105 lines
4.1 KiB
Java
105 lines
4.1 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;
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import static com.google.common.truth.Truth.assertThat;
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import android.app.Activity;
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import android.content.Context;
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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.ext.junit.runners.AndroidJUnit4;
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import dagger.hilt.android.flags.FragmentGetContextFix;
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import dagger.hilt.android.testing.BindValueIntoSet;
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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.Robolectric;
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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 FragmentContextOnAttachTest {
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@Rule public final HiltAndroidRule rule = new HiltAndroidRule(this);
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@BindValueIntoSet
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@FragmentGetContextFix.DisableFragmentGetContextFix
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boolean disableGetContextFix = false;
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/** Hilt Activity */
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@AndroidEntryPoint(FragmentActivity.class)
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public static final class TestActivity extends Hilt_FragmentContextOnAttachTest_TestActivity {}
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/** Hilt Fragment */
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@AndroidEntryPoint(Fragment.class)
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public static final class TestFragment extends Hilt_FragmentContextOnAttachTest_TestFragment {
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Context onAttachContextContext = null;
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Context onAttachActivityContext = null;
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@Override
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public void onAttach(Context context) {
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// Test that getContext() can be called at this point
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onAttachContextContext = getContext();
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super.onAttach(context);
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}
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@Override
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public void onAttach(Activity activity) {
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// Test that getContext() can be called at this point
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onAttachActivityContext = getContext();
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super.onAttach(activity);
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}
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}
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@Test
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public void testGetContextAvailableBeforeSuperOnAttach() throws Exception {
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FragmentActivity activity = Robolectric.setupActivity(TestActivity.class);
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TestFragment fragment = new TestFragment();
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activity.getSupportFragmentManager().beginTransaction().add(fragment, "").commitNow();
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assertThat(fragment.onAttachContextContext).isNotNull();
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assertThat(fragment.onAttachActivityContext).isNotNull();
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}
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// Tests the behavior when using the useFragmentGetContextFix flag.
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@Test
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public void testGetContextReturnsNullAfterRemoval() throws Exception {
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FragmentActivity activity = Robolectric.setupActivity(TestActivity.class);
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TestFragment fragment = new TestFragment();
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activity.getSupportFragmentManager().beginTransaction().add(fragment, "").commitNow();
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assertThat(fragment.getContext()).isNotNull();
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activity.getSupportFragmentManager().beginTransaction().remove(fragment).commitNow();
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// This should be null since the fix was enabled by the compiler flag and runtime flag
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assertThat(fragment.getContext()).isNull();
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// Flip the flag so that we now disable the fix
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disableGetContextFix = true;
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TestFragment fragment2 = new TestFragment();
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activity.getSupportFragmentManager().beginTransaction().add(fragment2, "").commitNow();
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assertThat(fragment2.getContext()).isNotNull();
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activity.getSupportFragmentManager().beginTransaction().remove(fragment2).commitNow();
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// This should not be null since the fix was disabled by the runtime flag
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assertThat(fragment2.getContext()).isNotNull();
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}
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}
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