Android Espresso检查选定的微调器文本

Question

我的Espresso测试中有此代码

onView(withId(R.id.src))
    .perform(click());
onData(hasToString(startsWith("CCD")))
    .perform(click());
onView(withId(R.id.src))
    .check(matches(withText(containsString("CCD"))));

我想做的是单击Spinner中的项目，并检查是否确实在Spinner中选择了该项目。

但是我遇到这个错误：

android.support.test.espresso.base.DefaultFailureHandler $ AssertionFailedWithCauseError：'带有文本：包含“ CCD”的字符串”与所选视图不匹配。预期值：带文字：包含“ CCD”的字符串得到了：“ AppCompatSpinner {id = 2131558533，res-name = src，可见性= VISIBLE，宽度= 528，高度= 163，has-focus = false，has-focusable = true，has-window-focus = true，可点击= true，已启用= true，is-focused = false，is-focusable = true，is-layout-requested = false，is-selected = false，root-is-layout-requested = false，has-input-connection = false，x = 0.0，y = 0.0，子计数= 1}“

Answer 1

用withText()替换withSpinnerText()

onView(withId(spinnerId)).perform(click());
onData(allOf(is(instanceOf(String.class)), is(selectionText))).perform(click());
onView(withId(spinnerId)).check(matches(withSpinnerText(containsString(selectionText))));

参考：https://code.google.com/p/android-test-kit/issues/detail?id=85

Answer 2

非常简单的解决方案，对我来说很有效...，而无需为CustomSpinner使用匹配器

onView(withId(R.id.custom_spinner)).perform(click());
onData(anything()).atPosition(1).perform(click());
onView(withId(R.id.custom_spinner)).check(matches(withSpinnerText(containsString("yourstring"))));

Answer 3

对于自定义适配器，我要创建一个自定义匹配器：

 onView(withId(R.id.spinner)).perform(click());
 onData(allOf(is(instanceOf(YourCustomClass.class)), withMyValue("Open"))).perform(click());


public static <T> Matcher<T> withMyValue(final String name) {
    return new BaseMatcher<T>() {
        @Override
        public boolean matches(Object item) {
            return item.toString().equals(name);
        }

        @Override
        public void describeTo(Description description) {

        }
    };
}

然后，您必须在自定义类上重写toString（）方法。