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Commit 80222a80 authored by Roshan Pius's avatar Roshan Pius
Browse files

WifiInfo: Add equals implementation 

This is needed for connectivity to compare TransportInfo instances.

(cherry-picked from aosp/1508601)

Bug: 162602799
Test: atest android.net.wifi
Change-Id: I215b769339f68b76a1b2fa15f66c4527d184b696
parent 36f802a0

wifi/java/android/net/wifi/WifiInfo.java

+93 −1
Original line number Diff line number Diff line
@@ -37,6 +37,7 @@ import java.net.InetAddress; 
import java.net.UnknownHostException;

import java.util.EnumMap;

import java.util.Locale;

import java.util.Objects;



/**

 * Describes the state of any Wi-Fi connection that is active or
@@ -51,7 +52,6 @@ import java.util.Locale; 
 * {@link #getPasspointProviderFriendlyName()} will return null.

 */

public class WifiInfo implements TransportInfo, Parcelable {

    // TODO(b/162602799): Implement equals/hahscode methods.

    private static final String TAG = "WifiInfo";

    /**

     * This is the map described in the Javadoc comment above. The positions
@@ -1182,4 +1182,96 @@ public class WifiInfo implements TransportInfo, Parcelable { 
    public @Nullable String getPasspointUniqueId() {

        return mPasspointUniqueId;

    }



    @Override

    public boolean equals(Object that) {

        if (this == that) return true;



        // Potential API behavior change, so don't change behavior on older devices.

        if (!SdkLevel.isAtLeastS()) return false;



        if (!(that instanceof WifiInfo)) return false;



        WifiInfo thatWifiInfo = (WifiInfo) that;

        return Objects.equals(mWifiSsid, thatWifiInfo.mWifiSsid)

                && Objects.equals(mBSSID, thatWifiInfo.mBSSID)

                && Objects.equals(mNetworkId, thatWifiInfo.mNetworkId)

                && Objects.equals(mRssi, thatWifiInfo.mRssi)

                && Objects.equals(mSupplicantState, thatWifiInfo.mSupplicantState)

                && Objects.equals(mLinkSpeed, thatWifiInfo.mLinkSpeed)

                && Objects.equals(mTxLinkSpeed, thatWifiInfo.mTxLinkSpeed)

                && Objects.equals(mRxLinkSpeed, thatWifiInfo.mRxLinkSpeed)

                && Objects.equals(mFrequency, thatWifiInfo.mFrequency)

                && Objects.equals(mIpAddress, thatWifiInfo.mIpAddress)

                && Objects.equals(mMacAddress, thatWifiInfo.mMacAddress)

                && Objects.equals(mMeteredHint, thatWifiInfo.mMeteredHint)

                && Objects.equals(mEphemeral, thatWifiInfo.mEphemeral)

                && Objects.equals(mTrusted, thatWifiInfo.mTrusted)

                && Objects.equals(mOemPaid, thatWifiInfo.mOemPaid)

                && Objects.equals(mOemPrivate, thatWifiInfo.mOemPrivate)

                && Objects.equals(mCarrierMerged, thatWifiInfo.mCarrierMerged)

                && Objects.equals(mRequestingPackageName, thatWifiInfo.mRequestingPackageName)

                && Objects.equals(mOsuAp, thatWifiInfo.mOsuAp)

                && Objects.equals(mFqdn, thatWifiInfo.mFqdn)

                && Objects.equals(mProviderFriendlyName, thatWifiInfo.mProviderFriendlyName)

                && Objects.equals(mSubscriptionId, thatWifiInfo.mSubscriptionId)

                && Objects.equals(txBad, thatWifiInfo.txBad)

                && Objects.equals(txRetries, thatWifiInfo.txRetries)

                && Objects.equals(txSuccess, thatWifiInfo.txSuccess)

                && Objects.equals(rxSuccess, thatWifiInfo.rxSuccess)

                && Objects.equals(mLostTxPacketsPerSecond, thatWifiInfo.mLostTxPacketsPerSecond)

                && Objects.equals(mTxRetriedTxPacketsPerSecond,

                thatWifiInfo.mTxRetriedTxPacketsPerSecond)

                && Objects.equals(mSuccessfulTxPacketsPerSecond,

                thatWifiInfo.mSuccessfulTxPacketsPerSecond)

                && Objects.equals(mSuccessfulRxPacketsPerSecond,

                thatWifiInfo.mSuccessfulRxPacketsPerSecond)

                && Objects.equals(score, thatWifiInfo.score)

                && Objects.equals(mWifiStandard, thatWifiInfo.mWifiStandard)

                && Objects.equals(mMaxSupportedTxLinkSpeed, thatWifiInfo.mMaxSupportedTxLinkSpeed)

                && Objects.equals(mMaxSupportedRxLinkSpeed, thatWifiInfo.mMaxSupportedRxLinkSpeed)

                && Objects.equals(mPasspointUniqueId, thatWifiInfo.mPasspointUniqueId);

