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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.
#nullable disable
using System.Collections.Immutable;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using Roslyn.Test.Utilities;
using Xunit;
using Xunit.Abstractions;
using LSP = Roslyn.LanguageServer.Protocol;
namespace Microsoft.CodeAnalysis.LanguageServer.UnitTests.References
{
public class FindImplementationsTests : AbstractLanguageServerProtocolTests
{
public FindImplementationsTests(ITestOutputHelper testOutputHelper) : base(testOutputHelper)
{
}
[Theory, CombinatorialData]
public async Task TestFindImplementationAsync(bool mutatingLspWorkspace)
{
var markup =
@"interface IA
{
void {|caret:|}M();
}
class A : IA
{
void IA.{|implementation:M|}()
{
}
}";
await using var testLspServer = await CreateTestLspServerAsync(markup, mutatingLspWorkspace);
var results = await RunFindImplementationAsync(testLspServer, testLspServer.GetLocations("caret").Single());
AssertLocationsEqual(testLspServer.GetLocations("implementation"), results);
}
[Theory, CombinatorialData]
public async Task TestFindImplementationAsync_DifferentDocument(bool mutatingLspWorkspace)
{
var markups = new string[]
{
@"namespace One
{
interface IA
{
void {|caret:|}M();
}
}",
@"namespace One
{
class A : IA
{
void IA.{|implementation:M|}()
{
}
}
}"
};
await using var testLspServer = await CreateTestLspServerAsync(markups, mutatingLspWorkspace);
var results = await RunFindImplementationAsync(testLspServer, testLspServer.GetLocations("caret").Single());
AssertLocationsEqual(testLspServer.GetLocations("implementation"), results);
}
[Theory, CombinatorialData]
public async Task TestFindImplementationAsync_MappedFile(bool mutatingLspWorkspace)
{
var markup =
@"interface IA
{
void M();
}
class A : IA
{
void IA.M()
{
}
}";
await using var testLspServer = await CreateTestLspServerAsync(string.Empty, mutatingLspWorkspace);
AddMappedDocument(testLspServer.TestWorkspace, markup);
var position = new LSP.Position { Line = 2, Character = 9 };
var results = await RunFindImplementationAsync(testLspServer, new LSP.Location
{
Uri = ProtocolConversions.CreateAbsoluteUri($"C:\\{TestSpanMapper.GeneratedFileName}"),
Range = new LSP.Range { Start = position, End = position }
});
AssertLocationsEqual(ImmutableArray.Create(TestSpanMapper.MappedFileLocation), results);
}
[Theory, CombinatorialData]
public async Task TestFindImplementationAsync_InvalidLocation(bool mutatingLspWorkspace)
{
var markup =
@"class A
{
void M()
{
{|caret:|}
}
}";
await using var testLspServer = await CreateTestLspServerAsync(markup, mutatingLspWorkspace);
var results = await RunFindImplementationAsync(testLspServer, testLspServer.GetLocations("caret").Single());
Assert.Empty(results);
}
[Theory, CombinatorialData, WorkItem("https://github.com/dotnet/roslyn/issues/44846")]
public async Task TestFindImplementationAsync_MultipleLocations(bool mutatingLspWorkspace)
{
var markup =
@"class {|caret:|}{|implementation:A|} { }
class {|implementation:B|} : A { }
class {|implementation:C|} : A { }";
await using var testLspServer = await CreateTestLspServerAsync(markup, mutatingLspWorkspace);
var results = await RunFindImplementationAsync(testLspServer, testLspServer.GetLocations("caret").Single());
AssertLocationsEqual(testLspServer.GetLocations("implementation"), results);
}
[Theory, CombinatorialData]
public async Task TestFindImplementationAsync_NoMetadataResults(bool mutatingLspWorkspace)
{
var markup = @"
using System;
class C : IDisposable
{
public void {|implementation:Dispose|}()
{
IDisposable d;
d.{|caret:|}Dispose();
}
}";
await using var testLspServer = await CreateTestLspServerAsync(markup, mutatingLspWorkspace);
var results = await RunFindImplementationAsync(testLspServer, testLspServer.GetLocations("caret").Single());
// At the moment we only support source results here, so verify we haven't accidentally
// broken that without work to make sure they display nicely
AssertLocationsEqual(testLspServer.GetLocations("implementation"), results);
}
private static async Task<LSP.Location[]> RunFindImplementationAsync(TestLspServer testLspServer, LSP.Location caret)
{
return await testLspServer.ExecuteRequestAsync<LSP.TextDocumentPositionParams, LSP.Location[]>(LSP.Methods.TextDocumentImplementationName,
CreateTextDocumentPositionParams(caret), CancellationToken.None);
}
}
}
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