@Test
    void verifyRandomString() {
        val s1 = this.randomStringGenerator.getNewString();
        val s2 = this.randomStringGenerator.getNewString();
        assertNotSame(s1, s2);
    }
Tests for {@link Base64RandomStringGenerator}.

@author Timur Duehr
@since 5.2.0
core/cas-server-core-util/src/test/java/org/apereo/cas/util/gen/RandomStringGeneratorTests.java