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/*
* Copyright (C) 2017 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.settings.development;
import static org.mockito.Mockito.doReturn;
import static org.mockito.Mockito.spy;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;
import android.app.IActivityManager;
import android.content.Context;
import android.os.RemoteException;
import androidx.preference.ListPreference;
import androidx.preference.PreferenceScreen;
import com.android.settings.R;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;
import org.robolectric.RobolectricTestRunner;
import org.robolectric.RuntimeEnvironment;
@RunWith(RobolectricTestRunner.class)
public class BackgroundProcessLimitPreferenceControllerTest {
@Mock
private IActivityManager mActivityManager;
@Mock
private ListPreference mPreference;
@Mock
private PreferenceScreen mScreen;
/**
* 0: Standard limit
* 1: No Background processes
* 2: At most 1 process
* 3: At most 2 processes
* 4: At most 3 processes
* 5: At most 4 processes
*/
private String[] mListValues;
private String[] mListSummaries;
private Context mContext;
private BackgroundProcessLimitPreferenceController mController;
@Before
public void setup() {
MockitoAnnotations.initMocks(this);
mContext = RuntimeEnvironment.application;
mListValues = mContext.getResources().getStringArray(R.array.app_process_limit_values);
mListSummaries = mContext.getResources().getStringArray(R.array.app_process_limit_entries);
mController = spy(new BackgroundProcessLimitPreferenceController(mContext));
doReturn(mActivityManager).when(mController).getActivityManagerService();
when(mScreen.findPreference(mController.getPreferenceKey())).thenReturn(mPreference);
mController.displayPreference(mScreen);
}
@Test
public void onPreferenceChange_noBackgroundProcessSet_shouldSetToNoBackgroundProcess()
throws RemoteException {
mController.onPreferenceChange(mPreference, mListValues[1]);
verify(mActivityManager).setProcessLimit(Integer.valueOf(mListValues[1]));
}
@Test
public void onPreferenceChange_1ProcessSet_shouldSetTo1BackgroundProcess()
throws RemoteException {
mController.onPreferenceChange(mPreference, mListValues[2]);
verify(mActivityManager).setProcessLimit(Integer.valueOf(mListValues[2]));
}
@Test
public void updateState_noBackgroundProcessSet_shouldSetPreferenceToNoBackgroundProcess()
throws RemoteException {
when(mActivityManager.getProcessLimit()).thenReturn(Integer.valueOf(mListValues[1]));
mController.updateState(mPreference);
verify(mPreference).setValue(mListValues[1]);
verify(mPreference).setSummary(mListSummaries[1]);
}
@Test
public void updateState_1ProcessSet_shouldSetPreference1BackgroundProcess()
throws RemoteException {
when(mActivityManager.getProcessLimit()).thenReturn(Integer.valueOf(mListValues[2]));
mController.updateState(mPreference);
verify(mPreference).setValue(mListValues[2]);
verify(mPreference).setSummary(mListSummaries[2]);
}
@Test
public void updateState_veryHighLimit_shouldDefaultToStandardLimit() throws RemoteException {
when(mActivityManager.getProcessLimit()).thenReturn(Integer.MAX_VALUE);
mController.updateState(mPreference);
verify(mPreference).setValue(mListValues[0]);
verify(mPreference).setSummary(mListSummaries[0]);
}
@Test
public void onDeveloperOptionsSwitchDisabled_shouldDisableAndResetPreference()
throws RemoteException {
mController.onDeveloperOptionsSwitchDisabled();
verify(mPreference).setEnabled(false);
verify(mActivityManager).setProcessLimit(-1);
}
}
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