@Test
public void addGraph_overlap() {
DirectedGraph<Integer, String> graph = Graphs.createDirected(directedGraph.config());
populateInputGraph(graph);
// Add an edge that is in 'graph' (overlap)
builder.addEdge(E12, N1, N2);
builder.addGraph(graph);
assertThat(builder.build()).isEqualTo(graph);
}
@Test
public void addGraph_incompatibleMultigraphConfig() {
try {
DirectedGraph multigraph = Graphs.createDirected(Graphs.MULTIGRAPH);
ImmutableDirectedGraph.Builder immutableGraphBuilder = ImmutableDirectedGraph.builder();
immutableGraphBuilder.addGraph(multigraph);
fail("Should have rejected a graph with an incompatible multigraph configuration");
} catch (IllegalArgumentException expected) {
}
}
@Test
public void addGraph_incompatibleSelfLoopConfig() {
try {
DirectedGraph graph = Graphs.createDirected(Graphs.config().noSelfLoops());
ImmutableDirectedGraph.Builder immutableGraphBuilder = ImmutableDirectedGraph.builder();
immutableGraphBuilder.addGraph(graph);
fail("Should have rejected a graph with an incompatible self-loop configuration");
} catch (IllegalArgumentException expected) {
}
}
@Test
public void addGraph_inconsistentEdges() {
DirectedGraph<Integer, String> graph = Graphs.createDirected(directedGraph.config());
populateInputGraph(graph);
builder.addEdge(E21, N3, N1);
try {
builder.addGraph(graph);
fail(
"Should have rejected a graph whose edge definitions were inconsistent with existing"
+ "builder state");
} catch (IllegalArgumentException expected) {
}
}
@Override
@CanIgnoreReturnValue
final boolean addEdge(String e, Integer n1, Integer n2) {
DirectedGraph<Integer, String> oldGraph = Graphs.copyOf(directedGraph);
graph = directedGraph = builder.addEdge(e, n1, n2).build();
return !graph.equals(oldGraph);
}
@Override
@CanIgnoreReturnValue
final boolean addNode(Integer n) {
DirectedGraph<Integer, String> oldGraph = Graphs.copyOf(directedGraph);
graph = directedGraph = builder.addNode(n).build();
return !graph.equals(oldGraph);
}
@Override
public ImmutableDirectedGraph<Integer, String> createGraph() {
builder = ImmutableDirectedGraph.builder(Graphs.config().noSelfLoops());
return builder.build();
}
@Test
public void addGraph() {
DirectedGraph<Integer, String> graph = Graphs.createDirected(directedGraph.config());
populateInputGraph(graph);
assertThat(builder.addGraph(graph).build()).isEqualTo(graph);
}
