/Lib/test/test_getargs2.py

http://unladen-swallow.googlecode.com/ · Python · 312 lines · 220 code · 48 blank · 44 comment · 13 complexity · d09f4ba3dba7d58a9543d87d003d1270 MD5 · raw file

  1. import unittest
  2. from test import test_support
  3. from _testcapi import getargs_keywords
  4. import warnings
  5. warnings.filterwarnings("ignore",
  6. category=DeprecationWarning,
  7. message=".*integer argument expected, got float",
  8. module=__name__)
  9. warnings.filterwarnings("ignore",
  10. category=DeprecationWarning,
  11. message=".*integer argument expected, got float",
  12. module="unittest")
  13. """
  14. > How about the following counterproposal. This also changes some of
  15. > the other format codes to be a little more regular.
  16. >
  17. > Code C type Range check
  18. >
  19. > b unsigned char 0..UCHAR_MAX
  20. > h signed short SHRT_MIN..SHRT_MAX
  21. > B unsigned char none **
  22. > H unsigned short none **
  23. > k * unsigned long none
  24. > I * unsigned int 0..UINT_MAX
  25. > i int INT_MIN..INT_MAX
  26. > l long LONG_MIN..LONG_MAX
  27. > K * unsigned long long none
  28. > L long long LLONG_MIN..LLONG_MAX
  29. > Notes:
  30. >
  31. > * New format codes.
  32. >
  33. > ** Changed from previous "range-and-a-half" to "none"; the
  34. > range-and-a-half checking wasn't particularly useful.
  35. Plus a C API or two, e.g. PyInt_AsLongMask() ->
  36. unsigned long and PyInt_AsLongLongMask() -> unsigned
  37. long long (if that exists).
  38. """
  39. LARGE = 0x7FFFFFFF
  40. VERY_LARGE = 0xFF0000121212121212121242L
  41. from _testcapi import UCHAR_MAX, USHRT_MAX, UINT_MAX, ULONG_MAX, INT_MAX, \
  42. INT_MIN, LONG_MIN, LONG_MAX, PY_SSIZE_T_MIN, PY_SSIZE_T_MAX
  43. # fake, they are not defined in Python's header files
  44. LLONG_MAX = 2**63-1
  45. LLONG_MIN = -2**63
  46. ULLONG_MAX = 2**64-1
  47. class Long:
  48. def __int__(self):
  49. return 99L
  50. class Int:
  51. def __int__(self):
  52. return 99
  53. class Unsigned_TestCase(unittest.TestCase):
  54. def test_b(self):
  55. from _testcapi import getargs_b
  56. # b returns 'unsigned char', and does range checking (0 ... UCHAR_MAX)
  57. self.failUnlessEqual(3, getargs_b(3.14))
  58. self.failUnlessEqual(99, getargs_b(Long()))
  59. self.failUnlessEqual(99, getargs_b(Int()))
  60. self.assertRaises(OverflowError, getargs_b, -1)
  61. self.failUnlessEqual(0, getargs_b(0))
  62. self.failUnlessEqual(UCHAR_MAX, getargs_b(UCHAR_MAX))
  63. self.assertRaises(OverflowError, getargs_b, UCHAR_MAX + 1)
  64. self.failUnlessEqual(42, getargs_b(42))
  65. self.failUnlessEqual(42, getargs_b(42L))
  66. self.assertRaises(OverflowError, getargs_b, VERY_LARGE)
  67. def test_B(self):
  68. from _testcapi import getargs_B
  69. # B returns 'unsigned char', no range checking
  70. self.failUnlessEqual(3, getargs_B(3.14))
  71. self.failUnlessEqual(99, getargs_B(Long()))
  72. self.failUnlessEqual(99, getargs_B(Int()))
  73. self.failUnlessEqual(UCHAR_MAX, getargs_B(-1))
  74. self.failUnlessEqual(UCHAR_MAX, getargs_B(-1L))
  75. self.failUnlessEqual(0, getargs_B(0))
  76. self.failUnlessEqual(UCHAR_MAX, getargs_B(UCHAR_MAX))
  77. self.failUnlessEqual(0, getargs_B(UCHAR_MAX+1))
  78. self.failUnlessEqual(42, getargs_B(42))
  79. self.failUnlessEqual(42, getargs_B(42L))
  80. self.failUnlessEqual(UCHAR_MAX & VERY_LARGE, getargs_B(VERY_LARGE))
  81. def test_H(self):
  82. from _testcapi import getargs_H
  83. # H returns 'unsigned short', no range checking
  84. self.failUnlessEqual(3, getargs_H(3.14))
  85. self.failUnlessEqual(99, getargs_H(Long()))
  86. self.failUnlessEqual(99, getargs_H(Int()))
  87. self.failUnlessEqual(USHRT_MAX, getargs_H(-1))
  88. self.failUnlessEqual(0, getargs_H(0))
  89. self.failUnlessEqual(USHRT_MAX, getargs_H(USHRT_MAX))
  90. self.failUnlessEqual(0, getargs_H(USHRT_MAX+1))
  91. self.failUnlessEqual(42, getargs_H(42))
