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Unified Diff: Lib/test/test_bisect.py

Issue 16897: Fix test discovery for test_bisect.py
Patch Set: Created 6 years, 8 months ago
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--- a/Lib/test/test_bisect.py Tue Jan 08 11:27:18 2013 +0000
+++ b/Lib/test/test_bisect.py Wed Jan 09 09:34:37 2013 -0600
@@ -3,25 +3,8 @@
from test import support
from collections import UserList
-# We do a bit of trickery here to be able to test both the C implementation
-# and the Python implementation of the module.
-
-# Make it impossible to import the C implementation anymore.
-sys.modules['_bisect'] = 0
-# We must also handle the case that bisect was imported before.
-if 'bisect' in sys.modules:
- del sys.modules['bisect']
-
-# Now we can import the module and get the pure Python implementation.
-import bisect as py_bisect
-
-# Restore everything to normal.
-del sys.modules['_bisect']
-del sys.modules['bisect']
-
-# This is now the module with the C implementation.
-import bisect as c_bisect
-
+py_bisect = support.import_fresh_module('bisect', blocked=['_bisect'])
+c_bisect = support.import_fresh_module('bisect', fresh=['_bisect'])
class Range(object):
"""A trivial range()-like object without any integer width limitations."""
@@ -45,9 +28,7 @@
self.last_insert = idx, item
-class TestBisect(unittest.TestCase):
- module = None
-
+class TestBisect:
def setUp(self):
self.precomputedCases = [
(self.module.bisect_right, [], 1, 0),
@@ -218,17 +199,15 @@
self.module.insort(a=data, x=25, lo=1, hi=3)
self.assertEqual(data, [10, 20, 25, 25, 25, 30, 40, 50])
-class TestBisectPython(TestBisect):
+class TestBisectPython(TestBisect, unittest.TestCase):
module = py_bisect
-class TestBisectC(TestBisect):
+class TestBisectC(TestBisect, unittest.TestCase):
module = c_bisect
#==============================================================================
-class TestInsort(unittest.TestCase):
- module = None
-
+class TestInsort:
def test_vsBuiltinSort(self, n=500):
from random import choice
for insorted in (list(), UserList()):
@@ -255,15 +234,14 @@
self.module.insort_right(lst, 5)
self.assertEqual([5, 10], lst.data)
-class TestInsortPython(TestInsort):
+class TestInsortPython(TestInsort, unittest.TestCase):
module = py_bisect
-class TestInsortC(TestInsort):
+class TestInsortC(TestInsort, unittest.TestCase):
module = c_bisect
#==============================================================================
-
class LenOnly:
"Dummy sequence class defining __len__ but not __getitem__."
def __len__(self):
@@ -284,9 +262,7 @@
__eq__ = __lt__
__ne__ = __lt__
-class TestErrorHandling(unittest.TestCase):
- module = None
-
+class TestErrorHandling:
def test_non_sequence(self):
for f in (self.module.bisect_left, self.module.bisect_right,
self.module.insort_left, self.module.insort_right):
@@ -313,58 +289,30 @@
self.module.insort_left, self.module.insort_right):
self.assertRaises(TypeError, f, 10)
-class TestErrorHandlingPython(TestErrorHandling):
+class TestErrorHandlingPython(TestErrorHandling, unittest.TestCase):
module = py_bisect
-class TestErrorHandlingC(TestErrorHandling):
+class TestErrorHandlingC(TestErrorHandling, unittest.TestCase):
module = c_bisect
#==============================================================================
-libreftest = """
-Example from the Library Reference: Doc/library/bisect.rst
+class TestDocExample:
+ def test_grades(self):
+ def grade(score, breakpoints=[60, 70, 80, 90], grades='FDCBA'):
+ i = self.module.bisect(breakpoints, score)
+ return grades[i]
-The bisect() function is generally useful for categorizing numeric data.
-This example uses bisect() to look up a letter grade for an exam total
-(say) based on a set of ordered numeric breakpoints: 85 and up is an `A',
-75..84 is a `B', etc.
+ result = [grade(score) for score in [33, 99, 77, 70, 89, 90, 100]]
+ self.assertEqual(result, ['F', 'A', 'C', 'C', 'B', 'A', 'A'])
- >>> grades = "FEDCBA"
- >>> breakpoints = [30, 44, 66, 75, 85]
- >>> from bisect import bisect
- >>> def grade(total):
- ... return grades[bisect(breakpoints, total)]
- ...
- >>> grade(66)
- 'C'
- >>> list(map(grade, [33, 99, 77, 44, 12, 88]))
- ['E', 'A', 'B', 'D', 'F', 'A']
+class TestDocExamplePython(TestDocExample, unittest.TestCase):
+ module = py_bisect
-"""
+class TestDocExampleC(TestDocExample, unittest.TestCase):
+ module = c_bisect
#------------------------------------------------------------------------------
-__test__ = {'libreftest' : libreftest}
-
-def test_main(verbose=None):
- from test import test_bisect
-
- test_classes = [TestBisectPython, TestBisectC,
- TestInsortPython, TestInsortC,
- TestErrorHandlingPython, TestErrorHandlingC]
-
- support.run_unittest(*test_classes)
- support.run_doctest(test_bisect, verbose)
-
- # verify reference counting
- if verbose and hasattr(sys, "gettotalrefcount"):
- import gc
- counts = [None] * 5
- for i in range(len(counts)):
- support.run_unittest(*test_classes)
- gc.collect()
- counts[i] = sys.gettotalrefcount()
- print(counts)
-
if __name__ == "__main__":
- test_main(verbose=True)
+ unittest.main()
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