Move SimpleExoPlayer.Builder unit test to a separate class

PiperOrigin-RevId: 318785458

library/core/src/test/java/com/google/android/exoplayer2/ExoPlayerTest.java

@@ -105,7 +105,6 @@ import org.junit.Before;
 import org.junit.Ignore;
 import org.junit.Ignore;
 import org.junit.Test;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.junit.runner.RunWith;
-import org.robolectric.annotation.Config;
 import org.robolectric.annotation.LooperMode;
 import org.robolectric.annotation.LooperMode;
 import org.robolectric.shadows.ShadowAudioManager;
 import org.robolectric.shadows.ShadowAudioManager;
 
 
@@ -6767,20 +6766,6 @@ public final class ExoPlayerTest {
     assertThat(initialMediaItems).containsExactlyElementsIn(currentMediaItems);
     assertThat(initialMediaItems).containsExactlyElementsIn(currentMediaItems);
   }
   }
 
 
-  // TODO: Revert to @Config(sdk = Config.ALL_SDKS) once b/143232359 is resolved
-  @Test
-  @Config(minSdk = Config.OLDEST_SDK, maxSdk = Config.TARGET_SDK)
-  public void buildSimpleExoPlayerInBackgroundThread_doesNotThrow() throws Exception {
-    Thread builderThread = new Thread(() -> new SimpleExoPlayer.Builder(context).build());
-    AtomicReference<Throwable> builderThrow = new AtomicReference<>();
-    builderThread.setUncaughtExceptionHandler((thread, throwable) -> builderThrow.set(throwable));
-
-    builderThread.start();
-    builderThread.join();
-
-    assertThat(builderThrow.get()).isNull();
-  }
-
   // Internal methods.
   // Internal methods.
 
 
   private static ActionSchedule.Builder addSurfaceSwitch(ActionSchedule.Builder builder) {
   private static ActionSchedule.Builder addSurfaceSwitch(ActionSchedule.Builder builder) {

library/core/src/test/java/com/google/android/exoplayer2/SimpleExoPlayerTest.java

+/*
+ * Copyright 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.android.exoplayer2;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import androidx.test.core.app.ApplicationProvider;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+import java.util.concurrent.atomic.AtomicReference;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.robolectric.annotation.Config;
+
+/** Unit test for {@link SimpleExoPlayer}. */
+@RunWith(AndroidJUnit4.class)
+public class SimpleExoPlayerTest {
+
+  // TODO(b/143232359): Revert to @Config(sdk = Config.ALL_SDKS) once b/143232359 is resolved
+  @Test
+  @Config(minSdk = Config.OLDEST_SDK, maxSdk = Config.TARGET_SDK)
+  public void builder_inBackgroundThread_doesNotThrow() throws Exception {
+    Thread builderThread =
+        new Thread(
+            () -> new SimpleExoPlayer.Builder(ApplicationProvider.getApplicationContext()).build());
+    AtomicReference<Throwable> builderThrow = new AtomicReference<>();
+    builderThread.setUncaughtExceptionHandler((thread, throwable) -> builderThrow.set(throwable));
+
+    builderThread.start();
+    builderThread.join();
+
+    assertThat(builderThrow.get()).isNull();
+  }
+}