Subversion Repositories SmartDukaan

/*

 * 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 com.android.volley.Cache;

import com.android.volley.toolbox.DiskBasedCache.CacheHeader;

import org.junit.Test;

import java.io.ByteArrayInputStream;

import java.io.ByteArrayOutputStream;

import java.io.File;

import java.util.HashMap;

import java.util.Map;

import static org.junit.Assert.*;

public class DiskBasedCacheTest {

    // Simple end-to-end serialize/deserialize test.

    @Test public void cacheHeaderSerialization() throws Exception {

        Cache.Entry e = new Cache.Entry();

        e.data = new byte[8];

        e.serverDate = 1234567L;

        e.lastModified = 13572468L;

        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.lastModified, second.lastModified);

        assertEquals(first.ttl, second.ttl);

        assertEquals(first.softTtl, second.softTtl);

        assertEquals(first.etag, second.etag);

        assertEquals(first.responseHeaders, second.responseHeaders);

    }

    @Test public void serializeInt() 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);

    }

    @Test public void serializeLong() 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);

    }

    @Test public void serializeString() 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");

    }

    @Test public void serializeMap() 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);

    }

    @Test

    public void publicMethods() throws Exception {

        // Catch-all test to find API-breaking changes.

        assertNotNull(DiskBasedCache.class.getConstructor(File.class, int.class));

        assertNotNull(DiskBasedCache.class.getConstructor(File.class));

        assertNotNull(DiskBasedCache.class.getMethod("getFileForKey", String.class));

    }

}