public void SettingANewSourceCausesInvalidation()
{
var sut = new SourceSelectPipelineStage <string>("", "".AsPipelineConstant());
var test = sut.AttachTestStage();
Assert.IsTrue(sut.SetSource("Derpface".AsPipelineConstant()));
test.AssertInvalidations(1);
}
public void SettingTheCurrentSourceAsNewSourceCausesNoInvalidation()
{
var source = 3.AsPipelineConstant();
var sut = new SourceSelectPipelineStage <int>("", source);
var test = sut.AttachTestStage();
Assert.IsFalse(sut.SetSource(source));
test.AssertInvalidations(0);
}
public void ValueIsTakenFromCurrentSource()
{
var sut = new SourceSelectPipelineStage <string>("", "Hello, World?".AsPipelineConstant());
PipelineAssert.Value(sut, "Hello, World?");
sut.SetSource("Whazzup?".AsPipelineConstant());
PipelineAssert.Value(sut, "Whazzup?");
sut.SetSourceWithoutInvalidating("Yo!".AsPipelineConstant());
PipelineAssert.Value(sut, "Yo!");
}
public void SettingANewSourceRemovesOldDependencyANdAddsNew()
{
var input = 1.AsPipelineConstant();
var sut = new SourceSelectPipelineStage <int>("", input);
PipelineAssert.DependentOn(sut, input);
var input2 = 2.AsPipelineConstant();
sut.SetSource(input2);
PipelineAssert.NotDependentOn(sut, input);
PipelineAssert.DependentOn(sut, input2);
var input3 = 3.AsPipelineConstant();
sut.SetSourceWithoutInvalidating(input3);
PipelineAssert.NotDependentOn(sut, input2);
PipelineAssert.DependentOn(sut, input3);
}
