private static String buildBatchDirectoryPath() {
		//
		// In batch mode we rely on the fact that the test environment has been setup with a
		// custom temp directory.
		//
		try {
			return new File(ApplicationUtilities.getDefaultUserTempDir("ghidra"),
				"test_" + UUID.randomUUID() + File.separator + "temp.data").getPath();
		}
		catch (IOException e) {
			throw new AssertException(e);
		}
	}
Get the directory path within which all temporary test data files should be created.  This
method will only initialize the test directory path one time.
Ghidra/Framework/Generic/src/main/java/generic/test/AbstractGTest.java