  92. self.failUnlessEqual(42, getargs_H(42L))
  93. self.failUnlessEqual(VERY_LARGE & USHRT_MAX, getargs_H(VERY_LARGE))
  94. def test_I(self):
  95. from _testcapi import getargs_I
  96. # I returns 'unsigned int', no range checking
  97. self.failUnlessEqual(3, getargs_I(3.14))
  98. self.failUnlessEqual(99, getargs_I(Long()))
  99. self.failUnlessEqual(99, getargs_I(Int()))
  100. self.failUnlessEqual(UINT_MAX, getargs_I(-1))
  101. self.failUnlessEqual(0, getargs_I(0))
  102. self.failUnlessEqual(UINT_MAX, getargs_I(UINT_MAX))
  103. self.failUnlessEqual(0, getargs_I(UINT_MAX+1))
  104. self.failUnlessEqual(42, getargs_I(42))
  105. self.failUnlessEqual(42, getargs_I(42L))
  106. self.failUnlessEqual(VERY_LARGE & UINT_MAX, getargs_I(VERY_LARGE))
  107. def test_k(self):
  108. from _testcapi import getargs_k
  109. # k returns 'unsigned long', no range checking
  110. # it does not accept float, or instances with __int__
  111. self.assertRaises(TypeError, getargs_k, 3.14)
  112. self.assertRaises(TypeError, getargs_k, Long())
  113. self.assertRaises(TypeError, getargs_k, Int())
  114. self.failUnlessEqual(ULONG_MAX, getargs_k(-1))
  115. self.failUnlessEqual(0, getargs_k(0))
  116. self.failUnlessEqual(ULONG_MAX, getargs_k(ULONG_MAX))
  117. self.failUnlessEqual(0, getargs_k(ULONG_MAX+1))
  118. self.failUnlessEqual(42, getargs_k(42))
  119. self.failUnlessEqual(42, getargs_k(42L))
  120. self.failUnlessEqual(VERY_LARGE & ULONG_MAX, getargs_k(VERY_LARGE))
  121. class Signed_TestCase(unittest.TestCase):
  122. def test_i(self):
  123. from _testcapi import getargs_i
  124. # i returns 'int', and does range checking (INT_MIN ... INT_MAX)
  125. self.failUnlessEqual(3, getargs_i(3.14))
  126. self.failUnlessEqual(99, getargs_i(Long()))
  127. self.failUnlessEqual(99, getargs_i(Int()))
  128. self.assertRaises(OverflowError, getargs_i, INT_MIN-1)
  129. self.failUnlessEqual(INT_MIN, getargs_i(INT_MIN))
  130. self.failUnlessEqual(INT_MAX, getargs_i(INT_MAX))
  131. self.assertRaises(OverflowError, getargs_i, INT_MAX+1)
  132. self.failUnlessEqual(42, getargs_i(42))
  133. self.failUnlessEqual(42, getargs_i(42L))
  134. self.assertRaises(OverflowError, getargs_i, VERY_LARGE)
  135. def test_l(self):
  136. from _testcapi import getargs_l
  137. # l returns 'long', and does range checking (LONG_MIN ... LONG_MAX)
  138. self.failUnlessEqual(3, getargs_l(3.14))
  139. self.failUnlessEqual(99, getargs_l(Long()))
  140. self.failUnlessEqual(99, getargs_l(Int()))
  141. self.assertRaises(OverflowError, getargs_l, LONG_MIN-1)
  142. self.failUnlessEqual(LONG_MIN, getargs_l(LONG_MIN))
  143. self.failUnlessEqual(LONG_MAX, getargs_l(LONG_MAX))
  144. self.assertRaises(OverflowError, getargs_l, LONG_MAX+1)
  145. self.failUnlessEqual(42, getargs_l(42))
  146. self.failUnlessEqual(42, getargs_l(42L))
  147. self.assertRaises(OverflowError, getargs_l, VERY_LARGE)
  148. def test_n(self):
  149. from _testcapi import getargs_n
  150. # n returns 'Py_ssize_t', and does range checking
  151. # (PY_SSIZE_T_MIN ... PY_SSIZE_T_MAX)
  152. self.failUnlessEqual(3, getargs_n(3.14))
  153. self.failUnlessEqual(99, getargs_n(Long()))
  154. self.failUnlessEqual(99, getargs_n(Int()))
  155. self.assertRaises(OverflowError, getargs_n, PY_SSIZE_T_MIN-1)
  156. self.failUnlessEqual(PY_SSIZE_T_MIN, getargs_n(PY_SSIZE_T_MIN))
  157. self.failUnlessEqual(PY_SSIZE_T_MAX, getargs_n(PY_SSIZE_T_MAX))
  158. self.assertRaises(OverflowError, getargs_n, PY_SSIZE_T_MAX+1)
  159. self.failUnlessEqual(42, getargs_n(42))
  160. self.failUnlessEqual(42, getargs_n(42L))
  161. self.assertRaises(OverflowError, getargs_n, VERY_LARGE)
  162. class LongLong_TestCase(unittest.TestCase):
  163. def test_L(self):
  164. from _testcapi import getargs_L
  165. # L returns 'long long', and does range checking (LLONG_MIN ... LLONG_MAX)
  166. self.failUnlessRaises(TypeError, getargs_L, "Hello")
