public void FindPrevNode_should_return_the_parent_node_of_the_first_segment_and_throw_in_debug_build()
{
const int row = 100;
const int lane = 3;
var parentNode = new RevisionGraphRevision(GitUIPluginInterfaces.ObjectId.WorkTreeId, 0);
var childNode = new RevisionGraphRevision(GitUIPluginInterfaces.ObjectId.WorkTreeId, 0);
var segment = new RevisionGraphSegment(parentNode, childNode);
var laneNode = SetupLaneRow(row, lane, laneCount: lane + 1, firstSegment: segment);
#if !DEBUG
// innermost "return" in RELEASE build
_laneNodeLocator.FindPrevNode(row, lane).Should().Be((parentNode, false));
#else
try
{
// Exception before innermost "return" in DEBUG build
_laneNodeLocator.FindPrevNode(row, lane).Should().Be((parentNode, false));
throw new AssertionException("The debug build should throw an exception!");
}
catch (Exception x)
{
x.Message.Should().Be(string.Format("All segments for a lane should have the same parent.\n"
+ "Not fulfilled for rowIndex {0} lane {1} with {2} segments.",
row, lane, 2));
}
#endif
}
public LaneInfo(RevisionGraphSegment startSegment, LaneInfo?derivedFrom)
{
StartRevision = derivedFrom is null ? startSegment.Child : startSegment.Parent;
int colorSeed = StartRevision.Objectid.GetHashCode();
if (derivedFrom is null)
{
colorSeed ^= startSegment.Parent.Objectid.GetHashCode();
}
do
{
Color = RevisionGraphLaneColor.GetColorForLane(colorSeed);
++colorSeed;
}while (Color == derivedFrom?.Color);
}
private RevisionGraphRevision SetupLaneRow(int row, int lane, int laneCount, int nodeLane = -1, RevisionGraphSegment firstSegment = null)
{
var node = new RevisionGraphRevision(GitUIPluginInterfaces.ObjectId.WorkTreeId, 0);
var revisionGraphRow = Substitute.For <IRevisionGraphRow>();
var segments = new List <RevisionGraphSegment>();
if (firstSegment != null)
{
segments.Add(firstSegment);
}
if (lane < laneCount)
{
revisionGraphRow.GetSegmentsForIndex(lane).Returns(segments);
}
revisionGraphRow.GetCurrentRevisionLane().Returns(nodeLane);
if (lane == nodeLane)
{
revisionGraphRow.Revision.Returns(node);
}
else
{
segments.Add(new RevisionGraphSegment(node, null));
}
_revisionGraphRowProvider.GetSegmentsForRow(row).Returns(x => revisionGraphRow);
return(node);
}
