[AWARE] Initial CTS: availability API + broadcast

Initial CTS tests for Wi-Fi Aware:
- Add CTS test class for Wi-Fi Aware
- Setup/initialize
- Test the availablity API + broadcast

Bug: 30556108
Test: builds, CTS runs (test fails as expected)
Change-Id: Ibbc58c3ed7a9ad7312864d038fd34c7202222e82

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

@@ -0,0 +1,152 @@
+/*
+ * 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 static android.net.wifi.aware.cts.TestUtils.shouldTestWifiAware;
+
+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.Characteristics;
+import android.net.wifi.aware.WifiAwareManager;
+import android.test.AndroidTestCase;
+
+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 {
+    static private final String TAG = "WifiAwareCtsTests";
+
+    // wait for Wi-Fi Aware to become available
+    static private final int WAIT_FOR_AWARE_CHANGE_SECS = 10;
+
+    private WifiAwareManager mWifiAwareManager;
+    private WifiManager mWifiManager;
+    private WifiManager.WifiLock mWifiLock;
+
+    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);
+        }
+    };
+
+    @Override
+    protected void setUp() throws Exception {
+        super.setUp();
+
+        if (!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 (!shouldTestWifiAware(getContext())) {
+            super.tearDown();
+            return;
+        }
+
+        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 (!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 (!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());
+    }
+}

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

@@ -0,0 +1,36 @@
+/*
+ * 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;
+
+/**
+ * Test utilities for Wi-Fi Aware CTS test suite.
+ */
+public 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.
+     */
+    public static boolean shouldTestWifiAware(Context context) {
+        final PackageManager pm = context.getPackageManager();
+        return pm.hasSystemFeature(PackageManager.FEATURE_WIFI_AWARE);
+    }
+}