Closed #16886: test_dictcomps no longer depends on dict order
This commit is contained in:
Frank Wierzbicki
parent
5e1c3ce133
commit
809067c3c5
|
|
@ -1,54 +1,91 @@
|
|||
import unittest
|
||||
|
||||
doctests = """
|
||||
from test import support
|
||||
|
||||
>>> k = "old value"
|
||||
>>> { k: None for k in range(10) }
|
||||
{0: None, 1: None, 2: None, 3: None, 4: None, 5: None, 6: None, 7: None, 8: None, 9: None}
|
||||
>>> k
|
||||
'old value'
|
||||
# For scope testing.
|
||||
g = "Global variable"
|
||||
|
||||
>>> { k: k+10 for k in range(10) }
|
||||
{0: 10, 1: 11, 2: 12, 3: 13, 4: 14, 5: 15, 6: 16, 7: 17, 8: 18, 9: 19}
|
||||
|
||||
>>> g = "Global variable"
|
||||
>>> { k: g for k in range(10) }
|
||||
{0: 'Global variable', 1: 'Global variable', 2: 'Global variable', 3: 'Global variable', 4: 'Global variable', 5: 'Global variable', 6: 'Global variable', 7: 'Global variable', 8: 'Global variable', 9: 'Global variable'}
|
||||
class DictComprehensionTest(unittest.TestCase):
|
||||
|
||||
>>> { k: v for k in range(10) for v in range(10) if k == v }
|
||||
{0: 0, 1: 1, 2: 2, 3: 3, 4: 4, 5: 5, 6: 6, 7: 7, 8: 8, 9: 9}
|
||||
def test_basics(self):
|
||||
expected = {0: 10, 1: 11, 2: 12, 3: 13, 4: 14, 5: 15, 6: 16, 7: 17,
|
||||
8: 18, 9: 19}
|
||||
actual = {k: k + 10 for k in range(10)}
|
||||
self.assertEqual(actual, expected)
|
||||
|
||||
>>> { k: v for v in range(10) for k in range(v*9, v*10) }
|
||||
{9: 1, 18: 2, 19: 2, 27: 3, 28: 3, 29: 3, 36: 4, 37: 4, 38: 4, 39: 4, 45: 5, 46: 5, 47: 5, 48: 5, 49: 5, 54: 6, 55: 6, 56: 6, 57: 6, 58: 6, 59: 6, 63: 7, 64: 7, 65: 7, 66: 7, 67: 7, 68: 7, 69: 7, 72: 8, 73: 8, 74: 8, 75: 8, 76: 8, 77: 8, 78: 8, 79: 8, 81: 9, 82: 9, 83: 9, 84: 9, 85: 9, 86: 9, 87: 9, 88: 9, 89: 9}
|
||||
expected = {0: 0, 1: 1, 2: 2, 3: 3, 4: 4, 5: 5, 6: 6, 7: 7, 8: 8, 9: 9}
|
||||
actual = {k: v for k in range(10) for v in range(10) if k == v}
|
||||
self.assertEqual(actual, expected)
|
||||
|
||||
>>> { x: y for y, x in ((1, 2), (3, 4)) } = 5 # doctest: +IGNORE_EXCEPTION_DETAIL
|
||||
Traceback (most recent call last):
|
||||
...
|
||||
SyntaxError: ...
|
||||
def test_scope_isolation(self):
|
||||
k = "Local Variable"
|
||||
|
||||
>>> { x: y for y, x in ((1, 2), (3, 4)) } += 5 # doctest: +IGNORE_EXCEPTION_DETAIL
|
||||
Traceback (most recent call last):
|
||||
...
|
||||
SyntaxError: ...
