From 1321c90186706309ed0fda78858a2a15b7a521a9 Mon Sep 17 00:00:00 2001
From: 3gg <3gg@shellblade.net>
Date: Mon, 16 Sep 2024 08:25:54 -0700
Subject: Make test its own library.
---
test/CMakeLists.txt | 13 +++
test/test.h | 248 ++++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 261 insertions(+)
create mode 100644 test/CMakeLists.txt
create mode 100644 test/test.h
(limited to 'test')
diff --git a/test/CMakeLists.txt b/test/CMakeLists.txt
new file mode 100644
index 0000000..102568c
--- /dev/null
+++ b/test/CMakeLists.txt
@@ -0,0 +1,13 @@
+cmake_minimum_required(VERSION 3.0)
+
+project(test)
+
+set(CMAKE_CXX_STANDARD 20)
+set(CMAKE_CXX_STANDARD_REQUIRED On)
+set(CMAKE_CXX_EXTENSIONS Off)
+
+add_library(test INTERFACE
+ test.h)
+
+target_include_directories(test INTERFACE
+ .)
diff --git a/test/test.h b/test/test.h
new file mode 100644
index 0000000..cdd2f05
--- /dev/null
+++ b/test/test.h
@@ -0,0 +1,248 @@
+// SPDX-License-Identifier: MIT
+#pragma once
+
+#ifdef UNIT_TEST
+
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#if defined(__DragonFly__) || defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || \
+ defined(__NetBSD__) || defined(__OpenBSD__)
+#define USE_SYSCTL_FOR_ARGS 1
+// clang-format off
+#include <sys/types.h>
+#include <sys/sysctl.h>
+// clang-format on
+#include <unistd.h> // getpid
+#endif
+
+struct test_file_metadata;
+
+struct test_failure {
+ bool present;
+ const char *message;
+ const char *file;
+ int line;
+ bool owned;
+};
+
+struct test_case_metadata {
+ void (*fn)(struct test_case_metadata *, struct test_file_metadata *);
+ struct test_failure failure;
+ const char *name;
+ struct test_case_metadata *next;
+};
+
+struct test_file_metadata {
+ bool registered;
+ const char *name;
+ struct test_file_metadata *next;
+ struct test_case_metadata *tests;
+};
+
+struct test_file_metadata __attribute__((weak)) * test_file_head;
+
+#define SET_FAILURE(_message, _owned) \
+ metadata->failure = (struct test_failure) { \
+ .present = true, \
+ .message = _message, \
+ .file = __FILE__, \
+ .line = __LINE__, \
+ .owned = _owned, \
+ }
+
+#define TEST_EQUAL(a, b) \
+ do { \
+ if ((a) != (b)) { \
+ SET_FAILURE(#a " != " #b, false); \
+ return; \
+ } \
+ } while (0)
+
+#define TEST_NOTEQUAL(a, b) \
+ do { \
+ if ((a) == (b)) { \
+ SET_FAILURE(#a " == " #b, false); \
+ return; \
+ } \
+ } while (0)
+
+#define TEST_TRUE(a) \
+ do { \
+ if (!(a)) { \
+ SET_FAILURE(#a " is not true", false); \
+ return; \
+ } \
+ } while (0)
+
+#define TEST_STREQUAL(a, b) \
+ do { \
+ if (strcmp(a, b) != 0) { \
+ const char *test_strequal__part2 = " != " #b; \
+ size_t test_strequal__len = \
+ strlen(a) + strlen(test_strequal__part2) + 3; \
+ char *test_strequal__buf = malloc(test_strequal__len); \
+ snprintf(test_strequal__buf, test_strequal__len, "\"%s\"%s", a, \
+ test_strequal__part2); \
+ SET_FAILURE(test_strequal__buf, true); \
+ return; \
+ } \
+ } while (0)
+
+#define TEST_STRNEQUAL(a, b, len) \
+ do { \
+ if (strncmp(a, b, len) != 0) { \
+ const char *test_strnequal__part2 = " != " #b; \
+ size_t test_strnequal__len2 = \
+ len + strlen(test_strnequal__part2) + 3; \
+ char *test_strnequal__buf = malloc(test_strnequal__len2); \
+ snprintf(test_strnequal__buf, test_strnequal__len2, \
+ "\"%.*s\"%s", (int)len, a, test_strnequal__part2); \
