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#include <stdint.h>
#include <limits.h>
#define LS_TEST_IMPLEMENTATION
#include "ls_test.h"
int fail_alloc = 0;
void* test_realloc(void* p, size_t size) {
if (fail_alloc) {
return NULL;
}
return realloc(p, size);
}
/* this is also set in the Makefile because of the way this is built for tests.
* It requires a bit of magic because of the way we do things.
*/
#define LS_REALLOC test_realloc
#include "ls_args.h"
TEST_CASE(basic_args) {
int help = 0;
int test = 0;
int no = 0;
ls_args args;
char* argv[] = { "./hello", "-h", "--test", NULL };
int argc = sizeof(argv) / sizeof(*argv) - 1;
ls_args_init(&args);
ls_args_bool(&args, &help, "h", "help", "Provides help", 0);
ls_args_bool(&args, &test, "t", "test", "A test argument", 0);
ls_args_bool(&args, &no, "n", "nope", "An argument that isn't present", 0);
if (!ls_args_parse(&args, argc, argv)) {
printf("Error: %s\n", args.last_error);
ASSERT(!"ls_args_parse failed");
}
ASSERT_EQ(help, 1, "%d");
ASSERT_EQ(test, 1, "%d");
ASSERT_EQ(no, 0, "%d");
ls_args_free(&args);
return 0;
}
TEST_CASE(basic_args_only_short) {
int help = 0;
int test = 0;
int no = 0;
ls_args args;
char* argv[] = { "./hello", "-h", "-t", NULL };
int argc = sizeof(argv) / sizeof(*argv) - 1;
ls_args_init(&args);
ls_args_bool(&args, &help, "h", NULL, "Provides help", 0);
ls_args_bool(&args, &test, "t", NULL, "A test argument", 0);
ls_args_bool(&args, &no, "n", NULL, "An argument that isn't present", 0);
if (!ls_args_parse(&args, argc, argv)) {
printf("Error: %s\n", args.last_error);
ASSERT(!"ls_args_parse failed");
}
ASSERT_EQ(help, 1, "%d");
ASSERT_EQ(test, 1, "%d");
ASSERT_EQ(no, 0, "%d");
ls_args_free(&args);
return 0;
}
TEST_CASE(basic_args_only_long) {
int help = 0;
int test = 0;
int no = 0;
ls_args args;
char* argv[] = { "./hello", "--help", "--test", NULL };
int argc = sizeof(argv) / sizeof(*argv) - 1;
ls_args_init(&args);
ls_args_bool(&args, &help, NULL, "help", "Provides help", 0);
ls_args_bool(&args, &test, NULL, "test", "A test argument", 0);
ls_args_bool(&args, &no, NULL, "nope", "An argument that isn't present", 0);
if (!ls_args_parse(&args, argc, argv)) {
printf("Error: %s\n", args.last_error);
ASSERT(!"ls_args_parse failed");
}
ASSERT_EQ(help, 1, "%d");
ASSERT_EQ(test, 1, "%d");
ASSERT_EQ(no, 0, "%d");
ls_args_free(&args);
return 0;
}
TEST_CASE(basic_args_short_combined) {
int help = 0;
int test = 0;
int no = 0;
ls_args args;
char* argv[] = { "./hello", "-ht", NULL };
int argc = sizeof(argv) / sizeof(*argv) - 1;
ls_args_init(&args);
ls_args_bool(&args, &help, "h", "help", "Provides help", 0);
ls_args_bool(&args, &test, "t", "test", "A test argument", 0);
ls_args_bool(&args, &no, "n", "nope", "An argument that isn't present", 0);
if (!ls_args_parse(&args, argc, argv)) {
printf("Error: %s\n", args.last_error);
ASSERT(!"ls_args_parse failed");
}
ASSERT_EQ(help, 1, "%d");
ASSERT_EQ(test, 1, "%d");
ASSERT_EQ(no, 0, "%d");
ls_args_free(&args);
return 0;
}
TEST_CASE(error_invalid_argument) {
int help = 0;
ls_args args;
char* argv[] = { "./hello", "-h", "--test", NULL };
int argc = sizeof(argv) / sizeof(*argv) - 1;
ls_args_init(&args);
ls_args_bool(&args, &help, "h", "help", "Provides help", 0);
ASSERT(!ls_args_parse(&args, argc, argv));
ASSERT(strcmp(args.last_error, "Invalid argument '--test'") == 0);
ls_args_free(&args);
return 0;
}
TEST_CASE(error_expected_argument) {
const char* file = 0;
ls_args args;
int help;
char* argv[] = { "./hello", "--file", "--help", NULL };
int argc = sizeof(argv) / sizeof(*argv) - 1;
ls_args_init(&args);
ls_args_bool(&args, &help, "h", "help", "Provides help", 0);
ls_args_string(&args, &file, "f", "file", "File to work on", 0);
ASSERT(!ls_args_parse(&args, argc, argv));
ASSERT(strcmp(args.last_error, "Expected argument following '--file'") == 0);
ls_args_free(&args);
return 0;
}
TEST_CASE(error_expected_argument_last_arg) {
const char* file = 0;
ls_args args;
char* argv[] = { "./hello", "--file", NULL };
int argc = sizeof(argv) / sizeof(*argv) - 1;
ls_args_init(&args);
ls_args_string(&args, &file, "f", "file", "File to work on", 0);
ASSERT(!ls_args_parse(&args, argc, argv));
ASSERT(strcmp(args.last_error, "Expected argument following '--file'") == 0);
ls_args_free(&args);
return 0;
}
TEST_CASE(error_expected_argument_short_combined) {
const char* file = 0;
