测试期间的异常。. class和getClass（）之间的区别

Question

我有一个静态类“电子邮件”内类“联系人”。在测试中，我遇到了一个例外：

org.opentest4j.AssertionFailedError: expected: not equal but was: <class com.epam.rd.contactbook.Contact$Email>

    at org.junit.jupiter.api.AssertionUtils.fail(AssertionUtils.java:39)
    at org.junit.jupiter.api.AssertNotEquals.failEqual(AssertNotEquals.java:276)
    at org.junit.jupiter.api.AssertNotEquals.assertNotEquals(AssertNotEquals.java:265)
    at org.junit.jupiter.api.AssertNotEquals.assertNotEquals(AssertNotEquals.java:260)
    at org.junit.jupiter.api.Assertions.assertNotEquals(Assertions.java:2815)

以下是测试中的代码：

    @Test
    void testEpamEmailIsSubClassOfEmail() {
        Contact contact = new Contact("William the Conqueror");

        Contact.Email email1 = contact.addEpamEmail("william", "legitimate");
        Contact.Email email2 = contact.addEmail("william", "normandy.fr");

        System.out.println(Contact.Email.class);
        System.out.println( email1.getClass());

        assertNotEquals(Contact.Email.class, email1.getClass());// This line throws an error
        assertTrue(email1 instanceof Contact.Email);

        assertEquals(Contact.Email.class, email2.getClass());

        assertEquals(contact.getInfo().length, 3);

    }

电子邮件1和联系人。电子邮件是电子邮件类的对象，不是吗？

Answer 1

Hava找到了原因，为什么这两个对象必须不同。在任务中，函数addEpamEmail必须有anonim类。