src/test/resources/res/layout/webview_holder.xml

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout
        xmlns:android="http://schemas.android.com/apk/res/android"
        android:orientation="vertical"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        >

    <WebView
            android:id="@+id/web_view"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            />

</LinearLayout>