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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.Threading.Tasks;
using Microsoft.CodeAnalysis.CodeFixes;
using Microsoft.CodeAnalysis.CSharp;
using Microsoft.CodeAnalysis.CSharp.Test.Utilities;
using Microsoft.CodeAnalysis.CSharp.UseAutoProperty;
using Microsoft.CodeAnalysis.Diagnostics;
using Microsoft.CodeAnalysis.Editor.CSharp.UnitTests.Diagnostics;
using Microsoft.CodeAnalysis.Formatting;
using Microsoft.CodeAnalysis.Test.Utilities;
using Roslyn.Test.Utilities;
using Xunit;
using Xunit.Abstractions;
namespace Microsoft.CodeAnalysis.Editor.CSharp.UnitTests.UseAutoProperty;
[Trait(Traits.Feature, Traits.Features.CodeActionsUseAutoProperty)]
public sealed partial class UseAutoPropertyTests(ITestOutputHelper logger)
: AbstractCSharpDiagnosticProviderBasedUserDiagnosticTest_NoEditor(logger)
{
private readonly ParseOptions CSharp12 = CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp12);
internal override (DiagnosticAnalyzer, CodeFixProvider) CreateDiagnosticProviderAndFixer(Workspace workspace)
=> (new CSharpUseAutoPropertyAnalyzer(), GetCSharpUseAutoPropertyCodeFixProvider());
[Fact]
public async Task TestSingleGetterFromField()
{
await TestInRegularAndScript1Async(
"""
class Class
{
[|int i|];
int P
{
get
{
return i;
}
}
}
""",
"""
class Class
{
int P { get; }
}
""");
}
[Fact]
public async Task TestSingleGetterFromField_FileScopedNamespace()
{
await TestInRegularAndScript1Async(
"""
namespace N;
class Class
{
[|int i|];
int P
{
get
{
return i;
}
}
}
""",
"""
namespace N;
class Class
{
int P { get; }
}
""");
}
[Fact]
public async Task TestSingleGetterFromField_InRecord()
{
await TestInRegularAndScript1Async(
"""
record Class
{
[|int i|];
int P
{
get
{
return i;
}
}
}
""",
"""
record Class
{
int P { get; }
}
""", new TestParameters(TestOptions.RegularPreview));
}
[Fact, WorkItem("https://github.com/dotnet/roslyn/issues/28511")]
public async Task TestNullable1()
{
// ⚠ The expected outcome of this test should not change.
await TestMissingInRegularAndScriptAsync(
"""
class Class
{
[|MutableInt? i|];
MutableInt? P
{
get
{
return i;
}
}
}
struct MutableInt { public int Value; }
""");
}
[Fact, WorkItem("https://github.com/dotnet/roslyn/issues/28511")]
public async Task TestNullable2()
{
await TestInRegularAndScript1Async(
"""
class Class
{
[|readonly MutableInt? i|];
MutableInt? P
{
get
{
return i;
}
}
}
struct MutableInt { public int Value; }
""",
"""
class Class
{
MutableInt? P { get; }
}
struct MutableInt { public int Value; }
""");
}
[Fact, WorkItem("https://github.com/dotnet/roslyn/issues/28511")]
public async Task TestNullable3()
{
await TestInRegularAndScript1Async(
"""
class Class
{
[|int? i|];
int? P
{
get
{
return i;
}
}
}
""",
"""
class Class
{
int? P { get; }
}
""");
}
[Fact, WorkItem("https://github.com/dotnet/roslyn/issues/28511")]
public async Task TestNullable4()
{
await TestInRegularAndScript1Async(
"""
class Class
{
[|readonly int? i|];
int? P
{
get
{
return i;
}
}
}
""",
"""
class Class
{
int? P { get; }
}
""");
}
[Fact, WorkItem("https://github.com/dotnet/roslyn/issues/28511")]
public async Task TestNullable5()
{
// Recursive type check
await TestMissingInRegularAndScriptAsync(
"""
using System;
class Class
{
[|Nullable<MutableInt?> i|];
Nullable<MutableInt?> P
{
get
{
return i;
}
}
}
struct MutableInt { public int Value; }
""");
}
[Fact, WorkItem("https://github.com/dotnet/roslyn/issues/28511")]
public async Task TestMutableValueType1()
{
await TestMissingInRegularAndScriptAsync(
"""
class Class
{
[|MutableInt i|];
MutableInt P
{
get
{
return i;
}
}
}
struct MutableInt { public int Value; }
""");
}
[Fact, WorkItem("https://github.com/dotnet/roslyn/issues/28511")]
public async Task TestMutableValueType2()
{
await TestInRegularAndScript1Async(
"""
class Class
{
[|readonly MutableInt i|];
MutableInt P
{
get
{
return i;
}
}
}
struct MutableInt { public int Value; }
""",
"""
class Class
{
MutableInt P { get; }
}
struct MutableInt { public int Value; }
""");
}
[Fact, WorkItem("https://github.com/dotnet/roslyn/issues/28511")]
public async Task TestMutableValueType3()
{
await TestMissingInRegularAndScriptAsync(
"""
class Class
{
[|MutableInt i|];
