private void assertEqualGraphs(DiagramGraph expectedGraph, DiagramGraph actualGraph) {
assertNotNull(actualGraph);
assertEquals(expectedGraph.getXName(), actualGraph.getXName());
assertEquals(expectedGraph.getYName(), actualGraph.getYName());
assertEquals(expectedGraph.getNumValues(), actualGraph.getNumValues());
for (int i = 0; i < expectedGraph.getNumValues(); i++) {
assertEquals(expectedGraph.getXValueAt(i), actualGraph.getXValueAt(i), 1e-10);
assertEquals(expectedGraph.getYValueAt(i), actualGraph.getYValueAt(i), 1e-10);
}
}