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// 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 System.Diagnostics.CodeAnalysis;
using Microsoft.CodeAnalysis.CSharp.Formatting;
using Microsoft.CodeAnalysis.Editor.UnitTests.AutomaticCompletion;
using Microsoft.CodeAnalysis.Editor.UnitTests.CodeActions;
using Microsoft.CodeAnalysis.Formatting;
using Microsoft.CodeAnalysis.Test.Utilities;
using Roslyn.Test.Utilities;
using Xunit;
using static Microsoft.CodeAnalysis.BraceCompletion.AbstractBraceCompletionService;
namespace Microsoft.CodeAnalysis.Editor.CSharp.UnitTests.AutomaticCompletion;
[Trait(Traits.Feature, Traits.Features.AutomaticCompletion)]
public sealed class AutomaticBraceCompletionTests : AbstractAutomaticBraceCompletionTests
{
[WpfFact]
public void WithExpressionBracesSameLine()
{
var code = """
class C
{
void M(C c)
{
c = c with $$
}
}
""";
var expected = """
class C
{
void M(C c)
{
c = c with { }
}
}
""";
using var session = CreateSession(code);
Assert.NotNull(session);
CheckStart(session.Session);
CheckText(session.Session, expected);
}
[WpfFact, WorkItem("https://github.com/dotnet/roslyn/issues/47381")]
public void ImplicitObjectCreationExpressionBracesSameLine()
{
var code = """
class C
{
void M(C c)
{
c = new() $$
}
}
""";
var expected = """
class C
{
void M(C c)
{
c = new() { }
}
}
""";
using var session = CreateSession(code);
Assert.NotNull(session);
CheckStart(session.Session);
CheckText(session.Session, expected);
}
[WpfFact]
public void WithExpressionBracesSameLine_Enter()
{
var code = """
class C
{
void M(C c)
{
c = c with $$
}
}
""";
var expected = """
class C
{
void M(C c)
{
c = c with
{
}
}
}
""";
using var session = CreateSession(code);
CheckStart(session.Session);
CheckReturn(session.Session, 12, expected);
}
[WpfFact]
public void Creation()
{
using var session = CreateSession("$$");
Assert.NotNull(session);
}
[WpfFact]
public void InvalidLocation_String()
{
var code = """
class C
{
string s = "$$
}
""";
using var session = CreateSession(code);
Assert.Null(session);
}
[WpfFact]
public void InvalidLocation_String2()
{
var code = """
class C
{
string s = @"
$$
}
""";
using var session = CreateSession(code);
Assert.Null(session);
}
[WpfFact]
public void ValidLocation_InterpolatedString1()
{
var code = """
class C
{
string s = $"$$
}
""";
using var session = CreateSession(code);
Assert.NotNull(session);
CheckStart(session.Session);
}
[WpfFact]
public void ValidLocation_InterpolatedString2()
{
var code = """
class C
{
string s = $@"$$
}
""";
using var session = CreateSession(code);
Assert.NotNull(session);
CheckStart(session.Session);
}
[WpfFact]
public void ValidLocation_InterpolatedString3()
{
var code = """
class C
{
string x = "goo"
string s = $"{x} $$
}
""";
using var session = CreateSession(code);
Assert.NotNull(session);
CheckStart(session.Session);
}
[WpfFact]
public void ValidLocation_InterpolatedString4()
{
var code = """
class C
{
string x = "goo"
string s = $@"{x} $$
}
""";
using var session = CreateSession(code);
Assert.NotNull(session);
CheckStart(session.Session);
}
[WpfFact]
public void ValidLocation_InterpolatedString5()
{
var code = """
class C
{
string s = $"{{$$
}
""";
using var session = CreateSession(code);
Assert.NotNull(session);
CheckStart(session.Session);
}
[WpfFact]
public void ValidLocation_InterpolatedString6()
{
var code = """
class C
{
string s = $"{}$$
}
""";
using var session = CreateSession(code);
Assert.NotNull(session);
CheckStart(session.Session);
}
[WpfFact]
public void ValidLocation_InterpolatedString7()
{
var code = """
class C
{
string s = $"{}$$
