public void ShouldGetIfAnElementIsLinkedToOther()
{
var elementA = GetElementA();
var elementB = GetElementB();
var elementC = GetElementC();
var model = new SequenceModel(new MockEventAggregator());
model.Tracks.Add(new Track {
TrackType = TrackType.Visual
});
model.Tracks[0].Shots.Add(elementA);
model.Tracks[0].Shots.Add(elementB);
model.Tracks[0].Shots.Add(elementC);
// B -> C
model.LinkNextElement(elementB, elementC);
var result = model.IsElementLinkedTo(elementB, elementC);
Assert.IsTrue(result);
result = model.IsElementLinkedTo(elementA, elementC);
Assert.IsFalse(result);
}
public void ShouldGetLastElementInChainOfLinks()
{
var elementA = GetElementA();
var elementB = GetElementB();
var elementC = GetElementC();
var model = new SequenceModel(new MockEventAggregator());
model.Tracks.Add(new Track {
TrackType = TrackType.Visual
});
model.Tracks[0].Shots.Add(elementA);
model.Tracks[0].Shots.Add(elementB);
model.Tracks[0].Shots.Add(elementC);
// B -> C
model.LinkNextElement(elementB, elementC);
// A -> B
model.LinkPreviousElement(elementB, elementA);
var element = model.FindLastElementLinking(elementA, model.Tracks[0]);
Assert.AreEqual(elementC, element);
element = model.FindLastElementLinking(elementB, model.Tracks[0]);
Assert.AreEqual(elementC, element);
}
public void LinkRightElementWrongPositionsReturnsFalse()
{
var elementA = GetElementA();
var elementB = GetElementB();
var elementC = GetElementC();
var model = new SequenceModel(new MockEventAggregator());
model.Tracks.Add(new Track {
TrackType = TrackType.Visual
});
model.Tracks[0].Shots.Add(elementA);
model.Tracks[0].Shots.Add(elementB);
model.Tracks[0].Shots.Add(elementC);
var result = model.LinkNextElement(elementA, elementC);
var linkA = model.GetElementLink(elementA);
var linkB = model.GetElementLink(elementB);
Assert.IsFalse(result);
Assert.AreEqual(Guid.Empty, linkA.PreviousElementId);
Assert.AreEqual(Guid.Empty, linkA.NextElementId);
Assert.AreEqual(Guid.Empty, linkB.PreviousElementId);
Assert.AreEqual(Guid.Empty, linkB.NextElementId);
}
public void LinkRightElement()
{
var elementA = GetElementA();
var elementB = GetElementB();
var model = new SequenceModel(new MockEventAggregator());
model.Tracks.Add(new Track {
TrackType = TrackType.Visual
});
model.Tracks[0].Shots.Add(elementA);
model.Tracks[0].Shots.Add(elementB);
var result = model.LinkNextElement(elementA, elementB);
var linkA = model.GetElementLink(elementA);
var linkB = model.GetElementLink(elementB);
Assert.IsTrue(result);
Assert.IsNotNull(linkA);
Assert.IsNotNull(linkB);
Assert.AreEqual(elementB.Id, linkA.NextElementId);
Assert.AreEqual(elementA.Id, linkB.PreviousElementId);
Assert.AreEqual(Guid.Empty, linkA.PreviousElementId);
Assert.AreEqual(Guid.Empty, linkB.NextElementId);
}
public void UnlinkMiddleElementRemovesAllLinks()
{
var elementA = GetElementA();
var elementB = GetElementB();
var elementC = GetElementC();
var model = new SequenceModel(new MockEventAggregator());
model.Tracks.Add(new Track {
TrackType = TrackType.Visual
});
model.Tracks[0].Shots.Add(elementA);
model.Tracks[0].Shots.Add(elementB);
model.Tracks[0].Shots.Add(elementC);
// link
var result = model.LinkNextElement(elementA, elementB);
Assert.IsTrue(result);
result = model.LinkNextElement(elementB, elementC);
Assert.IsTrue(result);
// unlink
model.UnlinkElement(elementB);
var linkA = model.GetElementLink(elementA);
Assert.AreEqual(Guid.Empty, linkA.PreviousElementId);
Assert.AreEqual(Guid.Empty, linkA.NextElementId);
var linkB = model.GetElementLink(elementB);
Assert.AreEqual(Guid.Empty, linkB.PreviousElementId);
Assert.AreEqual(Guid.Empty, linkB.NextElementId);
var linkC = model.GetElementLink(elementC);
Assert.AreEqual(Guid.Empty, linkC.PreviousElementId);
Assert.AreEqual(Guid.Empty, linkC.NextElementId);
}