mirror of
https://github.com/python/cpython.git
synced 2024-12-29 19:55:17 +08:00
19f2aeba67
svn+ssh://pythondev@svn.python.org/python/branches/py3k ........ r86596 | ezio.melotti | 2010-11-20 21:04:17 +0200 (Sat, 20 Nov 2010) | 1 line #9424: Replace deprecated assert* methods in the Python test suite. ........
170 lines
6.2 KiB
Python
170 lines
6.2 KiB
Python
#!/usr/bin/env python3
|
|
|
|
"""Unit tests for the keyword only argument specified in PEP 3102."""
|
|
|
|
__author__ = "Jiwon Seo"
|
|
__email__ = "seojiwon at gmail dot com"
|
|
|
|
import unittest
|
|
from test.support import run_unittest
|
|
|
|
def posonly_sum(pos_arg1, *arg, **kwarg):
|
|
return pos_arg1 + sum(arg) + sum(kwarg.values())
|
|
def keywordonly_sum(*, k1=0, k2):
|
|
return k1 + k2
|
|
def keywordonly_nodefaults_sum(*, k1, k2):
|
|
return k1 + k2
|
|
def keywordonly_and_kwarg_sum(*, k1, k2, **kwarg):
|
|
return k1 + k2 + sum(kwarg.values())
|
|
def mixedargs_sum(a, b=0, *arg, k1, k2=0):
|
|
return a + b + k1 + k2 + sum(arg)
|
|
def mixedargs_sum2(a, b=0, *arg, k1, k2=0, **kwargs):
|
|
return a + b + k1 + k2 + sum(arg) + sum(kwargs.values())
|
|
|
|
def sortnum(*nums, reverse=False):
|
|
return sorted(list(nums), reverse=reverse)
|
|
|
|
def sortwords(*words, reverse=False, **kwargs):
|
|
return sorted(list(words), reverse=reverse)
|
|
|
|
class Foo:
|
|
def __init__(self, *, k1, k2=0):
|
|
self.k1 = k1
|
|
self.k2 = k2
|
|
def set(self, p1, *, k1, k2):
|
|
self.k1 = k1
|
|
self.k2 = k2
|
|
def sum(self):
|
|
return self.k1 + self.k2
|
|
|
|
class KeywordOnlyArgTestCase(unittest.TestCase):
|
|
def assertRaisesSyntaxError(self, codestr):
|
|
def shouldRaiseSyntaxError(s):
|
|
compile(s, "<test>", "single")
|
|
self.assertRaises(SyntaxError, shouldRaiseSyntaxError, codestr)
|
|
|
|
def testSyntaxErrorForFunctionDefinition(self):
|
|
self.assertRaisesSyntaxError("def f(p, *):\n pass\n")
|
|
self.assertRaisesSyntaxError("def f(p1, *, p1=100):\n pass\n")
|
|
self.assertRaisesSyntaxError("def f(p1, *k1, k1=100):\n pass\n")
|
|
self.assertRaisesSyntaxError("def f(p1, *, k1, k1=100):\n pass\n")
|
|
self.assertRaisesSyntaxError("def f(p1, *, **k1):\n pass\n")
|
|
self.assertRaisesSyntaxError("def f(p1, *, k1, **k1):\n pass\n")
|
|
self.assertRaisesSyntaxError("def f(p1, *, None, **k1):\n pass\n")
|
|
self.assertRaisesSyntaxError("def f(p, *, (k1, k2), **kw):\n pass\n")
|
|
|
|
def testSyntaxForManyArguments(self):
|
|
fundef = "def f("
|
|
for i in range(255):
|
|
fundef += "i%d, "%i
|
|
fundef += "*, key=100):\n pass\n"
|
|
self.assertRaisesSyntaxError(fundef)
|
|
|
|
fundef2 = "def foo(i,*,"
|
|
for i in range(255):
|
|
fundef2 += "i%d, "%i
|
|
fundef2 += "lastarg):\n pass\n"
|
|
self.assertRaisesSyntaxError(fundef2)
|
|
|
|
# exactly 255 arguments, should compile ok
|
|
fundef3 = "def f(i,*,"
|
|
for i in range(253):
|
|
fundef3 += "i%d, "%i
|
|
fundef3 += "lastarg):\n pass\n"
|
|
compile(fundef3, "<test>", "single")
|
|
|
|
def testTooManyPositionalErrorMessage(self):
|
|
def f(a, b=None, *, c=None):
|
|
pass
|
|
with self.assertRaises(TypeError) as exc:
|
|
f(1, 2, 3)
|
|
expected = "f() takes at most 2 positional arguments (3 given)"