+ SET_FAILURE(test_strnequal__buf, true); \
+ return; \
+ } \
+ } while (0)
+
+#define TEST_STREQUAL3(str, expected, len) \
+ do { \
+ if (len != strlen(expected) || strncmp(str, expected, len) != 0) { \
+ const char *test_strequal3__part2 = " != " #expected; \
+ size_t test_strequal3__len2 = \
+ len + strlen(test_strequal3__part2) + 3; \
+ char *test_strequal3__buf = malloc(test_strequal3__len2); \
+ snprintf(test_strequal3__buf, test_strequal3__len2, \
+ "\"%.*s\"%s", (int)len, str, test_strequal3__part2); \
+ SET_FAILURE(test_strequal3__buf, 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##_name; \
+ static struct test_case_metadata __test_h_meta_##_name = { \
+ .fn = __test_h_##_name, \
+ .failure = {}, \
+ .name = #_name, \
+ .next = 0, \
+ }; \
+ static void __attribute__((constructor(101))) __test_h_##_name##_register(void) { \
+ __test_h_meta_##_name.next = __test_h_file##_name.tests; \
+ __test_h_file##_name.tests = &__test_h_meta_##_name; \
+ if (!__test_h_file##_name.registered) { \
+ __test_h_file##_name.name = __FILE__; \
+ __test_h_file##_name.next = test_file_head; \
+ test_file_head = &__test_h_file##_name; \
+ __test_h_file##_name.registered = true; \
+ } \
+ } \
+ static void __test_h_##_name( \
+ struct test_case_metadata *metadata __attribute__((unused)), \
+ struct test_file_metadata *file_metadata __attribute__((unused)))
+
+extern void __attribute__((weak)) (*test_h_unittest_setup)(void);
+/// Run defined tests, return true if all tests succeeds
+/// @param[out] tests_run if not NULL, set to whether tests were run
+static inline void __attribute__((constructor(102))) run_tests(void) {
+ bool should_run = false;
+#ifdef USE_SYSCTL_FOR_ARGS
+ int mib[] = {
+ CTL_KERN,
+#if defined(__NetBSD__) || defined(__OpenBSD__)
+ KERN_PROC_ARGS,
+ getpid(),
+ KERN_PROC_ARGV,
+#else
+ KERN_PROC,
+ KERN_PROC_ARGS,
+ getpid(),
+#endif
+ };
+ char *arg = NULL;
+ size_t arglen;
+ sysctl(mib, sizeof(mib) / sizeof(mib[0]), NULL, &arglen, NULL, 0);
+ arg = malloc(arglen);
+ sysctl(mib, sizeof(mib) / sizeof(mib[0]), arg, &arglen, NULL, 0);
+#else
+ FILE *cmdlinef = fopen("/proc/self/cmdline", "r");
+ char *arg = NULL;
+ int arglen;
+ fscanf(cmdlinef, "%ms%n", &arg, &arglen);
+ fclose(cmdlinef);
+#endif
+ for (char *pos = arg; pos < arg + arglen; pos += strlen(pos) + 1) {
+ if (strcmp(pos, "--unittest") == 0) {
+ should_run = true;
+ break;
+ }
+ }
+ free(arg);
+
+ if (!should_run) {
+ return;
+ }
+
+ if (&test_h_unittest_setup) {
+ test_h_unittest_setup();
+ }
+
+ 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);
+ if (j->failure.owned) {
+ free((char *)j->failure.message);
+ j->failure.message = NULL;
+ }
+ 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);
+ exit(failed == 0 ? EXIT_SUCCESS : EXIT_FAILURE);
+}
+
+#else
+
+#include <stdbool.h>
+
+#define TEST_CASE(name) static void __attribute__((unused)) __test_h_##name(void)
+
+#define TEST_EQUAL(a, b) \
+ (void)(a); \
+ (void)(b)
+#define TEST_NOTEQUAL(a, b) \
+ (void)(a); \
+ (void)(b)
+#define TEST_TRUE(a) (void)(a)
+#define TEST_STREQUAL(a, b) \
+ (void)(a); \
+ (void)(b)
+#define TEST_STRNEQUAL(a, b, len) \
+ (void)(a); \
+ (void)(b); \
+ (void)(len)
+#define TEST_STREQUAL3(str, expected, len) \
+ (void)(str); \
+ (void)(expected); \
+ (void)(len)
+#endif
--
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