private void assertAllVisibleBut(TestEdge... edges) {

		Set<TestEdge> visible = getAllEdges();
		Set<TestEdge> hidden = CollectionUtils.asSet(edges);

		visible.removeAll(hidden);

		hidden.forEach(e -> assertAlphaEquals(0, e.getAlpha()));
		visible.forEach(e -> assertAlphaEquals(1, e.getAlpha()));
	}
Validate the alpha of the graph edges
Ghidra/Framework/Graph/src/test.slow/java/ghidra/graph/job/FilterVerticesJobTest.java