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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.CodeStyle;
using Microsoft.CodeAnalysis.CSharp.CodeStyle;
using Microsoft.CodeAnalysis.CSharp.NewLines.ConditionalExpressionPlacement;
using Microsoft.CodeAnalysis.Editor.UnitTests.CodeActions;
using Xunit;
namespace Microsoft.CodeAnalysis.Editor.CSharp.UnitTests.NewLines.ConditionalExpressionPlacement;
using Verify = CSharpCodeFixVerifier<
ConditionalExpressionPlacementDiagnosticAnalyzer,
ConditionalExpressionPlacementCodeFixProvider>;
public sealed class ConditionalExpressionPlacementTests
{
[Fact]
public async Task TestNotWithOptionOff()
{
var code =
"""
class C
{
public C()
{
var v = true ?
0 :
1;
}
}
""";
await new Verify.Test
{
TestCode = code,
Options = { { CSharpCodeStyleOptions.AllowBlankLineAfterTokenInConditionalExpression, CodeStyleOption2.TrueWithSilentEnforcement } }
}.RunAsync();
}
[Fact]
public async Task TestBaseCase()
{
var code =
"""
class C
{
public C()
{
var v = true [|?|]
0 :
1;
}
}
""";
var fixedCode =
"""
class C
{
public C()
{
var v = true
? 0
: 1;
}
}
""";
await new Verify.Test
{
TestCode = code,
FixedCode = fixedCode,
Options = { { CSharpCodeStyleOptions.AllowBlankLineAfterTokenInConditionalExpression, CodeStyleOption2.FalseWithSuggestionEnforcement } }
}.RunAsync();
}
[Fact]
public async Task TestNotWithDiagnosticsInCondition()
{
var code =
"""
class C
{
public C()
{
var v = true || {|CS1525:?|}
0:
1;
}
}
""";
await new Verify.Test
{
TestCode = code,
Options = { { CSharpCodeStyleOptions.AllowBlankLineAfterTokenInConditionalExpression, CodeStyleOption2.TrueWithSilentEnforcement } }
}.RunAsync();
}
[Fact]
public async Task TestNotWithDiagnosticsInTrue()
{
var code =
"""
class C
{
public C()
{
var v = true ?
0 + {|CS1525::|}
1;
}
}
""";
await new Verify.Test
{
TestCode = code,
Options = { { CSharpCodeStyleOptions.AllowBlankLineAfterTokenInConditionalExpression, CodeStyleOption2.TrueWithSilentEnforcement } }
}.RunAsync();
}
[Fact]
public async Task TestNotWithDiagnosticsInFalse()
{
var code =
"""
class C
{
public C()
{
var v = true ?
0 :
1 +{|CS1525:;|}
}
}
""";
await new Verify.Test
{
TestCode = code,
Options = { { CSharpCodeStyleOptions.AllowBlankLineAfterTokenInConditionalExpression, CodeStyleOption2.TrueWithSilentEnforcement } }
}.RunAsync();
}
[Fact]
public async Task TestNotWithMissingColon()
{
var code =
"""
class C
{
public C()
{
var v = true ?
0{|CS1003:{|CS1525:;|}|}
}
}
""";
await new Verify.Test
{
TestCode = code,
Options = { { CSharpCodeStyleOptions.AllowBlankLineAfterTokenInConditionalExpression, CodeStyleOption2.TrueWithSilentEnforcement } }
}.RunAsync();
}
[Fact]
public async Task TestNotWithQuestionNotAtEndOfLine()
{
var code =
"""
class C
{
public C()
{
var v = true ? 1 :
1;
}
}
""";
await new Verify.Test
{
TestCode = code,
Options = { { CSharpCodeStyleOptions.AllowBlankLineAfterTokenInConditionalExpression, CodeStyleOption2.TrueWithSilentEnforcement } }
}.RunAsync();
}
[Fact]
public async Task TestNotWithColonNotAtEndOfLine()
{
var code =
"""
class C
{
public C()
{
var v = true ?
1 : 1;
}
}
""";
await new Verify.Test
{
TestCode = code,
Options = { { CSharpCodeStyleOptions.AllowBlankLineAfterTokenInConditionalExpression, CodeStyleOption2.TrueWithSilentEnforcement } }
}.RunAsync();
}
[Fact]
public async Task TestNotWithFirstExprWithPPTrivia1()
{
var code =
"""
class C
{
public C()
{
var v = true ?
#if true
1 :
1;
#endif
}
}
""";
await new Verify.Test
{
TestCode = code,
Options = { { CSharpCodeStyleOptions.AllowBlankLineAfterTokenInConditionalExpression, CodeStyleOption2.TrueWithSilentEnforcement } }
}.RunAsync();
}
[Fact]
public async Task TestNotWithFirstExprWithPPTrivia2()
{
var code =
"""
class C
{
public C()
{
var v = true ?
