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_(), abcde_() {}
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 const char *abcde_paths[] = {
54 "data/abcde.txt",
55 "bin/data/abcde.txt",
56 "../bin/data/abcde.txt",
57 "../../bin/data/abcde.txt",
58 "../../../bin/data/abcde.txt"
59 };
60 fp = 0;
61 for (size_t i = 0; i < sizeof(abcde_paths) / sizeof(abcde_paths[0]); i++) {
62 fp = fopen(abcde_paths[i], "rb");
63 if (fp) {
64 abcde_ = abcde_paths[i];
65 break;
66 }
67 }
68 ASSERT_TRUE(fp != 0);
69 fclose(fp);
70 }
71
TearDown()72 virtual void TearDown() {
73 free(json_);
74 json_ = 0;
75 }
76
77 private:
78 FileStreamTest(const FileStreamTest&);
79 FileStreamTest& operator=(const FileStreamTest&);
80
81 protected:
82 const char* filename_;
83 char *json_;
84 size_t length_;
85 const char* abcde_;
86 };
87
~FileStreamTest()88 FileStreamTest::~FileStreamTest() {}
89
TEST_F(FileStreamTest,FileReadStream)90 TEST_F(FileStreamTest, FileReadStream) {
91 FILE *fp = fopen(filename_, "rb");
92 ASSERT_TRUE(fp != 0);
93 char buffer[65536];
94 FileReadStream s(fp, buffer, sizeof(buffer));
95
96 for (size_t i = 0; i < length_; i++) {
97 EXPECT_EQ(json_[i], s.Peek());
98 EXPECT_EQ(json_[i], s.Peek()); // 2nd time should be the same
99 EXPECT_EQ(json_[i], s.Take());
100 }
101
102 EXPECT_EQ(length_, s.Tell());
103 EXPECT_EQ('\0', s.Peek());
104
105 fclose(fp);
106 }
107
TEST_F(FileStreamTest,FileReadStream_Peek4)108 TEST_F(FileStreamTest, FileReadStream_Peek4) {
109 FILE *fp = fopen(abcde_, "rb");
110 ASSERT_TRUE(fp != 0);
111 char buffer[4];
112 FileReadStream s(fp, buffer, sizeof(buffer));
113
114 const char* c = s.Peek4();
115 for (int i = 0; i < 4; i++)
116 EXPECT_EQ('a' + i, c[i]);
117 EXPECT_EQ(0u, s.Tell());
118
119 for (int i = 0; i < 5; i++) {
120 EXPECT_EQ(static_cast<size_t>(i), s.Tell());
121 EXPECT_EQ('a' + i, s.Peek());
122 EXPECT_EQ('a' + i, s.Peek());
123 EXPECT_EQ('a' + i, s.Take());
124 }
125 EXPECT_EQ(5u, s.Tell());
126 EXPECT_EQ(0, s.Peek());
127 EXPECT_EQ(0, s.Take());
128
129 fclose(fp);
130 }
131
TEST_F(FileStreamTest,FileWriteStream)132 TEST_F(FileStreamTest, FileWriteStream) {
133 char filename[L_tmpnam];
134 FILE* fp = TempFile(filename);
135
136 char buffer[65536];
137 FileWriteStream os(fp, buffer, sizeof(buffer));
138 for (size_t i = 0; i < length_; i++)
139 os.Put(json_[i]);
140 os.Flush();
141 fclose(fp);
142
143 // Read it back to verify
144 fp = fopen(filename, "rb");
145 FileReadStream is(fp, buffer, sizeof(buffer));
146
147 for (size_t i = 0; i < length_; i++)
148 EXPECT_EQ(json_[i], is.Take());
149
150 EXPECT_EQ(length_, is.Tell());
151 fclose(fp);
152
153 //std::cout << filename << std::endl;
154 remove(filename);
155 }
156