}} Bar
            {
            }
            """, $$"""
            pub$$lic {{typeKeyword}} B$$ar2$$
            public {{typeKeyword}} Bar
            {
            }
            """);
    }
 
    [WpfFact]
    public void TestNestedTypeDeclaration()
    {
        Test("""
            public class Bar1
            {
                public class Bar2
                {
                    $$
                }
            }
            """,
            """
            public class Bar1
            {
                pu$$blic cla$$ss B$$ar2$$
            }
            """);
    }
 
    [WpfFact]
    public void TestNestedNamespace()
    {
        Test("""
            namespace Bar1
            {
                namespace Bar2
                {
                    $$
                }
            }
            """,
            """
            namespace Bar1
            {
                namespa$$ce $$B$$ar2$$
            }
            """);
    }
 
    [WpfTheory]
    [InlineData("namespace")]
    [InlineData("class")]
    [InlineData("struct")]
    [InlineData("record")]
    [InlineData("enum")]
    [InlineData("interface")]
    public void TestBaseTypeDeclarationAndNamespaceWithOpenBrace(string typeKeyword)
    {
        Test($$"""
            public {{typeKeyword}} Bar {
                $$
            """, $$"""
            pub$$lic {{typeKeyword}} B$$ar {$$
            """);
    }
 
    [WpfTheory]
    [InlineData("namespace")]
    [InlineData("class")]
    [InlineData("struct")]
    [InlineData("record")]
    [InlineData("enum")]
    [InlineData("interface")]
    public void TestValidTypeDeclarationAndNamespace(string typeKeyword)
    {
        Test($$"""
            public {{typeKeyword}} Bar {}
            $$
            """,
            $@"public {typeKeyword}$$ Ba$$r {{}}$$");
    }
 
    [WpfFact]
    public void TestMethod()
    {
        Test("""
            public class Bar
            {
                void Main()
                {
                    $$
                }
            }
            """, """
            public class Bar
            {
                v$$oid Ma$$in($$)$$
            }
            """);
    }
 
    [WpfFact]
    public void TestConstructor()
    {
        Test("""
            public class Bar
            {
                void Bar()
                {
                    $$
                }
            }
            """, """
            public class Bar
            {
                v$$oid Ba$$r($$)$$
            }
            """);
    }
 
    [WpfFact]
    public void TestValidMethodInInterface()
    {
        Test("""
            public interface Bar
            {
                void Main();
                $$
            }
            """, """
            public interface Bar
            {
                v$$oid Mai$$n($$)$$;
            }
            """);
    }
 
    [WpfFact]
    public void TestMissingSemicolonMethodInInterface()
    {
        Test("""
            public interface Bar
            {
                void Main()
                    $$
            }
            """, """
            public interface Bar
            {
                v$$oid Mai$$n($$)$$
            }
            """);
    }
 
    [WpfFact]
    public void TestValidLocalFunction()
    {
        Test("""
            public class Bar
            {
                void Main()
                {
                    void Local()
                        $$
                    {
                    }
                }
            }
            """, """
            public class Bar
            {
                void Main()
                {
                    v$$oid Loc$$al($$)$$
                    {
                    }
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestLocalFunction()
    {
        Test("""
            public class Bar
            {
                void Main()
                {
                    void Local()
                    {
                        $$
                    }
                }
            }
            """, """
            public class Bar
            {
                void Main()
                {
                    v$$oid Loca$$l($$)$$
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestIndexerAsLastElementInClass()
    {
        Test("""
            public class Bar
            {
                public int this[int i]
                {
                    $$
                }
            }
            """, """
            public class Bar
            {
                p$$ublic in$$t thi$$s[in$$t i]$$
            }
            """);
    }
 
    [WpfFact]
    public void TestIndexerNotAsLastElementInClass()
    {
        Test("""
            public class Bar
            {
                public int this[int i]
                {
                    $$
                }
                void Main() {}
            }
            """, """
            public class Bar
            {
                p$$ublic in$$t thi$$s[in$$t i]$$
                void Main() {}
            }
            """);
    }
 
    [WpfFact]
    public void TestValidIndexer()
    {
        Test("""
            public class Bar
            {
                public int this[int i]
                    $$
                {
                }
            }
            """, """
            public class Bar
            {
                p$$ublic i$$nt thi$$s[in$$t i]$$
                {
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestGetAccessorOfProperty()
    {
        var initialMarkup = """
            public class Bar
            {
                public int P
                {
                    ge$$t$$
                }
            }
            """;
 
        var firstResult = """
            public class Bar
            {
                public int P
                {
                    get
                    {
                        $$
                    }
                }
            }
            """;
        var secondResult = """
            public class Bar
            {
                public int P
                {
                    get;
                    $$
                }
            }
            """;
        Test(firstResult, initialMarkup);
        Test(secondResult, firstResult);
    }
 