1 :
#if true
1;
#endif
}
}
""";
await new Verify.Test
{
TestCode = code,
Options = { { CSharpCodeStyleOptions.AllowBlankLineAfterTokenInConditionalExpression, CodeStyleOption2.TrueWithSilentEnforcement } }
}.RunAsync();
}
[Fact]
public async Task TestNotWithFirstExprWithPPTrivia3()
{
var code =
"""
class C
{
public C()
{
#if true
var v = true ?
#endif
1 :
1;
}
}
""";
await new Verify.Test
{
TestCode = code,
Options = { { CSharpCodeStyleOptions.AllowBlankLineAfterTokenInConditionalExpression, CodeStyleOption2.TrueWithSilentEnforcement } }
}.RunAsync();
}
[Fact]
public async Task TestNotWithFirstExprWithPPTrivia4()
{
var code =
"""
class C
{
public C()
{
#if true
var v = true ?
1 :
#endif
1;
}
}
""";
await new Verify.Test
{
TestCode = code,
Options = { { CSharpCodeStyleOptions.AllowBlankLineAfterTokenInConditionalExpression, CodeStyleOption2.TrueWithSilentEnforcement } }
}.RunAsync();
}
[Fact]
public async Task TestNotWithFirstExprWithPPTrivia5()
{
var code =
"""
class C
{
public C()
{
var v = true ?
1 :
#if true
1;
#endif
}
}
""";
await new Verify.Test
{
TestCode = code,
Options = { { CSharpCodeStyleOptions.AllowBlankLineAfterTokenInConditionalExpression, CodeStyleOption2.TrueWithSilentEnforcement } }
}.RunAsync();
}
[Fact]
public async Task TestWithRegion1()
{
var code =
"""
class C
{
public C()
{
var v = true [|?|]
#region true section
0 :
#endregion
1;
}
}
""";
var fixedCode =
"""
class C
{
public C()
{
var v = true
#region true section
? 0
#endregion
: 1;
}
}
""";
await new Verify.Test
{
TestCode = code,
FixedCode = fixedCode,
Options = { { CSharpCodeStyleOptions.AllowBlankLineAfterTokenInConditionalExpression, CodeStyleOption2.FalseWithSuggestionEnforcement } }
}.RunAsync();
}
[Fact]
public async Task TestWithRegion2()
{
var code =
"""
class C
{
public C()
{
var v = true [|?|]
0 :
#region true section
1;
#endregion
}
}
""";
var fixedCode =
"""
class C
{
public C()
{
var v = true
? 0
#region true section
: 1;
#endregion
}
}
""";
await new Verify.Test
{
TestCode = code,
FixedCode = fixedCode,
Options = { { CSharpCodeStyleOptions.AllowBlankLineAfterTokenInConditionalExpression, CodeStyleOption2.FalseWithSuggestionEnforcement } }
}.RunAsync();
}
[Fact]
public async Task TestWithNullableDirective1()
{
var code =
"""
class C
{
public C()
{
var v = true [|?|]
#nullable enable
0 :
1;
}
}
""";
var fixedCode =
"""
class C
{
public C()
{
var v = true
#nullable enable
? 0
: 1;
}
}
""";
await new Verify.Test
{
TestCode = code,
FixedCode = fixedCode,
Options = { { CSharpCodeStyleOptions.AllowBlankLineAfterTokenInConditionalExpression, CodeStyleOption2.FalseWithSuggestionEnforcement } }
}.RunAsync();
}
[Fact]
public async Task TestWithNullableDirective2()
{
var code =
"""
class C
{
public C()
{
var v = true [|?|]
0 :
#nullable enable
1;
}
}
""";
var fixedCode =
"""
class C
{
public C()
{
var v = true
? 0
#nullable enable
: 1;
}
}
""";
await new Verify.Test
{
TestCode = code,
FixedCode = fixedCode,
Options = { { CSharpCodeStyleOptions.AllowBlankLineAfterTokenInConditionalExpression, CodeStyleOption2.FalseWithSuggestionEnforcement } }
}.RunAsync();
}
[Fact]
public async Task TestNested1()
{
var code =
"""
class C
{
public C()
{
var v = true [|?|]
true [|?|]
0 :
1 :
2;
}
}
""";
var fixedCode =
"""
class C
{
public C()
{
var v = true
? true
? 0
: 1
: 2;
}
}
""";
await new Verify.Test
{
TestCode = code,
FixedCode = fixedCode,
Options = { { CSharpCodeStyleOptions.AllowBlankLineAfterTokenInConditionalExpression, CodeStyleOption2.FalseWithSuggestionEnforcement } }
}.RunAsync();
}
[Fact]
public async Task TestNested2()
{
var code =
"""
class C
{
public C()
{
var v = true [|?|]
true ?
