1/*
2 * Copyright (C) 2010 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#define LOG_TAG "ObbFile_test"
18#include <androidfw/ObbFile.h>
19#include <utils/Log.h>
20#include <utils/RefBase.h>
21#include <utils/String8.h>
22
23#include <gtest/gtest.h>
24
25#include <sys/types.h>
26#include <sys/stat.h>
27#include <fcntl.h>
28#include <string.h>
29
30namespace android {
31
32#define TEST_FILENAME "/test.obb"
33
34class ObbFileTest : public testing::Test {
35protected:
36    sp<ObbFile> mObbFile;
37    char* mExternalStorage;
38    char* mFileName;
39
40    virtual void SetUp() {
41        mObbFile = new ObbFile();
42        mExternalStorage = getenv("EXTERNAL_STORAGE");
43
44        const int totalLen = strlen(mExternalStorage) + strlen(TEST_FILENAME) + 1;
45        mFileName = new char[totalLen];
46        snprintf(mFileName, totalLen, "%s%s", mExternalStorage, TEST_FILENAME);
47
48        int fd = ::open(mFileName, O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR);
49        if (fd < 0) {
50            FAIL() << "Couldn't create " << mFileName << " for tests";
51        }
52    }
53
54    virtual void TearDown() {
55    }
56};
57
58TEST_F(ObbFileTest, ReadFailure) {
59    EXPECT_FALSE(mObbFile->readFrom(-1))
60            << "No failure on invalid file descriptor";
61}
62
63TEST_F(ObbFileTest, WriteThenRead) {
64    const char* packageName = "com.example.obbfile";
65    const int32_t versionNum = 1;
66
67    mObbFile->setPackageName(String8(packageName));
68    mObbFile->setVersion(versionNum);
69#define SALT_SIZE 8
70    unsigned char salt[SALT_SIZE] = {0x01, 0x10, 0x55, 0xAA, 0xFF, 0x00, 0x5A, 0xA5};
71    EXPECT_TRUE(mObbFile->setSalt(salt, SALT_SIZE))
72            << "Salt should be successfully set";
73
74    EXPECT_TRUE(mObbFile->writeTo(mFileName))
75            << "couldn't write to fake .obb file";
76
77    mObbFile = new ObbFile();
78
79    EXPECT_TRUE(mObbFile->readFrom(mFileName))
80            << "couldn't read from fake .obb file";
81
82    EXPECT_EQ(versionNum, mObbFile->getVersion())
83            << "version didn't come out the same as it went in";
84    const char* currentPackageName = mObbFile->getPackageName().string();
85    EXPECT_STREQ(packageName, currentPackageName)
86            << "package name didn't come out the same as it went in";
87
88    size_t saltLen;
89    const unsigned char* newSalt = mObbFile->getSalt(&saltLen);
90
91    EXPECT_EQ(sizeof(salt), saltLen)
92            << "salt sizes were not the same";
93
94    for (int i = 0; i < sizeof(salt); i++) {
95        EXPECT_EQ(salt[i], newSalt[i])
96                << "salt character " << i << " should be equal";
97    }
98    EXPECT_TRUE(memcmp(newSalt, salt, sizeof(salt)) == 0)
99            << "salts should be the same";
100}
101
102}
103