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/*
* 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 com.android.textclassifier.testing;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.ArgumentMatchers.anyInt;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;
import android.content.ComponentName;
import android.content.Context;
import android.content.ContextWrapper;
import android.content.Intent;
import android.content.pm.ActivityInfo;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import androidx.test.core.app.ApplicationProvider;
import com.google.common.base.Preconditions;
import com.google.errorprone.annotations.CanIgnoreReturnValue;
import java.util.HashMap;
import java.util.Map;
import java.util.UUID;
import javax.annotation.Nullable;
import org.mockito.stubbing.Answer;
/** A builder used to build a fake context for testing. */
public final class FakeContextBuilder {
/** A component name that can be used for tests. */
public static final ComponentName DEFAULT_COMPONENT = new ComponentName("pkg", "cls");
private final PackageManager packageManager;
private final ContextWrapper context;
private final Map<String, ComponentName> components = new HashMap<>();
private final Map<String, CharSequence> appLabels = new HashMap<>();
@Nullable private ComponentName allIntentComponent;
public FakeContextBuilder() {
packageManager = mock(PackageManager.class);
when(packageManager.resolveActivity(any(Intent.class), anyInt())).thenReturn(null);
context =
new ContextWrapper(ApplicationProvider.getApplicationContext()) {
@Override
public PackageManager getPackageManager() {
return packageManager;
}
};
}
/**
* Sets the component name of an activity to handle the specified intent action.
*
* <p><strong>NOTE: </strong>By default, no component is set to handle any intent.
*/
@CanIgnoreReturnValue
public FakeContextBuilder setIntentComponent(
String intentAction, @Nullable ComponentName component) {
Preconditions.checkNotNull(intentAction);
components.put(intentAction, component);
return this;
}
/** Sets the app label res for a specified package. */
@CanIgnoreReturnValue
public FakeContextBuilder setAppLabel(String packageName, @Nullable CharSequence appLabel) {
Preconditions.checkNotNull(packageName);
appLabels.put(packageName, appLabel);
return this;
}
/**
* Sets the component name of an activity to handle all intents.
*
* <p><strong>NOTE: </strong>By default, no component is set to handle any intent.
*/
@CanIgnoreReturnValue
public FakeContextBuilder setAllIntentComponent(@Nullable ComponentName component) {
allIntentComponent = component;
return this;
}
/** Builds and returns a fake context. */
public Context build() {
when(packageManager.resolveActivity(any(Intent.class), anyInt()))
.thenAnswer(
(Answer<ResolveInfo>)
invocation -> {
final String action = ((Intent) invocation.getArgument(0)).getAction();
final ComponentName component =
components.containsKey(action) ? components.get(action) : allIntentComponent;
return getResolveInfo(component);
});
when(packageManager.getApplicationLabel(any(ApplicationInfo.class)))
.thenAnswer(
(Answer<CharSequence>)
invocation -> {
ApplicationInfo applicationInfo = invocation.getArgument(0);
return appLabels.get(applicationInfo.packageName);
});
return context;
}
/** Returns a component name with random package and class names. */
public static ComponentName newComponent() {
return new ComponentName(UUID.randomUUID().toString(), UUID.randomUUID().toString());
}
private static ResolveInfo getResolveInfo(ComponentName component) {
final ResolveInfo info;
if (component == null) {
info = null;
} else {
// NOTE: If something breaks in TextClassifier because we expect more fields to be set
// in here, just add them.
info = new ResolveInfo();
info.activityInfo = new ActivityInfo();
info.activityInfo.packageName = component.getPackageName();
info.activityInfo.name = component.getClassName();
info.activityInfo.exported = true;
info.activityInfo.applicationInfo = new ApplicationInfo();
info.activityInfo.applicationInfo.packageName = component.getPackageName();
info.activityInfo.applicationInfo.icon = 0;
}
return info;
}
}
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