0 : 1 :
2;
}
}
""";
var fixedCode =
"""
class C
{
public C()
{
var v = true
? true ?
0 : 1
: 2;
}
}
""";
await new Verify.Test
{
TestCode = code,
FixedCode = fixedCode,
Options = { { CSharpCodeStyleOptions.AllowBlankLineAfterTokenInConditionalExpression, CodeStyleOption2.FalseWithSuggestionEnforcement } }
}.RunAsync();
}
[Fact]
public async Task TestNested3()
{
var code =
"""
class C
{
public C()
{
var v = true ?
true [|?|]
0 :
1 : 2;
}
}
""";
var fixedCode =
"""
class C
{
public C()
{
var v = true ?
true
? 0
: 1 : 2;
}
}
""";
await new Verify.Test
{
TestCode = code,
FixedCode = fixedCode,
Options = { { CSharpCodeStyleOptions.AllowBlankLineAfterTokenInConditionalExpression, CodeStyleOption2.FalseWithSuggestionEnforcement } }
}.RunAsync();
}
[Fact]
public async Task TestTrivia1()
{
var code =
"""
class C
{
public C()
{
var v = true [|?|]
0 :
1;
}
}
""";
var fixedCode =
"""
class C
{
public C()
{
var v = true
? 0
: 1;
}
}
""";
await new Verify.Test
{
TestCode = code,
FixedCode = fixedCode,
Options = { { CSharpCodeStyleOptions.AllowBlankLineAfterTokenInConditionalExpression, CodeStyleOption2.FalseWithSuggestionEnforcement } }
}.RunAsync();
}
[Fact]
public async Task TestTrivia2()
{
var code =
"""
class C
{
public C()
{
var v = true [|?|] // comment
0 :
1;
}
}
""";
var fixedCode =
"""
class C
{
public C()
{
var v = true // comment
? 0
: 1;
}
}
""";
await new Verify.Test
{
TestCode = code,
FixedCode = fixedCode,
Options = { { CSharpCodeStyleOptions.AllowBlankLineAfterTokenInConditionalExpression, CodeStyleOption2.FalseWithSuggestionEnforcement } }
}.RunAsync();
}
[Fact]
public async Task TestTrivia3()
{
var code =
"""
class C
{
public C()
{
var v = true /*comment*/ [|?|]
0 :
1;
}
}
""";
var fixedCode =
"""
class C
{
public C()
{
var v = true /*comment*/
? 0
: 1;
}
}
""";
await new Verify.Test
{
TestCode = code,
FixedCode = fixedCode,
Options = { { CSharpCodeStyleOptions.AllowBlankLineAfterTokenInConditionalExpression, CodeStyleOption2.FalseWithSuggestionEnforcement } }
}.RunAsync();
}
[Fact]
public async Task TestTrivia4()
{
var code =
"""
class C
{
public C()
{
var v = true /*comment*/ [|?|]
0 :
1;
}
}
""";
var fixedCode =
"""
class C
{
public C()
{
var v = true /*comment*/
? 0
: 1;
}
}
""";
await new Verify.Test
{
TestCode = code,
FixedCode = fixedCode,
Options = { { CSharpCodeStyleOptions.AllowBlankLineAfterTokenInConditionalExpression, CodeStyleOption2.FalseWithSuggestionEnforcement } }
}.RunAsync();
}
[Fact]
public async Task TestTrivia5()
{
var code =
"""
class C
{
public C()
{
var v = true /*comment1*/ [|?|] /*comment2*/
0 :
1;
}
}
""";
var fixedCode =
"""
class C
{
public C()
{
var v = true /*comment1*/ /*comment2*/
? 0
: 1;
}
}
""";
await new Verify.Test
{
TestCode = code,
FixedCode = fixedCode,
Options = { { CSharpCodeStyleOptions.AllowBlankLineAfterTokenInConditionalExpression, CodeStyleOption2.FalseWithSuggestionEnforcement } }
}.RunAsync();
}
[Fact]
public async Task TestWithDiagnosticsElsewhere()
{
var code =
"""
class C
{
public C(int{|CS1001:)|}
{
var v = true [|?|]
0 :
1;
}
}
""";
var fixedCode =
"""
class C
{
public C(int{|CS1001:)|}
{
var v = true
? 0
: 1;
}
}
""";
await new Verify.Test
{
TestCode = code,
FixedCode = fixedCode,
Options = { { CSharpCodeStyleOptions.AllowBlankLineAfterTokenInConditionalExpression, CodeStyleOption2.FalseWithSuggestionEnforcement } }
}.RunAsync();
}
}
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