濃縮咖啡測試：app:compileDebugAndroidTestKotlin FAILED with Unresolved reference: PopupBackgroundView

Question

我記錄了一個 EspressoTest，我在其中測試微調器中的值：

<LinearLayout
    android:id="@+id/linearLayoutSeedlingsTypes"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginTop="40dp">
    <androidx.cardview.widget.CardView
        android:layout_width="180dp"
        android:layout_height="wrap_content"
        app:cardCornerRadius="20dp"
        android:innerRadius="0dp"
        android:shape="ring"
        android:thicknessRatio="1.9"
        android:backgroundTint="@color/green"
        android:background="@color/green">
        <Spinner
            android:id="@+id/fas_spinner_types"
            android:layout_width="match_parent"
            android:layout_height="30dp"
            android:layout_marginLeft="@dimen/default_margin"
            android:layout_marginStart="@dimen/default_margin"
            android:entries="@array/seedlings_types"
            android:spinnerMode="dropdown"
            />

它生成了以下 Kotlin class：

@LargeTest
@RunWith(AndroidJUnit4::class)
class AddNominalTest {

    @Rule
    @JvmField
    var mActivityTestRule = ActivityTestRule(MainActivity::class.java)

    @Test
    fun addNominal() {
            //...
            
            val materialTextView = onData(anything())
            .inAdapterView(
                childAtPosition(
                    withClassName(`is`("android.widget.PopupWindow$PopupBackgroundView")),//compile error !
                    0
                )
            )
            .atPosition(1)
        materialTextView.perform(click())
        
        //...
    

在應用程序中編譯時出現以下錯誤：compileDebugAndroidTestKotlin: Unresolved reference: PopupBackgroundView

關於這個錯誤的任何想法？

Answer 1

我也有同樣的問題。 記錄 espresso 測試后，發現錯誤顯示“Unresolved reference: PopupBackgroundView”

[ Espresson 測試代碼]: val materialTextView = onData(anything()).inAdapterView( childAtPosition( withClassName( is ("android.widget.PopupWindow$PopupBackgroundView")), 0 ) ).atPosition(4) materialTextView.perform(click( ))

androidTestImplementation 'androidx.test.ext:junit:1.1.3' androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.0-alpha03' androidTestImplementation 'androidx.test:rules:1.4.0-alpha05' androidTestImplementation 'androidx. test.espresso:espresso-contrib:3.5.0-alpha03'

需要幫助，請

Answer 2

Jacek 建議我這個解決方案：

val appCompatCheckedTextView2 = onData(anything())
    **.inRoot(isPlatformPopup())**
    .atPosition(0)
appCompatCheckedTextView2.perform(click())