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 #include "TestHelpers.h"
18 
19 #include "ziparchive/zip_archive.h"
20 
21 using ::testing::AssertionFailure;
22 using ::testing::AssertionResult;
23 using ::testing::AssertionSuccess;
24 
25 namespace android {
26 
ReadFileFromZipToString(const std::string & zip_path,const std::string & file,std::string * out_contents)27 AssertionResult ReadFileFromZipToString(const std::string& zip_path, const std::string& file,
28                                         std::string* out_contents) {
29   out_contents->clear();
30   ::ZipArchiveHandle handle;
31   int32_t result = OpenArchive(zip_path.c_str(), &handle);
32   if (result != 0) {
33     return AssertionFailure() << "Failed to open zip '" << zip_path
34                               << "': " << ::ErrorCodeString(result);
35   }
36 
37   ::ZipString name(file.c_str());
38   ::ZipEntry entry;
39   result = ::FindEntry(handle, name, &entry);
40   if (result != 0) {
41     ::CloseArchive(handle);
42     return AssertionFailure() << "Could not find file '" << file << "' in zip '" << zip_path
43                               << "' : " << ::ErrorCodeString(result);
44   }
45 
46   out_contents->resize(entry.uncompressed_length);
47   result = ::ExtractToMemory(
48       handle, &entry, const_cast<uint8_t*>(reinterpret_cast<const uint8_t*>(out_contents->data())),
49       out_contents->size());
50   if (result != 0) {
51     ::CloseArchive(handle);
52     return AssertionFailure() << "Failed to extract file '" << file << "' from zip '" << zip_path
53                               << "': " << ::ErrorCodeString(result);
54   }
55 
56   ::CloseArchive(handle);
57   return AssertionSuccess();
58 }
59 
IsStringEqual(const ResTable & table,uint32_t resource_id,const char * expected_str)60 AssertionResult IsStringEqual(const ResTable& table, uint32_t resource_id,
61                               const char* expected_str) {
62   Res_value val;
63   ssize_t block = table.getResource(resource_id, &val, MAY_NOT_BE_BAG);
64   if (block < 0) {
65     return AssertionFailure() << "could not find resource";
66   }
67 
68   if (val.dataType != Res_value::TYPE_STRING) {
69     return AssertionFailure() << "resource is not a string";
70   }
71 
72   const ResStringPool* pool = table.getTableStringBlock(block);
73   if (pool == NULL) {
74     return AssertionFailure() << "table has no string pool for block " << block;
75   }
76 
77   const String8 actual_str = pool->string8ObjectAt(val.data);
78   if (String8(expected_str) != actual_str) {
79     return AssertionFailure() << actual_str.string();
80   }
81   return AssertionSuccess() << actual_str.string();
82 }
83 
84 }  // namespace android
85