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-rw-r--r--Lib/test/test_int.py63
1 files changed, 62 insertions, 1 deletions
diff --git a/Lib/test/test_int.py b/Lib/test/test_int.py
index fa46212d9b..365f9a247c 100644
--- a/Lib/test/test_int.py
+++ b/Lib/test/test_int.py
@@ -1,6 +1,7 @@
import sys
import unittest
+from test import test_support
from test.test_support import run_unittest, have_unicode
import math
@@ -44,7 +45,27 @@ if have_unicode:
(unichr(0x200), ValueError),
]
-class IntTestCases(unittest.TestCase):
+class IntLongCommonTests(object):
+
+ """Mixin of test cases to share between both test_int and test_long."""
+
+ # Change to int or long in the TestCase subclass.
+ ntype = None
+
+ def test_no_args(self):
+ self.assertEqual(self.ntype(), 0)
+
+ def test_keyword_args(self):
+ # Test invoking constructor using keyword arguments.
+ self.assertEqual(self.ntype(x=1.2), 1)
+ self.assertEqual(self.ntype('100', base=2), 4)
+ self.assertEqual(self.ntype(x='100', base=2), 4)
+ self.assertRaises(TypeError, self.ntype, base=10)
+ self.assertRaises(TypeError, self.ntype, base=0)
+
+class IntTestCases(IntLongCommonTests, unittest.TestCase):
+
+ ntype = int
def test_basic(self):
self.assertEqual(int(314), 314)
@@ -315,6 +336,46 @@ class IntTestCases(unittest.TestCase):
self.assertEqual(int(float(2**54+10)), 2**54+8)
self.assertEqual(int(float(2**54+11)), 2**54+12)
+ def test_valid_non_numeric_input_types_for_x(self):
+ # Test possible valid non-numeric types for x, including subclasses
+ # of the allowed built-in types.
+ class CustomStr(str): pass
+ values = ['100', CustomStr('100')]
+
+ if have_unicode:
+ class CustomUnicode(unicode): pass
+ values += [unicode('100'), CustomUnicode(unicode('100'))]
+
+ for x in values:
+ msg = 'x has value %s and type %s' % (x, type(x).__name__)
+ try:
+ self.assertEqual(int(x), 100, msg=msg)
+ self.assertEqual(int(x, 2), 4, msg=msg)
+ except TypeError, err:
+ raise AssertionError('For %s got TypeError: %s' %
+ (type(x).__name__, err))
+
+ def test_error_on_string_float_for_x(self):
+ self.assertRaises(ValueError, int, '1.2')
+
+ def test_error_on_bytearray_for_x(self):
+ self.assertRaises(TypeError, int, bytearray('100'), 2)
+
+ def test_error_on_invalid_int_bases(self):
+ for base in [-1, 1, 1000]:
+ self.assertRaises(ValueError, int, '100', base)
+
+ def test_error_on_string_base(self):
+ self.assertRaises(TypeError, int, 100, base='foo')
+
+ @test_support.cpython_only
+ def test_small_ints(self):
+ self.assertIs(int('10'), 10)
+ self.assertIs(int('-1'), -1)
+ if have_unicode:
+ self.assertIs(int(u'10'), 10)
+ self.assertIs(int(u'-1'), -1)
+
def test_intconversion(self):
# Test __int__()
class ClassicMissingMethods: