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
SetUp()26 virtual void SetUp() {
27 const char *paths[] = {
28 "data/sample.json",
29 "bin/data/sample.json",
30 "../bin/data/sample.json",
31 "../../bin/data/sample.json",
32 "../../../bin/data/sample.json"
33 };
34 FILE* fp = 0;
35 for (size_t i = 0; i < sizeof(paths) / sizeof(paths[0]); i++) {
36 fp = fopen(paths[i], "rb");
37 if (fp) {
38 filename_ = paths[i];
39 break;
40 }
41 }
42 ASSERT_TRUE(fp != 0);
43
44 fseek(fp, 0, SEEK_END);
45 length_ = (size_t)ftell(fp);
46 fseek(fp, 0, SEEK_SET);
47 json_ = (char*)malloc(length_ + 1);
48 size_t readLength = fread(json_, 1, length_, fp);
49 json_[readLength] = '\0';
50 fclose(fp);
51 }
52
TearDown()53 virtual void TearDown() {
54 free(json_);
55 json_ = 0;
56 }
57
58 private:
59 FileStreamTest(const FileStreamTest&);
60 FileStreamTest& operator=(const FileStreamTest&);
61
62 protected:
63 const char* filename_;
64 char *json_;
65 size_t length_;
66 };
67
TEST_F(FileStreamTest,FileReadStream)68 TEST_F(FileStreamTest, FileReadStream) {
69 FILE *fp = fopen(filename_, "rb");
70 ASSERT_TRUE(fp != 0);
71 char buffer[65536];
72 FileReadStream s(fp, buffer, sizeof(buffer));
73
74 for (size_t i = 0; i < length_; i++) {
75 EXPECT_EQ(json_[i], s.Peek());
76 EXPECT_EQ(json_[i], s.Peek()); // 2nd time should be the same
77 EXPECT_EQ(json_[i], s.Take());
78 }
79
80 EXPECT_EQ(length_, s.Tell());
81 EXPECT_EQ('\0', s.Peek());
82
83 fclose(fp);
84 }
85
TEST_F(FileStreamTest,FileWriteStream)86 TEST_F(FileStreamTest, FileWriteStream) {
87 char filename[L_tmpnam];
88 FILE* fp = TempFile(filename);
89
90 char buffer[65536];
91 FileWriteStream os(fp, buffer, sizeof(buffer));
92 for (size_t i = 0; i < length_; i++)
93 os.Put(json_[i]);
94 os.Flush();
95 fclose(fp);
96
97 // Read it back to verify
98 fp = fopen(filename, "rb");
99 FileReadStream is(fp, buffer, sizeof(buffer));
100
101 for (size_t i = 0; i < length_; i++)
102 EXPECT_EQ(json_[i], is.Take());
103
104 EXPECT_EQ(length_, is.Tell());
105 fclose(fp);
106
107 //std::cout << filename << std::endl;
108 remove(filename);
109 }
110