}
""";
var expected = """
class C
{
string s = $"{}{
}
}
""";
using var session = CreateSession(code);
Assert.NotNull(session);
CheckStart(session.Session);
CheckReturn(session.Session, 0, expected);
}
[WpfFact]
public void InvalidLocation_InterpolatedString1()
{
var code = """
class C
{
string s = @"$$
}
""";
using var session = CreateSession(code);
Assert.Null(session);
}
[WpfFact]
public void InvalidLocation_InterpolatedString2()
{
var code = """
class C
{
string s = "$$
}
""";
using var session = CreateSession(code);
Assert.Null(session);
}
[WpfFact]
public void InvalidLocation_Comment()
{
var code = """
class C
{
//$$
}
""";
using var session = CreateSession(code);
Assert.Null(session);
}
[WpfFact]
public void InvalidLocation_Comment2()
{
var code = """
class C
{
/* $$
}
""";
using var session = CreateSession(code);
Assert.Null(session);
}
[WpfFact]
public void InvalidLocation_Comment3()
{
var code = """
class C
{
/// $$
}
""";
using var session = CreateSession(code);
Assert.Null(session);
}
[WpfFact]
public void InvalidLocation_Comment4()
{
var code = """
class C
{
/** $$
}
""";
using var session = CreateSession(code);
Assert.Null(session);
}
[WpfFact]
public void MultiLine_Comment()
{
var code = """
class C
{
void Method()
{
/* */$$
}
}
""";
using var session = CreateSession(code);
Assert.NotNull(session);
CheckStart(session.Session);
}
[WpfFact]
public void MultiLine_DocComment()
{
var code = """
class C
{
void Method()
{
/** */$$
}
}
""";
using var session = CreateSession(code);
Assert.NotNull(session);
CheckStart(session.Session);
}
[WpfFact]
public void String1()
{
var code = """
class C
{
void Method()
{
var s = ""$$
}
}
""";
using var session = CreateSession(code);
Assert.NotNull(session);
CheckStart(session.Session);
}
[WpfFact]
public void String2()
{
var code = """
class C
{
void Method()
{
var s = @""$$
}
}
""";
using var session = CreateSession(code);
Assert.NotNull(session);
CheckStart(session.Session);
}
[WpfFact]
public void Class_OpenBrace()
{
var code = @"class C $$";
using var session = CreateSession(code);
Assert.NotNull(session);
CheckStart(session.Session);
}
[WpfFact]
public void Class_Delete()
{
var code = @"class C $$";
using var session = CreateSession(code);
Assert.NotNull(session);
CheckStart(session.Session);
CheckBackspace(session.Session);
}
[WpfFact]
public void Class_Tab()
{
var code = @"class C $$";
using var session = CreateSession(code);
Assert.NotNull(session);
CheckStart(session.Session);
CheckTab(session.Session);
}
[WpfFact]
public void Class_CloseBrace()
{
var code = @"class C $$";
using var session = CreateSession(code);
Assert.NotNull(session);
CheckStart(session.Session);
CheckOverType(session.Session);
}
[WpfFact]
public void Method_OpenBrace_Multiple()
{
var code = """
class C
{
void Method() { $$
}
""";
using var session = CreateSession(code);
Assert.NotNull(session);
CheckStart(session.Session);
}
[WpfFact]
public void Class_OpenBrace_Enter()
{
var code = @"class C $$";
using var session = CreateSession(code);
Assert.NotNull(session);
CheckStart(session.Session);
CheckReturn(session.Session, 4);
}
[WpfFact, WorkItem("https://github.com/dotnet/roslyn/issues/47438")]
public void WithExpression()
{
var code = """
record C
{
void M()
{
_ = this with $$
}
}
""";
var expectedBeforeReturn = """
record C
{
void M()
{
_ = this with { }
}
}
""";
var expectedAfterReturn = """
record C
{
void M()
{
_ = this with
{
}
}
}
""";
using var session = CreateSession(code);
Assert.NotNull(session);
CheckStart(session.Session);
CheckText(session.Session, expectedBeforeReturn);
