private static void assertContainsStr(String expectedSubstr, String actualStr) {
		assertTrue("Substring [" + expectedSubstr + "] is not present in actual string [" +
			actualStr + "]", actualStr.contains(expectedSubstr));
	}
Test rendering of various Char data types.
<p>
TODO: force the WideCharDataType instance's dataOrg to switch to 32bit.
Ghidra/Framework/SoftwareModeling/src/test/java/ghidra/program/model/data/CharDataTypesRenderTest.java