public async Task TryGetMappedSpans_SpanMatchesSourceMappingAndPosition_ReturnsTrue()
{
// Arrange
var sourceText = SourceText.From(@"
@SomeProperty
@SomeProperty
@SomeProperty
");
var project = new DefaultProjectSnapshot(
ProjectState.Create(Workspace.Services, HostProject)
.WithAddedHostDocument(HostDocument, () => Task.FromResult(TextAndVersion.Create(sourceText, VersionStamp.Create()))));
var document = project.GetDocument(HostDocument.FilePath);
var service = new RazorSpanMappingService(document);
var output = await document.GetGeneratedOutputAsync();
var generated = output.GetCSharpDocument();
var symbol = "SomeProperty";
// Second occurrence
var span = new TextSpan(generated.GeneratedCode.IndexOf(symbol, generated.GeneratedCode.IndexOf(symbol, StringComparison.Ordinal) + symbol.Length, StringComparison.Ordinal), symbol.Length);
// Act
var result = RazorSpanMappingService.TryGetMappedSpans(span, await document.GetTextAsync(), generated, out var mappedLinePositionSpan, out var mappedSpan);
// Assert
Assert.True(result);
Assert.Equal(new LinePositionSpan(new LinePosition(2, 1), new LinePosition(2, 13)), mappedLinePositionSpan);
Assert.Equal(new TextSpan(Environment.NewLine.Length + 1 + symbol.Length + Environment.NewLine.Length + 1, symbol.Length), mappedSpan);
}
public async Task TryGetMappedSpans_SpanOutsideSourceMapping_ReturnsFalse()
{
// Arrange
var sourceText = SourceText.From(@"
@{
var x = SomeClass.SomeProperty;
}
");
var project = new DefaultProjectSnapshot(
ProjectState.Create(Workspace.Services, HostProject)
.WithAddedHostDocument(HostDocument, () => Task.FromResult(TextAndVersion.Create(sourceText, VersionStamp.Create()))));
var document = project.GetDocument(HostDocument.FilePath);
var service = new RazorSpanMappingService(document);
var output = await document.GetGeneratedOutputAsync();
var generated = output.GetCSharpDocument();
var symbol = "ExecuteAsync";
var span = new TextSpan(generated.GeneratedCode.IndexOf(symbol, StringComparison.Ordinal), symbol.Length);
// Act
var result = RazorSpanMappingService.TryGetMappedSpans(span, await document.GetTextAsync(), generated, out var mappedLinePositionSpan, out var mappedSpan);
// Assert
Assert.False(result);
}
