public void BoggleEdge_Equals_WhenEitherVertexIsNull_ReturnsFalse()
{
BoggleNode vOne = new BoggleNode(0, 0);
BoggleNode vTwo = new BoggleNode(1, 0);
BoggleEdge one = new BoggleEdge(vOne, vTwo);
BoggleEdge two = new BoggleEdge(vOne, null);
Assert.IsFalse(one.Equals(two));
Assert.IsFalse(two.Equals(one));
two.VertexOne = null;
two.VertexTwo = vTwo;
Assert.IsFalse(one.Equals(two));
Assert.IsFalse(two.Equals(one));
one.VertexOne = null;
one.VertexTwo = vTwo;
two.VertexOne = vOne;
two.VertexTwo = vTwo;
Assert.IsFalse(one.Equals(two));
Assert.IsFalse(two.Equals(one));
one.VertexOne = vOne;
one.VertexTwo = null;
two.VertexOne = vOne;
two.VertexTwo = vTwo;
Assert.IsFalse(one.Equals(two));
Assert.IsFalse(two.Equals(one));
}
public void BoggleEdge_Equals_WhenAllVerticesAreNull_ReturnsTrue()
{
BoggleEdge one = new BoggleEdge(null, null);
BoggleEdge two = new BoggleEdge(null, null);
Assert.IsTrue(one.Equals(two));
Assert.IsTrue(two.Equals(one));
}
public void BoggleEdge_Equals_ReturnsTrueWhenBothAreEqual()
{
BoggleNode vOne = new BoggleNode(0, 0);
BoggleNode vTwo = new BoggleNode(1, 0);
BoggleEdge one = new BoggleEdge(vOne, vTwo);
BoggleEdge two = new BoggleEdge(vOne, vTwo);
Assert.IsTrue(one.Equals(two));
Assert.IsTrue(two.Equals(one));
// now swap the vertex orders - the edges should still be equal
one.VertexOne = vOne;
one.VertexTwo = vTwo;
two.VertexOne = vTwo;
two.VertexTwo = vOne;
Assert.IsTrue(one.Equals(two));
Assert.IsTrue(two.Equals(one));
}
public void BoggleEdge_Equals_WhenOneEdgeIsNull_ReturnsFalse()
{
BoggleEdge one = new BoggleEdge();
BoggleEdge two = null;
Assert.IsFalse(one.Equals(two));
}