apparently android doesn't want us to test content providers 🤷 lmk if…

… there's something not deprecated or broken

acra-core/src/androidTest/java/org/acra/attachment/AcraContentProviderTest.java

@@ -16,25 +16,17 @@
 
 package org.acra.attachment;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertTrue;
-
 import android.content.ContentResolver;
 import android.database.Cursor;
 import android.net.Uri;
 import android.provider.OpenableColumns;
-
+import android.test.ProviderTestCase2;
+import android.webkit.MimeTypeMap;
 import androidx.test.core.app.ApplicationProvider;
 import androidx.test.ext.junit.runners.AndroidJUnit4;
-import androidx.test.platform.app.InstrumentationRegistry;
-import androidx.test.rule.provider.ProviderTestRule;
-
 import org.acra.ACRA;
 import org.junit.Before;
 import org.junit.Ignore;
-import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 
@@ -46,24 +38,21 @@
  */
 @Ignore
 @RunWith(AndroidJUnit4.class)
-public class AcraContentProviderTest {
-
-    @Rule
-    public ProviderTestRule rule = new ProviderTestRule.Builder(AcraContentProvider.class, "org.acra.test.acra").build();
+public class AcraContentProviderTest extends ProviderTestCase2<AcraContentProvider> {
     private static final String JSON_EXTENSION = "json";
     private static final String JSON_MIMETYPE = "application/json";
 
     private ContentResolver resolver;
     private File file;
 
     public AcraContentProviderTest() {
-        InstrumentationRegistry.getInstrumentation()
+        super(AcraContentProvider.class, ApplicationProvider.getApplicationContext().getPackageName() + ".acra");
     }
 
     @Before
     public void setUp() throws Exception {
         ACRA.DEV_LOGGING = true;
-        resolver = rule.getResolver();
+        resolver = ApplicationProvider.getApplicationContext().getContentResolver();
         file = File.createTempFile("test", "." + JSON_EXTENSION);
     }