1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
|
// (C) Copyright 2017, Google Inc.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include <iostream> // for cout
#include "include_gunit.h"
#include "scanutils.h"
namespace tesseract {
class ScanutilsTest : public ::testing::Test {
protected:
void SetUp() override {}
};
TEST_F(ScanutilsTest, DoesScanf) {
// This test verifies that tfscanf does Scanf the same as stdio fscanf.
// There are probably a gazillion more test cases that could be added, but
// these brought the tesseract and unittest test results in line.
std::string filename = file::JoinPath(TESTDATA_DIR, "scanftest.txt");
FILE *fp1 = fopen(filename.c_str(), "r");
if (fp1 == nullptr) {
std::cout << "Failed to open file " << filename << '\n';
GTEST_SKIP();
}
FILE *fp2 = fopen(filename.c_str(), "r");
if (fp2 == nullptr) {
std::cout << "Failed to open file " << filename << '\n';
fclose(fp1);
GTEST_SKIP();
}
// The file contains this:
// 42.5 17 0.001000 -0.001000
// 0 1 123 -123 0x100
// abcdefghijklmnopqrstuvwxyz
// abcdefghijklmnopqrstuvwxyz
// MF 25 6.25e-2 0.5e5 -1e+4
// 42 MF 25 6.25e-2 0.5
// 24
const int kNumFloats = 4;
float f1[kNumFloats], f2[kNumFloats];
int r1 = fscanf(fp1, "%f %f %f %f", &f1[0], &f1[1], &f1[2], &f1[3]);
int r2 = tfscanf(fp2, "%f %f %f %f", &f2[0], &f2[1], &f2[2], &f2[3]);
EXPECT_EQ(r1, kNumFloats);
EXPECT_EQ(r2, kNumFloats);
if (r1 == r2) {
for (int i = 0; i < r1; ++i) {
EXPECT_FLOAT_EQ(f1[i], f2[i]);
}
}
const int kNumInts = 5;
int i1[kNumInts], i2[kNumInts];
r1 = fscanf(fp1, "%d %d %d %d %i", &i1[0], &i1[1], &i1[2], &i1[3], &i1[4]);
r2 = tfscanf(fp2, "%d %d %d %d %i", &i2[0], &i2[1], &i2[2], &i2[3], &i2[4]);
EXPECT_EQ(r1, kNumInts);
EXPECT_EQ(r2, kNumInts);
if (r1 == r2) {
for (int i = 0; i < kNumInts; ++i) {
EXPECT_EQ(i1[i], i2[i]);
}
}
const int kStrLen = 1024;
char s1[kStrLen];
char s2[kStrLen];
r1 = fscanf(fp1, "%1023s", s1);
r2 = tfscanf(fp2, "%1023s", s2);
EXPECT_EQ(r1, r2);
EXPECT_STREQ(s1, s2);
EXPECT_EQ(26, strlen(s2));
r1 = fscanf(fp1, "%20s", s1);
r2 = tfscanf(fp2, "%20s", s2);
EXPECT_EQ(r1, r2);
EXPECT_STREQ(s1, s2);
EXPECT_EQ(20, strlen(s2));
// Now read the rest of the alphabet.
r1 = fscanf(fp1, "%1023s", s1);
r2 = tfscanf(fp2, "%1023s", s2);
EXPECT_EQ(r1, r2);
EXPECT_STREQ(s1, s2);
EXPECT_EQ(6, strlen(s2));
r1 = fscanf(fp1, "%1023s", s1);
r2 = tfscanf(fp2, "%1023s", s2);
EXPECT_EQ(r1, r2);
EXPECT_STREQ(s1, s2);
EXPECT_EQ(2, strlen(s2));
r1 = fscanf(fp1, "%f %f %f %f", &f1[0], &f1[1], &f1[2], &f1[3]);
r2 = tfscanf(fp2, "%f %f %f %f", &f2[0], &f2[1], &f2[2], &f2[3]);
EXPECT_EQ(r1, r2);
for (int i = 0; i < kNumFloats; ++i) {
EXPECT_FLOAT_EQ(f1[i], f2[i]);
}
// Test the * for field suppression.
r1 = fscanf(fp1, "%d %*s %*d %*f %*f", &i1[0]);
r2 = tfscanf(fp2, "%d %*s %*d %*f %*f", &i2[0]);
EXPECT_EQ(r1, r2);
EXPECT_EQ(i1[0], i2[0]);
// We should still see the next value and no phantoms.
r1 = fscanf(fp1, "%d %1023s", &i1[0], s1);
r2 = tfscanf(fp2, "%d %1023s", &i2[0], s2);
EXPECT_EQ(r1, r2);
EXPECT_EQ(1, r2);
EXPECT_EQ(i1[0], i2[0]);
fclose(fp2);
fclose(fp1);
}
} // namespace tesseract
|
