protected void assertZoomedIn() {
		Double scale = getGraphScale(getPrimaryGraphViewer());
		int result = Double.compare(scale, 1.0);
		assertEquals("Graph not fully zoomed-in; scale: " + scale, 0, result);
	}
Finds an edge that represents the given edge, which may no longer exist with
the same (==) edge instances.
Ghidra/Features/FunctionGraph/src/test.slow/java/ghidra/app/plugin/core/functiongraph/AbstractFunctionGraphTest.java