    [WpfFact]
    public void TestSetAccessorOfProperty()
    {
        var initialMarkup = """
            public class Bar
            {
                public int P
                {
                    set$$
                }
            }
            """;
        var firstResult = """
            public class Bar
            {
                public int P
                {
                    set
                    {
                        $$
                    }
                }
            }
            """;
        var secondResult = """
            public class Bar
            {
                public int P
                {
                    set;
                    $$
                }
            }
            """;
        Test(firstResult, initialMarkup);
        Test(secondResult, firstResult);
    }
 
    [WpfFact]
    public void TestGetAccessorOfIndexer()
    {
        Test("""
            public class Bar
            {
                public int this[int i]
                {
                    get
                    {
                        $$
                    }
                }
            }
            """, """
            public class Bar
            {
                public int this[int i]
                {
                    ge$$t$$
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestValidGetAccessorOfIndexer()
    {
        Test("""
            public class Bar
            {
                public int this[int i]
                {
                    get
                    {
 
                        $$
                    }
                }
            }
            """, """
            public class Bar
            {
                public int this[int i]
                {
                    get
                    {
                        $$
                    }
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestNonEmptyGetAccessor()
    {
        Test("""
            public Class Bar
            {
                public int P
                {
                    get
                    {
                        if (true)
                        $$
                        {
                            return 1;
                        }
                    }
                }   
            }
            """,
            """
            public Class Bar
            {
                public int P
                {
                    get
                    {
                        i$$f ($$true$$)$$
                        {
                            return 1;
                        }
                    }
                }   
            }
            """);
    }
 
    [WpfFact]
    public void TestNonEmptySetAccessor()
    {
        Test("""
            public Class Bar
            {
                public int P
                {
                    get;
                    set
                    {
                        if (true)
                        $$
                        {
                        }
                    }
                }   
            }
            """,
            """
            public Class Bar
            {
                public int P
                {
                    get;
                    set
                    {
                        i$$f (t$$rue)$$
                        {
                        }
                    }
                }   
            }
            """);
    }
 
    [WpfFact]
    public void TestSetAccessorOfIndexer()
    {
        Test("""
            public class Bar
            {
                public int this[int i]
                {
                    get;
                    set
                    {
                        $$
                    }
                }
            }
            """, """
            public class Bar
            {
                public int this[int i]
                {
                    get;
                    se$$t$$
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestValidSetAccessorOfIndexer()
    {
        Test("""
            public class Bar
            {
                public int this[int i]
                {
                    get;
                    set
                    {
 
                        $$
                    }
                }
            }
            """, """
            public class Bar
            {
                public int this[int i]
                {
                    get;
                    set
                    {
                        $$
                    }
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestAddAccessorInEventDeclaration()
    {
        Test("""
            using System;
            public class Bar
            {
                public event EventHandler e
                {
                    add
                    {
                        $$
                    }
                    remove
                }
            }
            """, """
            using System;
            public class Bar
            {
                public event EventHandler e
                {
                    ad$$d$$
                    remove
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestValidAddAccessorInEventDeclaration()
    {
        Test("""
            using System;
            public class Bar
            {
                public event EventHandler e
                {
                    add
                    {
 
                        $$
                    }
                    remove { }
                }
            }
            """, """
            using System;
            public class Bar
            {
                public event EventHandler e
                {
                    add
                    {
                        $$
                    }
                    remove { }
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestRemoveAccessor()
    {
        Test("""
            using System;
            public class Bar
            {
                public event EventHandler e
                {
                    add
                    remove
                    {
                        $$
                    }
                }
            }
            """, """
            using System;
            public class Bar
            {
                public event EventHandler e
                {
                    add
                    remo$$ve$$
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestValidRemoveAccessor()
    {
        Test("""
            using System;
            public class Bar
            {
                public event EventHandler e
                {
                    add { }
                    remove
                    {
 
                        $$
                    }
                }
            }
            """, """
            using System;
            public class Bar
            {
                public event EventHandler e
                {
                    add { }
                    remove
                    {
                        $$
                    }
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestField()
    {
        var initialMarkup = """
            public class Bar
            {
                p$$ublic i$$nt i$$ii$$
            }
            """;
        var firstResult = """
            public class Bar
            {
                public int iii
                {
                    $$
                }
            }
            """;
        var secondResult = """
            public class Bar
            {
                public int iii;
                $$
            }
            """;
 
