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      1 /*
      2  * Copyright (C) 2016 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.server.wifi.hotspot2;
     18 
     19 import static org.junit.Assert.assertNotNull;
     20 import static org.junit.Assert.assertNull;
     21 import static org.junit.Assert.assertTrue;
     22 import static org.mockito.Mockito.when;
     23 import static org.mockito.MockitoAnnotations.initMocks;
     24 
     25 import android.support.test.filters.SmallTest;
     26 
     27 import com.android.server.wifi.Clock;
     28 import com.android.server.wifi.hotspot2.ANQPData;
     29 import com.android.server.wifi.hotspot2.AnqpCache;
     30 
     31 import org.junit.Before;
     32 import org.junit.Test;
     33 import org.mockito.Mock;
     34 
     35 /**
     36  * Unit tests for {@link com.android.server.wifi.hotspot2.AnqpCache}.
     37  *
     38  * TODO(b/33000864): add more test once the ANQP elements cleanup are completed, which will
     39  * allow easy construction of ANQP elements for testing.
     40  */
     41 @SmallTest
     42 public class AnqpCacheTest {
     43     private static final ANQPNetworkKey ENTRY_KEY = new ANQPNetworkKey("test", 0L, 0L, 1);
     44 
     45     @Mock Clock mClock;
     46     AnqpCache mCache;
     47 
     48     /**
     49      * Sets up test.
     50      */
     51     @Before
     52     public void setUp() throws Exception {
     53         initMocks(this);
     54         // Returning the initial timestamp.
     55         when(mClock.getElapsedSinceBootMillis()).thenReturn(0L);
     56         mCache = new AnqpCache(mClock);
     57     }
     58 
     59     /**
     60      * Verify expectation for addEntry and getEntry.
     61      *
     62      * @throws Exception
     63      */
     64     @Test
     65     public void addAndGetEntry() throws Exception {
     66         mCache.addEntry(ENTRY_KEY, null);
     67         ANQPData data = mCache.getEntry(ENTRY_KEY);
     68         assertNotNull(data);
     69         assertTrue(data.getElements().isEmpty());
     70     }
     71 
     72     /**
     73      * Verify that getting a non-existing entry will return a null.
     74      *
     75      * @throws Exception
     76      */
     77     @Test
     78     public void getNonExistEntry() throws Exception {
     79         assertNull(mCache.getEntry(ENTRY_KEY));
     80     }
     81 
     82     /**
     83      * Verify the expectation for the sweep function (expired entries will be removed).
     84      *
     85      * @throws Exception
     86      */
     87     @Test
     88     public void sweepRemoveExpiredEntry() throws Exception {
     89         mCache.addEntry(ENTRY_KEY, null);
     90 
     91         // Sweep the cache when the entry is not expired.
     92         when(mClock.getElapsedSinceBootMillis())
     93                 .thenReturn(AnqpCache.CACHE_SWEEP_INTERVAL_MILLISECONDS);
     94         mCache.sweep();
     95         assertNotNull(mCache.getEntry(ENTRY_KEY));
     96 
     97         // Sweep the cache when the entry is expired.
     98         when(mClock.getElapsedSinceBootMillis()).thenReturn(ANQPData.DATA_LIFETIME_MILLISECONDS);
     99         mCache.sweep();
    100         assertNull(mCache.getEntry(ENTRY_KEY));
    101     }
    102 }
    103