public void AddDirectedEdge_ShouldThrowKeyNotFoundException_WhenNotExistingKeySpecified(DirectedGraph <int> graph, int source, int destination)
{
Assert.Throws <KeyNotFoundException>(() =>
{
graph.AddDirectedEdge(source, destination);
});
}
public void AddDirectedEdge_ShouldThrowInvalidOperationException_WhenEdgeCreatesLoopOrMultipleEdge(DirectedGraph <int> graph, int source, int destination)
{
Assert.Throws <InvalidOperationException>(() =>
{
graph.AddDirectedEdge(source, destination);
});
}
public void AddDirectedEdge_WithoutFromObject_ThrowsException()
{
var toValue = "to";
var fromValue = "from";
_directedGraph.Add(toValue);
Assert.Throws(typeof(KeyNotFoundException), () => _directedGraph.AddDirectedEdge(fromValue, toValue, 0));
}