        Test(firstResult, initialMarkup);
        Test(secondResult, firstResult);
    }
 
    [WpfFact]
    public void TestReadonlyField()
    {
        Test("""
            public class Bar
            {
                public readonly int iii;
                $$
            }
            """, """
            public class Bar
            {
                p$$ublic reado$$nly i$$nt i$$ii$$
            }
            """);
    }
 
    [WpfFact]
    public void TestNonEmptyProperty()
    {
        Test("""
            public class Bar
            {
                public int Foo
                {
                    get { }
                    $$
                }
            }
            """, """
            public class Bar
            {
                public int Foo
                {
                    $$get$$ { }$$
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestMultipleFields()
    {
        Test("""
            public class Bar
            {
                public int apple, banana;
                $$
            }
            """, """
            public class Bar
            {
                p$$ublic i$$nt ap$$ple$$, ba$$nana;$$
            }
            """);
    }
 
    [WpfFact]
    public void TestMultipleEvents()
    {
        Test("""
            using System;
            public class Bar
            {
                public event EventHandler apple, banana;
                $$
            }
            """, """
            using System;
            public class Bar
            {
                p$$ublic event EventHandler ap$$ple$$, ba$$nana$$;$$
            }
            """);
    }
 
    [WpfFact]
    public void TestEvent()
    {
        var initialMarkup = """
            using System;
            public class Bar
            {
                pu$$blic e$$vent EventHand$$ler c$$c$$
            }
            """;
        var firstResult = """
            using System;
            public class Bar
            {
                public event EventHandler cc
                {
                    $$
                }
            }
            """;
        var secondResult = """
            using System;
            public class Bar
            {
                public event EventHandler cc;
                $$
            }
            """;
        Test(firstResult, initialMarkup);
        Test(secondResult, firstResult);
    }
 
    [WpfFact]
    public void TestNonEmptyEvent()
    {
        Test("""
            using System;
            public class Bar
            {
                public event EventHandler Foo
                {
                    add { }
                    $$
                }
            }
            """, """
            using System;
            public class Bar
            {
                public event EventHandler Foo
                {
                    $$add$$ {$$ }$$
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestObjectCreationExpressionWithParenthesis()
    {
        var initialMarkup = """
            public class Bar
            {
                public void M()
                {
                    var f = n$$ew F$$oo($$)$$
                }
            }
            public class Foo
            {
                public int HH { get; set; }
                public int PP { get; set; }
            }
            """;
 
        var firstResult = """
            public class Bar
            {
                public void M()
                {
                    var f = new Foo()
                    {
                        $$
                    };
                }
            }
            public class Foo
            {
                public int HH { get; set; }
                public int PP { get; set; }
            }
            """;
 
        var secondResult = """
            public class Bar
            {
                public void M()
                {
                    var f = new Foo();
                    $$
                }
            }
            public class Foo
            {
                public int HH { get; set; }
                public int PP { get; set; }
            }
            """;
 
        Test(firstResult, initialMarkup);
        Test(secondResult, firstResult);
    }
 
    [WpfFact]
    public void TestObjectCreationExpressionWithNoParenthesis()
    {
        var initialMarkUp = """
            public class Bar
            {
                public void M()
                {
                    var f = n$$ew F$$oo$$
                }
            }
            public class Foo
            {
                public int HH { get; set; }
                public int PP { get; set; }
            }
            """;
 
        var firstResult = """
            public class Bar
            {
                public void M()
                {
                    var f = new Foo()
                    {
                        $$
                    };
                }
            }
            public class Foo
            {
                public int HH { get; set; }
                public int PP { get; set; }
            }
            """;
 
        var secondResult = """
            public class Bar
            {
                public void M()
                {
                    var f = new Foo();
                    $$
                }
            }
            public class Foo
            {
                public int HH { get; set; }
                public int PP { get; set; }
            }
            """;
 
        Test(firstResult, initialMarkUp);
        Test(secondResult, firstResult);
    }
 
    [WpfFact]
    public void TestObjectCreationExpressionWithCorrectSemicolon()
    {
        var initialMarkUp = """
            public class Bar
            {
                public void M()
                {
                    var f = n$$ew F$$oo$$;
                }
            }
            public class Foo
            {
                public int HH { get; set; }
                public int PP { get; set; }
            }
            """;
 
        var firstResult = """
            public class Bar
            {
                public void M()
                {
                    var f = new Foo()
                    {
                        $$
                    };
                }
            }
            public class Foo
            {
                public int HH { get; set; }
                public int PP { get; set; }
            }
            """;
 
        var secondResult = """
            public class Bar
            {
                public void M()
                {
                    var f = new Foo();
                    $$
                }
            }
            public class Foo
            {
                public int HH { get; set; }
                public int PP { get; set; }
            }
            """;
 
