@Test
    public void resolve_Base64() {
        String input = "Hello World";
        String output = resolve("${base64:" + input + "}");
        assertThat(output, equalTo(ENCODE.lookup(input)));
        assertThat(DECODE.lookup(output), equalTo(input));
    }
Ensures that prefixes in the secret ID which are not covered by the CasC protocol substitutors (e.g. base64:, file:)
are left untouched and not removed.
plugin/src/test/java/io/jenkins/plugins/casc/SecretSourceResolverTest.java