@Test
    void verifyRegexAction() {
        val properties = new PrincipalTransformationProperties();
        properties.setPattern("test.+");
        val t = PrincipalNameTransformerUtils.newPrincipalNameTransformer(properties);
        assertNotNull(t);
    }
This is {@link PrincipalNameTransformerUtilsTests}.

@author Misagh Moayyed
@since 5.3.0
core/cas-server-core-authentication-api/src/test/java/org/apereo/cas/authentication/principal/PrincipalNameTransformerUtilsTests.java