Fix eecs_array_resize

.clangd

@@ -6,3 +6,8 @@ If:
   PathMatch: eecs\.h
 CompileFlags:
   Add: [-DEECS_IMPLEMENTATION]
+---
+If:
+  PathMatch: tests/.*\.c
+CompileFlags:
+  Add: [-I../]

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "munit"]
+	path = munit
+	url = https://github.com/nemequ/munit.git

eecs.h

@@ -273,7 +273,9 @@ eecs_realloc(void* memctx, void* ptr, size_t new_size) {
 #define eecs_array_pop(array) array[eecs_dynamic_array_pop(array)]
 
 #define eecs_array_resize(allocator, array, length) \
-	eecs_dynamic_array_resize(allocator, array, length, sizeof(*array))
+	do { \
+		array = eecs_dynamic_array_resize(allocator, array, length, sizeof(*array)); \
+	} while (0)
 
 #define eecs_array_clear(array) \
 	eecs_dynamic_array_clear(array)

run-tests

@@ -0,0 +1,12 @@
+#!/bin/sh -ex
+
+cc \
+    -std=c11 -Wextra -Werror -pedantic \
+    -fsanitize=undefined,address \
+	-I. \
+	-g \
+    -o test \
+	munit/munit.c \
+    tests/*.c
+
+./test "$@"

tests/basic.c

@@ -0,0 +1,81 @@
+#include <munit/munit.h>
+#include <eecs.h>
+#include "components.h"
+
+struct SystemData {
+	int init_per_world_called;
+	int cleanup_per_world_called;
+};
+
+static void
+system_init_per_world(
+	eecs_world_t* world,
+	void* userdata
+) {
+	struct SystemData* system_data = userdata;
+	++system_data->init_per_world_called;
+}
+
+static void
+system_cleanup_per_world(
+	eecs_world_t* world,
+	void* userdata
+) {
+	struct SystemData* system_data = userdata;
+	++system_data->cleanup_per_world_called;
+}
+
+static MunitResult
+init(const MunitParameter params[], void* fixture) {
+	eecs_t* ecs = eecs_create((eecs_options_t) { 0 });
+
+	eecs_component_t comp_A = EECS_HANDLE_INIT;
+	eecs_component_t comp_B = EECS_HANDLE_INIT;
+	eecs_component_t comp_C = EECS_HANDLE_INIT;
+	eecs_register_component(ecs, &comp_A, (eecs_component_options_t){
+		.size = sizeof(struct A),
+		.alignment = _Alignof(struct A),
+	});
+	eecs_register_component(ecs, &comp_B, (eecs_component_options_t){
+		.size = sizeof(struct B),
+		.alignment = _Alignof(struct B),
+	});
+	eecs_register_component(ecs, &comp_C, (eecs_component_options_t){
+		.size = sizeof(struct C),
+		.alignment = _Alignof(struct C),
+	});
+
+	eecs_system_t sys_with_init = EECS_HANDLE_INIT;
+	struct SystemData sys_with_init_data = { 0 };
+	eecs_register_system(ecs, &sys_with_init, (eecs_system_options_t){
+		.init_per_world_fn = system_init_per_world,
+		.userdata = &sys_with_init_data,
+	});
+
+	eecs_system_t sys_with_cleanup = EECS_HANDLE_INIT;
+	struct SystemData sys_with_cleanup_data = { 0 };
+	eecs_register_system(ecs, &sys_with_cleanup, (eecs_system_options_t){
+		.cleanup_per_world_fn = system_cleanup_per_world,
+		.userdata = &sys_with_cleanup_data,
+	});
+
+	eecs_world_t* world = eecs_create_world(ecs, (eecs_world_options_t){ 0 });
+	eecs_destroy_world(world);
+
+	munit_assert_int(sys_with_init_data.init_per_world_called, ==, 1);
+	munit_assert_int(sys_with_init_data.cleanup_per_world_called, ==, 0);
+
+	munit_assert_int(sys_with_cleanup_data.init_per_world_called, ==, 0);
+	munit_assert_int(sys_with_cleanup_data.cleanup_per_world_called, ==, 1);
+
+	eecs_destroy(ecs);
+	return MUNIT_OK;
+}
+
+MunitSuite basic = {
+	.prefix = "/basic",
+	.tests = (MunitTest[]){
+		{ .name = "/init", .test = init },
+		{ 0 },
+	},
+};

tests/components.h

@@ -0,0 +1,19 @@
+#ifndef COMPONENTS_H
+#define COMPONENTS_H
+
+struct A {
+	float a;
+};
+
+struct B {
+	int b;
+	long c;
+};
+
+struct C {
+	int b;
+	long c;
+	void* d;
+};
+
+#endif

tests/main.c

@@ -0,0 +1,16 @@
+#include <munit/munit.h>
+#define EECS_IMPLEMENTATION
+#include <eecs.h>
+
+extern MunitSuite basic;
+
+int main (int argc, char* argv[]) {
+	MunitSuite suites = {
+		.suites = (MunitSuite[]) {
+			basic,
+			{ 0 },
+		},
+	};
+
+	return munit_suite_main(&suites, NULL, argc, argv);
+}