        Test(firstResult, initialMarkUp);
        Test(secondResult, firstResult);
    }
 
    [WpfFact]
    public void TestObjectCreationExpressionUsedAsExpression()
    {
        var initialMarkUp = """
            public class Bar
            {
                public void M()
                {
                    N(ne$$w Fo$$o$$);
                }
 
                private void N(Foo f)
                {
                }
            }
            public class Foo
            {
                public int HH { get; set; }
                public int PP { get; set; }
            }
            """;
 
        var firstResult = """
            public class Bar
            {
                public void M()
                {
                    N(new Foo()
                    {
                        $$
                    });
                }
 
                private void N(Foo f)
                {
                }
            }
            public class Foo
            {
                public int HH { get; set; }
                public int PP { get; set; }
            }
            """;
 
        var secondResult = """
            public class Bar
            {
                public void M()
                {
                    N(new Foo());
                    $$
                }
 
                private void N(Foo f)
                {
                }
            }
            public class Foo
            {
                public int HH { get; set; }
                public int PP { get; set; }
            }
            """;
 
        Test(firstResult, initialMarkUp);
        Test(secondResult, firstResult);
    }
 
    [WpfFact]
    public void TestObjectCreationExpressionInUsingStatement()
    {
        var initialMarkup = """
            public class Bar
            {
                public void M()
                {
                    using(var a = n$$ew F$$oo($$)$$)
                }
            }
            public class Foo
            {
                public int HH { get; set; }
                public int PP { get; set; }
            }
            """;
 
        var firstResult = """
            public class Bar
            {
                public void M()
                {
                    using(var a = new Foo()
                    {
                        $$
                    })
                }
            }
            public class Foo
            {
                public int HH { get; set; }
                public int PP { get; set; }
            }
            """;
 
        var secondResult = """
            public class Bar
            {
                public void M()
                {
                    using(var a = new Foo())
                        $$
                }
            }
            public class Foo
            {
                public int HH { get; set; }
                public int PP { get; set; }
            }
            """;
 
        Test(firstResult, initialMarkup);
        Test(secondResult, firstResult);
    }
 
    [WpfFact]
    public void TestObjectCreationExpressionWithNonEmptyInitializer()
    {
        Test(
            """
            public class Bar
            {
                public void M()
                {
                    var a = new Foo() { HH = 1, PP = 2 };
                    $$
                }
            }
            public class Foo
            {
                public int HH { get; set; }
                public int PP { get; set; }
            }
            """,
            """
            public class Bar
            {
                public void M()
                {
                    var a = n$$ew Fo$$o($$) {$$ HH = 1$$, PP = 2 $$};
                }
            }
            public class Foo
            {
                public int HH { get; set; }
                public int PP { get; set; }
            }
            """);
 
