Unit Testing Workflows

Here comes my first Workflow in Unit Tests. I tend to think that "Dot Net" inevitably turns into "Brace Net"... :-)

[TestClass]
public class BackupTests {
    [TestMethod, ExpectedException(typeof(InvalidWorkflowException))]
    public void IndexArgumentMissingTest() {
        Activity backup = new BackupFilesActivity { Copier = new MockCopier() };
        var sequence = new Sequence { Activities = { backup } };
        WorkflowInvoker.Invoke(sequence);
    }

    [TestMethod, ExpectedException(typeof(MyException))]
    public void CopyFailsTest() {
        var index = new IndexInfo() { ID = 1 };
        Activity backup = new BackupFilesActivity { 
            Copier = new MockCopier(new MyException()),
        };
        var inputs = new Dictionary<string, object>() { { "Index", index } };
        WorkflowInvoker.Invoke(backup, inputs);
    }

    [TestMethod]
    public void MockCopyWorksTest() {
        var index = new IndexInfo() { ID = 1 };
        Activity backup = new BackupFilesActivity {
            Copier = new MockCopier(),
            Index = new InArgument<IndexInfo>((ctx) => index)
        };
        var sequence = new Sequence { Activities = { backup } };
        WorkflowInvoker.Invoke(sequence);
    }
}