1 files changed, 46 insertions, 0 deletions
diff --git a/src/test/nxt_msec_diff_test.c b/src/test/nxt_msec_diff_test.c
new file mode 100644
index 00000000..5af7c011
--- /dev/null
+++ b/src/test/nxt_msec_diff_test.c
@@ -0,0 +1,46 @@
+
+/*
+ * Copyright (C) Igor Sysoev
+ * Copyright (C) NGINX, Inc.
+ */
+
+#include <nxt_main.h>
+#include "nxt_tests.h"
+
+
+static const nxt_msec_t  pairs[] = {
+
+    0x00000000, 0x00000001,
+    0x00000000, 0x7fffffff,
+
+    0x7fffffff, 0x80000000,
+    0x7fffffff, 0x80000001,
+
+    0x80000000, 0x80000001,
+    0x80000000, 0xffffffff,
+
+    0xffffffff, 0x00000000,
+    0xffffffff, 0x00000001,
+};
+
+
+nxt_int_t
+nxt_msec_diff_test(nxt_thread_t *thr, nxt_msec_less_t less)
+{
+    nxt_uint_t  i;
+
+    nxt_thread_time_update(thr);
+
+    for (i = 0; i < nxt_nitems(pairs); i += 2) {
+
+        if (!less(pairs[i], pairs[i + 1])) {
+            nxt_log_alert(thr->log,
+                          "msec diff test failed: 0x%08XM 0x%08XM",
+                          pairs[i], pairs[i + 1]);
+            return NXT_ERROR;
+        }
+    }
+
+    nxt_log_error(NXT_LOG_NOTICE, thr->log, "msec diff test passed");
+    return NXT_OK;
+}