content: /*
   * Copyright (C) 2014 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 androidx.test;
  
  import static androidx.test.core.app.ApplicationProvider.getApplicationContext;
  import static androidx.test.platform.app.InstrumentationRegistry.getInstrumentation;
  import static org.hamcrest.MatcherAssert.assertThat;
  import static org.hamcrest.Matchers.lessThan;
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertNotNull;
  
  import android.os.Bundle;
  import androidx.test.ext.junit.runners.AndroidJUnit4;
  import androidx.test.filters.MediumTest;
  import org.junit.Test;
  import org.junit.runner.RunWith;
  
  /** {@link InstrumentationRegistry} tests. */
  @RunWith(AndroidJUnit4.class)
  @MediumTest
  public class InstrumentationRegistryTest {
  
    @Test
    public void testArgumentsArePopulated() {
      assertNotNull(InstrumentationRegistry.getArguments());
    }
  
    @Test
    public void testInstrumentationRegistered() {
      assertNotNull(InstrumentationRegistry.getInstrumentation());
    }
  
    @Test
    public void verifyTargetContextInjected() {
      assertNotNull(getApplicationContext());
    }
  
    @Test
    public void verifyContextInjected() {
      assertNotNull(getInstrumentation().getContext());
    }
  
    @Test
    public void testGetArgumentsReturnsIndependentCopies() {
      Bundle readArguments = InstrumentationRegistry.getArguments();
      int originalSize = readArguments.size();
  
      readArguments.putString("mykey", "myvalue");
  
      assertThat(originalSize, lessThan(readArguments.size()));
      // Subsequent reads should not be affected by the local modifications.
      assertEquals(originalSize, InstrumentationRegistry.getArguments().size());
    }
  
    @Test
    public void testRegisterInstanceCopiesArguments() {
      Bundle setArguments = new Bundle();
      int originalSize = setArguments.size();
      InstrumentationRegistry.registerInstance(
          InstrumentationRegistry.getInstrumentation(), setArguments);
      Bundle readArguments = InstrumentationRegistry.getArguments();
      assertEquals(originalSize, readArguments.size());
  
      readArguments.putString("mykey", "myvalue");
  
      // Subsequent reads should not be affected by the local modifications.
      assertEquals(originalSize, InstrumentationRegistry.getArguments().size());
    }
  }
  