public void VertexDescriptor_RemoveEdge_FailsByAttemptToAddEdgeWithWrongVertices()
{
VertexDescriptor <int, string> vertexDescriptor = new VertexDescriptor <int, string>(10);
EdgeDescriptor <int, string> edgeDesciptor = new EdgeDescriptor <int, string>(10, 20, "edge");
vertexDescriptor.AddEdge(edgeDesciptor);
Assert.AreEqual(1, vertexDescriptor.Edges.Count());
EdgeDescriptor <int, string> unrelatedEdgeDesciptor = new EdgeDescriptor <int, string>(100, 200, "edge");
vertexDescriptor.AddEdge(unrelatedEdgeDesciptor);
}
public void VertexDescriptor_RemoveEdge_FailsByAttemptToAddEdgeWithWrongVertices()
{
VertexDescriptor <int, string> vertexDescriptor = new VertexDescriptor <int, string>(10);
EdgeDescriptor <int, string> edgeDesciptor = new EdgeDescriptor <int, string>(10, 20, "edge");
vertexDescriptor.AddEdge(edgeDesciptor);
Assert.Single(vertexDescriptor.Edges);
EdgeDescriptor <int, string> unrelatedEdgeDesciptor = new EdgeDescriptor <int, string>(100, 200, "edge");
var exception = Assert.Throws <InvalidOperationException>(() => vertexDescriptor.AddEdge(unrelatedEdgeDesciptor));
Assert.Equal("Vertex '10' does not belong to the current edge that contains '100' and '200'", exception.Message);
}
public void VertexDescriptor_AddEdge_FailsByAttemptToAddEdgeWithWrongVertices()
{
int vertex1 = 10;
int vertex2 = 20;
int vertex3 = 30;
VertexDescriptor <int, string> vertexDescriptor = new VertexDescriptor <int, string>(vertex3);
EdgeDescriptor <int, string> edgeDesciptor = new EdgeDescriptor <int, string>(vertex1, vertex2, "edge");
vertexDescriptor.AddEdge(edgeDesciptor);
}
public void VertexDescriptor_AddEdge_FailsByAttemptToAddEdgeWithWrongVertices()
{
int vertex1 = 10;
int vertex2 = 20;
int vertex3 = 30;
VertexDescriptor <int, string> vertexDescriptor = new VertexDescriptor <int, string>(vertex3);
EdgeDescriptor <int, string> edgeDesciptor = new EdgeDescriptor <int, string>(vertex1, vertex2, "edge");
var exception = Assert.Throws <InvalidOperationException>(() => vertexDescriptor.AddEdge(edgeDesciptor));
Assert.Equal("Vertex '30' does not belong to the current edge that contains '10' and '20'", exception.Message);
}
public void VertexDescriptor_AddEdge_AddsDescriptorToEdges()
{
int vertex1 = 10;
int vertex2 = 20;
VertexDescriptor <int, string> vertexDescriptor = new VertexDescriptor <int, string>(vertex1);
Assert.Empty(vertexDescriptor.Edges);
EdgeDescriptor <int, string> edgeDesciptor = new EdgeDescriptor <int, string>(vertex1, vertex2, "edge");
vertexDescriptor.AddEdge(edgeDesciptor);
Assert.Contains(edgeDesciptor, vertexDescriptor.Edges);
}
public void VertexDescriptor_AddEdge_AddsDescriptorToEdges()
{
int vertex1 = 10;
int vertex2 = 20;
VertexDescriptor <int, string> vertexDescriptor = new VertexDescriptor <int, string>(vertex1);
Assert.AreEqual(0, vertexDescriptor.Edges.Count());
EdgeDescriptor <int, string> edgeDesciptor = new EdgeDescriptor <int, string>(vertex1, vertex2, "edge");
vertexDescriptor.AddEdge(edgeDesciptor);
Assert.IsTrue(vertexDescriptor.Edges.Contains(edgeDesciptor));
}
public void VertexDescriptor_RemoveEdge_RemovesEdgeFromVertex()
{
int vertex1 = 10;
int vertex2 = 20;
VertexDescriptor <int, string> vertexDescriptor = new VertexDescriptor <int, string>(vertex1);
EdgeDescriptor <int, string> edgeDesciptor = new EdgeDescriptor <int, string>(vertex1, vertex2, "edge");
vertexDescriptor.AddEdge(edgeDesciptor);
Assert.Contains(edgeDesciptor, vertexDescriptor.Edges);
vertexDescriptor.RemoveEdge(edgeDesciptor);
Assert.DoesNotContain(edgeDesciptor, vertexDescriptor.Edges);
}
public void VertexDescriptor_TryFindEdge_ReturnsFalseForWrongVertex()
{
int vertex1 = 10;
int vertex2 = 20;
VertexDescriptor <int, string> vertexDescriptor = new VertexDescriptor <int, string>(vertex1);
EdgeDescriptor <int, string> edgeDesciptor = new EdgeDescriptor <int, string>(vertex1, vertex2, "edge");
vertexDescriptor.AddEdge(edgeDesciptor);
EdgeDescriptor <int, string> foundEdge;
bool result = vertexDescriptor.TryFindEdge(vertex2, vertex1, out foundEdge);
Assert.False(result);
Assert.Equal(default(EdgeDescriptor <int, string>), foundEdge);
}
public void VertexDescriptor_TryFindEdge_ReturnsEdgeByVertex()
{
int vertex1 = 10;
int vertex2 = 20;
VertexDescriptor <int, string> vertexDescriptor = new VertexDescriptor <int, string>(vertex1);
EdgeDescriptor <int, string> edgeDesciptor = new EdgeDescriptor <int, string>(vertex1, vertex2, "edge");
vertexDescriptor.AddEdge(edgeDesciptor);
EdgeDescriptor <int, string> foundEdge;
bool result = vertexDescriptor.TryFindEdge(vertex1, vertex2, out foundEdge);
Assert.True(result);
Assert.Equal(foundEdge, edgeDesciptor);
}