ls_args args;
int help;
char* argv[] = { "./hello", "-fh", NULL };
int argc = sizeof(argv) / sizeof(*argv) - 1;
ls_args_init(&args);
ls_args_bool(&args, &help, "h", "help", "Provides help", 0);
ls_args_string(&args, &file, "f", "file", "File to work on", 0);
ASSERT(!ls_args_parse(&args, argc, argv));
ASSERT(strcmp(args.last_error, "Expected argument following '-f', instead got another argument '-h'") == 0);
ls_args_free(&args);
return 0;
}
TEST_CASE(error_parse_fail) {
int help = 0;
ls_args args;
char* argv[] = { "./hello", "-", NULL };
int argc = sizeof(argv) / sizeof(*argv) - 1;
ls_args_init(&args);
ASSERT(!ls_args_parse(&args, argc, argv));
ASSERT(strcmp(args.last_error, "Invalid argument '-'") == 0);
ls_args_free(&args);
return 0;
}
TEST_CASE(overflow_args_cap) {
int help = 0;
int dummy = 0;
ls_args args;
int ret;
ls_args_init(&args);
/* First allocate one arg so the structure is properly initialized */
ret = ls_args_bool(&args, &dummy, "d", "dummy", "Dummy argument", 0);
ASSERT(ret);
/* can't have more elements, not even one, at this count */
args.args_len = SIZE_MAX / sizeof(ls_args_arg);
args.args_cap = SIZE_MAX / sizeof(ls_args_arg);
/* Try to add an argument, which should fail due to overflow */
ret = ls_args_bool(&args, &help, "h", "help", "Provides help", 0);
ASSERT(!ret);
ls_args_free(&args);
return 0;
}
TEST_CASE(strip_dashes) {
int help = 0;
int test = 0;
int no = 0;
ls_args args;
char* argv[] = { "./hello", "-h", "--test", NULL };
int argc = sizeof(argv) / sizeof(*argv) - 1;
ls_args_init(&args);
/* the dashes are optional */
ls_args_bool(&args, &help, "-h", "--help", "Provides help", 0);
/* you can mix them */
ls_args_bool(&args, &test, "t", "--test", "A test argument", 0);
/* have as many as you want */
ls_args_bool(&args, &no, "-n", "----nope", "An argument that isn't present", 0);
if (!ls_args_parse(&args, argc, argv)) {
printf("Error: %s\n", args.last_error);
ASSERT(!"ls_args_parse failed");
}
ASSERT_EQ(help, 1, "%d");
ASSERT_EQ(test, 1, "%d");
ASSERT_EQ(no, 0, "%d");
ls_args_free(&args);
return 0;
}
TEST_CASE(alloc_fail) {
int help = 0;
ls_args args;
char* argv[] = { "./hello", "-", NULL };
int argc = sizeof(argv) / sizeof(*argv) - 1;
int ret;
ls_args_init(&args);
ASSERT_EQ(args.args_len, 0, "%uz");
/* deliberately fail the allocation here */
fail_alloc = 1;
/* if the allocation fails, this fails */
ret = ls_args_bool(&args, &help, "h", "help", "Provides help", 0);
fail_alloc = 0;
ASSERT(!ret);
ASSERT(strcmp(args.last_error, "Allocation failure") == 0);
/* there is no documented error state for this; we simply fail to add the
* argument? */
ASSERT_EQ(args.args_len, 0, "%uz");
ls_args_free(&args);
return 0;
}
TEST_CASE(error_parse_fail_empty) {
int help = 0;
ls_args args;
char* argv[] = { "./hello", "", NULL };
int argc = sizeof(argv) / sizeof(*argv) - 1;
ls_args_init(&args);
ASSERT(!ls_args_parse(&args, argc, argv));
ASSERT(strcmp(args.last_error, "Invalid argument ''") == 0);
ls_args_free(&args);
return 0;
}
TEST_CASE(error_parse_ignore_double_dash) {
int help = 0;
ls_args args;
char* argv[] = { "./hello", "--", NULL };
int argc = sizeof(argv) / sizeof(*argv) - 1;
ls_args_init(&args);
ASSERT(ls_args_parse(&args, argc, argv));
ls_args_free(&args);
return 0;
}
TEST_CASE(error_invalid_argument_short) {
int help = 0;
ls_args args;
char* argv[] = { "./hello", "-h", "-t", "-h", NULL };
int argc = sizeof(argv) / sizeof(*argv) - 1;
ls_args_init(&args);
ls_args_bool(&args, &help, "h", "help", "Provides help", 0);
ASSERT(!ls_args_parse(&args, argc, argv));
ASSERT(strcmp(args.last_error, "Invalid argument '-t'") == 0);
ls_args_free(&args);
return 0;
}
TEST_CASE(string_args) {
const char* input = NULL;
const char* output = NULL;
int verbose = 0;
ls_args args;
char* argv[] = { "./program", "--input", "file.txt", "-o", "output.txt",
"-v", NULL };
int argc = sizeof(argv) / sizeof(*argv) - 1;
ls_args_init(&args);
ls_args_string(&args, &input, "i", "input", "Input file path", 0);
ls_args_string(&args, &output, "o", "output", "Output file path", 0);
ls_args_bool(&args, &verbose, "v", "verbose", "Verbose output", 0);
ASSERT(ls_args_parse(&args, argc, argv));
ASSERT(strcmp(input, "file.txt") == 0);
ASSERT(strcmp(output, "output.txt") == 0);
ASSERT_EQ(verbose, 1, "%d");
ls_args_free(&args);
return 0;
}
TEST_MAIN
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