MutableInt P
{
get
{
return i;
}
}
}
struct MutableInt { public int Value { get; set; } }
""");
}
[Fact, WorkItem("https://github.com/dotnet/roslyn/issues/28511")]
public async Task TestErrorType1()
{
await TestMissingInRegularAndScriptAsync(
"""
class Class
{
[|ErrorType i|];
ErrorType P
{
get
{
return i;
}
}
}
""");
}
[Fact, WorkItem("https://github.com/dotnet/roslyn/issues/28511")]
public async Task TestErrorType2()
{
await TestInRegularAndScript1Async(
"""
class Class
{
[|readonly ErrorType i|];
ErrorType P
{
get
{
return i;
}
}
}
""",
"""
class Class
{
ErrorType P { get; }
}
""");
}
[Fact, WorkItem("https://github.com/dotnet/roslyn/issues/28511")]
public async Task TestErrorType3()
{
await TestMissingInRegularAndScriptAsync(
"""
class Class
{
[|ErrorType? i|];
ErrorType? P
{
get
{
return i;
}
}
}
""");
}
[Fact, WorkItem("https://github.com/dotnet/roslyn/issues/28511")]
public async Task TestErrorType4()
{
await TestInRegularAndScript1Async(
"""
class Class
{
[|readonly ErrorType? i|];
ErrorType? P
{
get
{
return i;
}
}
}
""",
"""
class Class
{
ErrorType? P { get; }
}
""");
}
[Fact, WorkItem("https://github.com/dotnet/roslyn/issues/28511")]
public async Task TestErrorType5()
{
await TestInRegularAndScript1Async(
"""
class Class
{
[|ErrorType[] i|];
ErrorType[] P
{
get
{
return i;
}
}
}
""",
"""
class Class
{
ErrorType[] P { get; }
}
""");
}
[Fact]
public async Task TestCSharp5_1()
{
await TestAsync(
"""
class Class
{
[|int i|];
public int P
{
get
{
return i;
}
}
}
""",
"""
class Class
{
public int P { get; private set; }
}
""",
CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp5));
}
[Fact]
public async Task TestCSharp5_2()
{
await TestMissingAsync(
"""
class Class
{
[|readonly int i|];
int P
{
get
{
return i;
}
}
}
""", new TestParameters(CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp5)));
}
[Fact]
public async Task TestInitializer()
{
await TestInRegularAndScript1Async(
"""
class Class
{
[|int i = 1|];
int P
{
get
{
return i;
}
}
}
""",
"""
class Class
{
int P { get; } = 1;
}
""");
}
[Fact]
public async Task TestInitializer_CSharp5()
{
await TestMissingAsync(
"""
class Class
{
[|int i = 1|];
int P
{
get
{
return i;
}
}
}
""", new TestParameters(CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp5)));
}
[Fact]
public async Task TestSingleGetterFromProperty()
{
await TestInRegularAndScript1Async(
"""
class Class
{
int i;
[|int P
{
get
{
return i;
}
}|]
}
""",
"""
class Class
{
int P { get; }
}
""");
}
[Fact]
public async Task TestSingleSetter()
{
await TestMissingInRegularAndScriptAsync(
"""
class Class
{
[|int i|];
int P
{
set
{
i = value;
}
}
}
""");
}
[Fact]
public async Task TestGetterAndSetter()
{
await TestInRegularAndScript1Async(
"""
class Class
{
[|int i|];
int P
{
get
{
return i;
}
set
{
i = value;
}
}
}
""",
"""
class Class
{
int P { get; set; }
}
""");
}
[Fact]
public async Task TestSingleGetterWithThis()
{
await TestInRegularAndScript1Async(
"""
class Class
{
[|int i|];
int P
{
get
{
return this.i;
}
}
}
""",
"""
class Class
{
int P { get; }
}
""");
}
[Fact]
public async Task TestSingleSetterWithThis()
{
await TestMissingInRegularAndScriptAsync(
"""
class Class
{
[|int i|];
int P
{
set
{
this.i = value;
}
}
}
""");
}
[Fact]
public async Task TestGetterAndSetterWithThis()
{
await TestInRegularAndScript1Async(
"""
class Class
{
[|int i|];
int P
{
get
{
return this.i;
}
set
{
this.i = value;
}
}
}
""",
"""
class Class
{
int P { get; set; }
}
""");
}
[Fact]
public async Task TestGetterWithMultipleStatements_CSharp12()
{
await TestMissingInRegularAndScriptAsync(
"""
class Class
{
[|int i|];
int P
{
get
{
;
return i;
}
}
}
""", new TestParameters(parseOptions: CSharp12));
}
[Fact]
public async Task TestSetterWithMultipleStatements_CSharp12()
{
await TestMissingInRegularAndScriptAsync(
"""
class Class
{
[|int i|];
int P
{
set
{
;
i = value;
}
}
}
""");
}
[Fact]
public async Task TestSetterWithMultipleStatementsAndGetterWithSingleStatement()
{
await TestMissingInRegularAndScriptAsync(
"""
class Class
{
[|int i|];
int P
{
get
{
return i;
}
set
{
;
i = value;
}
}
}
""", new TestParameters(parseOptions: CSharp12));
}
[Fact]
public async Task TestGetterAndSetterUseDifferentFields()
{
