bpo-35513, unittest: TextTestRunner uses time.perf_counter() (GH-11180)

TextTestRunner of unittest.runner now uses time.perf_counter() rather
than time.time() to measure the execution time of a test: time.time()
can go backwards, whereas time.perf_counter() is monotonic.

Similar change made in libregrtest, pprint and random.

1 files changed, 6 insertions, 6 deletions

diff --git a/Lib/test/time_hashlib.py b/Lib/test/time_hashlib.py
index 2585ecb..55ebac6 100644
--- a/Lib/test/time_hashlib.py
+++ b/Lib/test/time_hashlib.py
@@ -14,26 +14,26 @@ def test_scaled_msg(scale, name):
     longStr = b'Z'*scale
 
     localCF = creatorFunc
-    start = time.time()
+    start = time.perf_counter()
     for f in range(iterations):
         x = localCF(longStr).digest()
-    end = time.time()
+    end = time.perf_counter()
 
     print(('%2.2f' % (end-start)), "seconds", iterations, "x", len(longStr), "bytes", name)
 
 def test_create():
-    start = time.time()
+    start = time.perf_counter()
     for f in range(20000):
         d = creatorFunc()
-    end = time.time()
+    end = time.perf_counter()
 
     print(('%2.2f' % (end-start)), "seconds", '[20000 creations]')
 
 def test_zero():
-    start = time.time()
+    start = time.perf_counter()
     for f in range(20000):
         x = creatorFunc().digest()
-    end = time.time()
+    end = time.perf_counter()
 
     print(('%2.2f' % (end-start)), "seconds", '[20000 "" digests]')