test: fix ping test on windows

The `ping` method measures the duration using the `time.perf_counter()`
function. It has the same resolution as `time.time()` on Unix, but
provides higher resolution on Windows.

Closes #214

Author: r.inyakin

CHANGELOG.md

@@ -11,6 +11,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Changed
 
 ### Fixed
+- Measure `ping()` response time with `time.perf_counter()` instead of
+  `time.time()`. On Windows with Python 3.12 and older the latter has a
+  resolution of 15.6 ms, so `ping()` could return `0.0` (PR #350).
 
 ## [1.3.0] - 2026-08-17
 

tarantool/connection.py

@@ -1910,9 +1910,9 @@ def ping(self, notime=False):
         """
 
         request = RequestPing(self)
-        start_time = time.time()
+        start_time = time.perf_counter()
         self._send_request(request)
-        finish_time = time.time()
+        finish_time = time.perf_counter()
 
         if notime:
             return "Success"

test/suites/test_dml.py

@@ -171,9 +171,6 @@ def test_05_ping(self):
         # Simple ping test
         # * No exceptions are raised
         # * Ping time > 0
-        if sys.platform.startswith("win"):
-            self.skipTest("Windows clock precision causes test to fail sometimes, see #214")
-
         self.assertTrue(self.con.ping() > 0)
         self.assertEqual(self.con.ping(notime=True), "Success")