private void assertAllVisibleBut(AbstractTestVertex... vertices) {

		Set<AbstractTestVertex> visible = getAllVertices();
		Set<AbstractTestVertex> hidden = CollectionUtils.asSet(vertices);

		visible.removeAll(hidden);

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