refactor(test): use builtin meson test

meson.build

@@ -1,75 +1,80 @@
 project(
-  'testlib',
-  'c',
-  version: '0.2',
-  default_options: ['c_std=c18', 'warning_level=3'],
+    'testlib',
+    'c',
+    version: '0.3',
+    default_options: ['c_std=c18', 'warning_level=3'],
 )
 
-cc = meson.get_compiler('c')
-
 # Add global posix feature macro
+
 add_global_arguments('-D_POSIX_C_SOURCE=200112L', language: 'c')
 
 # Sources without test files
-lib_src = files(
-  'hashmap/myhashmap.c',
-  'queue/myqueue.c',
-  'set/myset.c',
-  'stack/mystack.c',
-  'string/mystring.c',
-  'vector/myvector.c',
-)
 
-# Test files
-test_src = files(
-  'test/hashmap/hm1.c',
-  'test/queue/queue1.c',
-  'test/set/set1.c',
-  'test/stack/stack1.c',
-  'test/string/str1.c',
-  'test/string/str2.c',
-  'test/string/str3.c',
-  'test/test.c',
-  'test/vector/vec1.c',
+lib_src = files(
+    'hashmap/myhashmap.c',
+    'queue/myqueue.c',
+    'set/myset.c',
+    'stack/mystack.c',
+    'string/mystring.c',
+    'vector/myvector.c',
 )
 
 # Include directories
+
 inc_dir = include_directories('string', 'queue', 'hashmap', 'vector', 'stack', 'set')
 if host_machine.system() == 'windows'
-  win_inc_dir = include_directories('c:/include/')
+    win_inc_dir = include_directories('c:/include/')
 else
-  win_inc_dir = []
+    win_inc_dir = []
 endif
 
 # Static library
+
 myclib_lib = static_library(
-  'myclib',
-  lib_src,
-  include_directories: inc_dir,
-  dependencies: winsock_dep,
-  install: true,
+    'myclib',
+    lib_src,
+    include_directories: inc_dir,
+    install: true,
 )
 
 # Install headers
+
 install_headers(
-  [
-    'hashmap/myhashmap.h',
-    'queue/myqueue.h',
-    'string/mystring.h',
-    'vector/myvector.h',
-    'set/myset.h',
-    'stack/mystack.h',
-  ],
-  subdir: 'myclib',
+    [
+        'hashmap/myhashmap.h',
+        'queue/myqueue.h',
+        'string/mystring.h',
+        'vector/myvector.h',
+        'set/myset.h',
+        'stack/mystack.h',
+    ],
+    subdir: 'myclib',
 )
 
-# Test executable
-testlib_exe = executable(
-  'testlib',
-  test_src,
-  include_directories: [inc_dir, win_inc_dir],
-  dependencies: winsock_dep,
-  link_with: myclib_lib,
-)
+# Per-file test registrations
 
-test('testlib', testlib_exe)
+test_cases = [
+    ['hashmap_hm1', 'test/hashmap/hm1.c'],
+    ['queue_queue1', 'test/queue/queue1.c'],
+    ['set_set1', 'test/set/set1.c'],
+    ['stack_stack1', 'test/stack/stack1.c'],
+    ['string_str1', 'test/string/str1.c'],
+    ['string_str2', 'test/string/str2.c'],
+    ['string_str3', 'test/string/str3.c'],
+    ['vector_vec1', 'test/vector/vec1.c'],
+]
+
+foreach tc : test_cases
+    test_name = tc[0]
+    test_source = tc[1]
+
+    test_exe = executable(
+        'test_' + test_name,
+        test_source,
+        include_directories: [inc_dir, win_inc_dir],
+        link_with: myclib_lib,
+    )
+
+    test(test_name, test_exe)
+endforeach

test/hashmap/hm1.c

@@ -48,7 +48,7 @@ void my_free_value(void *value) {
 	free(mct);
 }
 
-void test_hm1(void) {
+int main(void) {
 	/* Allocate a new hashmap */
 	/* Pass your custom hash, equal and free functions */
 	/* This hashmap will contain names as keys and a custom type as value */

test/queue/queue1.c

@@ -1,7 +1,7 @@
 #include "../queue/myqueue.h"
 #include <assert.h>
 
-void test_queue1(void) {
+int main(void) {
 	/* Allocate a new queue */
 	queue_s *queue = queue_new(3, sizeof(int));
 	assert(queue != NULL);

test/set/set1.c

@@ -2,7 +2,7 @@
 
 #include <assert.h>
 
-void test_set1(void) {
+int main(void) {
 	set_s *set = set_new(sizeof(int));
 	assert(set != NULL);
 

test/stack/stack1.c

@@ -2,7 +2,7 @@
 #include <assert.h>
 #include <stdlib.h>
 
-void test_stack1(void) {
+int main(void) {
 	stack_s *stack = stack_new(32, sizeof(int));
 	int num = 10;
 	stack_push(stack, &num);

