public void GetAdjacentEdges_ThenOutgoingEdges()
{
// given
testObject.AddEdgeBetween(testObject[1], testObject[1]);
testObject.AddEdgeBetween(testObject[1], testObject[3]);
testObject.AddEdgeBetween(testObject[1], testObject[4]);
testObject.AddEdgeBetween(testObject[1], testObject[7]);
testObject.AddEdgeBetween(testObject[1], testObject[9]);
testObject.AddEdgeBetween(testObject[2], testObject[1]);
testObject.AddEdgeBetween(testObject[6], testObject[1]);
// when
IEnumerable <Edge <int> > result = testObject.GetAdjacentEdges(testObject[1]);
// then
result.Should().BeEquivalentTo(
new[] {
new Edge <int>(new Vertex <int>(1), new Vertex <int>(1)),
new Edge <int>(new Vertex <int>(2), new Vertex <int>(1)),
new Edge <int>(new Vertex <int>(1), new Vertex <int>(3)),
new Edge <int>(new Vertex <int>(1), new Vertex <int>(4)),
new Edge <int>(new Vertex <int>(6), new Vertex <int>(1)),
new Edge <int>(new Vertex <int>(1), new Vertex <int>(7)),
new Edge <int>(new Vertex <int>(1), new Vertex <int>(9))
});
}
public IEnumerable <Edge <TVertexId> > GetAdjacentEdges(Vertex <TVertexId> vertex) => graph.GetAdjacentEdges(vertex);
