Merge changes I8c2d29be,Ibbc58c3e

am: 831196440e

Change-Id: I076e52cdf6e46f1df055de0bfe9583d72f3fd181

tests/cts/net/src/android/net/wifi/aware/cts/SingleDeviceTest.java

@@ -0,0 +1,308 @@
+/*
+ * 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 android.net.wifi.aware.cts;
+
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.net.wifi.WifiManager;
+import android.net.wifi.aware.AttachCallback;
+import android.net.wifi.aware.Characteristics;
+import android.net.wifi.aware.IdentityChangedListener;
+import android.net.wifi.aware.WifiAwareManager;
+import android.net.wifi.aware.WifiAwareSession;
+import android.test.AndroidTestCase;
+
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.TimeUnit;
+
+/**
+ * Wi-Fi Aware CTS test suite: single device testing. Performs tests on a single
+ * device to validate Wi-Fi Aware.
+ */
+public class SingleDeviceTest extends AndroidTestCase {
+    private static final String TAG = "WifiAwareCtsTests";
+
+    // wait for Wi-Fi Aware to become available
+    static private final int WAIT_FOR_AWARE_CHANGE_SECS = 10;
+
+    private final Object mLock = new Object();
+
+    private WifiAwareManager mWifiAwareManager;
+    private WifiManager mWifiManager;
+    private WifiManager.WifiLock mWifiLock;
+
+    // used to store any WifiAwareSession allocated during tests - will clean-up after tests
+    private List<WifiAwareSession> mSessions = new ArrayList<>();
+
+    private class WifiAwareBroadcastReceiver extends BroadcastReceiver {
+        private CountDownLatch mBlocker = new CountDownLatch(1);
+
+        @Override
+        public void onReceive(Context context, Intent intent) {
+            if (WifiAwareManager.ACTION_WIFI_AWARE_STATE_CHANGED.equals(intent.getAction())) {
+                mBlocker.countDown();
+            }
+        }
+
+        boolean waitForStateChange() throws InterruptedException {
+            return mBlocker.await(WAIT_FOR_AWARE_CHANGE_SECS, TimeUnit.SECONDS);
+        }
+    };
+
+    private class AttachCallbackTest extends AttachCallback {
+        static final int ATTACHED = 0;
+        static final int ATTACH_FAILED = 1;
+        static final int ERROR = 2; // no callback: timeout, interruption
+
+        private CountDownLatch mBlocker = new CountDownLatch(1);
+        private int mCallbackCalled = ERROR; // garbage init
+        private WifiAwareSession mSession = null;
+
+        @Override
+        public void onAttached(WifiAwareSession session) {
+            mCallbackCalled = ATTACHED;
+            mSession = session;
+            synchronized (mLock) {
+                mSessions.add(session);
+            }
+            mBlocker.countDown();
+        }
+
+        @Override
+        public void onAttachFailed() {
+            mCallbackCalled = ATTACH_FAILED;
+            mBlocker.countDown();
+        }
+
+        /**
+         * Waits for any of the callbacks to be called - or an error (timeout, interruption).
+         * Returns one of the ATTACHED, ATTACH_FAILED, or ERROR values.
+         */
+        int waitForAnyCallback() {
+            try {
+                boolean noTimeout = mBlocker.await(WAIT_FOR_AWARE_CHANGE_SECS, TimeUnit.SECONDS);
+                if (noTimeout) {
+                    return mCallbackCalled;
+                } else {
+                    return ERROR;
+                }
+            } catch (InterruptedException e) {
+                return ERROR;
+            }
+        }
+
+        /**
+         * Access the session created by a callback. Only useful to be called after calling
+         * waitForAnyCallback() and getting the ATTACHED code back.
+         */
+        WifiAwareSession getSession() {
+            return mSession;
+        }
+    }
+
+    private class IdentityChangedListenerTest extends IdentityChangedListener {
+        private CountDownLatch mBlocker = new CountDownLatch(1);
+        private byte[] mMac = null;
+
+        @Override
+        public void onIdentityChanged(byte[] mac) {
+            mMac = mac;
+            mBlocker.countDown();
+        }
+
+        /**
+         * Waits for the listener callback to be called - or an error (timeout, interruption).
+         * Returns true on callback called, false on error (timeout, interruption).
+         */
+        boolean waitForListener() {
+            try {
+                return mBlocker.await(WAIT_FOR_AWARE_CHANGE_SECS, TimeUnit.SECONDS);
+            } catch (InterruptedException e) {
+                return false;
+            }
+        }
+
+        /**
+         * Returns the MAC address of the discovery interface supplied to the triggered callback.
+         */
+        byte[] getMac() {
+            return mMac;
+        }
+    }
+
+    @Override
+    protected void setUp() throws Exception {
+        super.setUp();
+
+        if (!TestUtils.shouldTestWifiAware(getContext())) {
+            return;
+        }
+
+        mWifiAwareManager = (WifiAwareManager) getContext().getSystemService(
+                Context.WIFI_AWARE_SERVICE);
+        assertNotNull("Wi-Fi Aware Manager", mWifiAwareManager);
+
+        mWifiManager = (WifiManager) getContext().getSystemService(Context.WIFI_SERVICE);
+        assertNotNull("Wi-Fi Manager", mWifiManager);
+        mWifiLock = mWifiManager.createWifiLock(TAG);
+        mWifiLock.acquire();
+        if (!mWifiManager.isWifiEnabled()) {
+            mWifiManager.setWifiEnabled(true);
+        }
+
+        IntentFilter intentFilter = new IntentFilter();
