private String getResourcePath(String res) {
        URL resource = StandardTLSTest.class.getResource(res);
        try {
            return Paths.get(resource.toURI()).toFile().getAbsolutePath();
        } catch (URISyntaxException e) {
            throw new RuntimeException(e);
        }
    }
Scenario:
  - No settings whatsoever.
  - Will fail, as defaults are relatively safe,
    and API certificate will not be recognised.
gateway/platforms/servlet/src/test/java/io/apiman/gateway/platforms/servlet/auth/tls/StandardTLSTest.java