|
|
self.assertEqual(str(exc.exception), expected)
|
|
|
|
def testSyntaxErrorForFunctionCall(self):
|
|
self.assertRaisesSyntaxError("f(p, k=1, p2)")
|
|
self.assertRaisesSyntaxError("f(p, k1=50, *(1,2), k1=100)")
|
|
|
|
def testRaiseErrorFuncallWithUnexpectedKeywordArgument(self):
|
|
self.assertRaises(TypeError, keywordonly_sum, ())
|
|
self.assertRaises(TypeError, keywordonly_nodefaults_sum, ())
|
|
self.assertRaises(TypeError, Foo, ())
|
|
try:
|
|
keywordonly_sum(k2=100, non_existing_arg=200)
|
|
self.fail("should raise TypeError")
|
|
except TypeError:
|
|
pass
|
|
try:
|
|
keywordonly_nodefaults_sum(k2=2)
|
|
self.fail("should raise TypeError")
|
|
except TypeError:
|
|
pass
|
|
|
|
def testFunctionCall(self):
|
|
self.assertEqual(1, posonly_sum(1))
|
|
self.assertEqual(1+2, posonly_sum(1,**{"2":2}))
|
|
self.assertEqual(1+2+3, posonly_sum(1,*(2,3)))
|
|
self.assertEqual(1+2+3+4, posonly_sum(1,*(2,3),**{"4":4}))
|
|
|
|
self.assertEqual(1, keywordonly_sum(k2=1))
|
|
self.assertEqual(1+2, keywordonly_sum(k1=1, k2=2))
|
|
|
|
self.assertEqual(1+2, keywordonly_and_kwarg_sum(k1=1, k2=2))
|
|
self.assertEqual(1+2+3, keywordonly_and_kwarg_sum(k1=1, k2=2, k3=3))
|
|
self.assertEqual(1+2+3+4,
|
|
keywordonly_and_kwarg_sum(k1=1, k2=2,
|
|
**{"a":3,"b":4}))
|
|
|
|
self.assertEqual(1+2, mixedargs_sum(1, k1=2))
|
|
self.assertEqual(1+2+3, mixedargs_sum(1, 2, k1=3))
|
|
self.assertEqual(1+2+3+4, mixedargs_sum(1, 2, k1=3, k2=4))
|
|
self.assertEqual(1+2+3+4+5, mixedargs_sum(1, 2, 3, k1=4, k2=5))
|
|
|
|
self.assertEqual(1+2, mixedargs_sum2(1, k1=2))
|
|
self.assertEqual(1+2+3, mixedargs_sum2(1, 2, k1=3))
|
|
self.assertEqual(1+2+3+4, mixedargs_sum2(1, 2, k1=3, k2=4))
|
|
self.assertEqual(1+2+3+4+5, mixedargs_sum2(1, 2, 3, k1=4, k2=5))
|
|
self.assertEqual(1+2+3+4+5+6,
|
|
mixedargs_sum2(1, 2, 3, k1=4, k2=5, k3=6))
|
|
self.assertEqual(1+2+3+4+5+6,
|
|
mixedargs_sum2(1, 2, 3, k1=4, **{'k2':5, 'k3':6}))
|
|
|
|
self.assertEqual(1, Foo(k1=1).sum())
|
|
self.assertEqual(1+2, Foo(k1=1,k2=2).sum())
|
|
|
|
self.assertEqual([1,2,3], sortnum(3,2,1))
|
|
self.assertEqual([3,2,1], sortnum(1,2,3, reverse=True))
|
|
|
|
self.assertEqual(['a','b','c'], sortwords('a','c','b'))
|
|
self.assertEqual(['c','b','a'], sortwords('a','c','b', reverse=True))
|
|
self.assertEqual(['c','b','a'],
|
|
sortwords('a','c','b', reverse=True, ignore='ignore'))
|
|
|
|
def testKwDefaults(self):
|
|
def foo(p1,p2=0, *, k1, k2=0):
|
|
return p1 + p2 + k1 + k2
|
|
|
|
self.assertEqual(2, foo.__code__.co_kwonlyargcount)
|
|
self.assertEqual({"k2":0}, foo.__kwdefaults__)
|
|
foo.__kwdefaults__ = {"k1":0}
|
|
try:
|
|
foo(1,k1=10)
|
|
self.fail("__kwdefaults__ is not properly changed")
|
|
except TypeError:
|
|
pass
|
|
|
|
def test_kwonly_methods(self):
|
|
class Example:
|
|
def f(self, *, k1=1, k2=2):
|
|
return k1, k2
|
|
|
|
self.assertEqual(Example().f(k1=1, k2=2), (1, 2))
|
|
self.assertEqual(Example.f(Example(), k1=1, k2=2), (1, 2))
|
|
self.assertRaises(TypeError, Example.f, k1=1, k2=2)
|
|
|
|
def test_main():
|
|
run_unittest(KeywordOnlyArgTestCase)
|
|
|
|
if __name__ == "__main__":
|
|
test_main()
|