/** Simple test to confirm containers and joins can be added successfully to a query. */
public void testContainersAndJoinsAddToQuery() throws Exception {
Query query = new QueryImpl(new StubDatabaseMapping());
ItemContainer container1 = new ItemContainer("Table 1");
StringItem item1 = new StringItem("Column 1");
container1.addItem(item1);
query.addTable(container1);
ItemContainer container2 = new ItemContainer("Table 2");
StringItem item2 = new StringItem("Column 2");
container2.addItem(item2);
query.addTable(container2);
ItemContainer container3 = new ItemContainer("Table 3");
StringItem item3 = new StringItem("Column 3");
container3.addItem(item3);
query.addTable(container3);
SQLJoin join1to2 = new SQLJoin(item1, item2);
SQLJoin join2to3 = new SQLJoin(item2, item3);
query.addJoin(join1to2);
query.addJoin(join2to3);
assertEquals(3, query.getFromTableList().size());
assertTrue(query.getFromTableList().contains(container1));
assertTrue(query.getFromTableList().contains(container2));
assertTrue(query.getFromTableList().contains(container3));
assertEquals(2, query.getJoins().size());
assertTrue(query.getJoins().contains(join1to2));
assertTrue(query.getJoins().contains(join2to3));
}
/**
* This test is to ensure that a simple graph of the query will have proper edges and nodes.
*
* @throws Exception
*/
public void testGraphWithThreeTables() throws Exception {
QueryImpl query = new QueryImpl(new StubDatabaseMapping());
ItemContainer container1 = new ItemContainer("Table 1");
StringItem item1 = new StringItem("Column 1");
container1.addItem(item1);
query.addTable(container1);
ItemContainer container2 = new ItemContainer("Table 2");
StringItem item2 = new StringItem("Column 2");
container2.addItem(item2);
query.addTable(container2);
ItemContainer container3 = new ItemContainer("Table 3");
StringItem item3 = new StringItem("Column 3");
container3.addItem(item3);
query.addTable(container3);
SQLJoin join1to2 = new SQLJoin(item1, item2);
SQLJoin join2to3 = new SQLJoin(item2, item3);
query.addJoin(join1to2);
query.addJoin(join2to3);
assertEquals(3, query.getFromTableList().size());
assertTrue(query.getFromTableList().contains(container1));
assertTrue(query.getFromTableList().contains(container2));
assertTrue(query.getFromTableList().contains(container3));
assertEquals(2, query.getJoins().size());
assertTrue(query.getJoins().contains(join1to2));
assertTrue(query.getJoins().contains(join2to3));
TableJoinGraph tableJoinGraph = query.new TableJoinGraph();
// Check all containers and joins are in the graph
assertEquals(3, tableJoinGraph.getNodes().size());
assertTrue(tableJoinGraph.getNodes().contains(container1));
assertTrue(tableJoinGraph.getNodes().contains(container2));
assertTrue(tableJoinGraph.getNodes().contains(container3));
assertEquals(4, tableJoinGraph.getEdges().size());
assertTrue(tableJoinGraph.getEdges().contains(join1to2));
assertTrue(tableJoinGraph.getEdges().contains(join2to3));
// Check adjacent nodes are correct
assertEquals(1, tableJoinGraph.getAdjacentNodes(container1).size());
assertTrue(tableJoinGraph.getAdjacentNodes(container1).contains(container2));
assertEquals(2, tableJoinGraph.getAdjacentNodes(container2).size());
assertTrue(tableJoinGraph.getAdjacentNodes(container2).contains(container1));
assertTrue(tableJoinGraph.getAdjacentNodes(container2).contains(container3));
assertEquals(1, tableJoinGraph.getAdjacentNodes(container3).size());
assertTrue(tableJoinGraph.getAdjacentNodes(container3).contains(container2));
// Check inbound edges are correct
assertEquals(1, tableJoinGraph.getInboundEdges(container1).size());
assertTrue(tableJoinGraph.getInboundEdges(container1).contains(join1to2));
assertEquals(2, tableJoinGraph.getInboundEdges(container2).size());
assertTrue(tableJoinGraph.getInboundEdges(container2).contains(join1to2));
assertTrue(tableJoinGraph.getInboundEdges(container2).contains(join2to3));
assertEquals(1, tableJoinGraph.getInboundEdges(container3).size());
assertTrue(tableJoinGraph.getInboundEdges(container3).contains(join2to3));
// Check outbound edges are correct
assertEquals(1, tableJoinGraph.getOutboundEdges(container1).size());
assertTrue(tableJoinGraph.getOutboundEdges(container1).contains(join1to2));
assertEquals(2, tableJoinGraph.getOutboundEdges(container2).size());
assertTrue(tableJoinGraph.getOutboundEdges(container2).contains(join1to2));
assertTrue(tableJoinGraph.getOutboundEdges(container2).contains(join2to3));
assertEquals(1, tableJoinGraph.getOutboundEdges(container3).size());
assertTrue(tableJoinGraph.getOutboundEdges(container3).contains(join2to3));
}