await TestMissingInRegularAndScriptAsync(
"""
class Class
{
[|int i|];
int j;
int P
{
get
{
return i;
}
set
{
j = value;
}
}
}
""");
}
[Fact]
public async Task TestFieldAndPropertyHaveDifferentStaticInstance()
{
await TestMissingInRegularAndScriptAsync(
"""
class Class
{
[|static int i|];
int P
{
get
{
return i;
}
}
}
""");
}
[Fact]
public async Task TestNotIfFieldUsedInRefArgument1()
{
await TestMissingInRegularAndScriptAsync(
"""
class Class
{
[|int i|];
int P
{
get
{
return i;
}
}
void M(ref int x)
{
M(ref i);
}
}
""");
}
[Fact]
public async Task TestNotIfFieldUsedInRefArgument2()
{
await TestMissingInRegularAndScriptAsync(
"""
class Class
{
[|int i|];
int P
{
get
{
return i;
}
}
void M(ref int x)
{
M(ref this.i);
}
}
""");
}
[Fact]
public async Task TestNotIfFieldUsedInOutArgument()
{
await TestMissingInRegularAndScriptAsync(
"""
class Class
{
[|int i|];
int P
{
get
{
return i;
}
}
void M(out int x)
{
M(out i);
}
}
""");
}
[Fact]
public async Task TestNotIfFieldUsedInInArgument()
{
await TestMissingInRegularAndScriptAsync(
"""
class Class
{
[|int i|];
int P
{
get
{
return i;
}
}
void M(in int x)
{
M(in i);
}
}
""");
}
[Fact, WorkItem("https://github.com/dotnet/roslyn/issues/25429")]
public async Task TestNotIfFieldUsedInRefExpression()
{
await TestMissingInRegularAndScriptAsync(
"""
class Class
{
[|int i|];
int P
{
get
{
return i;
}
}
void M()
{
ref int x = ref i;
}
}
""");
}
[Fact]
public async Task TestNotIfFieldUsedInRefExpression_AsCandidateSymbol()
{
await TestMissingInRegularAndScriptAsync(
"""
class Class
{
[|int i|];
int P
{
get
{
return i;
}
}
void M()
{
// because we refer to 'i' statically, it only gets resolved as a candidate symbol
// let's be conservative here and disable the analyzer if we're not sure
ref int x = ref Class.i;
}
}
""");
}
[Fact]
public async Task TestIfUnrelatedSymbolUsedInRefExpression()
{
await TestInRegularAndScript1Async(
"""
class Class
{
[|int i|];
int j;
int P
{
get
{
return i;
}
}
void M()
{
int i;
ref int x = ref i;
ref int y = ref j;
}
}
""",
"""
class Class
{
int j;
int P { get; }
void M()
{
int i;
ref int x = ref i;
ref int y = ref j;
}
}
""");
}
[Fact]
public async Task TestNotWithVirtualProperty()
{
await TestMissingInRegularAndScriptAsync(
"""
class Class
{
[|int i|];
public virtual int P
{
get
{
return i;
}
}
}
""");
}
[Fact]
public async Task TestNotWithConstField()
{
await TestMissingInRegularAndScriptAsync(
"""
class Class
{
[|const int i|];
int P
{
get
{
return i;
}
}
}
""");
}
[Fact, WorkItem("https://github.com/dotnet/roslyn/issues/25379")]
public async Task TestNotWithVolatileField()
{
await TestMissingInRegularAndScriptAsync(
"""
class Class
{
[|volatile int i|];
int P
{
get
{
return i;
}
}
}
""");
}
[Fact]
public async Task TestFieldWithMultipleDeclarators1()
{
await TestInRegularAndScript1Async(
"""
class Class
{
int [|i|], j, k;
int P
{
get
{
return i;
}
}
}
""",
"""
class Class
{
int j, k;
int P { get; }
}
""");
}
[Fact]
public async Task TestFieldWithMultipleDeclarators2()
{
await TestInRegularAndScript1Async(
"""
class Class
{
int i, [|j|], k;
int P
{
get
{
return j;
}
}
}
""",
"""
class Class
{
int i, k;
int P { get; }
}
""");
}
[Fact]
public async Task TestFieldWithMultipleDeclarators3()
{
await TestInRegularAndScript1Async(
"""
class Class
{
int i, j, [|k|];
int P
{
get
{
return k;
}
}
}
""",
"""
class Class
{
int i, j;
int P { get; }
}
""");
}
[Fact]
public async Task TestFieldAndPropertyInDifferentParts()
{
await TestInRegularAndScript1Async(
"""
partial class Class
{
[|int i|];
}
partial class Class
{
int P
{
get
{
return i;
}
}
}
""",
"""
partial class Class
{
}
partial class Class
{
int P { get; }
}
""");
}
[Fact]
public async Task TestWithFieldWithAttribute()
{
await TestInRegularAndScriptAsync(
"""
class Class
{
[|[A]
int i|];
int P
{
get
{
return i;
}
}
}
""",
"""
class Class
{
[field: A]
int P { get; }
}
""");
}
[Fact]
public async Task TestUpdateReferences()
{
await TestInRegularAndScript1Async(
"""
class Class
{
[|int i|];
int P
{
get
{
return i;
}
}
public Class()
{
i = 1;
}
}
""",
"""
class Class
{
int P { get; }
public Class()
{
P = 1;
}
}
""");
}
[Fact]
public async Task TestUpdateReferencesConflictResolution()
{
await TestInRegularAndScript1Async(
"""
