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Improve test coverage.

This commit is contained in:
Raymond Hettinger 2004-09-29 08:03:17 +00:00
parent 5497feefac
commit bcab2b25f9
2 changed files with 116 additions and 5 deletions
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103
Lib/test/list_tests.py
View File

@ -3,12 +3,40 @@ Tests common to list and UserList.UserList
"""
import sys
import os
import unittest
from test import test_support, seq_tests
class CommonTest(seq_tests.CommonTest):
def test_init(self):
# Iterable arg is optional
self.assertEqual(self.type2test([]), self.type2test())
# Init clears previous values
a = self.type2test([1, 2, 3])
a.__init__()
self.assertEqual(a, self.type2test([]))
# Init overwrites previous values
a = self.type2test([1, 2, 3])
a.__init__([4, 5, 6])
self.assertEqual(a, self.type2test([4, 5, 6]))
# Mutables always return a new object
b = self.type2test(a)
self.assertNotEqual(id(a), id(b))
self.assertEqual(a, b)
def test_mul(self):
for m in xrange(4):
s = tuple(range(m))
for n in xrange(-3, 5):
self.assertEqual(self.type2test(s*n), self.type2test(s)*n)
self.assertEqual(self.type2test(s)*(-4), self.type2test([]))
self.assertEqual(id(s), id(s*1))
def test_repr(self):
l0 = []
l2 = [0, 1, 2]
@ -21,6 +49,71 @@ class CommonTest(seq_tests.CommonTest):
self.assertEqual(str(a2), "[0, 1, 2]")
self.assertEqual(repr(a2), "[0, 1, 2]")
a2.append(a2)
a2.append(3)
self.assertEqual(str(a2), "[0, 1, 2, [...], 3]")
self.assertEqual(repr(a2), "[0, 1, 2, [...], 3]")
def test_print(self):
d = self.type2test(xrange(200))
d.append(d)
d.extend(xrange(200,400))
d.append(d)
d.append(400)
try:
fo = open(test_support.TESTFN, "wb")
print >> fo, d,
fo.close()
fo = open(test_support.TESTFN, "rb")
self.assertEqual(fo.read(), repr(d))
finally:
fo.close()
os.remove(test_support.TESTFN)
def test_getitem(self):
a = self.type2test([10, 11])
self.assertEqual(a[0], 10)
self.assertEqual(a[1], 11)
self.assertEqual(a[-2], 10)
self.assertEqual(a[-1], 11)
self.assertRaises(IndexError, a.__getitem__, -3)
self.assertRaises(IndexError, a.__getitem__, 3)
def test_subscript(self):
a = self.type2test([10, 11])
self.assertEqual(a.__getitem__(0L), 10)
self.assertEqual(a.__getitem__(1L), 11)
self.assertEqual(a.__getitem__(-2L), 10)
self.assertEqual(a.__getitem__(-1L), 11)
self.assertRaises(IndexError, a.__getitem__, -3)
self.assertRaises(IndexError, a.__getitem__, 3)
self.assertEqual(a.__getitem__(slice(0,1)), self.type2test([10]))
self.assertEqual(a.__getitem__(slice(1,2)), self.type2test([11]))
self.assertEqual(a.__getitem__(slice(0,2)), self.type2test([10, 11]))
self.assertEqual(a.__getitem__(slice(0,3)), self.type2test([10, 11]))
self.assertEqual(a.__getitem__(slice(3,5)), self.type2test([]))
self.assertRaises(ValueError, a.__getitem__, slice(0, 10, 0))
self.assertRaises(TypeError, a.__getitem__, 'x')
def test_set_subscript(self):
a = self.type2test(range(20))
self.assertRaises(ValueError, a.__setitem__, slice(0, 10, 0), [1,2,3])
self.assertRaises(TypeError, a.__setitem__, slice(0, 10), 1)
self.assertRaises(ValueError, a.__setitem__, slice(0, 10, 2), [1,2])
self.assertRaises(TypeError, a.__getitem__, 'x', 1)
a[slice(2,10,3)] = [1,2,3]
self.assertEqual(a, self.type2test([0, 1, 1, 3, 4, 2, 6, 7, 3,
9, 10, 11, 12, 13, 14, 15,
16, 17, 18, 19]))
def test_reversed(self):
a = self.type2test(range(20))
r = reversed(a)
self.assertEqual(list(r), self.type2test(range(19, -1, -1)))
self.assertRaises(StopIteration, r.next)
self.assertEqual(list(reversed(self.type2test())),
self.type2test())
def test_setitem(self):
a = self.type2test([0, 1])
a[0] = 0
@ -36,7 +129,6 @@ class CommonTest(seq_tests.CommonTest):
a = self.type2test([])
self.assertRaises(IndexError, a.__setitem__, 0, 200)
self.assertRaises(IndexError, a.__setitem__, -1, 200)
self.assertRaises(TypeError, a.__setitem__)
a = self.type2test([0,1,2,3,4])
@ -210,6 +302,7 @@ class CommonTest(seq_tests.CommonTest):
self.assertRaises(TypeError, a.insert)
def test_pop(self):
from decimal import Decimal
a = self.type2test([-1, 0, 1])
a.pop()
self.assertEqual(a, [-1, 0])
@ -219,8 +312,10 @@ class CommonTest(seq_tests.CommonTest):
a.pop(0)
self.assertEqual(a, [])
self.assertRaises(IndexError, a.pop)
self.assertRaises(TypeError, a.pop, 42, 42)
a = self.type2test([0, 10, 20, 30, 40])
self.assertEqual(a.pop(Decimal(2)), 20)
self.assertRaises(IndexError, a.pop, Decimal(25))
def test_remove(self):
a = self.type2test([0, 0, 1])
@ -390,6 +485,10 @@ class CommonTest(seq_tests.CommonTest):
self.assertEqual(u, self.type2test([0, 1, 0, 1, 0, 1]))
u *= 0
self.assertEqual(u, self.type2test([]))
s = self.type2test([])
oldid = id(s)
s *= 10
self.assertEqual(id(s), oldid)
def test_extendedslicing(self):
# subscript

16
Lib/test/test_list.py
View File

@ -18,8 +18,20 @@ class ListTest(list_tests.CommonTest):
self.assertEqual(len([0]), 1)
self.assertEqual(len([0, 1, 2]), 3)
def test_main():
def test_main(verbose=None):
test_support.run_unittest(ListTest)
# verify reference counting
import sys
if verbose and hasattr(sys, "gettotalrefcount"):
import gc
counts = [None] * 5
for i in xrange(len(counts)):
test_support.run_unittest(ListTest)
gc.collect()
counts[i] = sys.gettotalrefcount()
print counts
if __name__ == "__main__":
test_main()
test_main(verbose=True)