public void EmptyGraph()
{
algo = new DataTableJoinSortAlgorithm(this.graph);
algo.Compute();
Assert.IsNull(algo.StartVertex);
CollectionAssert.AreCountEqual(0, algo.Joins);
}
public void UsersOnly()
{
DataTableJoinVertex users = this.graph.AddVertex(this.dataSource.Users, "U");
algo = new DataTableJoinSortAlgorithm(this.graph);
algo.Compute();
Assert.IsNotNull(algo.StartVertex);
Assert.AreEqual(users, algo.StartVertex);
CollectionAssert.AreCountEqual(0, algo.Joins);
ShowJoins();
}
public void JoinUsersAndOrders()
{
DataTableJoinVertex users = this.graph.AddVertex(this.dataSource.Users, "U");
DataTableJoinVertex orders = this.graph.AddVertex(this.dataSource.Orders, "O");
DataRelationJoinEdge uo = this.graph.AddEdge(users, orders, JoinType.Inner);
algo = new DataTableJoinSortAlgorithm(this.graph);
algo.Compute();
Assert.IsNotNull(algo.StartVertex);
Assert.AreEqual(1, algo.Joins.Count);
ShowJoins();
}
