使用Espresso更新EditText很容易,但在测试过程中我找不到改变文本的方法(比如使用TextView.setText(" someText");方法)。 / p>
ViewAction.replaceText(stringToBeSet);
不工作,因为它应该是EditText;
答案 0 :(得分:17)
您可以考虑实现自己的ViewAction。
以下是来自espresso库的replaceText viewaction的修改版本,该版本适用于TextView
。
public static ViewAction setTextInTextView(final String value){
return new ViewAction() {
@SuppressWarnings("unchecked")
@Override
public Matcher<View> getConstraints() {
return allOf(isDisplayed(), isAssignableFrom(TextView.class));
}
@Override
public void perform(UiController uiController, View view) {
((TextView) view).setText(value);
}
@Override
public String getDescription() {
return "replace text";
}
};
}
答案 1 :(得分:0)
您只需在声明的布局中添加布局TextView
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context=".MainActivity">
<TextView
android:textColor="#123456"
android:textSize="20dp"
android:id="@+id/editText"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</LinearLayout>
@RunWith(AndroidJUnit4.class)
public class MainActivityTest {
@Rule
public ActivityTestRule<MainActivity> mMain = new ActivityTestRule<> (MainActivity.class);
/*set text view in textView */
public static ViewAction setTextInTextView(final String value){
return new ViewAction() {
@SuppressWarnings("unchecked")
@Override
public Matcher<View> getConstraints() {
return allOf(isDisplayed(), isAssignableFrom(TextView.class));
//
// To check that the found view is TextView or it's subclass like EditText
// so it will work for TextView and it's descendants
}
@Override
public void perform(UiController uiController, View view) {
((TextView) view).setText(value);
}
@Override
public String getDescription() {
return "replace text";
}
};
}
现在像这样使用您的方法
//need add your test case here
@Test
public void showTextView(){
delay(2000);
onView(withId(R.id.editText))
.perform(setTextInTextView("my text"));
delay(2000);
}
**现在您还可以添加延迟方法以同时显示仿真器或真实设备*
/* delay checking of this position */
private void delay(long i) {
try {
Thread.sleep(i);
} catch (InterruptedException e) {
e.printStackTrace();
}
答案 2 :(得分:0)
您只需在声明的布局中添加布局TextView
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context=".MainActivity">
<TextView
android:textColor="#123456"
android:textSize="20dp"
android:id="@+id/textView"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</LinearLayout>
**在测试类中编写代码以检查textview中是否显示文本**
@Test
public void checkUserId(){
Espresso.onView(withId(R.id.textView)).check(ViewAssertions.matches(ViewMatchers.isDisplayed()));
}
答案 3 :(得分:0)
Kotlin 版本,
由于在Espresso中没有用于在ViewAction
上设置文本的默认TextView
,因此您必须创建自己的文本。
步骤1:定义新的ViewAction,以在TextView
上设置文本,例如
fun setTextInTextView(value: String): ViewAction {
return object : ViewAction {
override fun getConstraints(): Matcher<View> {
return CoreMatchers.allOf(ViewMatchers.isDisplayed(), ViewMatchers.isAssignableFrom(TextView::class.java))
}
override fun perform(uiController: UiController, view: View) {
(view as TextView).text = value
}
override fun getDescription(): String {
return "replace text"
}
}
}
然后将其用作
onView(withId(R.id.my_text_view)).perform(setTextInTextView("Espresso is awesome"))