75 lines
3.0 KiB
Java
75 lines
3.0 KiB
Java
/*
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* Copyright (C) 2021 The Dagger Authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package dagger.hilt.android.internal.managers;
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import static com.google.common.truth.Truth.assertThat;
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import static org.junit.Assert.assertThrows;
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import androidx.lifecycle.Lifecycle;
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import android.os.Build;
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import androidx.fragment.app.Fragment;
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import androidx.fragment.app.FragmentActivity;
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import androidx.test.core.app.ActivityScenario;
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import androidx.test.ext.junit.runners.AndroidJUnit4;
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import dagger.hilt.android.AndroidEntryPoint;
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import dagger.hilt.android.internal.managers.ViewComponentManager.FragmentContextWrapper;
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import dagger.hilt.android.testing.HiltAndroidRule;
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import dagger.hilt.android.testing.HiltAndroidTest;
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import dagger.hilt.android.testing.HiltTestApplication;
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import org.junit.Rule;
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import org.junit.Test;
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import org.junit.runner.RunWith;
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import org.robolectric.annotation.Config;
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@HiltAndroidTest
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@RunWith(AndroidJUnit4.class)
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// Robolectric requires Java9 to run API 29 and above, so use API 28 instead
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@Config(sdk = Build.VERSION_CODES.P, application = HiltTestApplication.class)
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public final class FragmentContextWrapperLeakTest {
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/** An activity to test injection. */
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@AndroidEntryPoint(FragmentActivity.class)
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public static final class TestActivity extends Hilt_FragmentContextWrapperLeakTest_TestActivity {}
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/** A fragment to test injection. */
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@AndroidEntryPoint(Fragment.class)
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public static final class TestFragment extends Hilt_FragmentContextWrapperLeakTest_TestFragment {}
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@Rule public HiltAndroidRule hiltRule = new HiltAndroidRule(this);
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@Test
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public void testFragmentContextWrapperDoesNotLeakFragment() {
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try (ActivityScenario<TestActivity> scenario = ActivityScenario.launch(TestActivity.class)) {
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TestFragment fragment = new TestFragment();
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scenario.onActivity(
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activity ->
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activity
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.getSupportFragmentManager()
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.beginTransaction()
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.add(fragment, "TestFragment")
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.commitNow());
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FragmentContextWrapper fragmentContextWrapper =
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(FragmentContextWrapper) fragment.getContext();
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assertThat(fragmentContextWrapper.getFragment()).isEqualTo(fragment);
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scenario.moveToState(Lifecycle.State.DESTROYED);
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NullPointerException exception =
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assertThrows(NullPointerException.class, fragmentContextWrapper::getFragment);
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assertThat(exception).hasMessageThat().contains("The fragment has already been destroyed");
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}
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}
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}
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