|
||||
expected = {0: None, 1: None, 2: None, 3: None, 4: None, 5: None,
|
||||
6: None, 7: None, 8: None, 9: None}
|
||||
actual = {k: None for k in range(10)}
|
||||
self.assertEqual(actual, expected)
|
||||
self.assertEqual(k, "Local Variable")
|
||||
|
||||
"""
|
||||
expected = {9: 1, 18: 2, 19: 2, 27: 3, 28: 3, 29: 3, 36: 4, 37: 4,
|
||||
38: 4, 39: 4, 45: 5, 46: 5, 47: 5, 48: 5, 49: 5, 54: 6,
|
||||
55: 6, 56: 6, 57: 6, 58: 6, 59: 6, 63: 7, 64: 7, 65: 7,
|
||||
66: 7, 67: 7, 68: 7, 69: 7, 72: 8, 73: 8, 74: 8, 75: 8,
|
||||
76: 8, 77: 8, 78: 8, 79: 8, 81: 9, 82: 9, 83: 9, 84: 9,
|
||||
85: 9, 86: 9, 87: 9, 88: 9, 89: 9}
|
||||
actual = {k: v for v in range(10) for k in range(v * 9, v * 10)}
|
||||
self.assertEqual(k, "Local Variable")
|
||||
self.assertEqual(actual, expected)
|
||||
|
||||
__test__ = {'doctests' : doctests}
|
||||
def test_scope_isolation_from_global(self):
|
||||
expected = {0: None, 1: None, 2: None, 3: None, 4: None, 5: None,
|
||||
6: None, 7: None, 8: None, 9: None}
|
||||
actual = {g: None for g in range(10)}
|
||||
self.assertEqual(actual, expected)
|
||||
self.assertEqual(g, "Global variable")
|
||||
|
||||
def test_main(verbose=None):
|
||||
import sys
|
||||
from test import support
|
||||
from test import test_dictcomps
|
||||
support.run_doctest(test_dictcomps, verbose)
|
||||
expected = {9: 1, 18: 2, 19: 2, 27: 3, 28: 3, 29: 3, 36: 4, 37: 4,
|
||||
38: 4, 39: 4, 45: 5, 46: 5, 47: 5, 48: 5, 49: 5, 54: 6,
|
||||
55: 6, 56: 6, 57: 6, 58: 6, 59: 6, 63: 7, 64: 7, 65: 7,
|
||||
66: 7, 67: 7, 68: 7, 69: 7, 72: 8, 73: 8, 74: 8, 75: 8,
|
||||
76: 8, 77: 8, 78: 8, 79: 8, 81: 9, 82: 9, 83: 9, 84: 9,
|
||||
85: 9, 86: 9, 87: 9, 88: 9, 89: 9}
|
||||
actual = {g: v for v in range(10) for g in range(v * 9, v * 10)}
|
||||
self.assertEqual(g, "Global variable")
|
||||
self.assertEqual(actual, expected)
|
||||
|
||||
# verify reference counting
|
||||
if verbose and hasattr(sys, "gettotalrefcount"):
|
||||
import gc
|
||||
counts = [None] * 5
|
||||
for i in range(len(counts)):
|
||||
support.run_doctest(test_dictcomps, verbose)
|
||||
gc.collect()
|
||||
counts[i] = sys.gettotalrefcount()
|
||||
print(counts)
|
||||
def test_global_visibility(self):
|
||||
expected = {0: 'Global variable', 1: 'Global variable',
|
||||
2: 'Global variable', 3: 'Global variable',
|
||||
4: 'Global variable', 5: 'Global variable',
|
||||
6: 'Global variable', 7: 'Global variable',
|
||||
8: 'Global variable', 9: 'Global variable'}
|
||||
actual = {k: g for k in range(10)}
|
||||
self.assertEqual(actual, expected)
|
||||
|
||||
def test_local_visibility(self):
|
||||
v = "Local variable"
|
||||
expected = {0: 'Local variable', 1: 'Local variable',
|
||||
2: 'Local variable', 3: 'Local variable',
|
||||
4: 'Local variable', 5: 'Local variable',
|
||||
6: 'Local variable', 7: 'Local variable',
|
||||
8: 'Local variable', 9: 'Local variable'}
|
||||
actual = {k: v for k in range(10)}
|
||||
self.assertEqual(actual, expected)
|
||||
self.assertEqual(v, "Local variable")
|
||||
|
||||
def test_illegal_assignment(self):
|
||||
with self.assertRaisesRegex(SyntaxError, "can't assign"):
|
||||
compile("{x: y for y, x in ((1, 2), (3, 4))} = 5", "<test>",
|
||||
"exec")
|
||||
|
||||
with self.assertRaisesRegex(SyntaxError, "can't assign"):
|
||||
compile("{x: y for y, x in ((1, 2), (3, 4))} += 5", "<test>",
|
||||
"exec")
|
||||
|
||||
|
||||
def test_main():
|
||||
support.run_unittest(__name__)
|
||||
|
||||
if __name__ == "__main__":
|
||||
test_main(verbose=True)
|
||||
test_main()
|
||||
|
|
|
|||
Loading…
Reference in New Issue