CheckReturn(session.Session, 12, expectedAfterReturn);
}
[WpfFact]
public void RecursivePattern()
{
var code = """
class C
{
void M()
{
_ = this is $$
}
}
""";
var expectedBeforeReturn = """
class C
{
void M()
{
_ = this is { }
}
}
""";
var expectedAfterReturn = """
class C
{
void M()
{
_ = this is
{
}
}
}
""";
using var session = CreateSession(code);
Assert.NotNull(session);
CheckStart(session.Session);
CheckText(session.Session, expectedBeforeReturn);
CheckReturn(session.Session, 12, expectedAfterReturn);
}
[WpfFact]
public void RecursivePattern_Nested()
{
var code = """
class C
{
void M()
{
_ = this is { Name: $$ }
}
}
""";
var expectedBeforeReturn = """
class C
{
void M()
{
_ = this is { Name: { } }
}
}
""";
var expectedAfterReturn = """
class C
{
void M()
{
_ = this is { Name:
{
} }
}
}
""";
using var session = CreateSession(code);
Assert.NotNull(session);
CheckStart(session.Session);
CheckText(session.Session, expectedBeforeReturn);
CheckReturn(session.Session, 12, expectedAfterReturn);
}
[WpfFact]
public void RecursivePattern_Parentheses1()
{
var code = """
class C
{
void M()
{
_ = this is { Name: $$ }
}
}
""";
var expected = """
class C
{
void M()
{
_ = this is { Name: () }
}
}
""";
using var session = CreateSession(EditorTestWorkspace.CreateCSharp(code), '(', ')');
Assert.NotNull(session);
CheckStart(session.Session);
CheckText(session.Session, expected);
}
[WpfFact]
public void RecursivePattern_Parentheses2()
{
var code = """
class C
{
void M()
{
_ = this is { Name: { Length: (> 3) and $$ } }
}
}
""";
var expected = """
class C
{
void M()
{
_ = this is { Name: { Length: (> 3) and () } }
}
}
""";
using var session = CreateSession(EditorTestWorkspace.CreateCSharp(code), '(', ')');
Assert.NotNull(session);
CheckStart(session.Session);
CheckText(session.Session, expected);
}
[WpfFact]
public void RecursivePattern_FollowedByInvocation()
{
var code = """
class C
{
void M()
{
_ = this is $$
M();
}
}
""";
var expectedBeforeReturn = """
class C
{
void M()
{
_ = this is { }
M();
}
}
""";
var expectedAfterReturn = """
class C
{
void M()
{
_ = this is
{
}
M();
}
}
""";
using var session = CreateSession(code);
Assert.NotNull(session);
CheckStart(session.Session);
CheckText(session.Session, expectedBeforeReturn);
CheckReturn(session.Session, 12, expectedAfterReturn);
}
[WpfFact]
public void RecursivePattern_WithInvocation_FollowedByInvocation()
{
var code = """
class C
{
void M()
{
_ = this is (1, 2) $$
M();
}
}
""";
var expectedBeforeReturn = """
class C
{
void M()
{
_ = this is (1, 2) { }
M();
}
}
""";
var expectedAfterReturn = """
class C
{
void M()
{
_ = this is (1, 2)
{
}
M();
}
}
""";
using var session = CreateSession(code);
Assert.NotNull(session);
CheckStart(session.Session);
CheckText(session.Session, expectedBeforeReturn);
CheckReturn(session.Session, 12, expectedAfterReturn);
}
[WpfFact]
public void SwitchExpression()
{
var code = """
class C
{
void M()
{
_ = this switch $$
}
}
""";
var expectedBeforeReturn = """
class C
{
void M()
{
_ = this switch { }
}
}
""";
var expectedAfterReturn = """
class C
{
void M()
{
_ = this switch
{
}
}
}
""";
using var session = CreateSession(code);
Assert.NotNull(session);
CheckStart(session.Session);
CheckText(session.Session, expectedBeforeReturn);
CheckReturn(session.Session, 12, expectedAfterReturn);
}
[WpfFact]
public void Class_ObjectInitializer_OpenBrace_Enter()
{
var code = """
using System.Collections.Generic;
class C
{
List<C> list = new List<C>
{
new C $$
};
}
""";
var expected = """
using System.Collections.Generic;
class C
{
List<C> list = new List<C>
{
new C
