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Print more information for test cases

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This commit is contained in:
Yuxuan Shui 2019-03-13 21:05:12 +00:00
parent 2e3d66d728
commit d0afc3eeb3
4 changed files with 96 additions and 39 deletions
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4
examples/trivial_tests/Makefile
View file

@ -2,7 +2,7 @@ all: normal unittest
# A normal binary, compiled without unit tests
normal: test_test1.c test_test2.c ../../test.h
gcc test_test1.c test_test2.c -I../../ -o $@
gcc -g test_test1.c test_test2.c -I../../ -o $@
# A binary to run unit tests
unittest: test_test1.c test_test2.c ../../test.h
gcc test_test1.c test_test2.c -DUNIT_TEST -I../../ -o $@
gcc -g test_test1.c test_test2.c -DUNIT_TEST -I../../ -o $@

8
examples/trivial_tests/test_test1.c
View file

@ -1,4 +1,5 @@
#include <stdio.h>
#include <stdbool.h>
#include "test.h"
int main() {
@ -8,6 +9,9 @@ int main() {
}
TEST_CASE(test1) {
printf("test1\n");
SHOULD_EQUAL(1, 0);
TEST_EQUAL(1, 0);
}
TEST_CASE(test2) {
TEST_TRUE(false);
}

1
examples/trivial_tests/test_test2.c
View file

@ -2,5 +2,4 @@
#include "test.h"
TEST_CASE(test2) {
printf("test2\n");
}

122
test.h
View file

@ -3,58 +3,112 @@
#ifdef UNIT_TEST
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
struct test_file_metadata;
struct test_failure {
bool present;
const char *message;
const char *file;
int line;
};
struct test_case_metadata {
void (*fn)(struct test_case_metadata *);
bool success;
void (*fn)(struct test_case_metadata *, struct test_file_metadata *);
struct test_failure failure;
const char *name;
struct test_case_metadata *next;
};
struct test_case_metadata __attribute__((weak)) *test_case_head;
struct test_file_metadata {
bool registered;
const char *name;
struct test_file_metadata *next;
struct test_case_metadata *tests;
};
static inline void report_failure(const char *message, const char *file, int line) {
fprintf(stderr, "Test failed, %s at %s:%d\n", message, file, line);
}
struct test_file_metadata __attribute__((weak)) * test_file_head;
#define SHOULD_EQUAL(a, b) do { \
if ((a) != (b)) { \
report_failure(#a " != " #b, __FILE__, __LINE__); \
metadata->success = false; \
return; \
} \
} while(0)
#define SET_FAILURE(_message) \
metadata->failure = (struct test_failure) { \
.message = _message, .file = __FILE__, .line = __LINE__, .present = true, \
}
#define TEST_CASE(name) \
static void __test_h_##name(struct test_case_metadata *); \
static void __attribute__((constructor)) __test_h_##name##_register(void) { \
struct test_case_metadata *t = malloc(sizeof(*t)); \
t->fn = __test_h_##name; \
t->next = test_case_head; \
test_case_head = t; \
} \
static void __test_h_##name(struct test_case_metadata *metadata)
#define TEST_EQUAL(a, b) \
do { \
if ((a) != (b)) { \
SET_FAILURE(#a " != " #b); \
return; \
} \
} while (0)
static inline void run_tests(void) {
struct test_case_metadata *i = test_case_head;
int failed = 0;
while(i) {
i->success = true;
i->fn(i);
if (!i->success) {
failed++;
#define TEST_TRUE(a) \
do { \
if (!(a)) { \
SET_FAILURE(#a " is not true"); \
return; \
} \
} while (0)
#define TEST_CASE(_name) \
static void __test_h_##_name(struct test_case_metadata *, \
struct test_file_metadata *); \
static struct test_file_metadata __test_h_file; \
static struct test_case_metadata __test_h_meta_##_name = { \
.name = #_name, \
.fn = __test_h_##_name, \
}; \
static void __attribute__((constructor)) __test_h_##_name##_register(void) { \
__test_h_meta_##_name.next = __test_h_file.tests; \
__test_h_file.tests = &__test_h_meta_##_name; \
if (!__test_h_file.registered) { \
__test_h_file.name = __FILE__; \
__test_h_file.next = test_file_head; \
test_file_head = &__test_h_file; \
__test_h_file.registered = true; \
} \
} \
static void __test_h_##_name(struct test_case_metadata *metadata, \
struct test_file_metadata *file_metadata)
/// Run defined tests, return true if all tests succeeds
static inline bool run_tests(void) {
struct test_file_metadata *i = test_file_head;
int failed = 0, success = 0;
while (i) {
fprintf(stderr, "Running tests from %s:\n", i->name);
struct test_case_metadata *j = i->tests;
while (j) {
fprintf(stderr, "\t%s ... ", j->name);
j->failure.present = false;
j->fn(j, i);
if (j->failure.present) {
fprintf(stderr, "failed (%s at %s:%d)\n", j->failure.message,
j->failure.file, j->failure.line);
failed++;
} else {
fprintf(stderr, "passed\n");
success++;
}
j = j->next;
}
fprintf(stderr, "\n");
i = i->next;
}
int total = failed + success;
fprintf(stderr, "Test results: passed %d/%d, failed %d/%d\n", success, total,
failed, total);
return failed == 0;
}
#else
#define TEST_CASE(name) \
static void __attribute__((unused)) __test_h_##name(void)
#define TEST_CASE(name) static void __attribute__((unused)) __test_h_##name(void)
#define SHOULD_EQUAL(a, b)
#define TEST_EQUAL(a, b)
#define TEST_TRUE(a)
#endif