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#include <test.h>
#include <misc_lib.h>
#include <alloc.h>
#include <string_lib.h>
#include <getopt.h>
#include <sequence.h>
/* Test that we have a working version of getopt functionality, either
* system-provided or our own in libcfecompat. */
static Seq *CheckOpts(int argc, char **argv)
{
Seq *seq = SeqNew(3, free);
const struct option OPTIONS[] =
{
{"no-arg", no_argument, 0, 'n'},
{"opt-arg", optional_argument, 0, 'o'},
{"req-arg", required_argument, 0, 'r'},
{NULL, 0, 0, '\0'}
};
/* Reset optind to 1 in order to restart scanning of argv
* - getopt(3) – Linux Manual
*/
optind = 1;
int c;
while ((c = getopt_long(argc, argv, "no::r:", OPTIONS, NULL)) != -1)
{
switch (c)
{
case 'n': /* no argument */
SeqAppend(seq, xstrdup("none"));
break;
case 'o': /* optional argument */
if (OPTIONAL_ARGUMENT_IS_PRESENT)
{
SeqAppend(seq, xstrdup(optarg));
}
else
{
SeqAppend(seq, xstrdup("default"));
}
break;
case 'r': /* required argument */
SeqAppend(seq, xstrdup(optarg));
break;
default:
assert(false);
break;
}
}
return seq;
}
static void test_GET_OPTIONAL_ARGUMENT(void)
{
/* optional as middle option */
int argc1 = 6;
char *argv1[] =
{
"program",
"-n",
"-o", "foo",
"-r", "bar"
};
Seq *seq1 = CheckOpts(argc1, argv1);
assert_int_equal(SeqLength(seq1), 3);
assert_string_equal((char *) SeqAt(seq1, 0), "none");
assert_string_equal((char *) SeqAt(seq1, 1), "foo");
assert_string_equal((char *) SeqAt(seq1, 2), "bar");
SeqDestroy(seq1);
/* optional as last option */
int argc2 = 6;
char *argv2[] =
{
"program",
"-r", "bar",
"-n",
"-o", "foo"
};
Seq *seq2 = CheckOpts(argc2, argv2);
assert_int_equal(SeqLength(seq2), 3);
assert_string_equal((char *) SeqAt(seq2, 0), "bar");
assert_string_equal((char *) SeqAt(seq2, 1), "none");
assert_string_equal((char *) SeqAt(seq2, 2), "foo");
SeqDestroy(seq2);
/* optional as first option */
int argc3 = 6;
char *argv3[] =
{
"program",
"-o", "foo",
"-r", "bar",
"-n"
};
Seq *seq3 = CheckOpts(argc3, argv3);
assert_int_equal(SeqLength(seq3), 3);
assert_string_equal((char *) SeqAt(seq3, 0), "foo");
assert_string_equal((char *) SeqAt(seq3, 1), "bar");
assert_string_equal((char *) SeqAt(seq3, 2), "none");
SeqDestroy(seq3);
/* optional with no argument */
int argc4 = 5;
char *argv4[] =
{
"program",
"-n",
"-o",
"-r", "bar"
};
Seq *seq4 = CheckOpts(argc4, argv4);
assert_int_equal(SeqLength(seq4), 3);
assert_string_equal((char *) SeqAt(seq4, 0), "none");
assert_string_equal((char *) SeqAt(seq4, 1), "default");
assert_string_equal((char *) SeqAt(seq4, 2), "bar");
SeqDestroy(seq4);
/* optional with argument immediately after */
int argc5 = 5;
char *argv5[] =
{
"program",
"-n",
"-ofoo",
"-r", "bar"
};
Seq *seq5 = CheckOpts(argc5, argv5);
assert_int_equal(SeqLength(seq5), 3);
assert_string_equal((char *) SeqAt(seq5, 0), "none");
assert_string_equal((char *) SeqAt(seq5, 1), "foo");
assert_string_equal((char *) SeqAt(seq5, 2), "bar");
SeqDestroy(seq5);
/* optional as only option with argument */
int argc6 = 3;
char *argv6[] =
{
"program",
"-o", "foo"
};
Seq *seq6 = CheckOpts(argc6, argv6);
assert_int_equal(SeqLength(seq6), 1);
assert_string_equal((char *) SeqAt(seq6, 0), "foo");
SeqDestroy(seq6);
/* optional as only option with argument immediately after */
int argc7 = 2;
char *argv7[] =
{
"program",
"-ofoo"
};
Seq *seq7 = CheckOpts(argc7, argv7);
assert_int_equal(SeqLength(seq7), 1);
assert_string_equal((char *) SeqAt(seq7, 0), "foo");
SeqDestroy(seq7);
/* optinal as only option with no argument */
int argc8 = 2;
char *argv8[] =
{
"program",
"-o"
};
Seq *seq8 = CheckOpts(argc8, argv8);
assert_int_equal(SeqLength(seq8), 1);
assert_string_equal((char *) SeqAt(seq8, 0), "default");
SeqDestroy(seq8);
}
int main()
{
srand48(time(NULL));
PRINT_TEST_BANNER();
const UnitTest tests[] =
{
unit_test(test_GET_OPTIONAL_ARGUMENT),
};
return run_tests(tests);
}
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