    }
 
    [WpfFact]
    public void TestArrayInitializer1()
    {
        Test(
            """
            using System.Collections.Generic;
            public class Bar
            {
                public void M()
                {
                    int[] a = new int[] { 1, 2 };
                    $$
                }
            }
            """,
            """
            using System.Collections.Generic;
            public class Bar
            {
                public void M()
                {
                    int[] a = n$$ew in$$t[$$]$$ {$$ 1$$, 2 $$};
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestArrayInitializer2()
    {
        Test(
            """
            using System.Collections.Generic;
            public class Bar
            {
                public void M()
                {
                    int[] a = new[] { 1, 2 };
                    $$
                }
            }
            """,
            """
            using System.Collections.Generic;
            public class Bar
            {
                public void M()
                {
                    int[] a = n$$ew[$$]$$ {$$ 1$$, 2 $$};
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestCollectionInitializerWithNonEmptyInitializer()
    {
        Test(
            """
            using System.Collections.Generic;
            public class Bar
            {
                public void M()
                {
                    var a = new List<int>() { 1, 2 };
                    $$
                }
            }
            """,
            """
            using System.Collections.Generic;
            public class Bar
            {
                public void M()
                {
                    var a = n$$ew Lis$$t<int$$>($$) {$$ 1$$, 2 $$};
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestCollectionExpression()
    {
        Test(
            """
            using System.Collections.Generic;
            public class Bar
            {
                public void M()
                {
                    int[] a = [1, 2];
                    $$
                }
            }
            """,
            """
            using System.Collections.Generic;
            public class Bar
            {
                public void M()
                {
                    int[] a = $$[$$ 1$$, 2 $$];
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestIfStatementWithInnerStatement()
    {
        Test("""
            public class Bar
            {
                public void Main(bool x)
                {
                    if (x)
                    {
                        $$
                    }
                    var z = 1;
                }
            }
            """, """
            public class Bar
            {
                public void Main(bool x)
                {
                    i$$f$$ ($$x)$$
                    var z = 1;
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestIfStatementWithFollowingElseClause()
    {
        Test("""
            public class Bar
            {
                public void Main(bool x)
                {
                    if (x)
                    {
                        $$
                        var z = 1;
                    }
                    else if (!x)
                }
            }
            """, """
            public class Bar
            {
                public void Main(bool x)
                {
                    i$$f$$ ($$x)$$
                    var z = 1;
                    else if (!x)
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestIfStatementWithoutStatement()
    {
        Test("""
            public class Bar
            {
                public void Main(bool x)
                {
                    if (x)
                    {
                        $$
                    }
                }
            }
            """, """
            public class Bar
            {
                public void Main(bool x)
                {
                    i$$f$$ ($$x)$$
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestNestIfStatementWithInnerStatement()
    {
        Test("""
            public class Bar
            {
                public void Main(int x)
                {
                    if (x == 1)
                        if (x == 2)
                            if (x == 3)
                                if (x == 4)
                                {
                                    $$
                                    var a = 1000;
                                }
                }
            }
            """, """
            public class Bar
            {
                public void Main(int x)
                {
                    if (x == 1)
                        if (x == 2)
                            if (x == 3)
                                i$$f ($$x =$$= 4)$$
                                    var a = 1000;
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestNestIfStatementWithoutInnerStatement()
    {
        Test("""
            public class Bar
            {
                public void Main(int x)
                {
                    if (x == 1)
                        if (x == 2)
                            if (x == 3)
                                if (x == 4)
                                {
                                    $$
                                }
                }
            }
            """, """
            public class Bar
            {
                public void Main(int x)
                {
                    if (x == 1)
                        if (x == 2)
                            if (x == 3)
                                i$$f ($$x =$$= 4)$$
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestNestedElseIfStatementWithInnerStatement()
    {
        Test("""
            public class Bar
            {
                public void Fo(int i)
                {
                    if (i == 1)
                    {
                    }
                    else if (i == 2)
                        if (i == 3)
                        {
                            $$
                            var i = 10;
                        }
                        else
                        {
                        }
                }
            }
            """, """
            public class Bar
            {
                public void Fo(int i)
                {
                    if (i == 1)
                    {
                    }
                    else if (i == 2)
                        i$$f (i$$ == 3)$$
                            var i = 10;
                        else
                        {
                        }
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestNestIfElseStatementWithBlockWithInnerStatement()
    {
        Test("""
            public class Bar
            {
                public void Main(int x)
                {
                    if (x == 1)
                        if (x == 2)
                            if (x == 3)
                            {
                                if (x == 4)
                                {
                                    $$
                                }
                                var i = 10;
                            }
                            else
                            {
                            }
                }
            }
            """, """
            public class Bar
            {
                public void Main(int x)
                {
                    if (x == 1)
                        if (x == 2)
                            if (x == 3)
                            {
                                i$$f ($$x =$$= 4)$$
                                var i = 10;
                            }
                            else
                            {
                            }
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestEmptyDoStatement()
    {
        Test("""
            public class Bar
            {
                public void Main()
                {
                    do
                    {
                        $$
                    }
                }
            }
            """, """
            public class Bar
            {
                public void Main()
                {
                    d$$o$$
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestDoStatementWithInnerStatement()
    {
        Test("""