  167. self.failUnlessEqual(3, getargs_L(3.14))
  168. self.failUnlessEqual(99, getargs_L(Long()))
  169. self.failUnlessEqual(99, getargs_L(Int()))
  170. self.assertRaises(OverflowError, getargs_L, LLONG_MIN-1)
  171. self.failUnlessEqual(LLONG_MIN, getargs_L(LLONG_MIN))
  172. self.failUnlessEqual(LLONG_MAX, getargs_L(LLONG_MAX))
  173. self.assertRaises(OverflowError, getargs_L, LLONG_MAX+1)
  174. self.failUnlessEqual(42, getargs_L(42))
  175. self.failUnlessEqual(42, getargs_L(42L))
  176. self.assertRaises(OverflowError, getargs_L, VERY_LARGE)
  177. def test_K(self):
  178. from _testcapi import getargs_K
  179. # K return 'unsigned long long', no range checking
  180. self.assertRaises(TypeError, getargs_K, 3.14)
  181. self.assertRaises(TypeError, getargs_K, Long())
  182. self.assertRaises(TypeError, getargs_K, Int())
  183. self.failUnlessEqual(ULLONG_MAX, getargs_K(ULLONG_MAX))
  184. self.failUnlessEqual(0, getargs_K(0))
  185. self.failUnlessEqual(0, getargs_K(ULLONG_MAX+1))
  186. self.failUnlessEqual(42, getargs_K(42))
  187. self.failUnlessEqual(42, getargs_K(42L))
  188. self.failUnlessEqual(VERY_LARGE & ULLONG_MAX, getargs_K(VERY_LARGE))
  189. class Tuple_TestCase(unittest.TestCase):
  190. def test_tuple(self):
  191. from _testcapi import getargs_tuple
  192. ret = getargs_tuple(1, (2, 3))
  193. self.assertEquals(ret, (1,2,3))
  194. # make sure invalid tuple arguments are handled correctly
  195. class seq:
  196. def __len__(self):
  197. return 2
  198. def __getitem__(self, n):
  199. raise ValueError
  200. self.assertRaises(TypeError, getargs_tuple, 1, seq())
  201. class Keywords_TestCase(unittest.TestCase):
  202. def test_positional_args(self):
  203. # using all positional args
  204. self.assertEquals(
  205. getargs_keywords((1,2), 3, (4,(5,6)), (7,8,9), 10),
  206. (1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
  207. )
  208. def test_mixed_args(self):
  209. # positional and keyword args
  210. self.assertEquals(
  211. getargs_keywords((1,2), 3, (4,(5,6)), arg4=(7,8,9), arg5=10),
  212. (1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
  213. )
  214. def test_keyword_args(self):
  215. # all keywords
  216. self.assertEquals(
  217. getargs_keywords(arg1=(1,2), arg2=3, arg3=(4,(5,6)), arg4=(7,8,9), arg5=10),
  218. (1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
  219. )
  220. def test_optional_args(self):
  221. # missing optional keyword args, skipping tuples
  222. self.assertEquals(
  223. getargs_keywords(arg1=(1,2), arg2=3, arg5=10),
  224. (1, 2, 3, -1, -1, -1, -1, -1, -1, 10)
  225. )
  226. def test_required_args(self):
  227. # required arg missing
  228. try:
  229. getargs_keywords(arg1=(1,2))
  230. except TypeError, err:
  231. self.assertEquals(str(err), "Required argument 'arg2' (pos 2) not found")
  232. else:
  233. self.fail('TypeError should have been raised')
  234. def test_too_many_args(self):
  235. try:
  236. getargs_keywords((1,2),3,(4,(5,6)),(7,8,9),10,111)
  237. except TypeError, err:
  238. self.assertEquals(str(err), "function takes at most 5 arguments (6 given)")
  239. else:
  240. self.fail('TypeError should have been raised')
  241. def test_invalid_keyword(self):
  242. # extraneous keyword arg
  243. try:
  244. getargs_keywords((1,2),3,arg5=10,arg666=666)
  245. except TypeError, err:
  246. self.assertEquals(str(err), "'arg666' is an invalid keyword argument for this function")
  247. else:
  248. self.fail('TypeError should have been raised')
  249. def test_main():
  250. tests = [Signed_TestCase, Unsigned_TestCase, Tuple_TestCase, Keywords_TestCase]
  251. try:
  252. from _testcapi import getargs_L, getargs_K
  253. except ImportError:
  254. pass # PY_LONG_LONG not available
  255. else:
  256. tests.append(LongLong_TestCase)
  257. test_support.run_unittest(*tests)
  258. if __name__ == "__main__":
  259. test_main()