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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.CSharp.Structure;
using Microsoft.CodeAnalysis.CSharp.Syntax;
using Microsoft.CodeAnalysis.Structure;
using Microsoft.CodeAnalysis.Test.Utilities;
using Xunit;
namespace Microsoft.CodeAnalysis.Editor.CSharp.UnitTests.Structure;
[Trait(Traits.Feature, Traits.Features.Outlining)]
public class ParenthesizedLambdaStructureTests : AbstractCSharpSyntaxNodeStructureTests<ParenthesizedLambdaExpressionSyntax>
{
internal override AbstractSyntaxStructureProvider CreateProvider() => new ParenthesizedLambdaExpressionStructureProvider();
[Fact]
public async Task TestLambda()
{
var code = """
class C
{
void M()
{
{|hint:$$() => {|textspan:{
x();
};|}|}
}
}
""";
await VerifyBlockSpansAsync(code,
Region("textspan", "hint", CSharpStructureHelpers.Ellipsis, autoCollapse: false));
}
[Fact]
public async Task TestLambdaInForLoop()
{
var code = """
class C
{
void M()
{
for (Action a = $$() => { }; true; a()) { }
}
}
""";
await VerifyNoBlockSpansAsync(code);
}
[Fact]
public async Task TestLambdaInMethodCall1()
{
var code = """
class C
{
void M()
{
someMethod(42, "test", false, {|hint:$$(x, y, z) => {|textspan:{
return x + y + z;
}|}|}, "other arguments");
}
}
""";
await VerifyBlockSpansAsync(code,
Region("textspan", "hint", CSharpStructureHelpers.Ellipsis, autoCollapse: false));
}
[Fact]
public async Task TestLambdaInMethodCall2()
{
var code = """
class C
{
void M()
{
someMethod(42, "test", false, {|hint:$$(x, y, z) => {|textspan:{
return x + y + z;
}|}|});
}
}
""";
await VerifyBlockSpansAsync(code,
Region("textspan", "hint", CSharpStructureHelpers.Ellipsis, autoCollapse: false));
}
}
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