            public class Bar
            {
                public void Main()
                {
                    do
                    {
                        $$
                    }
                    var c = 10;
                }
            }
            """, """
            public class Bar
            {
                public void Main()
                {
                    d$$o$$
                    var c = 10;
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestDoStatementWithWhileClause()
    {
        Test("""
            public class Bar
            {
                public void Main()
                {
                    do
                    {
                        $$
                        var c = 10;
                    }
                    while (true);
                }
            }
            """, """
            public class Bar
            {
                public void Main()
                {
                    d$$o$$
                    var c = 10;
                    while (true);
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestSingleElseStatement()
    {
        Test("""
            public class Bar
            {
                public void Fo()
                {
                    if (true)
                    {
                    }
                    else
                    {
                        $$
                    }
                }
            }
            """, """
            public class Bar
            {
                public void Fo()
                {
                    if (true)
                    {
                    }
                    e$$lse$$
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestElseStatementWithInnerStatement()
    {
        Test("""
            public class Bar
            {
                public void Fo()
                {
                    if (true)
                    {
                    }
                    else
                    {
                        $$
                    }
                    var c = 10;
                }
            }
            """, """
            public class Bar
            {
                public void Fo()
                {
                    if (true)
                    {
                    }
                    e$$lse$$
                    var c = 10;
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestElseIfStatement()
    {
        Test("""
            public class Bar
            {
                public void Fo()
                {
                    if (true)
                    {
                    }
                    else if (false)
                    {
                        $$
                    }
                }
            }
            """, """
            public class Bar
            {
                public void Fo()
                {
                    if (true)
                    {
                    }
                    e$$lse i$$f ($$false)$$
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestElseIfInTheMiddleWithInnerStatement()
    {
        Test("""
            public class Bar
            {
                public void Fo()
                {
                    if (true)
                    {
                    }
                    else if (false)
                    {
                        $$
                        var i = 10;
                    }
                    else
                    {
                    }
                }
            }
            """, """
            public class Bar
            {
                public void Fo()
                {
                    if (true)
                    {
                    }
                    e$$lse i$$f ($$false)$$
                    var i = 10;
                    else
                    {
                    }
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestElseClauseInNestedIfStatement()
    {
        Test("""
            public class Bar
            {
                public void Fo(int i)
                {
                    if (i == 1)
                    {
                        if (i == 2)
                            var i = 10;
                        else
                        {
                            $$
                        }
                        var c = 100;
                    }
                }
            }
            """, """
            public class Bar
            {
                public void Fo(int i)
                {
                    if (i == 1)
                    {
                        if (i == 2)
                            var i = 10;
                        el$$se
                        var c = 100;
                    }
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestForStatementWithoutStatement()
    {
        Test("""
            public class Bar
            {
                public void Fo()
                {
                    for (int i; i < 10; i++)
                    {
                        $$
                    }
                }
            }
            """, """
            public class Bar
            {
                public void Fo()
                {
                    f$$or (i$$nt i; i < 10;$$ i++)$$
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestForStatementWithInnerStatement()
    {
        Test("""
            public class Bar
            {
                public void Fo()
                {
                    for (int i; i < 10; i++)
                    {
                        $$
                    }
                    var c = 10;
                }
            }
            """, """
            public class Bar
            {
                public void Fo()
                {
                    f$$or (i$$nt i; i < 10;$$ i++)$$
                    var c = 10;
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestForEachStatementWithoutInnerStatement()
    {
        Test("""
            public class Bar
            {
                public void Fo()
                {
                    foreach (var x in "")
                    {
                        $$
                    }
                    var c = 10;
                }
            }
            """, """
            public class Bar
            {
                public void Fo()
                {
                    forea$$ch (var x $$in "")$$
                    var c = 10;
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestLockStatementWithoutInnerStatement()
    {
        Test("""
            public class Bar
            {
                object o = new object();
                public void Fo()
                {
                    lock (o)
                    {
                        $$
                    }
                }
            }
            """, """
            public class Bar
            {
                object o = new object();
                public void Fo()
                {
                    l$$ock$$(o)$$
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestLockStatementWithInnerStatement()
    {
        Test("""
            public class Bar
            {
                object o = new object();
                public void Fo()
                {
                    lock (o)
                    {
                        $$
                    }
                    var i = 10;
                }
            }
            """, """
            public class Bar
            {
                object o = new object();
                public void Fo()
                {
                    l$$ock$$(o)$$
                    var i = 10;
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestUsingStatementWithoutInnerStatement()
    {
        Test("""
            using System;
            public class Bar
            {
                public void Fo()
                {
                    using (var d = new D())
                    {
                        $$
                    }
                }
            }
            public class D : IDisposable
            {
                public void Dispose()
                {}
            }
            """, """
            using System;
            public class Bar
            {
                public void Fo()
                {
                    usi$$ng (va$$r d = new D())$$
                }
            }
            public class D : IDisposable
            {
                public void Dispose()
                {}
            }
            """);
    }
 
