当导航抽屉由带有图像和文本视图的行列表组成时，如何单击导航抽屉项目？
我使用了来自以下位置的 Espresso 测试源示例： git/ testapp_test/ src/ main/ java/ com/ google/ android/ apps/ common/testing/ ui/ testapp/ DrawerActionsTest.java
我从贡献中检索了 DrawerActions 和 DrawerMatchers 并将它们本地放置在我的测试项目中。
导航抽屉行是：
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="48dp"
android:background="@drawable/list_selector">
<ImageView
android:id="@+id/icon"
etc ... />
<TextView
android:id="@+id/title"
etc.... />
</RelativeLayout>
导航项目有：
public class NavDrawerItem {
public String title;
public int icon;
....
// a matcher
@Override
public boolean equals( Object mob2) {
String otherName = ((NavDrawerItem) mob2).title;
return( title.equals( otherName));
}
}
NavigationDrawerAdapter 填充导航抽屉视图。
Espresso 测试源打开抽屉，关闭它，重新打开它......但我找不到第一个“导入”项目的匹配项。因此测试在执行单击时停止。
代码是：
public LearnerAppAutoTest() {
super(MainActivity.class);
}
@Override
protected void setUp() throws Exception {
super.setUp();
getActivity();
}
public void testOpenAndCloseDrawer() {
openDrawer(R.id.drawer_layout);
closeDrawer(R.id.drawer_layout);
openDrawer(R.id.drawer_layout);
onView(withId(R.id.drawer_layout)).check(matches(isOpen()));
String rowContents = "Import";
// Option 1: too many lists having an "Import" string
onData( allOf( is( instanceOf( String.class)), is( rowContents))).perform(click());
// Option 2: selecting on NavDrawerItem.class and a matcher
// ... still all matches, also in other lists match. Why? They don't have NavDrawerItems.
onData( allOf( is( instanceOf( NavDrawerItem.class)), is( rowContents))).perform(click());
// Option 3: custom matcher
// ... still all matches, also in other lists match. Why?
onData( allOf( instanceOf( NavDrawerItem.class), navDrawerItemHavingName( rowContents))).perform( click());
}
因此，无论我编程什么，都会有多个匹配器......甚至来自没有 NavDrawerItem 类的列表。
