public void UpdateGuestProjectManager_ProjectChanged_ConfigurationChange()
{
// Arrange
var oldHandle = new ProjectSnapshotHandleProxy(
new Uri("vsls:/path/project.csproj"),
RazorConfiguration.Default,
"project",
projectWorkspaceState: null);
var newConfiguration = RazorConfiguration.Create(RazorLanguageVersion.Version_1_0, "Custom-1.0", Enumerable.Empty <RazorExtension>());
var newHandle = new ProjectSnapshotHandleProxy(
oldHandle.FilePath,
newConfiguration,
oldHandle.RootNamespace,
oldHandle.ProjectWorkspaceState);
var synchronizationService = new ProjectSnapshotSynchronizationService(
JoinableTaskFactory,
SessionContext,
Mock.Of <IProjectSnapshotManagerProxy>(),
ProjectSnapshotManager);
var hostProject = new HostProject("/guest/path/project.csproj", RazorConfiguration.Default, "project");
ProjectSnapshotManager.ProjectAdded(hostProject);
ProjectSnapshotManager.ProjectConfigurationChanged(hostProject);
var args = new ProjectChangeEventProxyArgs(oldHandle, newHandle, ProjectProxyChangeKind.ProjectChanged);
// Act
synchronizationService.UpdateGuestProjectManager(args);
// Assert
var project = Assert.Single(ProjectSnapshotManager.Projects);
Assert.Equal("/guest/path/project.csproj", project.FilePath);
Assert.Same(newConfiguration, project.Configuration);
Assert.Empty(project.TagHelpers);
}