public void Pipeline_Process_SequenceOfTwo()
{
// Arrange
var element1 = GetMockFlowElement();
var element2 = GetMockFlowElement();
// Configure the elements
element1.Setup(e => e.Process(It.IsAny <IFlowData>())).Callback((IFlowData d) =>
{
var tempdata = d.GetOrAdd("element1", (p) => new TestElementData(p));
tempdata["key"] = "done";
});
element2.Setup(e => e.Process(It.IsAny <IFlowData>())).Callback((IFlowData d) =>
{
var tempdata = d.GetOrAdd("element2", (p) => new TestElementData(p));
tempdata["key"] = "done";
});
// Create the pipeline
var pipeline = CreatePipeline(
false,
false,
element1.Object,
element2.Object);
// Don't create the flow data via the pipeline as we just want
// to test Process.
IFlowData data = StaticFactories.CreateFlowData(pipeline);
data.Process();
// Act
pipeline.Process(data);
// Assert
Assert.IsTrue(data.Errors == null || data.Errors.Count == 0, "Expected no errors");
// Check that the resulting data has the expected values
Assert.IsTrue(data.GetDataKeys().Contains("element1"), "data from element 1 is missing in the result");
Assert.IsTrue(data.GetDataKeys().Contains("element2"), "data from element 2 is missing in the result");
Assert.AreEqual("done", data.Get("element1")["key"].ToString());
Assert.AreEqual("done", data.Get("element2")["key"].ToString());
// Check that element 1 was called before element 2.
element2.Verify(e => e.Process(It.Is <IFlowData>(d => data.GetDataKeys().Contains("element1"))),
"element 1 should have been called before element 2.");
}