tests/telephonytests/src/com/android/internal/telephony/RatRatcheterTest.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.internal.telephony;

import static junit.framework.Assert.assertFalse;
import static junit.framework.Assert.assertTrue;

import android.telephony.ServiceState;

import org.junit.Before;
import org.junit.Test;

import java.util.Arrays;

/** Tests for RatRatcheter. */
public class RatRatcheterTest {

    private ServiceState mServiceState;

    @Before
    public void setUp() {
        mServiceState = new ServiceState();
    }

    @Test
    public void testUpdateBandwidthsSuccess() {
        int[] bandwidths = new int[] {1400, 5000};
        mServiceState.setCellBandwidths(new int[] {5000});

        boolean updated = RatRatcheter.updateBandwidths(bandwidths, mServiceState);

        assertTrue(updated);
        assertTrue(Arrays.equals(mServiceState.getCellBandwidths(), bandwidths));
    }

    @Test
    public void testUpdateBandwidthsFailure() {
        int[] originalBandwidths = {5000, 10000};
        int[] newBandwidths = {1400, 5000};
        mServiceState.setCellBandwidths(originalBandwidths);

        boolean updated = RatRatcheter.updateBandwidths(newBandwidths, mServiceState);

        assertFalse(updated);
        assertTrue(Arrays.equals(mServiceState.getCellBandwidths(), originalBandwidths));
    }

    @Test
    public void testUpdateBandwidthsNull() {
        int[] originalBandwidths = {5000, 10000};
        mServiceState.setCellBandwidths(originalBandwidths);

        boolean updated = RatRatcheter.updateBandwidths(null, mServiceState);

        assertFalse(updated);
        assertTrue(Arrays.equals(mServiceState.getCellBandwidths(), originalBandwidths));
    }
}