public void PopulateStartingContextParameters_CalledWithStartingParameters()
{
Graph graph = new Graph();
GraphContextParameter startingParameter = new GraphContextParameter {
type = GraphContextParameterType.Int, key = "Key"
};
graph.AddStartingContextParameter(startingParameter);
IGraphContext mockContext = Substitute.For <IGraphContext>();
IGraphContextFactory stubFactory = Substitute.For <IGraphContextFactory>();
stubFactory.MakeContext().Returns(mockContext);
GraphContextFactoryLocator.Provide(stubFactory);
graph.Start();
mockContext.Received().PopulateStartingContextParameters(Arg.Is <IList <GraphContextParameter> >(list => list.Contains(startingParameter)));
}