class Class
{
[|int i|];
int P
{
get
{
return i;
}
}
public Class(int P)
{
i = 1;
}
}
""",
"""
class Class
{
int P { get; }
public Class(int P)
{
this.P = 1;
}
}
""");
}
[Fact]
public async Task TestWriteInConstructor()
{
await TestInRegularAndScript1Async(
"""
class Class
{
[|int i|];
int P
{
get
{
return i;
}
}
public Class()
{
i = 1;
}
}
""",
"""
class Class
{
int P { get; }
public Class()
{
P = 1;
}
}
""");
}
[Fact]
public async Task TestWriteInNotInConstructor1()
{
await TestInRegularAndScript1Async(
"""
class Class
{
[|int i|];
int P
{
get
{
return i;
}
}
public void Goo()
{
i = 1;
}
}
""",
"""
class Class
{
int P { get; set; }
public void Goo()
{
P = 1;
}
}
""");
}
[Fact]
public async Task TestWriteInNotInConstructor2()
{
await TestInRegularAndScript1Async(
"""
class Class
{
[|int i|];
public int P
{
get
{
return i;
}
}
public void Goo()
{
i = 1;
}
}
""",
"""
class Class
{
public int P { get; private set; }
public void Goo()
{
P = 1;
}
}
""");
}
[Fact, WorkItem("https://github.com/dotnet/roslyn/issues/30108")]
public async Task TestWriteInSimpleExpressionLambdaInConstructor()
{
await TestInRegularAndScript1Async(
"""
using System;
class C
{
[|int i|];
int P => i;
C()
{
Action<int> x = _ => i = 1;
}
}
""",
"""
using System;
class C
{
int P { get; set; }
C()
{
Action<int> x = _ => P = 1;
}
}
""");
}
[Fact, WorkItem("https://github.com/dotnet/roslyn/issues/30108")]
public async Task TestWriteInSimpleBlockLambdaInConstructor()
{
await TestInRegularAndScript1Async(
"""
using System;
class C
{
[|int i|];
int P => i;
C()
{
Action<int> x = _ =>
{
i = 1;
};
}
}
""",
"""
using System;
class C
{
int P { get; set; }
C()
{
Action<int> x = _ =>
{
P = 1;
};
}
}
""");
}
[Fact, WorkItem("https://github.com/dotnet/roslyn/issues/30108")]
public async Task TestWriteInParenthesizedExpressionLambdaInConstructor()
{
await TestInRegularAndScript1Async(
"""
using System;
class C
{
[|int i|];
int P => i;
C()
{
Action x = () => i = 1;
}
}
""",
"""
using System;
class C
{
int P { get; set; }
C()
{
Action x = () => P = 1;
}
}
""");
}
[Fact, WorkItem("https://github.com/dotnet/roslyn/issues/30108")]
public async Task TestWriteInParenthesizedBlockLambdaInConstructor()
{
await TestInRegularAndScript1Async(
"""
using System;
class C
{
[|int i|];
int P => i;
C()
{
Action x = () =>
{
i = 1;
};
}
}
""",
"""
using System;
class C
{
int P { get; set; }
C()
{
Action x = () =>
{
P = 1;
};
}
}
""");
}
[Fact, WorkItem("https://github.com/dotnet/roslyn/issues/30108")]
public async Task TestWriteInAnonymousMethodInConstructor()
{
await TestInRegularAndScript1Async(
"""
using System;
class C
{
[|int i|];
int P => i;
C()
{
Action x = delegate ()
{
i = 1;
};
}
}
""",
"""
using System;
class C
{
int P { get; set; }
C()
{
Action x = delegate ()
{
P = 1;
};
}
}
""");
}
[Fact, WorkItem("https://github.com/dotnet/roslyn/issues/30108")]
public async Task TestWriteInLocalFunctionInConstructor()
{
await TestInRegularAndScript1Async(
"""
class C
{
[|int i|];
int P => i;
C()
{
void F()
{
i = 1;
}
}
}
""",
"""
class C
{
int P { get; set; }
C()
{
void F()
{
P = 1;
}
}
}
""");
}
[Fact, WorkItem("https://github.com/dotnet/roslyn/issues/30108")]
public async Task TestWriteInExpressionBodiedLocalFunctionInConstructor()
{
await TestInRegularAndScript1Async(
"""
class C
{
[|int i|];
int P => i;
C()
{
void F() => i = 1;
}
}
""",
"""
class C
{
int P { get; set; }
C()
{
void F() => P = 1;
}
}
""");
}
[Fact]
public async Task TestReadInExpressionBodiedLocalFunctionInConstructor()
{
await TestInRegularAndScript1Async(
"""
class C
{
[|int i|];
int P => i;
C()
{
bool F() => i == 1;
}
}
""",
"""
class C
{
int P { get; }
C()
{
bool F() => P == 1;
}
}
""");
}
[Fact]
public async Task TestAlreadyAutoPropertyWithGetterWithNoBody()
{
await TestMissingInRegularAndScriptAsync(
"""
class Class
{
public int [|P|] { get; }
}
""");
}
[Fact]
public async Task TestAlreadyAutoPropertyWithGetterAndSetterWithNoBody()
{
await TestMissingInRegularAndScriptAsync(
"""
class Class
{
public int [|P|] { get; set; }
}
""");
}
[Fact]
public async Task TestSingleLine1()
{
await TestInRegularAndScript1Async(
"""
class Class
{
[|int i|];
int P { get { return i; } }
}
""",
"""
class Class
{
int P { get; }
}
""");
}
[Fact]
