diff --git a/Lib/test/test_os.py b/Lib/test/test_os.py index f3d2ceb263f6f4..8aac92934f6ac0 100644 --- a/Lib/test/test_os.py +++ b/Lib/test/test_os.py @@ -805,14 +805,28 @@ def _test_utime(self, set_time, filename=None): set_time(filename, (atime_ns, mtime_ns)) st = os.stat(filename) - if support_subsecond: - self.assertAlmostEqual(st.st_atime, atime_ns * 1e-9, delta=1e-6) - self.assertAlmostEqual(st.st_mtime, mtime_ns * 1e-9, delta=1e-6) + if support.is_emscripten: + # Emscripten timestamps are roundtripped through a 53 bit integer of + # nanoseconds. If we want to represent ~50 years which is an 11 + # digits number of seconds: + # 2*log10(60) + log10(24) + log10(365) + log10(60) + log10(50) + # is about 11. Because 53 * log10(2) is about 16, we only have 5 + # digits worth of sub-second precision. + # Some day it would be good to fix this upstream. + delta=1e-5 + self.assertAlmostEqual(st.st_atime, atime_ns * 1e-9, delta=1e-5) + self.assertAlmostEqual(st.st_mtime, mtime_ns * 1e-9, delta=1e-5) + self.assertAlmostEqual(st.st_atime_ns, atime_ns, delta=1e9 * 1e-5) + self.assertAlmostEqual(st.st_mtime_ns, mtime_ns, delta=1e9 * 1e-5) else: - self.assertEqual(st.st_atime, atime_ns * 1e-9) - self.assertEqual(st.st_mtime, mtime_ns * 1e-9) - self.assertEqual(st.st_atime_ns, atime_ns) - self.assertEqual(st.st_mtime_ns, mtime_ns) + if support_subsecond: + self.assertAlmostEqual(st.st_atime, atime_ns * 1e-9, delta=1e-6) + self.assertAlmostEqual(st.st_mtime, mtime_ns * 1e-9, delta=1e-6) + else: + self.assertEqual(st.st_atime, atime_ns * 1e-9) + self.assertEqual(st.st_mtime, mtime_ns * 1e-9) + self.assertEqual(st.st_atime_ns, atime_ns) + self.assertEqual(st.st_mtime_ns, mtime_ns) def test_utime(self): def set_time(filename, ns): diff --git a/Lib/test/test_time.py b/Lib/test/test_time.py index d368f08b610870..92398300f26577 100644 --- a/Lib/test/test_time.py +++ b/Lib/test/test_time.py @@ -116,6 +116,7 @@ def test_clock_monotonic(self): 'need time.pthread_getcpuclockid()') @unittest.skipUnless(hasattr(time, 'clock_gettime'), 'need time.clock_gettime()') + @unittest.skipIf(support.is_emscripten, "Fails to find clock") def test_pthread_getcpuclockid(self): clk_id = time.pthread_getcpuclockid(threading.get_ident()) self.assertTrue(type(clk_id) is int) @@ -539,6 +540,9 @@ def test_perf_counter(self): @unittest.skipIf( support.is_wasi, "process_time not available on WASI" ) + @unittest.skipIf( + support.is_emscripten, "process_time present but doesn't exclude sleep" + ) def test_process_time(self): # process_time() should not include time spend during a sleep start = time.process_time()
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