gout

commit 0e5d6d353ab4998e720ee76eb7c37cc10c941cf5
parent 3e3a7690b515a054ca79df9e2c17e8c71a72470d
Author: Chris Bracken <chris@bracken.jp>
Date:   Thu, 24 Jul 2025 13:37:40 -0700

Add tests for print_time

Adds unit tests for formatting times with positive, zero, and negative
UTC offsets.

Diffstat:
M
BUILD.gn
 | 
1
+
A
format_tests.c
 | 
61
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

2 files changed, 62 insertions(+), 0 deletions(-)
diff --git a/BUILD.gn b/BUILD.gn
@@ -56,6 +56,7 @@ executable("gitout_tests") {
   testonly = true
 
   sources = [
+    "format_tests.c",
     "gitout_tests.c",
     "gitout_tests_main.c",
     "utils_tests.c",
diff --git a/format_tests.c b/format_tests.c
@@ -0,0 +1,61 @@
+#include "format.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <time.h>
+
+#include "utest.h"
+
+UTEST(print_time, PositiveOffset) {
+  char* buf = NULL;
+  size_t size = 0;
+  FILE* out = open_memstream(&buf, &size);
+  ASSERT_NE(NULL, out);
+
+  /* Test time: 2023-12-08 10:30:00 UTC */
+  time_t test_time = 1702031400;
+  int timezone_offset = 540;  /* +09:00 */
+
+  print_time(out, test_time, timezone_offset);
+  fclose(out);
+
+  EXPECT_STREQ("Fri,  8 Dec 2023 19:30:00 +0900", buf);
+
+  free(buf);
+}
+
+UTEST(print_time, NegativeOffset) {
+  char* buf = NULL;
+  size_t size = 0;
+  FILE* out = open_memstream(&buf, &size);
+  ASSERT_NE(NULL, out);
+
+  /* Test time: 2023-12-08 10:30:00 UTC */
+  time_t test_time = 1702031400;
+  int timezone_offset = -300;  /* -05:00 */
+
+  print_time(out, test_time, timezone_offset);
+  fclose(out);
+
+  EXPECT_STREQ("Fri,  8 Dec 2023 05:30:00 -0500", buf);
+
+  free(buf);
+}
+
+UTEST(print_time, ZeroOffset) {
+  char* buf = NULL;
+  size_t size = 0;
+  FILE* out = open_memstream(&buf, &size);
+  ASSERT_NE(NULL, out);
+
+  /* Test time: 2023-12-08 10:30:00 UTC */
+  time_t test_time = 1702031400;
+  int timezone_offset = 0;  /* UTC */
+
+  print_time(out, test_time, timezone_offset);
+  fclose(out);
+
+  EXPECT_STREQ("Fri,  8 Dec 2023 10:30:00 +0000", buf);
+
+  free(buf);
+}