content: /*
   * Copyright (C) 2018 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.platform.app;
  
  import static com.google.common.truth.Truth.assertThat;
  
  import android.os.Bundle;
  import androidx.test.ext.junit.runners.AndroidJUnit4;
  import org.junit.Test;
  import org.junit.runner.RunWith;
  
  /** {@link InstrumentationRegistry} tests. */
  @RunWith(AndroidJUnit4.class)
  public class InstrumentationRegistryTest {
  
    @Test
    public void argumentsArePopulated() {
      assertThat(InstrumentationRegistry.getArguments()).isNotNull();
    }
  
    @Test
    public void instrumentationRegistered() {
      assertThat(InstrumentationRegistry.getInstrumentation()).isNotNull();
    }
  
    @Test
    public void getArgumentsReturnsIndependentCopies() {
      Bundle readArguments = InstrumentationRegistry.getArguments();
      int originalSize = readArguments.size();
  
      readArguments.putString("mykey", "myvalue");
  
      assertThat(readArguments.size()).isGreaterThan(originalSize);
      // Subsequent reads should not be affected by the local modifications.
      assertThat(InstrumentationRegistry.getArguments().size()).isEqualTo(originalSize);
    }
  
    @Test
    public void registerInstanceCopiesArguments() {
      Bundle setArguments = new Bundle();
      setArguments.putString("entry", "val");
      int originalSize = setArguments.size();
      InstrumentationRegistry.registerInstance(
          InstrumentationRegistry.getInstrumentation(), setArguments);
      Bundle readArguments = InstrumentationRegistry.getArguments();
      assertThat(readArguments.size()).isEqualTo(originalSize);
  
      readArguments.putString("mykey", "myvalue");
  
      // Subsequent reads should not be affected by the local modifications.
      assertThat(InstrumentationRegistry.getArguments().size()).isEqualTo(originalSize);
    }
  }
  