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
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
|
#include <stdio.h>
#include <dirent.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/stat.h>
#include <sys/wait.h>
#include <sys/reboot.h>
#define FILENAME_BUFFER_SIZE 256
size_t read_command(int descriptor, char *command_buffer)
{
ssize_t bytes_read = 0;
size_t read_so_far = 0;
while ((bytes_read = read(descriptor, command_buffer + read_so_far, FILENAME_BUFFER_SIZE - read_so_far - 1)) > 0)
{
read_so_far += bytes_read;
if (read_so_far >= FILENAME_BUFFER_SIZE - 1)
{
break;
}
}
command_buffer[read_so_far] = 0;
return read_so_far;
}
enum status
{
status_success,
status_failure,
status_warning,
status_fatal
};
unsigned int make_path(char *destination, const char *directory, const char *filename, const char *extension)
{
unsigned int i = 0;
for (; i < FILENAME_BUFFER_SIZE; i++)
{
if (directory[i] == 0)
{
break;
}
destination[i] = directory[i];
}
for (int j = 0; i < FILENAME_BUFFER_SIZE; i++, j++)
{
if (filename[j] == 0)
{
break;
}
destination[i] = filename[j];
}
if (extension == NULL)
{
goto done;
}
for (int j = 0; i < FILENAME_BUFFER_SIZE; i++, j++)
{
if (extension[j] == 0)
{
break;
}
destination[i] = extension[j];
}
done:
destination[i] = 0;
return i;
}
enum status run_test(const char *file_entry_name)
{
printf("Running %s. ", file_entry_name);
char filename[FILENAME_BUFFER_SIZE];
char command_buffer[FILENAME_BUFFER_SIZE];
char file_buffer[256];
int pipe_ends[2];
if (pipe(pipe_ends) == -1)
{
perror("pipe");
return status_fatal;
}
make_path(filename, "./tests/", file_entry_name, NULL);
int child_pid = fork();
if (child_pid == -1)
{
return status_fatal;
}
else if (child_pid == 0)
{
close(STDIN_FILENO);
close(STDERR_FILENO);
close(pipe_ends[0]); // Close the read end.
if (dup2(pipe_ends[1], STDOUT_FILENO) == -1)
{
perror("dup2");
}
else
{
execl(filename, filename);
perror("execl");
}
close(STDOUT_FILENO);
close(pipe_ends[1]);
_exit(1);
}
else
{
close(pipe_ends[1]); // Close the write end.
read_command(pipe_ends[0], command_buffer);
close(pipe_ends[0]);
int wait_status = 0;
make_path(filename, "./expectations/", file_entry_name, ".txt");
FILE *expectation_descriptor = fopen(filename, "r");
if (expectation_descriptor == NULL)
{
return status_warning;
}
size_t read_from_file = fread(file_buffer, 1, sizeof(file_buffer) - 1, expectation_descriptor);
fclose(expectation_descriptor);
file_buffer[read_from_file] = 0;
for (unsigned int i = 0; ; ++i)
{
if (command_buffer[i] == 0 && file_buffer[i] == 0)
{
fwrite("\n", 1, 1, stdout);
return status_success;
}
else if (command_buffer[i] != file_buffer[i])
{
printf("Failed. Got:\n%s", command_buffer);
return status_failure;
}
}
}
}
struct summary
{
size_t total;
size_t failure;
size_t success;
};
void walk()
{
DIR *directory_stream = opendir("./tests");
struct dirent *file_entry;
struct summary test_summary = { .total = 0, .failure = 0, .success = 0 };
while ((file_entry = readdir(directory_stream)) != NULL)
{
if (file_entry->d_name[0] == '.')
{
continue;
}
++test_summary.total;
switch (run_test(file_entry->d_name))
{
case status_failure:
++test_summary.failure;
break;
case status_success:
++test_summary.success;
break;
case status_warning:
break;
case status_fatal:
goto end_walk;
}
}
printf("Successful: %lu, Failed: %lu, Total: %lu.\n",
test_summary.success, test_summary.failure, test_summary.total);
end_walk:
closedir(directory_stream);
}
int main()
{
int dev_console = open("/dev/console", O_WRONLY);
if (dev_console != -1)
{
dup2(dev_console, STDOUT_FILENO);
walk();
close(dev_console);
}
sync();
reboot(RB_POWER_OFF);
return 1;
}
|