{
}
};
}
""";
using var session = CreateSession(code);
Assert.NotNull(session);
CheckStart(session.Session);
CheckReturn(session.Session, 12, expected);
}
[WpfFact, WorkItem("http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/1070773")]
public void Collection_Initializer_OpenBraceOnSameLine_Enter()
{
var code = """
using System.Collections.Generic;
class C
{
public void man()
{
List<C> list = new List<C> $$
}
}
""";
var expected = """
using System.Collections.Generic;
class C
{
public void man()
{
List<C> list = new List<C> {
}
}
}
""";
var globalOptions = new OptionsCollection(LanguageNames.CSharp)
{
{ CSharpFormattingOptions2.NewLineBeforeOpenBrace, CSharpFormattingOptions2.NewLineBeforeOpenBrace.DefaultValue.WithFlagValue(NewLineBeforeOpenBracePlacement.ObjectCollectionArrayInitializers, false) }
};
using var session = CreateSession(code, globalOptions);
Assert.NotNull(session);
CheckStart(session.Session);
CheckReturn(session.Session, 12, expected);
}
[WpfFact, WorkItem("http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/1070773")]
public void Collection_Initializer_OpenBraceOnDifferentLine_Enter()
{
var code = """
using System.Collections.Generic;
class C
{
public void man()
{
List<C> list = new List<C> $$
}
}
""";
var expected = """
using System.Collections.Generic;
class C
{
public void man()
{
List<C> list = new List<C>
{
}
}
}
""";
using var session = CreateSession(code);
Assert.NotNull(session);
CheckStart(session.Session);
CheckReturn(session.Session, 12, expected);
}
[WpfFact, WorkItem("http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/1070773")]
public void Object_Initializer_OpenBraceOnSameLine_Enter()
{
var code = """
class C
{
public void man()
{
var goo = new Goo $$
}
}
class Goo
{
public int bar;
}
""";
var expected = """
class C
{
public void man()
{
var goo = new Goo {
}
}
}
class Goo
{
public int bar;
}
""";
var globalOptions = new OptionsCollection(LanguageNames.CSharp)
{
{ CSharpFormattingOptions2.NewLineBeforeOpenBrace, CSharpFormattingOptions2.NewLineBeforeOpenBrace.DefaultValue.WithFlagValue(NewLineBeforeOpenBracePlacement.ObjectCollectionArrayInitializers, false) }
};
using var session = CreateSession(code, globalOptions);
Assert.NotNull(session);
CheckStart(session.Session);
CheckReturn(session.Session, 12, expected);
}
[WpfFact, WorkItem("http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/1070773")]
public void Object_Initializer_OpenBraceOnDifferentLine_Enter()
{
var code = """
class C
{
public void man()
{
var goo = new Goo $$
}
}
class Goo
{
public int bar;
}
""";
var expected = """
class C
{
public void man()
{
var goo = new Goo
{
}
}
}
class Goo
{
public int bar;
}
""";
using var session = CreateSession(code);
Assert.NotNull(session);
CheckStart(session.Session);
CheckReturn(session.Session, 12, expected);
}
[WpfFact, WorkItem("http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/1070773")]
public void ArrayImplicit_Initializer_OpenBraceOnSameLine_Enter()
{
var code = """
class C
{
public void man()
{
int[] arr = $$
}
}
""";
var expected = """
class C
{
public void man()
{
int[] arr = {
}
}
}
""";
var globalOptions = new OptionsCollection(LanguageNames.CSharp)
{
{ CSharpFormattingOptions2.NewLineBeforeOpenBrace, CSharpFormattingOptions2.NewLineBeforeOpenBrace.DefaultValue.WithFlagValue(NewLineBeforeOpenBracePlacement.ObjectCollectionArrayInitializers, false) }
};
using var session = CreateSession(code, globalOptions);
Assert.NotNull(session);
CheckStart(session.Session);
CheckReturn(session.Session, 12, expected);
}
