private static void TestNavigator(
string code,
Func<ITextStructureNavigator, SnapshotSpan, SnapshotSpan> func,
int startPosition,
int startLength,
int endPosition,
int endLength,
CSharpParseOptions options)
{
using (var workspace = CSharpWorkspaceFactory.CreateWorkspaceFromFile(code, options))
{
var buffer = workspace.Documents.First().GetTextBuffer();
var provider = new TextStructureNavigatorProvider(
workspace.GetService<ITextStructureNavigatorSelectorService>(),
workspace.GetService<IContentTypeRegistryService>(),
workspace.GetService<IWaitIndicator>());
var navigator = provider.CreateTextStructureNavigator(buffer);
var actualSpan = func(navigator, new SnapshotSpan(buffer.CurrentSnapshot, startPosition, startLength));
var expectedSpan = new SnapshotSpan(buffer.CurrentSnapshot, endPosition, endLength);
Assert.Equal(expectedSpan, actualSpan.Span);
}
}
private static void AssertExtent(string code, int pos, bool isSignificant, int start, int length, CSharpParseOptions options)
{
using (var workspace = CSharpWorkspaceFactory.CreateWorkspaceFromFile(code, options))
{
var buffer = workspace.Documents.First().GetTextBuffer();
var provider = new TextStructureNavigatorProvider(
workspace.GetService<ITextStructureNavigatorSelectorService>(),
workspace.GetService<IContentTypeRegistryService>(),
workspace.GetService<IWaitIndicator>());
var navigator = provider.CreateTextStructureNavigator(buffer);
var extent = navigator.GetExtentOfWord(new SnapshotPoint(buffer.CurrentSnapshot, pos));
Assert.Equal(isSignificant, extent.IsSignificant);
var expectedSpan = new SnapshotSpan(buffer.CurrentSnapshot, start, length);
Assert.Equal(expectedSpan, extent.Span);
}
}