test/string/str1.c

@@ -4,7 +4,7 @@
 #include <stdlib.h>
 #include <string.h>
 
-void test_str1(void) {
+int main(void) {
 	size_t length;
 	size_t capacity;
 	char *c_str;

test/string/str2.c

@@ -2,7 +2,7 @@
 #include <assert.h>
 #include <string.h>
 
-void test_str2(void) {
+int main(void) {
 	string_s *s1 = string_new("Hello, world!", 0);
 	assert(s1 != NULL);
 	string_s *s2 = string_new("Hello, world!", 0);
@@ -27,6 +27,21 @@ void test_str2(void) {
 	assert(string_len(s1) == 50);
 	assert(string_cap(s1) == 64);
 
+	/* Regression: when need == capacity, extend still needs room for '\0'. */
+	string_s *tight_dst = string_new("abc", 4);
+	string_s *tight_src = string_new("d", 0);
+	assert(tight_dst != NULL);
+	assert(tight_src != NULL);
+	assert(string_extend(tight_dst, tight_src) == 0);
+	assert(strcmp(string_cstr(tight_dst), "abcd") == 0);
+	assert(string_cap(tight_dst) >= 5);
+
+	/* Self-extend should be safe and deterministic. */
+	string_s *self = string_new("xy", 0);
+	assert(self != NULL);
+	assert(string_extend(self, self) == 0);
+	assert(strcmp(string_cstr(self), "xyxy") == 0);
+
 	/* Find substring in string */
 	int pos = string_find(s1, " is ");
 	assert(pos == 11);
@@ -34,4 +49,7 @@ void test_str2(void) {
 	string_free(s1);
 	string_free(s2);
 	string_free(extend_me);
+	string_free(tight_dst);
+	string_free(tight_src);
+	string_free(self);
 }

test/string/str3.c

@@ -2,7 +2,7 @@
 #include <assert.h>
 #include <string.h>
 
-void test_str3(void) {
+int main(void) {
 	/* Make a new string from format */
 	string_s *s = string_format("My name is %s (%d)", "John", 21);
 	assert(strcmp(s->data, "My name is John (21)") == 0);
@@ -16,6 +16,16 @@ void test_str3(void) {
 	/* Test delete */
 	string_remove(ms, 5, 5);
 	assert(strcmp(ms->data, "Hello!") == 0);
+	assert(string_remove(ms, string_len(ms), 1) == -1);
+
+	string_s *remove_mid = string_new("abcdef", 0);
+	assert(remove_mid != NULL);
+	assert(string_remove(remove_mid, 2, 2) == 0);
+	assert(strcmp(remove_mid->data, "abef") == 0);
+	assert(string_remove(remove_mid, 2, 2) == 0);
+	assert(strcmp(remove_mid->data, "ab") == 0);
+	assert(string_remove(remove_mid, 0, 2) == 0);
+	assert(strcmp(remove_mid->data, "") == 0);
 
 	/* Test replace */
 	string_s *replace_me = string_new("My car doesn't bark!", 0);
@@ -25,5 +35,6 @@ void test_str3(void) {
 
 	string_free(ms);
 	string_free(s);
+	string_free(remove_mid);
 	string_free(replace_me);
 }

test/test.c

@@ -1,56 +0,0 @@
-/**
- * Ignore this file
- */
-
-#include <assert.h>
-#include <stdio.h>
-
-void test_hm1(void);
-
-void test_queue1(void);
-
-void test_str1(void);
-void test_str2(void);
-void test_str3(void);
-
-void test_vec1(void);
-
-void test_stack1(void);
-
-void test_set1(void);
-
-int main(void) {
-	puts("==== [Running Hashmap tests] ====");
-	test_hm1();
-	puts("OK!");
-	puts("");
-
-	puts("==== [Running Queue tests] ====");
-	test_queue1();
-	puts("OK!");
-	puts("");
-
-	puts("==== [Running String tests] ====");
-	test_str1();
-	test_str2();
-	test_str3();
-	puts("OK!");
-	puts("");
-
-	puts("==== [Running Vector tests] ====");
-	test_vec1();
-	puts("OK!");
-	puts("");
-
-	puts("==== [Running Stack tests] ====");
-	test_stack1();
-	puts("OK!");
-	puts("");
-
-	puts("==== [Running Set tests] ====");
-	test_set1();
-	puts("OK!");
-	puts("");
-
-	return 0;
-}

test/vector/vec1.c

@@ -30,7 +30,7 @@ int my_cmp(const void *a, const void *b) {
 	return ma->age - mb->age;
 }
 
-void test_vec1(void) {
+int main(void) {
 	/* Allocate a new vector */
 	size_t elem_size = sizeof(my_elem_s);
 	vec_s *v = vec_new(10, elem_size);