Add tests

Signed-off-by: Mattias Andrée <maandree@kth.se>

1 files changed, 58 insertions, 1 deletions

diff --git a/enrealloc.c b/enrealloc.c
index 92a50db..59033e7 100644
--- a/enrealloc.c
+++ b/enrealloc.c
@@ -4,7 +4,7 @@
 
 
 void *
-libsimple_enrealloc(int status, void *ptr, size_t n) /* TODO test */
+libsimple_enrealloc(int status, void *ptr, size_t n)
 {
 	char *ret = realloc(ptr, n);
 	if (!ret)
@@ -19,6 +19,63 @@ libsimple_enrealloc(int status, void *ptr, size_t n) /* TODO test */
 int
 main(void)
 {
+	struct allocinfo *info;
+	void *ptr, *old;
+
+	assert((ptr = libsimple_enrealloc(1, NULL, 5)));
+	if (have_custom_malloc()) {
+		assert((info = get_allocinfo(ptr)));
+		assert(info->size == 5);
+		assert(!info->zeroed);
+		info->refcount += 1;
+	}
+	stpcpy(ptr, "test");
+	assert((ptr = libsimple_enrealloc(1, old = ptr, 10)));
+	assert(!strcmp(ptr, "test"));
+	if (have_custom_malloc()) {
+		assert((info = get_allocinfo(ptr)));
+		assert(info->size == 10);
+		assert(!info->zeroed);
+		assert(ptr != old);
+		free(old);
+	}
+	free(ptr);
+
+	assert((ptr = libsimple_erealloc(NULL, 5)));
+	if (have_custom_malloc()) {
+		assert((info = get_allocinfo(ptr)));
+		assert(info->size == 5);
+		assert(!info->zeroed);
+		info->refcount += 1;
+	}
+	stpcpy(ptr, "test");
+	assert((ptr = libsimple_erealloc(old = ptr, 10)));
+	assert(!strcmp(ptr, "test"));
+	if (have_custom_malloc()) {
+		assert((info = get_allocinfo(ptr)));
+		assert(info->size == 10);
+		assert(!info->zeroed);
+		assert(ptr != old);
+		free(old);
+	}
+	free(ptr);
+
+	if (have_custom_malloc()) {
+		alloc_fail_in = 1;
+		assert_exit_ptr(libsimple_enrealloc(2, NULL, 1));
+		assert(exit_status == 2);
+		assert_stderr("%s: realloc: %s\n", argv0, strerror(ENOMEM));
+		assert(!alloc_fail_in);
+
+		libsimple_default_failure_exit = 104;
+		alloc_fail_in = 1;
+		assert_exit_ptr(libsimple_erealloc(NULL, 1));
+		assert(exit_status == 104);
+		assert_stderr("%s: realloc: %s\n", argv0, strerror(ENOMEM));
+		assert(!alloc_fail_in);
+		libsimple_default_failure_exit = 1;
+	}
+
 	return 0;
 }