[WpfFact, WorkItem("http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/1070773")]
public void ArrayImplicit_Initializer_OpenBraceOnDifferentLine_Enter()
{
var code = """
class C
{
public void man()
{
int[] arr = $$
}
}
""";
var expected = """
class C
{
public void man()
{
int[] arr =
{
}
}
}
""";
using var session = CreateSession(code);
Assert.NotNull(session);
CheckStart(session.Session);
CheckReturn(session.Session, 12, expected);
}
[WpfFact, WorkItem("http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/1070773")]
public void ArrayExplicit1_Initializer_OpenBraceOnSameLine_Enter()
{
var code = """
class C
{
public void man()
{
int[] arr = new[] $$
}
}
""";
var expected = """
class C
{
public void man()
{
int[] arr = new[] {
}
}
}
""";
var globalOptions = new OptionsCollection(LanguageNames.CSharp)
{
{ CSharpFormattingOptions2.NewLineBeforeOpenBrace, CSharpFormattingOptions2.NewLineBeforeOpenBrace.DefaultValue.WithFlagValue(NewLineBeforeOpenBracePlacement.ObjectCollectionArrayInitializers, false) }
};
using var session = CreateSession(code, globalOptions);
Assert.NotNull(session);
CheckStart(session.Session);
CheckReturn(session.Session, 12, expected);
}
[WpfFact, WorkItem("http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/1070773")]
public void ArrayExplicit1_Initializer_OpenBraceOnDifferentLine_Enter()
{
var code = """
class C
{
public void man()
{
int[] arr = new[] $$
}
}
""";
var expected = """
class C
{
public void man()
{
int[] arr = new[]
{
}
}
}
""";
using var session = CreateSession(code);
Assert.NotNull(session);
CheckStart(session.Session);
CheckReturn(session.Session, 12, expected);
}
[WpfFact, WorkItem("http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/1070773")]
public void ArrayExplicit2_Initializer_OpenBraceOnSameLine_Enter()
{
var code = """
class C
{
public void man()
{
int[] arr = new int[] $$
}
}
""";
var expected = """
class C
{
public void man()
{
int[] arr = new int[] {
}
}
}
""";
var globalOptions = new OptionsCollection(LanguageNames.CSharp)
{
{ CSharpFormattingOptions2.NewLineBeforeOpenBrace, CSharpFormattingOptions2.NewLineBeforeOpenBrace.DefaultValue.WithFlagValue(NewLineBeforeOpenBracePlacement.ObjectCollectionArrayInitializers, false) }
};
using var session = CreateSession(code, globalOptions);
Assert.NotNull(session);
CheckStart(session.Session);
CheckReturn(session.Session, 12, expected);
}
[WpfFact, WorkItem("http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/1070773")]
public void ArrayExplicit2_Initializer_OpenBraceOnDifferentLine_Enter()
{
var code = """
class C
{
public void man()
{
int[] arr = new int[] $$
}
}
""";
var expected = """
class C
{
public void man()
{
int[] arr = new int[]
{
}
}
}
""";
using var session = CreateSession(code);
Assert.NotNull(session);
CheckStart(session.Session);
CheckReturn(session.Session, 12, expected);
}
[WorkItem("https://github.com/dotnet/roslyn/issues/3447")]
[WpfFact, WorkItem("http://vstfdevdiv:8080/DevDiv2/DevDiv/_workitems/edit/850540")]
public void BlockIndentationWithAutomaticBraceFormattingDisabled()
{
var code = """
class C
{
public void X()
$$
}
""";
var expected = """
class C
{
public void X()
{}
}
""";
var expectedAfterReturn = """
class C
{
public void X()
{
}
}
""";
var globalOptions = new OptionsCollection(LanguageNames.CSharp)
{
{ AutoFormattingOptionsStorage.FormatOnCloseBrace, false },
{ FormattingOptions2.SmartIndent, FormattingOptions2.IndentStyle.Block },
};
using var session = CreateSession(code, globalOptions);
Assert.NotNull(session);
CheckStart(session.Session);
Assert.Equal(expected, session.Session.SubjectBuffer.CurrentSnapshot.GetText());
