我正在使用以下测试方法来检查Arraylist是否按预期排序。
@Test
void compareFields()
{
Assignment14 assignment14 = new Assignment14();
ArrayList<Person> PeopleList = new ArrayList<Person>();
PeopleList.add(new Person("Alex",56));
PeopleList.add(new Person("Thomas",23));
PeopleList.add(new Person("John",10));
ArrayList<Person> actualSortedResult = assignment14.compareFields(PeopleList);
ArrayList<Person> expectedSortedResult = new ArrayList<Person>();
expectedSortedResult.add(new Person("Alex",56));
expectedSortedResult.add(new Person("John",10));
expectedSortedResult.add(new Person("Thomas",23));
Assert.assertEquals(expectedSortedResult, actualSortedResult);
}
但是,尽管期望值和实际值相似,但与伙伴们一样发生了错误。
java.lang.AssertionError: expected: java.util.ArrayList<[Person{name='Alex', age=56}, Person{name='John', age=10}, Person{name='Thomas', age=23}]> but was: java.util.ArrayList<[Person{name='Alex', age=56}, Person{name='John', age=10}, Person{name='Thomas', age=23}]>
Expected :java.util.ArrayList<[Person{name='Alex', age=56}, Person{name='John', age=10}, Person{name='Thomas', age=23}]>
Actual :java.util.ArrayList<[Person{name='Alex', age=56}, Person{name='John', age=10}, Person{name='Thomas', age=23}]>
<Click to see difference>
我尝试了以下断言类型,但没有任何效果。
assertTrue("check equality", Arrays.equals(expectedSortedResult.toArray(), actualSortedResult.toArray()));
Assert.assertEquals(expectedSortedResult, actualSortedResult);
assertEquals(expectedSortedResult, actualSortedResult);
assertTrue(expectedSortedResult.equals(actualSortedResult));
assertArrayEquals(expectedSortedResult, actualSortedResult);
我能知道我的方法有什么问题或应该做什么吗?
ArrayList
等于合同说:Returns true if and only if the specified object is also a list, both lists have the same size, and all corresponding pairs of elements in the two lists are equal.