+        intentFilter.addAction(WifiAwareManager.ACTION_WIFI_AWARE_STATE_CHANGED);
+        WifiAwareBroadcastReceiver receiver = new WifiAwareBroadcastReceiver();
+        mContext.registerReceiver(receiver, intentFilter);
+        if (!mWifiAwareManager.isAvailable()) {
+            assertTrue("Timeout waiting for Wi-Fi Aware to change status",
+                    receiver.waitForStateChange());
+            assertTrue("Wi-Fi Aware is not available (should be)", mWifiAwareManager.isAvailable());
+        }
+    }
+
+    @Override
+    protected void tearDown() throws Exception {
+        if (!TestUtils.shouldTestWifiAware(getContext())) {
+            super.tearDown();
+            return;
+        }
+
+        synchronized (mLock) {
+            for (WifiAwareSession session : mSessions) {
+                // no damage from destroying twice (i.e. ok if test cleaned up after itself already)
+                session.destroy();
+            }
+            mSessions.clear();
+        }
+
+        super.tearDown();
+    }
+
+    /**
+     * Validate:
+     * - Characteristics are available
+     * - Characteristics values are legitimate. Not in the CDD. However, the tested values are
+     *   based on the Wi-Fi Aware protocol.
+     */
+    public void testCharacteristics() {
+        if (!TestUtils.shouldTestWifiAware(getContext())) {
+            return;
+        }
+
+        Characteristics characteristics = mWifiAwareManager.getCharacteristics();
+        assertNotNull("Wi-Fi Aware characteristics are null", characteristics);
+        assertEquals("Service Name Length", characteristics.getMaxServiceNameLength(), 255);
+        assertEquals("Service Specific Information Length",
+                characteristics.getMaxServiceSpecificInfoLength(), 255);
+        assertEquals("Match Filter Length", characteristics.getMaxMatchFilterLength(), 255);
+    }
+
+    /**
+     * Validate that on Wi-Fi Aware availability change we get a broadcast + the API returns
+     * correct status.
+     */
+    public void testAvailabilityStatusChange() throws Exception {
+        if (!TestUtils.shouldTestWifiAware(getContext())) {
+            return;
+        }
+
+        IntentFilter intentFilter = new IntentFilter();
+        intentFilter.addAction(WifiAwareManager.ACTION_WIFI_AWARE_STATE_CHANGED);
+
+        // 1. Disable Wi-Fi
+        WifiAwareBroadcastReceiver receiver1 = new WifiAwareBroadcastReceiver();
+        mContext.registerReceiver(receiver1, intentFilter);
+        mWifiManager.setWifiEnabled(false);
+
+        assertTrue("Timeout waiting for Wi-Fi Aware to change status",
+                receiver1.waitForStateChange());
+        assertFalse("Wi-Fi Aware is available (should not be)", mWifiAwareManager.isAvailable());
+
+        // 2. Enable Wi-Fi
+        WifiAwareBroadcastReceiver receiver2 = new WifiAwareBroadcastReceiver();
+        mContext.registerReceiver(receiver2, intentFilter);
+        mWifiManager.setWifiEnabled(true);
+
+        assertTrue("Timeout waiting for Wi-Fi Aware to change status",
+                receiver2.waitForStateChange());
+        assertTrue("Wi-Fi Aware is not available (should be)", mWifiAwareManager.isAvailable());
+    }
+
+    /**
+     * Validate that can attach to Wi-Fi Aware.
+     */
+    public void testAttachNoIdentity() {
+        if (!TestUtils.shouldTestWifiAware(getContext())) {
+            return;
+        }
+
+        AttachCallbackTest attachCb = new AttachCallbackTest();
+        mWifiAwareManager.attach(attachCb, null);
+        int cbCalled = attachCb.waitForAnyCallback();
+        assertEquals("Wi-Fi Aware attach", AttachCallbackTest.ATTACHED, cbCalled);
+
+        WifiAwareSession session = attachCb.getSession();
+        assertNotNull("Wi-Fi Aware session", session);
+
+        session.destroy();
+    }
+
+    /**
+     * Validate that can attach to Wi-Fi Aware and get identity information. Use the identity
+     * information to validate that MAC address changes on every attach.
+     *
+     * Note: relies on no other entity using Wi-Fi Aware during the CTS test. Since if it is used
+     * then the attach/destroy will not correspond to enable/disable and will not result in a new
+     * MAC address being generated.
+     */
+    public void testAttachDiscoveryAddressChanges() {
+        if (!TestUtils.shouldTestWifiAware(getContext())) {
+            return;
+        }
+
+        final int numIterations = 10;
+        Set<TestUtils.MacWrapper> macs = new HashSet<>();
+
+        for (int i = 0; i < numIterations; ++i) {
+            AttachCallbackTest attachCb = new AttachCallbackTest();
+            IdentityChangedListenerTest identityL = new IdentityChangedListenerTest();
+            mWifiAwareManager.attach(attachCb, identityL, null);
+            assertEquals("Wi-Fi Aware attach: iteration " + i, AttachCallbackTest.ATTACHED,
+                    attachCb.waitForAnyCallback());
+            assertTrue("Wi-Fi Aware attach: iteration " + i, identityL.waitForListener());
+
+            WifiAwareSession session = attachCb.getSession();
+            assertNotNull("Wi-Fi Aware session: iteration " + i, session);
+
+            byte[] mac = identityL.getMac();
+            assertNotNull("Wi-Fi Aware discovery MAC: iteration " + i, mac);
+
+            session.destroy();
+
+            macs.add(new TestUtils.MacWrapper(mac));
+        }
+
+        assertEquals("", numIterations, macs.size());
+    }
+}

