@Test
    public void testMissingAlgorithm() {
        val config = new SecretSignatureConfiguration(MAC_SECRET, null);
        TestsHelper.expectException(config::init, TechnicalException.class, "algorithm cannot be null");
    }
Tests {@link SecretSignatureConfiguration}.

@author Jerome Leleu
@since 1.9.2
pac4j-jwt/src/test/java/org/pac4j/jwt/config/signature/SecretSignatureConfigurationTests.java