Replace time.time() with _pytest.timing.perf_counter()

AUTHORS

@@ -130,6 +130,7 @@ Daw-Ran Liou
 Debi Mishra
 Denis Kirisov
 Denivy Braiam Rück
+Deysha Rivera
 Dheeraj C K
 Dhiren Serai
 Diego Russo

changelog/13384.bugfix.rst

@@ -0,0 +1,2 @@
+Fixed an issue where pytest could report negative durations due to the use of `time.time()`.
+Replaced `time.time()` with `_pytest.timing.perf_counter()` for more reliable timing.

testing/_py/test_local.py

@@ -12,6 +12,7 @@
 from py import error
 from py.path import local
 
+from _pytest.timing import perf_counter
 import pytest
 
 
@@ -738,7 +739,6 @@ def test_dump(self, tmpdir, bin):
 
     def test_setmtime(self):
         import tempfile
-        import time
 
         try:
             fd, name = tempfile.mkstemp()
@@ -747,7 +747,7 @@ def test_setmtime(self):
             name = tempfile.mktemp()
             open(name, "w").close()
         try:
-            mtime = int(time.time()) - 100
+            mtime = int(perf_counter()) - 100
             path = local(name)
             assert path.mtime() != mtime
             path.setmtime(mtime)
@@ -1405,15 +1405,15 @@ def test_atime(self, tmpdir):
         import time
 
         path = tmpdir.ensure("samplefile")
-        now = time.time()
+        now = perf_counter()
         atime1 = path.atime()
         # we could wait here but timer resolution is very
         # system dependent
         path.read_binary()
         time.sleep(ATIME_RESOLUTION)
         atime2 = path.atime()
         time.sleep(ATIME_RESOLUTION)
-        duration = time.time() - now
+        duration = perf_counter() - now
         assert (atime2 - atime1) <= duration
 
     def test_commondir(self, path1):

testing/test_pytester.py

@@ -4,7 +4,6 @@
 import os
 import subprocess
 import sys
-import time
 from types import ModuleType
 
 from _pytest.config import ExitCode
@@ -16,6 +15,7 @@
 from _pytest.pytester import Pytester
 from _pytest.pytester import SysModulesSnapshot
 from _pytest.pytester import SysPathsSnapshot
+from _pytest.timing import perf_counter
 import pytest
 
 
@@ -451,9 +451,9 @@ def test_pytester_run_with_timeout(pytester: Pytester) -> None:
 
     timeout = 120
 
-    start = time.time()
+    start = perf_counter()
     result = pytester.runpytest_subprocess(testfile, timeout=timeout)
-    end = time.time()
+    end = perf_counter()
     duration = end - start
 
     assert result.ret == ExitCode.OK