    [WpfFact]
    public void TestUsingStatementWithInnerStatement()
    {
        Test("""
            using System;
            public class Bar
            {
                public void Fo()
                {
                    using (var d = new D())
                    {
                        $$
                    }
                    var c = 10;
                }
            }
            public class D : IDisposable
            {
                public void Dispose()
                {}
            }
            """, """
            using System;
            public class Bar
            {
                public void Fo()
                {
                    usi$$ng (va$$r d = new D())$$
                    var c = 10;
                }
            }
            public class D : IDisposable
            {
                public void Dispose()
                {}
            }
            """);
    }
 
    [WpfFact]
    public void TestUsingInLocalDeclarationStatement()
    {
        Test("""
            using System;
            public class Bar
            {
                public void Fo()
                {
                    using var d = new D();
                    $$
                }
            }
            public class D : IDisposable
            {
                public void Dispose()
                {}
            }
            """, """
            using System;
            public class Bar
            {
                public void Fo()
                {
                    usi$$ng v$$ar$$ d = new D()
                }
            }
            public class D : IDisposable
            {
                public void Dispose()
                {}
            }
            """);
    }
 
    [WpfFact]
    public void TestWhileStatementWithoutInnerStatement()
    {
        Test("""
            public class Bar
            {
                public void Fo()
                {
                    while (true)
                    {
                        $$
                    }
                }
            }
            """, """
            public class Bar
            {
                public void Fo()
                {
                    wh$$ile (tr$$ue)$$
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestWhileStatementWithInnerStatement()
    {
        Test("""
            public class Bar
            {
                public void Fo()
                {
                    while (true)
                    {
                        $$
                    }
                    var c = 10;
                }
            }
            """, """
            public class Bar
            {
                public void Fo()
                {
                    wh$$ile (tr$$ue)$$
                    var c = 10;
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestSwitchExpression1()
    {
        Test("""
            public class Bar
            {
                public void Goo(int c)
                {
                    var d = c switch
                    {
                        $$
                    }
                }
            }
            """,
            """
            public class Bar
            {
                public void Goo(int c)
                {
                    var d = c swi$$tch$$
                }
            }
            """);
 
    }
 
    [WpfFact]
    public void TestSwitchExpression2()
    {
        Test("""
            public class Bar
            {
                public void Goo(int c)
                {
                    var d = (c + 1) switch
                    {
                        $$
                    }
                }
            }
            """,
            """
            public class Bar
            {
                public void Goo(int c)
                {
                    var d = (c + 1) swi$$tch$$
                }
            }
            """);
 
    }
 
    [WpfFact]
    public void TestSwitchStatementWithOnlyOpenParenthesis()
    {
        // This test is to make sure {} will be added to the switch statement,
        // but our formatter now can't format the case when the CloseParenthesis token is missing.
        // If any future formatter improvement can handle this case, this test can be modified safely
        Test("""
            public class bar
            {
                public void TT()
                {
                    switch (
            {
                        $$
                    }
                }
            }
            """, """
            public class bar
            {
                public void TT()
                {
                    swi$$tch ($$
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestSwitchStatement()
    {
        Test("""
            public class bar
            {
                public void TT()
                {
                    int i = 10;
                    switch (i)
                    {
                        $$
                    }
                }
            }
            """, """
            public class bar
            {
                public void TT()
                {
                    int i = 10;
                    switc$$h ($$i)$$
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestValidSwitchStatement()
    {
        Test("""
            public class bar
            {
                public void TT()
                {
                    int i = 10;
                    switch (i)
                        $$
                    {
                    }
                }
            }
            """, """
            public class bar
            {
                public void TT()
                {
                    int i = 10;
                    switc$$h ($$i)$$
                    {
                    }
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestValidTryStatement()
    {
        Test("""
            public class bar
            {
                public void TT()
                {
                    try
                        $$
                    {
                    }
                }
            }
            """, """
            public class bar
            {
                public void TT()
                {
                    tr$$y$$
                    {
                    }
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestTryStatement()
    {
        Test("""
            public class bar
            {
                public void TT()
                {
                    try
                    {
                        $$
                    }
                }
            }
            """, """
            public class bar
            {
                public void TT()
                {
                    tr$$y$$
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestValidCatchClause()
    {
        Test("""
            public class Bar
            {
                public void TT()
                {
                    try
                    {
                    }
                    catch (System.Exception)
                    $$
                    {
                    }
                }
            }
            """, """
            public class Bar
            {
                public void TT()
                {
                    try
                    {
                    }
                    cat$$ch (Syste$$m.Exception)$$
                    {
                    }
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestCatchClauseWithException()
    {
        Test("""
            public class Bar
            {
                public void TT()
                {
                    try
                    {
                    }
                    catch (System.Exception)
                    {
                        $$
                    }
                }
            }
            """, """
            public class Bar
            {
                public void TT()
                {
                    try
                    {
                    }
                    cat$$ch (Syste$$m.Exception)$$
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestSingleCatchClause()
    {
        Test("""
            public class bar
            {
                public void TT()
                {
                    try
                    {
                    }
                    catch
                    {
                        $$
                    }
                }
            }
            """, """
            public class bar
            {
                public void TT()
                {
                    try
                    {
                    }
                    cat$$ch$$
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestCatchClauseWithWhenClause()
    {
        Test("""
            public class bar
            {
                public void TT()
                {
                    try
                    {
                    }
                    catch (Exception) when (true)
                    {
                        $$
                    }
                }
            }
            """, """
            public class bar
            {
                public void TT()
                {
                    try
                    {
                    }
                    c$$atch (Ex$$ception) whe$$n (tru$$e)$$
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestFinallyClause()
    {
        Test("""
            public class Bar
            {
                public void Bar2()
                {
                    try
                    {
                    }
                    catch (System.Exception)
                    {
                    }
                    finally
                    {
                        $$
                    }
                }
            }
            """, """
            public class Bar
            {
                public void Bar2()
                {
                    try
                    {
                    }
                    catch (System.Exception)
                    {
                    }
                    fin$$ally$$
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestValidFinallyClause()
    {
        Test("""
            public class Bar
            {
                public void Bar2()
                {
                    try
                    {
                    }
                    catch (System.Exception)
                    {
                    }
                    finally
                    $$
                    {
                    }
                }
            }
            """, """
            public class Bar
            {
                public void Bar2()
                {
                    try
                    {
                    }
                    catch (System.Exception)
                    {
                    }
                    fin$$ally$$
                    {
                    }
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestObjectCreationExpressionWithMissingType()
    {
        Test("""
            public class Bar
            {
                public void Bar2()
                {
                    Bar b = new()
                    {
                        $$
                    };
                }
            }
            """,
            """
            public class Bar
            {
                public void Bar2()
                {
                    Bar b = new$$
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestRemoveInitializerForImplicitObjectCreationExpression()
    {
        Test("""
            public class Bar
            {
                public void Bar2()
                {
                    Bar b = new();
                    $$
                }
            }
            """,
            """
            public class Bar
            {
                public void Bar2()
                {
                    Bar b = new()
                    {
                        $$
                    };
                }
            }
            """);
    }
 
