1 // Tencent is pleased to support the open source community by making RapidJSON available.
2 //
3 // Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved.
4 //
5 // Licensed under the MIT License (the "License"); you may not use this file except
6 // in compliance with the License. You may obtain a copy of the License at
7 //
8 // http://opensource.org/licenses/MIT
9 //
10 // Unless required by applicable law or agreed to in writing, software distributed
11 // under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
12 // CONDITIONS OF ANY KIND, either express or implied. See the License for the
13 // specific language governing permissions and limitations under the License.
14
15 #include "unittest.h"
16 #include "rapidjson/filereadstream.h"
17 #include "rapidjson/filewritestream.h"
18 #include "rapidjson/encodedstream.h"
19
20 using namespace rapidjson;
21
22 class FileStreamTest : public ::testing::Test {
23 public:
FileStreamTest()24 FileStreamTest() : filename_(), json_(), length_() {}
25 virtual ~FileStreamTest();
26
SetUp()27 virtual void SetUp() {
28 const char *paths[] = {
29 "data/sample.json",
30 "bin/data/sample.json",
31 "../bin/data/sample.json",
32 "../../bin/data/sample.json",
33 "../../../bin/data/sample.json"
34 };
35 FILE* fp = 0;
36 for (size_t i = 0; i < sizeof(paths) / sizeof(paths[0]); i++) {
37 fp = fopen(paths[i], "rb");
38 if (fp) {
39 filename_ = paths[i];
40 break;
41 }
42 }
43 ASSERT_TRUE(fp != 0);
44
45 fseek(fp, 0, SEEK_END);
46 length_ = static_cast<size_t>(ftell(fp));
47 fseek(fp, 0, SEEK_SET);
48 json_ = static_cast<char*>(malloc(length_ + 1));
49 size_t readLength = fread(json_, 1, length_, fp);
50 json_[readLength] = '\0';
51 fclose(fp);
52 }
53
TearDown()54 virtual void TearDown() {
55 free(json_);
56 json_ = 0;
57 }
58
59 private:
60 FileStreamTest(const FileStreamTest&);
61 FileStreamTest& operator=(const FileStreamTest&);
62
63 protected:
64 const char* filename_;
65 char *json_;
66 size_t length_;
67 };
68
~FileStreamTest()69 FileStreamTest::~FileStreamTest() {}
70
TEST_F(FileStreamTest,FileReadStream)71 TEST_F(FileStreamTest, FileReadStream) {
72 FILE *fp = fopen(filename_, "rb");
73 ASSERT_TRUE(fp != 0);
74 char buffer[65536];
75 FileReadStream s(fp, buffer, sizeof(buffer));
76
77 for (size_t i = 0; i < length_; i++) {
78 EXPECT_EQ(json_[i], s.Peek());
79 EXPECT_EQ(json_[i], s.Peek()); // 2nd time should be the same
80 EXPECT_EQ(json_[i], s.Take());
81 }
82
83 EXPECT_EQ(length_, s.Tell());
84 EXPECT_EQ('\0', s.Peek());
85
86 fclose(fp);
87 }
88
TEST_F(FileStreamTest,FileWriteStream)89 TEST_F(FileStreamTest, FileWriteStream) {
90 char filename[L_tmpnam];
91 FILE* fp = TempFile(filename);
92
93 char buffer[65536];
94 FileWriteStream os(fp, buffer, sizeof(buffer));
95 for (size_t i = 0; i < length_; i++)
96 os.Put(json_[i]);
97 os.Flush();
98 fclose(fp);
99
100 // Read it back to verify
101 fp = fopen(filename, "rb");
102 FileReadStream is(fp, buffer, sizeof(buffer));
103
104 for (size_t i = 0; i < length_; i++)
105 EXPECT_EQ(json_[i], is.Take());
106
107 EXPECT_EQ(length_, is.Tell());
108 fclose(fp);
109
110 //std::cout << filename << std::endl;
111 remove(filename);
112 }
113