1 files changed, 120 insertions, 0 deletions
diff --git a/test/uuid.c b/test/uuid.c
new file mode 100644
index 0000000..9146453
--- /dev/null
+++ b/test/uuid.c
@@ -0,0 +1,120 @@
+// SPDX-License-Identifier: LGPL-2.1-or-later
+/**
+ * This file is part of libnvme.
+ * Copyright (c) 2022 Daniel Wagner, SUSE Software Solutions
+ */
+
+#include <string.h>
+#include <stdlib.h>
+
+#include <ccan/array_size/array_size.h>
+
+#include <libnvme.h>
+
+static int test_rc;
+
+struct test_data {
+	unsigned char uuid[NVME_UUID_LEN];
+	const char *str;
+};
+
+static struct test_data test_data[] = {
+	{ { 0 },	         "00000000-0000-0000-0000-000000000000" },
+	{ { [0 ... 15] = 0xff }, "ffffffff-ffff-ffff-ffff-ffffffffffff" },
+	{ { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+	    0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0f, 0x10 },
+				 "00010203-0405-0607-0809-0a0b0c0d0f10" },
+};
+
+static void check_str(const char *exp, const char *res)
+{
+	if (!strcmp(res, exp))
+		return;
+
+	printf("ERROR: got '%s', expected '%s'\n", res, exp);
+
+	test_rc = 1;
+}
+
+static void print_uuid_hex(const unsigned char uuid[NVME_UUID_LEN])
+{
+	for (int i = 0; i < NVME_UUID_LEN; i++)
+		printf("%02x", uuid[i]);
+}
+
+static void check_uuid(unsigned char exp[NVME_UUID_LEN],
+		       unsigned char res[NVME_UUID_LEN])
+{
+	if (!memcmp(exp, res, NVME_UUID_LEN))
+		return;
+
+	printf("ERROR: got '");
+	print_uuid_hex(exp);
+	printf("', expected '");
+	print_uuid_hex(res);
+	printf("'\n");
+}
+
+static void tostr_test(struct test_data *test)
+{
+	char str[NVME_UUID_LEN_STRING];
+
+	if (nvme_uuid_to_string(test->uuid, str)) {
+		test_rc = 1;
+		printf("ERROR: nvme_uuid_to_string() failed\n");
+		return;
+	}
+	check_str(test->str, str);
+}
+
+static void fromstr_test(struct test_data *test)
+{
+
+	unsigned char uuid[NVME_UUID_LEN];
+
+	if (nvme_uuid_from_string(test->str, uuid)) {
+		test_rc = 1;
+		printf("ERROR: nvme_uuid_from_string() failed\n");
+		return;
+	}
+	check_uuid(test->uuid, uuid);
+}
+
+static void random_uuid_test(void)
+{
+	unsigned char uuid1[NVME_UUID_LEN], uuid2[NVME_UUID_LEN];
+	char str1[NVME_UUID_LEN_STRING], str2[NVME_UUID_LEN_STRING];
+
+	if (nvme_uuid_random(uuid1) || nvme_uuid_random(uuid2)) {
+		test_rc = 1;
+		printf("ERROR: nvme_uuid_random() failed\n");
+		return;
+	}
+
+	if (!memcmp(uuid1, uuid2, NVME_UUID_LEN)) {
+		test_rc = 1;
+		printf("ERROR: generated random numbers are equal\n");
+		return;
+	}
+
+	if (nvme_uuid_to_string(uuid1, str1) ||
+	    nvme_uuid_to_string(uuid2, str2)) {
+		test_rc = 1;
+		printf("ERROR: could not stringify randomly generated UUID\n");
+		return;
+	}
+	printf("PASS: generated UUIDs %s %s\n", str1, str2);
+}
+
+int main(void)
+{
+	for (int i = 0; i < ARRAY_SIZE(test_data); i++)
+		tostr_test(&test_data[i]);
+
+	for (int i = 0; i < ARRAY_SIZE(test_data); i++)
+		fromstr_test(&test_data[i]);
+
+	random_uuid_test();
+
+	return test_rc ? EXIT_FAILURE : EXIT_SUCCESS;
+}