public async Task TestSingleLine2()
{
await TestInRegularAndScript1Async(
"""
class Class
{
[|int i|];
int P
{
get { return i; }
}
}
""",
"""
class Class
{
int P { get; }
}
""");
}
[Fact]
public async Task TestSingleLine3()
{
await TestInRegularAndScript1Async(
"""
class Class
{
[|int i|];
int P
{
get { return i; }
set { i = value; }
}
}
""",
"""
class Class
{
int P { get; set; }
}
""");
}
[Fact]
public async Task Tuple_SingleGetterFromField()
{
await TestInRegularAndScript1Async(
"""
class Class
{
[|readonly (int, string) i|];
(int, string) P
{
get
{
return i;
}
}
}
""",
"""
class Class
{
(int, string) P { get; }
}
""");
}
[Fact]
public async Task TupleWithNames_SingleGetterFromField()
{
await TestInRegularAndScript1Async(
"""
class Class
{
[|readonly (int a, string b) i|];
(int a, string b) P
{
get
{
return i;
}
}
}
""",
"""
class Class
{
(int a, string b) P { get; }
}
""");
}
[Fact]
public async Task TupleWithDifferentNames_SingleGetterFromField()
{
await TestMissingInRegularAndScriptAsync(
"""
class Class
{
[|readonly (int a, string b) i|];
(int c, string d) P
{
get
{
return i;
}
}
}
""");
}
[Fact]
public async Task TupleWithOneName_SingleGetterFromField()
{
await TestInRegularAndScript1Async(
"""
class Class
{
[|readonly (int a, string) i|];
(int a, string) P
{
get
{
return i;
}
}
}
""",
"""
class Class
{
(int a, string) P { get; }
}
""");
}
[Fact]
public async Task Tuple_Initializer()
{
await TestInRegularAndScript1Async(
"""
class Class
{
[|readonly (int, string) i = (1, "hello")|];
(int, string) P
{
get
{
return i;
}
}
}
""",
"""
class Class
{
(int, string) P { get; } = (1, "hello");
}
""");
}
[Fact]
public async Task Tuple_GetterAndSetter()
{
await TestMissingInRegularAndScriptAsync(
"""
class Class
{
[|(int, string) i|];
(int, string) P
{
get
{
return i;
}
set
{
i = value;
}
}
}
""");
}
[Fact, WorkItem("https://github.com/dotnet/roslyn/issues/23216")]
[WorkItem("https://github.com/dotnet/roslyn/issues/23215")]
public async Task TestFixAllInDocument()
{
await TestInRegularAndScript1Async(
"""
class Class
{
{|FixAllInDocument:int i|};
int P
{
get
{
return i;
}
}
int j;
int Q
{
get
{
return j;
}
}
}
""",
"""
class Class
{
int P { get; }
int Q { get; }
}
""");
}
[Fact, WorkItem("https://github.com/dotnet/roslyn/issues/23735")]
public async Task ExplicitInterfaceImplementationGetterOnly()
{
await TestMissingInRegularAndScriptAsync("""
namespace RoslynSandbox
{
public interface IFoo
{
object Bar { get; }
}
class Foo : IFoo
{
public Foo(object bar)
{
this.bar = bar;
}
readonly object [|bar|];
object IFoo.Bar
{
get { return bar; }
}
}
}
""");
}
[Fact, WorkItem("https://github.com/dotnet/roslyn/issues/23735")]
public async Task ExplicitInterfaceImplementationGetterAndSetter()
{
await TestMissingInRegularAndScriptAsync("""
namespace RoslynSandbox
{
public interface IFoo
{
object Bar { get; set; }
}
class Foo : IFoo
{
public Foo(object bar)
{
this.bar = bar;
}
object [|bar|];
object IFoo.Bar
{
get { return bar; }
set { bar = value; }
}
}
}
""");
}
[Fact]
public async Task ExpressionBodiedMemberGetOnly()
{
await TestInRegularAndScript1Async(
"""
class Class
{
int [|i|];
int P
{
get => i;
}
}
""",
"""
class Class
{
int P { get; }
}
""");
}
[Fact]
public async Task ExpressionBodiedMemberGetOnlyWithInitializer()
{
await TestInRegularAndScript1Async(
"""
class Class
{
int [|i|] = 1;
int P
{
get => i;
}
}
""",
"""
class Class
{
int P { get; } = 1;
}
""");
}
[Fact]
public async Task ExpressionBodiedMemberGetOnlyWithInitializerAndNeedsSetter()
{
await TestInRegularAndScript1Async(
"""
class Class
{
int [|i|] = 1;
int P
{
get => i;
}
void M() { i = 2; }
}
""",
"""
class Class
{
int P { get; set; } = 1;
void M() { P = 2; }
}
""");
}
[Fact]
public async Task ExpressionBodiedMemberGetterAndSetter()
{
await TestInRegularAndScript1Async(
"""
class Class
{
int [|i|];
int P
{
get => i;
set { i = value; }
}
}
""",
"""
class Class
{
int P { get; set; }
}
""");
}
[Fact]
public async Task ExpressionBodiedMemberGetter()
{
await TestInRegularAndScript1Async(
"""
class Class
{
int [|i|];
int P => i;
}
""",
"""
class Class
{
int P { get; }
}
""");
}
[Fact]
public async Task ExpressionBodiedMemberGetterWithSetterNeeded()
{
await TestInRegularAndScript1Async(