tests/cts/net/src/android/net/wifi/aware/cts/TestUtils.java

@@ -0,0 +1,69 @@
+/*
+ * 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 android.net.wifi.aware.cts;
+
+import android.content.Context;
+import android.content.pm.PackageManager;
+
+import java.util.Arrays;
+
+/**
+ * Test utilities for Wi-Fi Aware CTS test suite.
+ */
+class TestUtils {
+    static final String TAG = "WifiAwareCtsTests";
+
+    /**
+     * Returns a flag indicating whether or not Wi-Fi Aware should be tested. Wi-Fi Aware
+     * should be tested if the feature is supported on the current device.
+     */
+    static boolean shouldTestWifiAware(Context context) {
+        final PackageManager pm = context.getPackageManager();
+        return pm.hasSystemFeature(PackageManager.FEATURE_WIFI_AWARE);
+    }
+
+    /**
+     * Wraps a byte[] (MAC address representation). Intended to provide hash and equality operators
+     * so that the MAC address can be used in containers.
+     */
+    static class MacWrapper {
+        private byte[] mMac;
+
+        MacWrapper(byte[] mac) {
+            mMac = mac;
+        }
+
+        @Override
+        public boolean equals(Object o) {
+            if (this == o) {
+                return true;
+            }
+
+            if (!(o instanceof MacWrapper)) {
+                return false;
+            }
+
+            MacWrapper lhs = (MacWrapper) o;
+            return Arrays.equals(mMac, lhs.mMac);
+        }
+
+        @Override
+        public int hashCode() {
+            return Arrays.hashCode(mMac);
+        }
+    }
+}