Test to prove that java.util.Base64 class works identically to sun.misc.BASE64

JavaUtilBase64VsSunMiscBASE64

	@Test
	public void testBase64() throws IOException {
		String s = "the CAT sat on the MAT";
		String enc = "dGhlIENBVCBzYXQgb24gdGhlIE1BVA==";

		String sunMiscVersion = new String(new sun.misc.BASE64Decoder().decodeBuffer(enc), "utf8");
		String commonsVersion = new String(Base64.getDecoder().decode(enc), "utf8");

		Assert.assertThat(commonsVersion, is(sunMiscVersion));
		Assert.assertThat(commonsVersion, is(s));

		String encodedBySunMisc = new sun.misc.BASE64Encoder().encode(s.getBytes());
		String encodedByCommons = new String(Base64.getEncoder().encode(s.getBytes()));
		assertThat(encodedByCommons, is(encodedBySunMisc));
	}