@Test
public void testIsPubKeyCanonicalWrongPrefix() {

    // Test wrong prefix 4, right length 65
    byte[] nonCanonicalPubkey4 = new byte[65];
    assertFalse(ECKey.isPubKeyCanonical(nonCanonicalPubkey4));
    // Test wrong prefix 2, right length 33
    byte[] nonCanonicalPubkey5 = new byte[33];
    assertFalse(ECKey.isPubKeyCanonical(nonCanonicalPubkey5));
    // Test wrong prefix 3, right length 33
    byte[] nonCanonicalPubkey6 = new byte[33];
    assertFalse(ECKey.isPubKeyCanonical(nonCanonicalPubkey6));
}