containsOnlyElementsOf在传递两个对象时返回false

Question

我正在编写使用jUnit作为测试运行程序的黄瓜测试用例。 如果两个对象具有相同的元素，我将使用方法断言true。

assertThat(obj1).containsOnlyElementsOf(obj2)

但是，即使两个对象具有完全相同的元素和相同的值，也不会返回true。 这是堆栈跟踪。

java.lang.AssertionError: 
Expecting:
<[com.solambda.kronos.timesheet.dto.TimesheetListRowDto@e12becd7,
com.solambda.kronos.timesheet.dto.TimesheetListRowDto@4543a8b3,
com.solambda.kronos.timesheet.dto.TimesheetListRowDto@c08e2719,
com.solambda.kronos.timesheet.dto.TimesheetListRowDto@d298d9da]>
to contain only:
<[com.solambda.kronos.timesheet.dto.TimesheetListRowDto@6276a018,
com.solambda.kronos.timesheet.dto.TimesheetListRowDto@ed39d0fe,
com.solambda.kronos.timesheet.dto.TimesheetListRowDto@7bda09e9,
com.solambda.kronos.timesheet.dto.TimesheetListRowDto@673947a0]>
elements not found:
<[com.solambda.kronos.timesheet.dto.TimesheetListRowDto@6276a018,
com.solambda.kronos.timesheet.dto.TimesheetListRowDto@ed39d0fe,
com.solambda.kronos.timesheet.dto.TimesheetListRowDto@7bda09e9,
com.solambda.kronos.timesheet.dto.TimesheetListRowDto@673947a0]>
and elements not expected:
<[com.solambda.kronos.timesheet.dto.TimesheetListRowDto@e12becd7,
com.solambda.kronos.timesheet.dto.TimesheetListRowDto@4543a8b3,
com.solambda.kronos.timesheet.dto.TimesheetListRowDto@c08e2719,
com.solambda.kronos.timesheet.dto.TimesheetListRowDto@d298d9da]>

at                      com.solambda.kronos.timesheet.steps.TimesheetSteps.i_get_the_following_timesheet   s(TimesheetSteps.java:806)
at ✽.Then I get the following timesheets: (com/solambda/kronos/timesheet/Worker_list.feature:43)

有没有人遇到过类似的问题。 让我知道我是否在某处缺少某些东西或做事不正确。

Answer 1

我假设您将assertj-core用作方法containsOnlyElementsOf assertj-core库。

这个方法containsOnlyElementsOf检查可迭代对象是否具有相同的对象，不仅检查它们是否相等！