1 files changed, 80 insertions, 1 deletions

diff --git a/aligned_strndup.c b/aligned_strndup.c
index a714387..f41fa8c 100644
--- a/aligned_strndup.c
+++ b/aligned_strndup.c
@@ -4,7 +4,7 @@
 
 
 char *
-libsimple_aligned_strndup(const char *s, size_t alignment, size_t n) /* TODO test */
+libsimple_aligned_strndup(const char *s, size_t alignment, size_t n)
 {
 	char *ret;
 	n = strnlen(s, n);
@@ -23,6 +23,85 @@ libsimple_aligned_strndup(const char *s, size_t alignment, size_t n) /* TODO tes
 int
 main(void)
 {
+	struct allocinfo *info;
+	void *s;
+
+	assert((s = libsimple_aligned_strndup("hello", 2, SIZE_MAX)));
+	if (have_custom_malloc()) {
+		assert((info = get_allocinfo(s)));
+		assert(info->size == 6);
+		assert(info->alignment == 2);
+		assert(!info->zeroed);
+	}
+	assert(!memcmp(s, "hello", 6));
+	free(s);
+
+	assert((s = libsimple_aligned_strndup("hello", 2, 100)));
+	if (have_custom_malloc()) {
+		assert((info = get_allocinfo(s)));
+		assert(info->size == 6);
+		assert(info->alignment == 2);
+		assert(!info->zeroed);
+	}
+	assert(!memcmp(s, "hello", 6));
+	free(s);
+
+	assert((s = libsimple_aligned_strndup("hello", 4, 6)));
+	if (have_custom_malloc()) {
+		assert((info = get_allocinfo(s)));
+		assert(info->size == 8);
+		assert(info->alignment == 4);
+		assert(!info->zeroed);
+	}
+	assert(!memcmp(s, "hello", 6));
+	free(s);
+
+	assert((s = libsimple_aligned_strndup("hello", 8, 6)));
+	if (have_custom_malloc()) {
+		assert((info = get_allocinfo(s)));
+		assert(info->size == 8);
+		assert(info->alignment == 8);
+		assert(!info->zeroed);
+	}
+	assert(!memcmp(s, "hello", 6));
+	free(s);
+
+	assert((s = libsimple_aligned_strndup("hello", 16, 6)));
+	if (have_custom_malloc()) {
+		assert((info = get_allocinfo(s)));
+		assert(info->size == 16);
+		assert(info->alignment == 16);
+		assert(!info->zeroed);
+	}
+	assert(!memcmp(s, "hello", 6));
+	free(s);
+
+	assert((s = libsimple_aligned_strndup("hello", 2, 5)));
+	if (have_custom_malloc()) {
+		assert((info = get_allocinfo(s)));
+		assert(info->size == 6);
+		assert(info->alignment == 2);
+		assert(!info->zeroed);
+	}
+	assert(!memcmp(s, "hello", 6));
+	free(s);
+
+	assert((s = libsimple_aligned_strndup("hello", 2, 4)));
+	if (have_custom_malloc()) {
+		assert((info = get_allocinfo(s)));
+		assert(info->size == 6);
+		assert(info->alignment == 2);
+		assert(!info->zeroed);
+	}
+	assert(!memcmp(s, "hell", 5));
+	free(s);
+
+	if (have_custom_malloc()) {
+		alloc_fail_in = 1;
+		assert(!libsimple_aligned_strndup("hello", 2, 10) && errno == ENOMEM);
+		assert(!alloc_fail_in);
+	}
+
 	return 0;
 }