assertEquals("METADATA", SsoResponseType.METADATA.toString());
        assertEquals("LOGOUT", SsoResponseType.LOGOUT.toString());
    }

    @Test
    public void test_equals() {
        // Test equals method for enum constants
        assertTrue(SsoResponseType.METADATA.equals(SsoResponseType.METADATA));
        assertTrue(SsoResponseType.LOGOUT.equals(SsoResponseType.LOGOUT));

        int hashCode2 = crawlerEngineClient.hashCode();
        assertEquals(hashCode1, hashCode2);
    }

    // Test equals method
    @Test
    public void test_equals() {
        // Test equals method basic functionality
        assertTrue(crawlerEngineClient.equals(crawlerEngineClient));
        assertFalse(crawlerEngineClient.equals(null));

        }

        assertNotNull(originalException);
        assertNotNull(rethrownException);
        assertSame(originalException, rethrownException);
    }

    @Test
    public void test_equals() {
        // Test that different instances are not equal
        DictionaryExpiredException exception1 = new DictionaryExpiredException();
        DictionaryExpiredException exception2 = new DictionaryExpiredException();

        synonymItem.setNewOutputs(new String[0]);
        assertTrue(synonymItem.isUpdated());
        assertTrue(synonymItem.isDeleted());
    }

    @Test
    public void test_equals1() {
        final SynonymItem synonymItem1 = new SynonymItem(1, new String[] { "a", "A" }, new String[] { "b", "B" });

        assertTrue(synonymItem1.equals(synonymItem1));

        assertFalse(kuromojiItem.isDeleted());

        kuromojiItem.setNewToken("");
        assertTrue(kuromojiItem.isUpdated());
        assertTrue(kuromojiItem.isDeleted());
    }

    @Test
    public void test_equals1() {
        final KuromojiItem kuromojiItem1 = new KuromojiItem(1, "t1", "s1", "r1", "p1");

        assertTrue(kuromojiItem1.equals(kuromojiItem1));

        stemmerOverrideItem.setNewOutput("");
        assertTrue(stemmerOverrideItem.isUpdated());
        assertTrue(stemmerOverrideItem.isDeleted());
    }

    @Test
    public void test_equals1() {
        final StemmerOverrideItem stemmerOverrideItem1 = new StemmerOverrideItem(1, "aaa", "a");

        assertTrue(stemmerOverrideItem1.equals(stemmerOverrideItem1));