"""
class Class
{
int [|i|];
int P => i;
void M() { i = 1; }
}
""",
"""
class Class
{
int P { get; set; }
void M() { P = 1; }
}
""");
}
[Fact]
public async Task ExpressionBodiedMemberGetterWithInitializer()
{
await TestInRegularAndScript1Async(
"""
class Class
{
int [|i|] = 1;
int P => i;
}
""",
"""
class Class
{
int P { get; } = 1;
}
""");
}
[Fact]
public async Task ExpressionBodiedGetterAndSetter()
{
await TestInRegularAndScript1Async(
"""
class Class
{
int [|i|];
int P {
get => i;
set => i = value;
}
}
""",
"""
class Class
{
int P { get; set; }
}
""");
}
[Fact]
public async Task ExpressionBodiedGetterAndSetterWithInitializer()
{
await TestInRegularAndScript1Async(
"""
class Class
{
int [|i|] = 1;
int P {
get => i;
set => i = value;
}
}
""",
"""
class Class
{
int P { get; set; } = 1;
}
""");
}
[Fact, WorkItem("https://github.com/dotnet/roslyn/issues/25401")]
public async Task TestGetterAccessibilityDiffers()
{
await TestInRegularAndScript1Async(
"""
class Class
{
[|int i|];
public int P
{
protected get
{
return i;
}
set
{
i = value;
}
}
}
""",
"""
class Class
{
public int P { protected get; set; }
}
""");
}
[Fact, WorkItem("https://github.com/dotnet/roslyn/issues/25401")]
public async Task TestSetterAccessibilityDiffers()
{
await TestInRegularAndScript1Async(
"""
class Class
{
[|int i|];
public int P
{
get
{
return i;
}
protected set
{
i = value;
}
}
}
""",
"""
class Class
{
public int P { get; protected set; }
}
""");
}
[Fact, WorkItem("https://github.com/dotnet/roslyn/issues/26858")]
public async Task TestPreserveTrailingTrivia1()
{
await TestInRegularAndScript1Async(
"""
class Goo
{
private readonly object [|bar|] = new object();
public object Bar => bar;
public int Baz => 0;
}
""",
"""
class Goo
{
public object Bar { get; } = new object();
public int Baz => 0;
}
""");
}
[Fact, WorkItem("https://github.com/dotnet/roslyn/issues/26858")]
public async Task TestPreserveTrailingTrivia2()
{
await TestInRegularAndScript1Async(
"""
class Goo
{
private readonly object [|bar|] = new object();
public object Bar => bar; // prop comment
public int Baz => 0;
}
""",
"""
class Goo
{
public object Bar { get; } = new object(); // prop comment
public int Baz => 0;
}
""");
}
[Fact, WorkItem("https://github.com/dotnet/roslyn/issues/26858")]
public async Task TestPreserveTrailingTrivia3()
{
await TestInRegularAndScript1Async(
"""
class Goo
{
private readonly object [|bar|] = new object();
// doc
public object Bar => bar; // prop comment
public int Baz => 0;
}
""",
"""
class Goo
{
// doc
public object Bar { get; } = new object(); // prop comment
public int Baz => 0;
}
""");
}
[Fact, WorkItem("https://github.com/dotnet/roslyn/issues/26858")]
public async Task TestKeepLeadingBlank()
{
await TestInRegularAndScript1Async(
"""
class Goo
{
private readonly object [|bar|] = new object();
// doc
public object Bar => bar; // prop comment
public int Baz => 0;
}
""",
"""
class Goo
{
// doc
public object Bar { get; } = new object(); // prop comment
public int Baz => 0;
}
""");
}
[Fact]
public async Task TestMultipleFieldsAbove1()
{
await TestInRegularAndScript1Async(
"""
class Class
{
[|int i|];
int j;
int P
{
get
{
return i;
}
}
}
""",
"""
class Class
{
int j;
int P { get; }
}
""");
}
[Fact]
public async Task TestMultipleFieldsAbove2()
{
await TestInRegularAndScript1Async(
"""
class Class
{
int j;
[|int i|];
int P
{
get
{
return i;
}
}
}
""",
"""
class Class
{
int j;
int P { get; }
}
""");
}
[Fact]
public async Task TestMultipleFieldsAbove3()
{
await TestInRegularAndScript1Async(
"""
class Class
{
[|int i|];
int j;
int P
{
get
{
return i;
}
}
}
""",
"""
class Class
{
int j;
int P { get; }
}
""");
}
[Fact]
public async Task TestMultipleFieldsAbove4()
{
await TestInRegularAndScript1Async(
"""
class Class
{
int j;
[|int i|];
int P
{
get
{
return i;
}
}
}
""",
"""
class Class
{
int j;
int P { get; }
}
""");
}
[Fact]
public async Task TestMultipleFieldsBelow1()
{
await TestInRegularAndScript1Async(
"""
class Class
{
int P
{
get
{
return i;
}
}
[|int i|];
int j;
}
""",
"""
class Class
{
int P { get; }
int j;
}
""");
}
[Fact]
public async Task TestMultipleFieldsBelow2()
{
await TestInRegularAndScript1Async(
"""
class Class
{
int P
{
get
{
