android - 做Android espresso测试时如何解决CalledFromWrongThreadException问题？

义式浓缩咖啡测试时出现错误



第47行是第二个测试中试图执行单击操作的代码。

第一个测试通过了第二个失败的地方，因为由于异常甚至无法运行。

@LargeTest
@RunWith(AndroidJUnit4::class)
class EntryActivityUITest {
    @Rule
    @JvmField
    val entryAuthActivityRule = ActivityTestRule(EntryActivity::class.java, true, false)

    @Test
    fun it_should_show_logDetails_buttons_after_starting() {
        entryAuthActivityRule.launchActivity(null)

        Espresso.onView(ViewMatchers.withId(R.id.auth_button_logDetails))
            .check(ViewAssertions.matches(ViewMatchers.isDisplayed()))
    }

    @Test
    fun should_open_logDetails_activity_after_pressing_logDetails_button() {
        entryAuthActivityRule.launchActivity(null)

        val button = entryAuthActivityRule.activity.findViewById<Button>(R.id.auth_button_logDetails)
        button.performClick()

        Espresso.onView(ViewMatchers.withId(R.id.loginDetails_textEdit_password))
            .check(ViewAssertions.matches(ViewMatchers.isDisplayed()))
    }
}

这里会发生什么？以及如何解决呢？

最佳答案

那两条线

    val button = entryAuthActivityRule.activity.findViewById<Button>(R.id.auth_button_logDetails)
    button.performClick()

看起来可疑。我本来希望

Espresso.onView(ViewMatchers.withId(R.id.auth_button_logDetails)).perform(ViewActions.click())