private static void assertEqualsIgnoreCase(String expected, String actual) {
        if (expected == null) {
            if (actual == null) {
                return;
            }
            fail("Expected null, actual: <" + actual + ">");
        } else if (actual == null) {
            fail("Expected: <" + expected + ">, actual: null");
        } else {
            if (!expected.equalsIgnoreCase(actual)) {
                fail("Expected: <" + expected + ">, actual: <" + actual + ">");
            }
        }
    }
A possible signature using SHA256withDSA of Vector2Data. Note that DSS is
randomized, so this won't be the exact signature you'll get out of
another signing operation unless you use a fixed RNG.
common/src/test/java/org/conscrypt/java/security/SignatureTest.java