如何在安卓仪器测试中检查工具栏标题？

android java android-espresso

2022-09-02 11:12:30

我在YT Advanced Android Espresso上找到了很棒的仪器测试教程。我从那里获取代码，并根据我的需求进行了小幅调整。

import static android.support.test.InstrumentationRegistry.getInstrumentation;
import static android.support.test.espresso.Espresso.onView;
import static android.support.test.espresso.action.ViewActions.click;
import static android.support.test.espresso.assertion.ViewAssertions.matches;
import static android.support.test.espresso.matcher.ViewMatchers.isAssignableFrom;
import static android.support.test.espresso.matcher.ViewMatchers.isDisplayed;
import static android.support.test.espresso.matcher.ViewMatchers.withChild;
import static android.support.test.espresso.matcher.ViewMatchers.withId;
import static android.support.test.espresso.matcher.ViewMatchers.withParent;
import static android.support.test.espresso.matcher.ViewMatchers.withText;
import static org.hamcrest.core.AllOf.allOf;

...

@Test
public void checkToolbarTitle() {
    String toolbarTitile = getInstrumentation().getTargetContext().getString(R.string.my_bus_stops);
    onView(allOf(isAssignableFrom(TextView.class), withParent(isAssignableFrom(Toolbar.class)))).check(matches(withText(toolbarTitile)));
}

不幸的是，它不适合我。测试失败，出现：

android.support.test.espresso.NoMatchingViewException: No views in hierarchy found matching: (is assignable from class: class android.widget.TextView and has parent matching: is assignable from class: class android.widget.Toolbar)

这是怎么回事？如何以其他方式测试它？

答案 1

这对我有用：

onView(allOf(instanceOf(TextView.class), withParent(withId(R.id.toolbar))))
    .check(matches(withText("toolbarTitile")));

答案 2

溶液

该方法很好。正如Chiu-Ki Chan在她的教程中所写的那样，你可以“精确地指出一个特定的观点”。但是您必须确保导入了正确的工具栏：

import  android.support.v7.widget.Toolbar;

而不是：

import android.widget.Toolbar;