From 99f90f5cb7637ece0358003d3d3355036e6d68f7 Mon Sep 17 00:00:00 2001
From: Sohani Rao <sohanirao@google.com>
Date: Fri, 17 Mar 2017 11:27:46 -0700
Subject: Unit tests for SupplicantStateTracker

Create unit test(s) for SupplicantStateTracker. Need to modify
constructor of the class for testability.

Change-Id: I5fb6a049ee09cb07e7d866abd9ed3b2b737f7a6e
Bug: 36485448
Test: Unit tests, Sanity (Power on, wifi On, connect to AP)
---
 .../server/wifi/SupplicantStateTrackerTest.java    | 102 +++++++++++++++++++++
 1 file changed, 102 insertions(+)
 create mode 100644 tests/wifitests/src/com/android/server/wifi/SupplicantStateTrackerTest.java

(limited to 'tests/wifitests')

diff --git a/tests/wifitests/src/com/android/server/wifi/SupplicantStateTrackerTest.java b/tests/wifitests/src/com/android/server/wifi/SupplicantStateTrackerTest.java
new file mode 100644
index 000000000..f1a9e945d
--- /dev/null
+++ b/tests/wifitests/src/com/android/server/wifi/SupplicantStateTrackerTest.java
@@ -0,0 +1,102 @@
+/*
+ * Copyright (C) 2016 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.server.wifi;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+import static org.mockito.Mockito.*;
+
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.net.wifi.SupplicantState;
+import android.net.wifi.WifiManager;
+import android.net.wifi.WifiSsid;
+import android.os.Handler;
+import android.os.Message;
+import android.os.test.TestLooper;
+
+import com.android.internal.app.IBatteryStats;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+/**
+ * Unit tests for {@link android.net.wifi.SupplicantStateTracker}.
+ */
+public class SupplicantStateTrackerTest {
+
+    private static final String TAG = "SupplicantStateTrackerTest";
+    private static final String   sSSID = "\"GoogleGuest\"";
+    private static final WifiSsid sWifiSsid = WifiSsid.createFromAsciiEncoded(sSSID);
+    private static final String   sBSSID = "01:02:03:04:05:06";
+
+    private @Mock WifiConfigManager mWcm;
+    private @Mock Context mContext;
+    private Handler mHandler;
+    private SupplicantStateTracker mSupplicantStateTracker;
+    private TestLooper mLooper;
+    private FrameworkFacade mFacade;
+    private BroadcastReceiver mWifiBroadcastReceiver;
+
+    private FrameworkFacade getFrameworkFacade() {
+        FrameworkFacade facade = mock(FrameworkFacade.class);
+        IBatteryStats batteryStatsService = mock(IBatteryStats.class);
+        when(facade.getBatteryService()).thenReturn(batteryStatsService);
+        return facade;
+    }
+
+    private Message getSupplicantStateChangeMessage(int networkId, WifiSsid wifiSsid,
+            String bssid, SupplicantState newSupplicantState) {
+        return Message.obtain(null, WifiMonitor.SUPPLICANT_STATE_CHANGE_EVENT, 0, 0,
+                new StateChangeResult(networkId, wifiSsid, bssid, newSupplicantState));
+
+    }
+
+    @Before
+    public void setUp() {
+        mLooper = new TestLooper();
+        mHandler = new Handler(mLooper.getLooper());
+        MockitoAnnotations.initMocks(this);
+        mFacade = getFrameworkFacade();
+        mSupplicantStateTracker = new SupplicantStateTracker(mContext, mWcm, mFacade, mHandler);
+    }
+
+    /**
+     * This test verifies that the SupplicantStateTracker sends a broadcast intent upon receiving
+     * a message when supplicant state changes
+     */
+    @Test
+    public void testSupplicantStateChangeIntent() {
+        mWifiBroadcastReceiver = new BroadcastReceiver() {
+            @Override
+            public void onReceive(Context context, Intent intent) {
+                String action = intent.getAction();
+                assertTrue(action.equals(WifiManager.SUPPLICANT_STATE_CHANGED_ACTION));
+                SupplicantState recvdState =
+                        (SupplicantState) intent.getExtra(WifiManager.EXTRA_NEW_STATE, -1);
+                assertEquals(SupplicantState.SCANNING, recvdState);
+            }
+        };
+        IntentFilter mIntentFilter = new IntentFilter();
+        mIntentFilter.addAction(WifiManager.SUPPLICANT_STATE_CHANGED_ACTION);
+        mContext.registerReceiver(mWifiBroadcastReceiver, mIntentFilter);
+        mSupplicantStateTracker.sendMessage(getSupplicantStateChangeMessage(0, sWifiSsid,
+                sBSSID, SupplicantState.SCANNING));
+    }
+}
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