accessTokenHelper.setRandom(customRandom);

        final String token1 = accessTokenHelper.generateAccessToken();

        accessTokenHelper.setRandom(new Random(12345L));
        final String token2 = accessTokenHelper.generateAccessToken();

        assertEquals(token1, token2);
    }

    public void test_generateAccessToken_withCustomRandom() {

        assertTrue(messages.hasMessageOf(property));
    }

    public void test_addErrorsInvalidKuromojiSegmentation() {
        String property = "testProperty";
        String arg0 = "token1";
        String arg1 = "token2";
        FessMessages result = messages.addErrorsInvalidKuromojiSegmentation(property, arg0, arg1);
        assertNotNull(result);
        assertSame(messages, result);