forked from OmniSharp/omnisharp-roslyn
/
FindReferencesFacts.cs
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/
FindReferencesFacts.cs
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using System.Linq;
using System.Threading.Tasks;
using OmniSharp.Models;
using OmniSharp.Models.FindUsages;
using OmniSharp.Roslyn.CSharp.Services.Navigation;
using TestUtility;
using Xunit;
using Xunit.Abstractions;
namespace OmniSharp.Roslyn.CSharp.Tests
{
public class FindReferencesFacts : AbstractSingleRequestHandlerTestFixture<FindUsagesService>
{
public FindReferencesFacts(ITestOutputHelper output, SharedOmniSharpHostFixture sharedOmniSharpHostFixture)
: base(output, sharedOmniSharpHostFixture)
{
}
protected override string EndpointName => OmniSharpEndpoints.FindUsages;
[Fact]
public async Task CanFindReferencesOfLocalVariable()
{
const string code = @"
public class Foo
{
public Foo(string s)
{
var pr$$op = s + 'abc';
prop += 'woo';
}
}";
var usages = await FindUsagesAsync(code);
Assert.Equal(2, usages.QuickFixes.Count());
}
[Fact]
public async Task CanFindReferencesOfMethodParameter()
{
const string code = @"
public class Foo
{
public Foo(string $$s)
{
var prop = s + 'abc';
}
}";
var usages = await FindUsagesAsync(code);
Assert.Equal(2, usages.QuickFixes.Count());
}
[Fact]
public async Task CanFindReferencesOfField()
{
const string code = @"
public class Foo
{
public string p$$rop;
}
public class FooConsumer
{
public FooConsumer()
{
var foo = new Foo();
var prop = foo.prop;
}
}";
var usages = await FindUsagesAsync(code);
Assert.Equal(2, usages.QuickFixes.Count());
}
[Fact]
public async Task CanFindReferencesOfConstructor()
{
const string code = @"
public class Foo
{
public F$$oo() {}
}
public class FooConsumer
{
public FooConsumer()
{
var temp = new Foo();
}
}";
var usages = await FindUsagesAsync(code);
Assert.Equal(2, usages.QuickFixes.Count());
}
[Fact]
public async Task CanFindReferencesOfMethod()
{
const string code = @"
public class Foo
{
public void b$$ar() { }
}
public class FooConsumer
{
public FooConsumer()
{
new Foo().bar();
}
}";
var usages = await FindUsagesAsync(code);
Assert.Equal(2, usages.QuickFixes.Count());
}
[Fact]
public async Task CanFindReferencesWithLineMapping()
{
const string code = @"
public class Foo
{
public void b$$ar() { }
}
public class FooConsumer
{
public FooConsumer()
{
#line 1
new Foo().bar();
#line default
}
}";
var usages = await FindUsagesAsync(code);
Assert.Equal(2, usages.QuickFixes.Count());
var mappedResult = usages.QuickFixes.FirstOrDefault(x => x.Line == 0);
var regularResult = usages.QuickFixes.FirstOrDefault(x => x.Line == 3);
Assert.NotNull(mappedResult);
Assert.NotNull(regularResult);
// regular result has regular postition
Assert.Equal(32, regularResult.Column);
Assert.Equal(35, regularResult.EndColumn);
}
[Fact]
public async Task CanFindReferencesWithLineMappingAcrossFiles()
{
var testFiles = new[]
{
new TestFile("a.cs", @"
public class Foo
{
public void b$$ar() { }
}
public class FooConsumer
{
public FooConsumer()
{
#line 1 ""b.cs""
new Foo().bar();
#line default
}
}"),
new TestFile("b.cs",
@"// hello")
};
var usages = await FindUsagesAsync(testFiles, onlyThisFile: false);
Assert.Equal(2, usages.QuickFixes.Count());
var mappedResult = usages.QuickFixes.FirstOrDefault(x => x.Line == 0 && x.FileName == "b.cs");
var regularResult = usages.QuickFixes.FirstOrDefault(x => x.Line == 3 && x.FileName == "a.cs");
Assert.NotNull(mappedResult);
Assert.NotNull(regularResult);
// regular result has regular postition
Assert.Equal(32, regularResult.Column);
Assert.Equal(35, regularResult.EndColumn);
// mapped result has column 0,0
Assert.Equal(0, mappedResult.Column);
Assert.Equal(0, mappedResult.EndColumn);
}
[Fact]
public async Task ExcludesMethodDefinition()
