// Test type specific getFirstIncidence Method
@Test
public void testGetFirstIncidence() throws GraphIOException {
Schema s =
GraphIO.loadSchemaFromFile(GenericGraphImplTest.SCHEMAFOLDER + "VertexTestSchema.tg");
Graph g = s.createGraph(ImplementationType.GENERIC);
Vertex[] vertices = new Vertex[6];
vertices[0] = g.createVertex(g.getGraphClass().getVertexClass("A"));
vertices[1] = g.createVertex(g.getGraphClass().getVertexClass("B"));
vertices[2] = g.createVertex(g.getGraphClass().getVertexClass("C"));
vertices[3] = g.createVertex(g.getGraphClass().getVertexClass("D"));
vertices[4] = g.createVertex(g.getGraphClass().getVertexClass("C2"));
vertices[5] = g.createVertex(g.getGraphClass().getVertexClass("D2"));
EdgeClass[] edgeClasses = new EdgeClass[7];
edgeClasses[0] = g.getGraphClass().getEdgeClass("E");
edgeClasses[1] = g.getGraphClass().getEdgeClass("F");
edgeClasses[2] = g.getGraphClass().getEdgeClass("G");
edgeClasses[3] = g.getGraphClass().getEdgeClass("H");
edgeClasses[4] = g.getGraphClass().getEdgeClass("I");
edgeClasses[5] = g.getGraphClass().getEdgeClass("J");
edgeClasses[6] = g.getGraphClass().getEdgeClass("K");
for (Vertex v : vertices) {
for (EdgeClass ec : edgeClasses) {
assertNull(v.getFirstIncidence(ec));
assertNull(v.getFirstIncidence(ec, EdgeDirection.IN));
assertNull(v.getFirstIncidence(ec, EdgeDirection.OUT));
}
}
Edge[] edges = new Edge[7];
edges[0] = g.createEdge(edgeClasses[0], vertices[0], vertices[1]);
edges[1] = g.createEdge(edgeClasses[1], vertices[2], vertices[3]);
edges[2] = g.createEdge(edgeClasses[2], vertices[2], vertices[3]);
edges[3] = g.createEdge(edgeClasses[3], vertices[0], vertices[1]);
edges[4] = g.createEdge(edgeClasses[4], vertices[0], vertices[0]);
edges[5] = g.createEdge(edgeClasses[5], vertices[4], vertices[5]);
edges[6] = g.createEdge(edgeClasses[6], vertices[0], vertices[1]);
assertEquals(vertices[0].getFirstIncidence(edgeClasses[0]), edges[0]);
assertEquals(vertices[0].getFirstIncidence(edgeClasses[6]), edges[6]);
assertEquals(vertices[1].getFirstIncidence(edgeClasses[0]), edges[0].getReversedEdge());
assertEquals(vertices[1].getFirstIncidence(edgeClasses[6]), edges[6].getReversedEdge());
assertEquals(vertices[2].getFirstIncidence(edgeClasses[1]), edges[1]);
assertEquals(vertices[3].getFirstIncidence(edgeClasses[1]), edges[1].getReversedEdge());
assertEquals(vertices[4].getFirstIncidence(edgeClasses[5]), edges[5]);
assertEquals(vertices[5].getFirstIncidence(edgeClasses[5]), edges[5].getReversedEdge());
assertEquals(
vertices[0].getFirstIncidence(edgeClasses[4], EdgeDirection.IN),
edges[4].getReversedEdge());
assertEquals(vertices[2].getFirstIncidence(edgeClasses[0], EdgeDirection.OUT), edges[1]);
}