CheckReturn(session.Session, 4, expectedAfterReturn);
}
[WpfFact, WorkItem("https://github.com/dotnet/roslyn/issues/2224")]
public void NoSmartOrBlockIndentationWithAutomaticBraceFormattingDisabled()
{
var code = """
namespace NS1
{
public class C1
$$
}
""";
var expected = """
namespace NS1
{
public class C1
{ }
}
""";
var globalOptions = new OptionsCollection(LanguageNames.CSharp)
{
{ FormattingOptions2.SmartIndent, FormattingOptions2.IndentStyle.None },
};
using var session = CreateSession(code, globalOptions);
Assert.NotNull(session);
CheckStart(session.Session);
Assert.Equal(expected, session.Session.SubjectBuffer.CurrentSnapshot.GetText());
}
[WpfFact, WorkItem("https://github.com/dotnet/roslyn/issues/2330")]
public void BlockIndentationWithAutomaticBraceFormatting()
{
var code = """
namespace NS1
{
public class C1
$$
}
""";
var expected = """
namespace NS1
{
public class C1
{ }
}
""";
var expectedAfterReturn = """
namespace NS1
{
public class C1
{
}
}
""";
var globalOptions = new OptionsCollection(LanguageNames.CSharp)
{
{ FormattingOptions2.SmartIndent, FormattingOptions2.IndentStyle.Block },
};
using var session = CreateSession(code, globalOptions);
Assert.NotNull(session);
CheckStart(session.Session);
Assert.Equal(expected, session.Session.SubjectBuffer.CurrentSnapshot.GetText());
CheckReturn(session.Session, 8, expectedAfterReturn);
}
[WpfFact, WorkItem("https://github.com/dotnet/roslyn/issues/2330")]
public void BlockIndentationWithAutomaticBraceFormattingSecondSet()
{
var code = """
namespace NS1
{
public class C1
{ public class C2 $$
}
}
""";
var expected = """
namespace NS1
{
public class C1
{ public class C2 { }
}
}
""";
var expectedAfterReturn = """
namespace NS1
{
public class C1
{ public class C2 {
}
}
}
""";
var globalOptions = new OptionsCollection(LanguageNames.CSharp)
{
{ FormattingOptions2.SmartIndent, FormattingOptions2.IndentStyle.Block },
};
using var session = CreateSession(code, globalOptions);
Assert.NotNull(session);
CheckStart(session.Session);
Assert.Equal(expected, session.Session.SubjectBuffer.CurrentSnapshot.GetText());
CheckReturn(session.Session, 8, expectedAfterReturn);
}
[WpfFact]
public void DoesNotFormatInsideBracePairInInitializers()
{
var code = """
class C
{
void M()
{
var x = new int[]$$
}
}
""";
var expected = """
class C
{
void M()
{
var x = new int[] {}
}
}
""";
using var session = CreateSession(code);
Assert.NotNull(session);
CheckStart(session.Session);
CheckText(session.Session, expected);
}
[WpfFact]
public void DoesNotFormatOnReturnWithNonWhitespaceInBetween()
{
var code = @"class C $$";
var expected = """
class C { dd
}
""";
using var session = CreateSession(code);
Assert.NotNull(session);
CheckStart(session.Session);
Type(session.Session, "dd");
CheckReturn(session.Session, 0, expected);
}
[WpfFact]
public void CurlyBraceFormattingInsideLambdaInsideInterpolation()
{
var code = """
class C
{
void M(string[] args)
{
var s = $"{ args.Select(a => $$)}"
}
}
""";
var expectedAfterStart = """
class C
{
void M(string[] args)
{
var s = $"{ args.Select(a => { })}"
}
}
""";
using var session = CreateSession(code);
Assert.NotNull(session);
CheckStart(session.Session);
Assert.Equal(expectedAfterStart, session.Session.SubjectBuffer.CurrentSnapshot.GetText());
}
[WpfFact]
public void CurlyBraceFormatting_DoesNotAddNewLineWhenAlreadyExists()
{
var code = @"class C $$";
var expected = """
class C
{
}
""";
using var session = CreateSession(code);
Assert.NotNull(session);
CheckStart(session.Session);
// Sneakily insert a new line between the braces.
