public static void compareFiles(final Path expectedFile, final Path actualFile, final boolean ignoreWhitespace,
                                    final boolean xml) {
        try {
            compare(expectedFile, actualFile, ignoreWhitespace, xml);
        } catch (final RuntimeException e) {
            fail(e.getMessage());
        }
    }
Generate a unified diff of the two files using the specified number of lines of context.
The diff output is sent to system out in coloured form.

@return True if the files are the same
stroom-test-common/src/main/java/stroom/test/common/ComparisonHelper.java