return i;
}
}
int j;
[|int i|];
}
""",
"""
class Class
{
int P { get; }
int j;
}
""");
}
[Fact]
public async Task TestMultipleFieldsBelow3()
{
await TestInRegularAndScript1Async(
"""
class Class
{
int P
{
get
{
return i;
}
}
[|int i|];
int j;
}
""",
"""
class Class
{
int P { get; }
int j;
}
""");
}
[Fact]
public async Task TestMultipleFieldsBelow4()
{
await TestInRegularAndScript1Async(
"""
class Class
{
int P
{
get
{
return i;
}
}
int j;
[|int i|];
}
""",
"""
class Class
{
int P { get; }
int j;
}
""");
}
[Fact, WorkItem("https://github.com/dotnet/roslyn/issues/27675")]
public async Task TestSingleLineWithDirective()
{
await TestInRegularAndScript1Async(
"""
class Class
{
#region Test
[|int i|];
#endregion
int P
{
get
{
return i;
}
}
}
""",
"""
class Class
{
#region Test
#endregion
int P { get; }
}
""");
}
[Fact, WorkItem("https://github.com/dotnet/roslyn/issues/27675")]
public async Task TestMultipleFieldsWithDirective()
{
await TestInRegularAndScript1Async(
"""
class Class
{
#region Test
[|int i|];
int j;
#endregion
int P
{
get
{
return i;
}
}
}
""",
"""
class Class
{
#region Test
int j;
#endregion
int P { get; }
}
""");
}
[Fact, WorkItem("https://github.com/dotnet/roslyn/issues/27675")]
public async Task TestSingleLineWithDoubleDirectives()
{
await TestInRegularAndScript1Async(
"""
class TestClass
{
#region Field
[|int i|];
#endregion
#region Property
int P
{
get { return i; }
}
#endregion
}
""",
"""
class TestClass
{
#region Field
#endregion
#region Property
int P { get; }
#endregion
}
""");
}
[Fact, WorkItem("https://github.com/dotnet/roslyn/issues/40622")]
public async Task TestUseTabs()
{
await TestInRegularAndScript1Async(
"""
public class Foo
{
private readonly object o;
[||]public object O => o;
}
""",
"""
public class Foo
{
public object O { get; }
}
""", new TestParameters(options: Option(FormattingOptions2.UseTabs, true)));
}
[Fact, WorkItem("https://github.com/dotnet/roslyn/issues/40622")]
public async Task TestUseSpaces()
{
await TestInRegularAndScript1Async(
"""
public class Foo
{
private readonly object o;
[||]public object O => o;
}
""",
"""
public class Foo
{
public object O { get; }
}
""", new TestParameters(options: Option(FormattingOptions2.UseTabs, false)));
}
[Fact, WorkItem("https://github.com/dotnet/roslyn/issues/40622")]
public async Task TestUseTabs_Editorconfig()
{
await TestInRegularAndScript1Async(
"""
<Workspace>
<Project Language = "C#" AssemblyName="Assembly1" CommonReferences="true">
<Document FilePath = "z:\\file.cs">
public class Foo
{
private readonly object o;
[||]public object O => o;
}
</Document>
<AnalyzerConfigDocument FilePath = "z:\\.editorconfig">
[*]
indent_style = tab
</AnalyzerConfigDocument>
</Project>
</Workspace>
""",
"""
<Workspace>
<Project Language = "C#" AssemblyName="Assembly1" CommonReferences="true">
<Document FilePath = "z:\\file.cs">
public class Foo
{
public object O { get; }
}
</Document>
<AnalyzerConfigDocument FilePath = "z:\\.editorconfig">
[*]
indent_style = tab
</AnalyzerConfigDocument>
</Project>
</Workspace>
""");
}
[Fact, WorkItem("https://github.com/dotnet/roslyn/issues/40622")]
public async Task TestUseSpaces_Editorconfig()
{
await TestInRegularAndScript1Async(
"""
<Workspace>
<Project Language = "C#" AssemblyName="Assembly1" CommonReferences="true">
<Document FilePath = "z:\\file.cs">
public class Foo
{
private readonly object o;
[||]public object O => o;
}
</Document>
<AnalyzerConfigDocument FilePath = "z:\\.editorconfig">
[*]
indent_style = space
</AnalyzerConfigDocument>
</Project>
</Workspace>
""",
"""
<Workspace>
<Project Language = "C#" AssemblyName="Assembly1" CommonReferences="true">
<Document FilePath = "z:\\file.cs">
public class Foo
{
public object O { get; }
}
</Document>
<AnalyzerConfigDocument FilePath = "z:\\.editorconfig">
[*]
indent_style = space
</AnalyzerConfigDocument>
</Project>
</Workspace>
""");
}
[Fact, WorkItem("https://github.com/dotnet/roslyn/issues/34783")]
public async Task TestNotOnSerializableType()
{
await TestMissingAsync(
"""
[System.Serializable]
class Class
{
[|int i|];
int P
{
get
{
return i;
}
}
}
""");
}
[Fact, WorkItem("https://github.com/dotnet/roslyn/issues/47999")]
public async Task TestPropertyIsReadOnlyAndSetterNeeded()