var buffer = session.Session.SubjectBuffer;
buffer.Insert(10, Environment.NewLine);
CheckReturn(session.Session, 4, expected);
}
[WpfFact]
public void CurlyBraceFormatting_InsertsCorrectNewLine()
{
var code = @"class C $$";
var globalOptions = new OptionsCollection(LanguageNames.CSharp)
{
{ FormattingOptions2.NewLine, "\r" }
};
using var session = CreateSession(code, globalOptions);
Assert.NotNull(session);
CheckStart(session.Session);
CheckReturn(session.Session, 4, result: "class C\r{\r\r}");
}
[WorkItem("https://github.com/dotnet/roslyn/issues/50275")]
[WpfTheory, CombinatorialData]
public void WithInitializer_Enter(bool bracesOnNewLine)
{
var code = """
record R
{
public void man(R r)
{
var r2 = r with $$
}
}
""";
var expected = bracesOnNewLine ? """
record R
{
public void man(R r)
{
var r2 = r with
{
}
}
}
""" : """
record R
{
public void man(R r)
{
var r2 = r with {
}
}
}
""";
var globalOptions = new OptionsCollection(LanguageNames.CSharp)
{
{ CSharpFormattingOptions2.NewLineBeforeOpenBrace, CSharpFormattingOptions2.NewLineBeforeOpenBrace.DefaultValue.WithFlagValue(NewLineBeforeOpenBracePlacement.ObjectCollectionArrayInitializers, bracesOnNewLine) }
};
using var session = CreateSession(code, globalOptions);
Assert.NotNull(session);
CheckStart(session.Session);
CheckReturn(session.Session, 12, expected);
}
[WorkItem("https://github.com/dotnet/roslyn/issues/50275")]
[WpfTheory, CombinatorialData]
public void PropertyPatternClause_Enter(bool bracesOnNewLine)
{
var code = """
class C
{
public void man()
{
if (x is string $$
}
}
""";
var expected = bracesOnNewLine ? """
class C
{
public void man()
{
if (x is string
{
}
}
}
""" : """
class C
{
public void man()
{
if (x is string {
}
}
}
""";
var globalOptions = new OptionsCollection(LanguageNames.CSharp)
{
{ CSharpFormattingOptions2.NewLineBeforeOpenBrace, CSharpFormattingOptions2.NewLineBeforeOpenBrace.DefaultValue.WithFlagValue(NewLineBeforeOpenBracePlacement.ObjectCollectionArrayInitializers, bracesOnNewLine) }
};
using var session = CreateSession(code, globalOptions);
Assert.NotNull(session);
CheckStart(session.Session);
CheckReturn(session.Session, bracesOnNewLine ? 16 : 12, expected);
}
[WorkItem("https://github.com/dotnet/roslyn/issues/50275")]
[WpfTheory, CombinatorialData]
public void Accessor_Enter(bool bracesOnNewLine)
{
var code = """
class C
{
public int I
{
get $$
}
}
""";
var expected = bracesOnNewLine ? """
class C
{
public int I
{
get
{
}
}
}
""" : """
class C
{
public int I
{
get {
}
}
}
""";
var globalOptions = new OptionsCollection(LanguageNames.CSharp)
{
{ CSharpFormattingOptions2.NewLineBeforeOpenBrace, CSharpFormattingOptions2.NewLineBeforeOpenBrace.DefaultValue.WithFlagValue(NewLineBeforeOpenBracePlacement.Accessors, bracesOnNewLine) }
};
using var session = CreateSession(code, globalOptions);
Assert.NotNull(session);
CheckStart(session.Session);
CheckReturn(session.Session, 12, expected);
}
[WorkItem("https://github.com/dotnet/roslyn/issues/50275")]
[WpfTheory, CombinatorialData]
public void AnonymousMethod_Enter(bool bracesOnNewLine)
{
var code = """
class C
{
public void man()
{
Action a = delegate() $$
}
}
""";
var expected = bracesOnNewLine ? """
class C
{
public void man()
{
Action a = delegate()
{
}
}
}
""" : """
class C
{
public void man()
{
Action a = delegate() {
}
}
}
""";
var globalOptions = new OptionsCollection(LanguageNames.CSharp)
{
{ CSharpFormattingOptions2.NewLineBeforeOpenBrace, CSharpFormattingOptions2.NewLineBeforeOpenBrace.DefaultValue.WithFlagValue(NewLineBeforeOpenBracePlacement.AnonymousMethods, bracesOnNewLine) }
};
using var session = CreateSession(code, globalOptions);
Assert.NotNull(session);
