@Test
public void nodesAfterEdges() {
GraphWidget graph = parse("graph{1->2;2->3;2->4;1[label=\"node\"];2;3;4}"); // $NON-NLS-1$
Assert.assertNotNull("Created graph must not be null", graph); // $NON-NLS-1$
Assert.assertEquals(4, graph.getNodes().size());
Assert.assertEquals(3, graph.getConnections().size());
Assert.assertEquals("node", ((GraphNode) graph.getNodes().get(0)).getText());
}
@Test
public void multiEdgeStatements() {
GraphWidget graph = parse("digraph{1->2->3->4}"); // $NON-NLS-1$
assertEquals(4, graph.getNodes().size());
assertEquals(3, graph.getConnections().size());
/* Each node should be connected to one other, the next node: */
assertEquals(1, ((GraphNode) graph.getNodes().get(0)).getSourceConnections().size());
assertEquals(1, ((GraphNode) graph.getNodes().get(1)).getSourceConnections().size());
assertEquals(1, ((GraphNode) graph.getNodes().get(2)).getSourceConnections().size());
}
@Test
public void idsWithQuotes() {
String dot = "graph{\"node 1\";\"node 2\"}"; // $NON-NLS-1$
GraphWidget graph = parse(dot);
Assert.assertNotNull("Created graph must not be null", graph); // $NON-NLS-1$
Assert.assertEquals(
"node 1", //$NON-NLS-1$
((GraphNode) graph.getNodes().get(0)).getText());
Assert.assertEquals(
"node 2", //$NON-NLS-1$
((GraphNode) graph.getNodes().get(1)).getText());
}
@Test
public void fullyQuoted() {
String dot = "graph{\"n1\";\"n2\";\"n1\"->\"n2\"}"; // $NON-NLS-1$
GraphWidget graph = parse(dot);
Assert.assertNotNull("Created graph must not be null", graph); // $NON-NLS-1$
Assert.assertEquals(2, graph.getNodes().size());
Assert.assertEquals(1, graph.getConnections().size());
Assert.assertEquals(
"n1", //$NON-NLS-1$
((GraphNode) graph.getNodes().get(0)).getText());
Assert.assertEquals(
"n2", //$NON-NLS-1$
((GraphNode) graph.getNodes().get(1)).getText());
}
@Test
/* see http://www.graphviz.org/doc/info/attrs.html#d:style */
public void edgeStyleInvis() {
GraphWidget graph = parse("digraph{1->2[style=invis]}"); // $NON-NLS-1$
assertEquals(2, graph.getNodes().size());
assertEquals(1, graph.getConnections().size());
}
@Test
public void nodesBeforeEdges() {
GraphWidget graph = parse("graph{1;2;3;4; 1->2;2->3;2->4}"); // $NON-NLS-1$
Assert.assertNotNull("Created graph must not be null", graph); // $NON-NLS-1$
Assert.assertEquals(4, graph.getNodes().size());
Assert.assertEquals(3, graph.getConnections().size());
}
@Test
public void headerCommentGraph() {
GraphWidget graph = parse("/*A header comment*/\ngraph{1--2}"); // $NON-NLS-1$
Assert.assertNotNull("Created graph must not be null", graph); // $NON-NLS-1$
Assert.assertEquals(2, graph.getNodes().size());
Assert.assertEquals(1, graph.getConnections().size());
}
@Test
public void globalNodeAttributeAdHocNodes() {
GraphWidget graph = parse("graph{node[label=\"TEXT\"];1--2}"); // $NON-NLS-1$
Assert.assertNotNull("Created graph must not be null", graph); // $NON-NLS-1$
Assert.assertEquals(
"TEXT", //$NON-NLS-1$
((GraphNode) graph.getNodes().get(0)).getText());
}
@Test
public void globalNodeLabel() {
GraphWidget graph = parse("graph Sample{node[label=\"Node1\"];1;}"); // $NON-NLS-1$
Assert.assertNotNull("Created graph must not be null", graph); // $NON-NLS-1$
Assert.assertEquals(
"Node1", //$NON-NLS-1$
((GraphNode) graph.getNodes().get(0)).getText());
}
@Test
public void nodeDefaultLabel() {
GraphWidget graph = parse("graph Sample{1}"); // $NON-NLS-1$
Assert.assertNotNull("Created graph must not be null", graph); // $NON-NLS-1$
Assert.assertEquals(
"1", //$NON-NLS-1$
((GraphNode) graph.getNodes().get(0)).getText());
}
@Test
public void undeclaredNodes() {
GraphWidget graph =
new GraphWidget(
new DotImport("digraph{1->2;1->3}").newGraphInstance(), new Shell(), SWT.NONE);
Assert.assertEquals(3, graph.getNodes().size());
Assert.assertEquals(2, graph.getConnections().size());
}
@Test
public void otherUnsupportedStyles() {
GraphWidget graph =
parse(
"graph Sample{node[style=other];edge[style=other];1[style=other];2;1->2[style=other]}"); //$NON-NLS-1$
assertEquals(2, graph.getNodes().size());
assertEquals(1, graph.getConnections().size());
}
@Test
public void clusterSubgraph() {
Shell shell = new Shell();
DotImport dotImport =
new DotImport("digraph{subgraph cluster_1{1->2}; subgraph cluster_2{1->3}}");
GraphWidget graph = new GraphWidget(dotImport.newGraphInstance(), shell, SWT.NONE);
assertEquals("Cluster subgraphs are ignored in rendering", 3, graph.getNodes().size());
assertEquals(2, graph.getConnections().size());
}
@Test
public void useInterpreterTwice() {
String dot = "graph{1;2;3;4; 1->2;2->3;2->4}"; // $NON-NLS-1$
GraphWidget graph = parse(dot);
graph = parse(dot);
Assert.assertNotNull("Created graph must not be null", graph); // $NON-NLS-1$
Assert.assertEquals(4, graph.getNodes().size());
Assert.assertEquals(3, graph.getConnections().size());
}
@Test
public void newLinesInLabels() {
String dot = "graph{n1[label=\"node\n1\"]}"; // $NON-NLS-1$
GraphWidget graph = parse(dot);
Assert.assertNotNull("Created graph must not be null", graph); // $NON-NLS-1$
Assert.assertEquals(
"node\n1", //$NON-NLS-1$
((GraphNode) graph.getNodes().get(0)).getText());
}
@Test
public void labelsWithQuotes() {
String dot =
"graph{n1[label=\"node 1\"];n2[label=\"node 2\"];n1--n2[label=\"edge 1\"]}"; //$NON-NLS-1$
GraphWidget graph = parse(dot);
Assert.assertNotNull("Created graph must not be null", graph); // $NON-NLS-1$
Assert.assertEquals(
"node 1", //$NON-NLS-1$
((GraphNode) graph.getNodes().get(0)).getText());
Assert.assertEquals(
"node 2", //$NON-NLS-1$
((GraphNode) graph.getNodes().get(1)).getText());
Assert.assertEquals(
"edge 1",
((GraphConnection)
graph
.getConnections() //$NON-NLS-1$
.get(0))
.getText());
}
@Test
public void nodeCount() {
GraphWidget graph = parse("graph Sample{1;2}"); // $NON-NLS-1$
Assert.assertNotNull("Created graph must not be null", graph); // $NON-NLS-1$
Assert.assertEquals(2, graph.getNodes().size());
}