public void TagChanged()
{
var edge = new STaggedEdge <int, TestObject>(1, 2, null);
int changeCount = 0;
edge.TagChanged += (_, _) => ++ changeCount;
edge.Tag = null;
Assert.AreEqual(0, changeCount);
var tag1 = new TestObject(1);
edge.Tag = tag1;
Assert.AreEqual(1, changeCount);
edge.Tag = tag1;
Assert.AreEqual(1, changeCount);
var tag2 = new TestObject(2);
edge.Tag = tag2;
Assert.AreEqual(2, changeCount);
edge.Tag = tag1;
Assert.AreEqual(3, changeCount);
}
public void ObjectToString()
{
var edge1 = new STaggedEdge <int, TestObject>(1, 2, null);
var edge2 = new STaggedEdge <int, TestObject>(1, 2, new TestObject(42));
var edge3 = new STaggedEdge <int, TestObject>(2, 1, null);
Assert.AreEqual("1 -> 2 (no tag)", edge1.ToString());
Assert.AreEqual("1 -> 2 (42)", edge2.ToString());
Assert.AreEqual("2 -> 1 (no tag)", edge3.ToString());
}
public void EqualsDefaultEdge_ReferenceTypeExtremities()
{
var edge1 = default(STaggedEdge <int, TestObject>);
var edge2 = new STaggedEdge <int, TestObject>();
Assert.AreEqual(edge1, edge2);
Assert.AreEqual(edge2, edge1);
Assert.IsTrue(edge1.Equals(edge2));
Assert.IsTrue(edge2.Equals(edge1));
}
public void Equals()
{
var tag1 = new TestObject(1);
var tag2 = new TestObject(2);
var edge1 = default(STaggedEdge <int, TestObject>);
var edge2 = new STaggedEdge <int, TestObject>(0, 0, null);
var edge3 = new STaggedEdge <int, TestObject>(1, 2, null);
var edge4 = new STaggedEdge <int, TestObject>(1, 2, null);
var edge5 = new STaggedEdge <int, TestObject>(2, 1, null);
var edge6 = new STaggedEdge <int, TestObject>(1, 2, tag1);
var edge7 = new STaggedEdge <int, TestObject>(1, 2, tag1);
var edge8 = new STaggedEdge <int, TestObject>(1, 2, tag2);
Assert.AreEqual(edge1, edge1);
Assert.AreEqual(edge1, edge2);
Assert.AreEqual(edge2, edge1);
Assert.IsTrue(edge1.Equals(edge2));
Assert.IsTrue(edge2.Equals(edge1));
Assert.AreNotEqual(edge1, edge3);
Assert.AreNotEqual(edge3, edge1);
Assert.IsFalse(edge1.Equals(edge3));
Assert.IsFalse(edge3.Equals(edge1));
Assert.AreEqual(edge3, edge4);
Assert.AreEqual(edge4, edge3);
Assert.IsTrue(edge3.Equals(edge4));
Assert.IsTrue(edge4.Equals(edge3));
Assert.AreNotEqual(edge3, edge5);
Assert.AreNotEqual(edge5, edge3);
Assert.IsFalse(edge3.Equals(edge5));
Assert.IsFalse(edge5.Equals(edge3));
Assert.AreNotEqual(edge3, edge6);
Assert.AreNotEqual(edge6, edge3);
Assert.IsFalse(edge3.Equals(edge6));
Assert.IsFalse(edge6.Equals(edge3));
Assert.AreEqual(edge6, edge7);
Assert.AreEqual(edge7, edge6);
Assert.IsTrue(edge6.Equals(edge7));
Assert.IsTrue(edge7.Equals(edge6));
Assert.AreNotEqual(edge6, edge8);
Assert.AreNotEqual(edge8, edge6);
Assert.IsFalse(edge6.Equals(edge8));
Assert.IsFalse(edge8.Equals(edge6));
Assert.AreNotEqual(null, edge1);
Assert.IsFalse(edge1.Equals(null));
}
public void STaggedEdgeTestEverything()
{
var e = new STaggedEdge <int, int>(0, 1, 5);
Assert.AreEqual(0, e.Source);
Assert.AreEqual(1, e.Target);
Assert.AreEqual(5, e.Tag);
Assert.AreEqual(String.Format("{0}->{1}:{2}", 0, 1, 5), e.ToString());
bool eventHappened = false;
e.TagChanged += (a, b) => { eventHappened = true; };
e.Tag = 5;
Assert.IsFalse(eventHappened);
e.Tag = 1511;
Assert.IsTrue(eventHappened);
}