CheckStart(session.Session);
CheckReturn(session.Session, 12, expected);
}
[WorkItem("https://github.com/dotnet/roslyn/issues/50275")]
[WpfTheory, CombinatorialData]
public void AnonymousType_Enter(bool bracesOnNewLine)
{
var code = """
class C
{
public void man()
{
var x = new $$
}
}
""";
var expected = bracesOnNewLine ? """
class C
{
public void man()
{
var x = new
{
}
}
}
""" : """
class C
{
public void man()
{
var x = new {
}
}
}
""";
var globalOptions = new OptionsCollection(LanguageNames.CSharp)
{
{ CSharpFormattingOptions2.NewLineBeforeOpenBrace, CSharpFormattingOptions2.NewLineBeforeOpenBrace.DefaultValue.WithFlagValue(NewLineBeforeOpenBracePlacement.AnonymousTypes, bracesOnNewLine) }
};
using var session = CreateSession(code, globalOptions);
Assert.NotNull(session);
CheckStart(session.Session);
CheckReturn(session.Session, 12, expected);
}
[WorkItem("https://github.com/dotnet/roslyn/issues/50275")]
[WpfTheory, CombinatorialData]
public void If_OpenBraceOnSameLine_Enter(bool bracesOnNewLine)
{
var code = """
class C
{
public void man()
{
if (true) $$
}
}
""";
var expected = bracesOnNewLine ? """
class C
{
public void man()
{
if (true)
{
}
}
}
""" : """
class C
{
public void man()
{
if (true) {
}
}
}
""";
var globalOptions = new OptionsCollection(LanguageNames.CSharp)
{
{ CSharpFormattingOptions2.NewLineBeforeOpenBrace, CSharpFormattingOptions2.NewLineBeforeOpenBrace.DefaultValue.WithFlagValue(NewLineBeforeOpenBracePlacement.ControlBlocks, bracesOnNewLine) }
};
using var session = CreateSession(code, globalOptions);
Assert.NotNull(session);
CheckStart(session.Session);
CheckReturn(session.Session, 12, expected);
}
[WorkItem("https://github.com/dotnet/roslyn/issues/50275")]
[WpfTheory, CombinatorialData]
public void Else_OpenBraceOnSameLine_Enter(bool bracesOnNewLine)
{
var code = """
class C
{
public void man()
{
if (true) {
}
else $$
}
}
""";
var expected = bracesOnNewLine ? """
class C
{
public void man()
{
if (true) {
}
else
{
}
}
}
""" : """
class C
{
public void man()
{
if (true) {
}
else {
}
}
}
""";
var globalOptions = new OptionsCollection(LanguageNames.CSharp)
{
{ CSharpFormattingOptions2.NewLineBeforeOpenBrace, CSharpFormattingOptions2.NewLineBeforeOpenBrace.DefaultValue.WithFlagValue(NewLineBeforeOpenBracePlacement.ControlBlocks, bracesOnNewLine) }
};
using var session = CreateSession(code, globalOptions);
Assert.NotNull(session);
CheckStart(session.Session);
CheckReturn(session.Session, 12, expected);
}
[WpfFact, WorkItem("https://devdiv.visualstudio.com/DevDiv/_workitems/edit/1758005")]
public void NoFormattingAfterNewlineIfOptionsDisabled()
{
var code = """
namespace NS1
$$
""";
var expected = """
namespace NS1
{}
""";
var expectedAfterReturn = """
namespace NS1
{
}
""";
// Those option ensures no additional formatting would happen around added braces, including indention of added newline
var globalOptions = new OptionsCollection(LanguageNames.CSharp)
{
{ FormattingOptions2.SmartIndent, FormattingOptions2.IndentStyle.None },
{ AutoFormattingOptionsStorage.FormatOnCloseBrace, false },
};
using var session = CreateSession(code, globalOptions);
Assert.NotNull(session);
CheckStart(session.Session);
Assert.Equal(expected, session.Session.SubjectBuffer.CurrentSnapshot.GetText());
CheckReturn(session.Session, 0, expectedAfterReturn);
}
internal static Holder CreateSession(
[StringSyntax(PredefinedEmbeddedLanguageNames.CSharpTest)] string code,
OptionsCollection? globalOptions = null)
{
return CreateSession(
EditorTestWorkspace.CreateCSharp(code),
CurlyBrace.OpenCharacter, CurlyBrace.CloseCharacter, globalOptions);
}
}
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