public void MainWindowVM_SaveAsDocument_RunsDataStoreSaveAsMethod()
{
FakeMainWindowModel model = new FakeMainWindowModel();
model.SaveAsDocument.Execute(null);
var saveAsDidRun = (model.GetDataStore() as FakeDataStore).SaveAsWasRun;
Assert.IsTrue(saveAsDidRun, "SaveAs method should have been runned");
}