    [WpfTheory]
    [InlineData("checked")]
    [InlineData("unchecked")]
    public void TestCheckedStatement(string keywordToken)
    {
        Test($$"""
            public class Bar
            {
                public void Bar2()
                {
                    {{keywordToken}}
                    {
                        $$
                    }
                }
            }
            """,
            $$"""
            public class Bar
            {
                public void Bar2()
                {
                    {{keywordToken}}$$
                }
            }
            """);
    }
 
    [WpfTheory]
    [InlineData("checked")]
    [InlineData("unchecked")]
    public void TextCheckedExpression(string keywordToken)
    {
        Test($$"""
            public class Bar
            {
                public void Bar2()
                {
                    var i = {{keywordToken}}(1 + 1);
                    $$
                }
            }
            """,
            $$"""
            public class Bar
            {
                public void Bar2()
                {
                    var i = {{keywordToken}}$$(1 +$$ 1)$$
                }
            }
            """);
    }
 
    [WpfFact]
    public void TestConvertFieldToPropertyWithAttributeAndComment()
    {
        Test("""
            public class Bar
            {
                public int Property
                {
                    $$
                }
 
                /// <summary>
                /// </summary>
                [SomeAttri]
                public void Method() { }
            }
            """,
            """
            public class Bar
            {
                public int Property$$
 
                /// <summary>
                /// </summary>
                [SomeAttri]
                public void Method() { }
            }
            """);
    }
 
    [WpfFact]
    public void TestConvertEventFieldToPropertyWithAttributeAndComment()
    {
        Test("""
            public class Bar
            {
                public event EventHandler MyEvent
                {
                    $$
                }
 
                /// <summary>
                /// </summary>
                [SomeAttri]
                public void Method() { }
            }
            """,
            """
            public class Bar
            {
                public event EventHandler MyEvent$$
 
                /// <summary>
                /// </summary>
                [SomeAttri]
                public void Method() { }
            }
            """);
    }
 
    protected override string Language => LanguageNames.CSharp;
 
    protected override Action CreateNextHandler(EditorTestWorkspace workspace)
        => () => { };
 
    internal override IChainedCommandHandler<AutomaticLineEnderCommandArgs> GetCommandHandler(EditorTestWorkspace workspace)
    {
        return Assert.IsType<AutomaticLineEnderCommandHandler>(
            workspace.GetService<ICommandHandler>(
                ContentTypeNames.CSharpContentType,
                PredefinedCommandHandlerNames.AutomaticLineEnder));
    }
}