    }



    @Override

    public int hashCode() {

        // Potential API behavior change, so don't change behavior on older devices.

        if (!SdkLevel.isAtLeastS()) return System.identityHashCode(this);



        return Objects.hash(mWifiSsid,

                mBSSID,

                mNetworkId,

                mRssi,

                mSupplicantState,

                mLinkSpeed,

                mTxLinkSpeed,

                mRxLinkSpeed,

                mFrequency,

                mIpAddress,

                mMacAddress,

                mMeteredHint,

                mEphemeral,

                mTrusted,

                mOemPaid,

                mOemPrivate,

                mCarrierMerged,

                mRequestingPackageName,

                mOsuAp,

                mFqdn,

                mProviderFriendlyName,

                mSubscriptionId,

                txBad,

                txRetries,

                txSuccess,

                rxSuccess,

                mLostTxPacketsPerSecond,

                mTxRetriedTxPacketsPerSecond,

                mSuccessfulTxPacketsPerSecond,

                mSuccessfulRxPacketsPerSecond,

                score,

                mWifiStandard,

                mMaxSupportedTxLinkSpeed,

                mMaxSupportedRxLinkSpeed,

                mPasspointUniqueId);

    }

}

wifi/tests/src/android/net/wifi/WifiInfoTest.java

+81 −0
Original line number Diff line number Diff line
@@ -18,6 +18,7 @@ package android.net.wifi; 


import static org.junit.Assert.assertEquals;

import static org.junit.Assert.assertFalse;

import static org.junit.Assert.assertNotEquals;

import static org.junit.Assert.assertNotNull;

import static org.junit.Assert.assertNotSame;

import static org.junit.Assert.assertTrue;
@@ -27,6 +28,8 @@ import android.telephony.SubscriptionManager; 


import androidx.test.filters.SmallTest;



import com.android.modules.utils.build.SdkLevel;



import org.junit.Test;



import java.nio.charset.StandardCharsets;
@@ -206,4 +209,82 @@ public class WifiInfoTest { 
        assertEquals(TEST_RSSI, info2.getRssi());

        assertEquals(TEST_NETWORK_ID2, info2.getNetworkId());

    }



    @Test

    public void testWifiInfoEquals() throws Exception {

        WifiInfo.Builder builder = new WifiInfo.Builder()

                .setSsid(TEST_SSID.getBytes(StandardCharsets.UTF_8))

                .setBssid(TEST_BSSID)

                .setRssi(TEST_RSSI)

                .setNetworkId(TEST_NETWORK_ID);



        WifiInfo info1 = builder.build();

        WifiInfo info2 = builder.build();

        if (SdkLevel.isAtLeastS()) {

            assertEquals(info1, info2);

        } else {

            assertNotEquals(info1, info2);

        }



        info1.setSubscriptionId(TEST_SUB_ID);

        // Same behavior pre-S & post-S.

        assertNotEquals(info1, info2);



        info2.setSubscriptionId(TEST_SUB_ID);

        if (SdkLevel.isAtLeastS()) {

            assertEquals(info1, info2);

        } else {

            assertNotEquals(info1, info2);

        }



        info1.setSSID(WifiSsid.createFromHex(null));

        // Same behavior pre-S & post-S.

        assertNotEquals(info1, info2);



        info2.setSSID(WifiSsid.createFromHex(null));

        if (SdkLevel.isAtLeastS()) {

            assertEquals(info1, info2);

        } else {

            assertNotEquals(info1, info2);

        }

    }



    @Test

    public void testWifiInfoHashcode() throws Exception {

        WifiInfo.Builder builder = new WifiInfo.Builder()

                .setSsid(TEST_SSID.getBytes(StandardCharsets.UTF_8))

                .setBssid(TEST_BSSID)

                .setRssi(TEST_RSSI)

                .setNetworkId(TEST_NETWORK_ID);



        WifiInfo info1 = builder.build();

        WifiInfo info2 = builder.build();

        if (SdkLevel.isAtLeastS()) {

            assertEquals(info1.hashCode(), info2.hashCode());

        } else {

            assertNotEquals(info1.hashCode(), info2.hashCode());

        }



        info1.setSubscriptionId(TEST_SUB_ID);

        // Same behavior pre-S & post-S.

        assertNotEquals(info1.hashCode(), info2.hashCode());



        info2.setSubscriptionId(TEST_SUB_ID);

        if (SdkLevel.isAtLeastS()) {

            assertEquals(info1.hashCode(), info2.hashCode());

        } else {

            assertNotEquals(info1.hashCode(), info2.hashCode());

        }



        info1.setSSID(WifiSsid.createFromHex(null));

        // Same behavior pre-S & post-S.

        assertNotEquals(info1.hashCode(), info2.hashCode());



        info2.setSSID(WifiSsid.createFromHex(null));

        if (SdkLevel.isAtLeastS()) {

            assertEquals(info1.hashCode(), info2.hashCode());

        } else {

            assertNotEquals(info1.hashCode(), info2.hashCode());

        }

    }

}