{
await TestInRegularAndScript1Async(
"""
struct S
{
[|int i|];
public readonly int P => i;
public void SetP(int value) => i = value;
}
""",
"""
struct S
{
public int P { get; private set; }
public void SetP(int value) => P = value;
}
""");
}
[Fact, WorkItem("https://github.com/dotnet/roslyn/issues/47999")]
public async Task TestPropertyIsReadOnlyWithNoAccessModifierAndSetterNeeded()
{
await TestInRegularAndScript1Async(
"""
struct S
{
[|int i|];
readonly int P => i;
public void SetP(int value) => i = value;
}
""",
"""
struct S
{
int P { get; set; }
public void SetP(int value) => P = value;
}
""");
}
[Fact, WorkItem("https://github.com/dotnet/roslyn/issues/47999")]
public async Task TestPropertyIsReadOnlyAndSetterUnneeded()
{
await TestInRegularAndScript1Async(
"""
struct S
{
[|int i|];
public readonly int P => i;
}
""",
"""
struct S
{
public readonly int P { get; }
}
""");
}
[Fact]
public async Task TestPropertyInRecordStruct()
{
await TestInRegularAndScript1Async(
"""
record struct S
{
[|int i|];
public readonly int P => i;
}
""",
"""
record struct S
{
public readonly int P { get; }
}
""");
}
[Fact, WorkItem("https://github.com/dotnet/roslyn/issues/38286")]
public async Task TestPointer1()
{
await TestInRegularAndScriptAsync(
"""
class Class
{
[|int* i|];
int* P => i;
}
""",
"""
class Class
{
int* P { get; }
}
""");
}
[Fact, WorkItem("https://github.com/dotnet/roslyn/issues/38286")]
public async Task TestPointer2()
{
await TestMissingAsync(
"""
class Class
{
[|int* i|];
int* P => i;
void M()
{
fixed (int** ii = &i)
{
}
}
}
""");
}
[Fact, WorkItem("https://github.com/dotnet/roslyn/issues/25408")]
public async Task TestLinkedFile()
{
await TestInRegularAndScript1Async(
"""
<Workspace>
<Project Language='C#' CommonReferences='true' AssemblyName='LinkedProj' Name='CSProj.1'>
<Document FilePath='C.cs'>class C
{
private readonly [|int _value|];
public C(int value)
{
_value = value;
}
public int Value
{
get { return _value; }
}
}</Document>
</Project>
<Project Language='C#' CommonReferences='true' AssemblyName='LinkedProj' Name='CSProj.2'>
<Document IsLinkFile='true' LinkProjectName='CSProj.1' LinkFilePath='C.cs'/>
</Project>
</Workspace>
""",
"""
class C
{
public C(int value)
{
Value = value;
}
public int Value { get; }
}
""");
}
[Fact, WorkItem("https://github.com/dotnet/roslyn/issues/32597")]
public async Task TestUnassignedVariable1()
{
await TestMissingAsync(
"""
public struct UInt128
{
[|private ulong s0;|]
private ulong s1;
public ulong S0 { get { return s0; } }
public ulong S1 { get { return s1; } }
public static void Create(out UInt128 c, uint r0, uint r1, uint r2, uint r3)
{
c.s0 = (ulong)r1 << 32 | r0;
c.s1 = (ulong)r3 << 32 | r2;
}
}
""");
}
[Fact, WorkItem("https://github.com/dotnet/roslyn/issues/32597")]
public async Task TestAssignedVariable1()
{
await TestInRegularAndScript1Async(
"""
public struct UInt128
{
[|private ulong s0;|]
private ulong s1;
public ulong S0 { get { return s0; } }
public ulong S1 { get { return s1; } }
public static void Create(out UInt128 c, uint r0, uint r1, uint r2, uint r3)
{
c = default;
c.s0 = (ulong)r1 << 32 | r0;
c.s1 = (ulong)r3 << 32 | r2;
}
}
""",
"""
public struct UInt128
{
private ulong s1;
public ulong S0 { get; private set; }
public ulong S1 { get { return s1; } }
public static void Create(out UInt128 c, uint r0, uint r1, uint r2, uint r3)
{
c = default;
c.S0 = (ulong)r1 << 32 | r0;
c.s1 = (ulong)r3 << 32 | r2;
}
}
""");
}
[Fact, WorkItem("https://github.com/dotnet/roslyn/issues/71032")]
public async Task TestWithInitProperty1()
{
await TestInRegularAndScriptAsync(
"""
using System;
public class C
{
[|private string _action;|]
public required string Action
{
get => _action;
init => _action = value;
}
}
""",
"""
using System;
public class C
{
public required string Action { get; init; }
}
""");
}
[Fact, WorkItem("https://github.com/dotnet/roslyn/issues/71032")]
public async Task TestNotWithInitProperty1()
{
await TestMissingInRegularAndScriptAsync(
"""
using System;
public class C
{
[|private string _action;|]
public required string Action
{
get => _action;
init => _action = value;
}
private void SetAction(string newAction) => _action = newAction;
}
""");
}
}
|