{
const string code = @"
public class Foo
{
public void b$$ar() { }
}
public class FooConsumer
{
public FooConsumer()
{
new Foo().bar();
}
}";
var usages = await FindUsagesAsync(code, excludeDefinition: true);
Assert.Single(usages.QuickFixes);
}
[Fact]
public async Task CanFindReferencesOfPublicAutoProperty()
{
const string code = @"
public class Foo
{
public string p$$rop {get;set;}
}
public class FooConsumer
{
public FooConsumer()
{
var foo = new Foo();
var prop = foo.prop;
}
}";
var usages = await FindUsagesAsync(code);
Assert.Equal(2, usages.QuickFixes.Count());
}
[Fact]
public async Task CanFindReferencesOfPublicIndexerProperty()
{
const string code = @"
public class Foo
{
int prop;
public int th$$is[int index]
{
get { return prop; }
set { prop = value; }
}
}
public class FooConsumer
{
public FooConsumer()
{
var foo = new Foo();
var prop = foo[0];
foo[0] = prop;
}
}";
var usages = await FindUsagesAsync(code);
Assert.Equal(3, usages.QuickFixes.Count());
}
[Fact]
public async Task CanFindReferencesOfClass()
{
const string code = @"
public class F$$oo
{
public string prop {get;set;}
}
public class FooConsumer
{
public FooConsumer()
{
var temp = new Foo();
var prop = foo.prop;
}
}";
var usages = await FindUsagesAsync(code);
Assert.Equal(2, usages.QuickFixes.Count());
}
[Fact]
public async Task CanFindReferencesOfOperatorOverloads()
{
const string code = @"
public struct Vector2
{
public float x;
public float y;
public static Vector2 operator $$+(Vector2 lhs, Vector2 rhs) => new Vector2()
{
x = lhs.x + rhs.x,
y = lhs.y + rhs.y,
};
}
public class Vector2Consumer
{
public Vector2Consumer()
{
var a = new Vector2();
var b = new Vector2();
var c = a + b;
}
}";
var usages = await FindUsagesAsync(code);
Assert.Equal(2, usages.QuickFixes.Count());
}
[Fact]
public async Task LimitReferenceSearchToThisFile()
{
var testFiles = new[]
{
new TestFile("a.cs", @"
public class F$$oo {
public Foo Clone() {
return null;
}
}"),
new TestFile("b.cs",
@"public class Bar : Foo { }")
};
var usages = await FindUsagesAsync(testFiles, onlyThisFile: false);
Assert.Equal(3, usages.QuickFixes.Count());
Assert.Equal("a.cs", usages.QuickFixes.ElementAt(0).FileName);
Assert.Equal("a.cs", usages.QuickFixes.ElementAt(1).FileName);
Assert.Equal("b.cs", usages.QuickFixes.ElementAt(2).FileName);
usages = await FindUsagesAsync(testFiles, onlyThisFile: true);
Assert.Equal(2, usages.QuickFixes.Count());
Assert.Equal("a.cs", usages.QuickFixes.ElementAt(0).FileName);
Assert.Equal("a.cs", usages.QuickFixes.ElementAt(1).FileName);
}
[Fact]
public async Task DontFindDefinitionInAnotherFile()
{
var testFiles = new[]
{
new TestFile("a.cs",
@"public class Bar : F$$oo {}"),
new TestFile("b.cs", @"
public class Foo {
public Foo Clone() {
return null;
}
}")
};
var usages = await FindUsagesAsync(testFiles, onlyThisFile: true);
Assert.Single(usages.QuickFixes);
Assert.Equal("a.cs", usages.QuickFixes.ElementAt(0).FileName);
}
private Task<QuickFixResponse> FindUsagesAsync(string code, bool excludeDefinition = false)
{
return FindUsagesAsync(new[] { new TestFile("dummy.cs", code) }, false, excludeDefinition);
}
private async Task<QuickFixResponse> FindUsagesAsync(TestFile[] testFiles, bool onlyThisFile, bool excludeDefinition = false)
{
SharedOmniSharpTestHost.AddFilesToWorkspace(testFiles);
var file = testFiles.Single(tf => tf.Content.HasPosition);
var point = file.Content.GetPointFromPosition();
var requestHandler = GetRequestHandler(SharedOmniSharpTestHost);
var request = new FindUsagesRequest
{
Line = point.Line,
Column = point.Offset,
FileName = file.FileName,
Buffer = file.Content.Code,
OnlyThisFile = onlyThisFile,
ExcludeDefinition = excludeDefinition
};
return await requestHandler.Handle(request);
}
}
}