tests/robotests/src/com/android/settings/core/SliderPreferenceControllerTest.java

/*
 * 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.settings.core;

import static com.google.common.truth.Truth.assertThat;

import android.content.Context;
import androidx.preference.SeekBarPreference;

import com.android.settings.slices.SliceData;
import com.android.settings.testutils.SettingsRobolectricTestRunner;

import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.robolectric.RuntimeEnvironment;

@RunWith(SettingsRobolectricTestRunner.class)
public class SliderPreferenceControllerTest {

    private FakeSlider mSliderController;

    private Context mContext;
    private SeekBarPreference mPreference;

    @Before
    public void setUp() {
        mContext = RuntimeEnvironment.application;
        mPreference = new SeekBarPreference(mContext);
        mSliderController = new FakeSlider(mContext, "key");
    }

    @Test
    public void onPreferenceChange_updatesPosition() {
        final int newValue = 28;

        mSliderController.onPreferenceChange(mPreference, newValue);

        assertThat(mSliderController.getSliderPosition()).isEqualTo(newValue);
    }

    @Test
    public void updateState_setsPreferenceToCurrentValue() {
        final int newValue = 28;
        mSliderController.setSliderPosition(newValue);

        mSliderController.updateState(mPreference);

        assertThat(mPreference.getValue()).isEqualTo(newValue);
    }

    @Test
    public void testSliceType_returnsSliceType() {
        assertThat(mSliderController.getSliceType()).isEqualTo(
                SliceData.SliceType.SLIDER);
    }

    private class FakeSlider extends SliderPreferenceController {

        private final int MAX_STEPS = 2112;
        private int mPosition;

        public FakeSlider(Context context, String key) {
            super(context, key);
        }

        @Override
        public int getSliderPosition() {
            return mPosition;
        }

        @Override
        public boolean setSliderPosition(int position) {
            mPosition = position;
            return true;
        }

        @Override
        public int getMaxSteps() {
            return MAX_STEPS;
        }

        @Override
        public int getAvailabilityStatus() {
            return AVAILABLE;
        }
    }
}