content: /*
   * Copyright (C) 2013 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.volley.toolbox;
  
  import android.test.AndroidTestCase;
  
  import com.android.volley.Cache;
  import com.android.volley.toolbox.DiskBasedCache.CacheHeader;
  
  import java.io.ByteArrayInputStream;
  import java.io.ByteArrayOutputStream;
  import java.util.HashMap;
  import java.util.Map;
  
  public class DiskBasedCacheTest extends AndroidTestCase {
  
      // Simple end-to-end serialize/deserialize test.
      public void testCacheHeaderSerialization() throws Exception {
          Cache.Entry e = new Cache.Entry();
          e.data = new byte[8];
          e.serverDate = 1234567L;
          e.ttl = 9876543L;
          e.softTtl = 8765432L;
          e.etag = "etag";
          e.responseHeaders = new HashMap<String, String>();
          e.responseHeaders.put("fruit", "banana");
  
          CacheHeader first = new CacheHeader("my-magical-key", e);
          ByteArrayOutputStream baos = new ByteArrayOutputStream();
          first.writeHeader(baos);
          ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
          CacheHeader second = CacheHeader.readHeader(bais);
  
          assertEquals(first.key, second.key);
          assertEquals(first.serverDate, second.serverDate);
          assertEquals(first.ttl, second.ttl);
          assertEquals(first.softTtl, second.softTtl);
          assertEquals(first.etag, second.etag);
          assertEquals(first.responseHeaders, second.responseHeaders);
      }
  
      public void testSerializeInt() throws Exception {
          ByteArrayOutputStream baos = new ByteArrayOutputStream();
          DiskBasedCache.writeInt(baos, 0);
          DiskBasedCache.writeInt(baos, 19791214);
          DiskBasedCache.writeInt(baos, -20050711);
          DiskBasedCache.writeInt(baos, Integer.MIN_VALUE);
          DiskBasedCache.writeInt(baos, Integer.MAX_VALUE);
          ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
          assertEquals(DiskBasedCache.readInt(bais), 0);
          assertEquals(DiskBasedCache.readInt(bais), 19791214);
          assertEquals(DiskBasedCache.readInt(bais), -20050711);
          assertEquals(DiskBasedCache.readInt(bais), Integer.MIN_VALUE);
          assertEquals(DiskBasedCache.readInt(bais), Integer.MAX_VALUE);
      }
  
      public void testSerializeLong() throws Exception {
          ByteArrayOutputStream baos = new ByteArrayOutputStream();
          DiskBasedCache.writeLong(baos, 0);
          DiskBasedCache.writeLong(baos, 31337);
          DiskBasedCache.writeLong(baos, -4160);
          DiskBasedCache.writeLong(baos, 4295032832L);
          DiskBasedCache.writeLong(baos, -4314824046L);
          DiskBasedCache.writeLong(baos, Long.MIN_VALUE);
          DiskBasedCache.writeLong(baos, Long.MAX_VALUE);
          ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
          assertEquals(DiskBasedCache.readLong(bais), 0);
          assertEquals(DiskBasedCache.readLong(bais), 31337);
          assertEquals(DiskBasedCache.readLong(bais), -4160);
          assertEquals(DiskBasedCache.readLong(bais), 4295032832L);
          assertEquals(DiskBasedCache.readLong(bais), -4314824046L);
          assertEquals(DiskBasedCache.readLong(bais), Long.MIN_VALUE);
          assertEquals(DiskBasedCache.readLong(bais), Long.MAX_VALUE);
      }
  
      public void testSerializeString() throws Exception {
          ByteArrayOutputStream baos = new ByteArrayOutputStream();
          DiskBasedCache.writeString(baos, "");
          DiskBasedCache.writeString(baos, "This is a string.");
          DiskBasedCache.writeString(baos, "ファイカス");
          ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
          assertEquals(DiskBasedCache.readString(bais), "");
          assertEquals(DiskBasedCache.readString(bais), "This is a string.");
          assertEquals(DiskBasedCache.readString(bais), "ファイカス");
      }
  
      public void testSerializeMap() throws Exception {
          ByteArrayOutputStream baos = new ByteArrayOutputStream();
          Map<String, String> empty = new HashMap<String, String>();
          DiskBasedCache.writeStringStringMap(empty, baos);
          DiskBasedCache.writeStringStringMap(null, baos);
          Map<String, String> twoThings = new HashMap<String, String>();
          twoThings.put("first", "thing");
          twoThings.put("second", "item");
          DiskBasedCache.writeStringStringMap(twoThings, baos);
          Map<String, String> emptyKey = new HashMap<String, String>();
          emptyKey.put("", "value");
          DiskBasedCache.writeStringStringMap(emptyKey, baos);
          Map<String, String> emptyValue = new HashMap<String, String>();
          emptyValue.put("key", "");
          DiskBasedCache.writeStringStringMap(emptyValue, baos);
          ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
          assertEquals(DiskBasedCache.readStringStringMap(bais), empty);
          assertEquals(DiskBasedCache.readStringStringMap(bais), empty); // null reads back empty
          assertEquals(DiskBasedCache.readStringStringMap(bais), twoThings);
          assertEquals(DiskBasedCache.readStringStringMap(bais), emptyKey);
          assertEquals(DiskBasedCache.readStringStringMap(bais), emptyValue);
      }
  }
  