public void ExpansionControllerTest()
{
var textBuffer = new TextBufferMock("if", RContentTypeDefinition.ContentType);
var textView = new TextViewMock(textBuffer);
var o = new object();
var controller = new ExpansionsController(textView, textBuffer, _expansionManager, _cache);
controller.Status(VSConstants.VSStd2K, (int)VSConstants.VSStd2KCmdID.INSERTSNIPPET).Should().Be(CommandStatus.SupportedAndEnabled);
controller.Status(VSConstants.VSStd2K, (int)VSConstants.VSStd2KCmdID.SURROUNDWITH).Should().Be(CommandStatus.SupportedAndEnabled);
controller.Invoke(VSConstants.VSStd2K, (int)VSConstants.VSStd2KCmdID.RETURN, null, ref o).Should().Be(CommandResult.NotSupported);
controller.Invoke(VSConstants.VSStd2K, (int)VSConstants.VSStd2KCmdID.BACKTAB, null, ref o).Should().Be(CommandResult.NotSupported);
controller.Invoke(VSConstants.VSStd2K, (int)VSConstants.VSStd2KCmdID.CANCEL, null, ref o).Should().Be(CommandResult.NotSupported);
textView.Caret.MoveTo(new SnapshotPoint(textView.TextBuffer.CurrentSnapshot, 2));
bool inserted;
var client = controller.ExpansionClient as ExpansionClient;
client.StartSnippetInsertion(out inserted);
controller.Status(VSConstants.VSStd2K, (int)VSConstants.VSStd2KCmdID.INSERTSNIPPET).Should().Be(CommandStatus.SupportedAndEnabled);
controller.Status(VSConstants.VSStd2K, (int)VSConstants.VSStd2KCmdID.SURROUNDWITH).Should().Be(CommandStatus.SupportedAndEnabled);
client.Session.Should().NotBeNull();
var session = client.Session;
var mock = session as VsExpansionSessionMock;
controller.Invoke(VSConstants.VSStd2K, (int)VSConstants.VSStd2KCmdID.TAB, null, ref o).Should().Be(CommandResult.Executed);
mock.ExpansionFieldIndex.Should().Be(1);
controller.Invoke(VSConstants.VSStd2K, (int)VSConstants.VSStd2KCmdID.BACKTAB, null, ref o).Should().Be(CommandResult.Executed);
mock.ExpansionFieldIndex.Should().Be(0);
client.EndExpansion();
}