Initial commit of OpenSPARC T2 design and verification files.
[OpenSPARC-T2-DV] / tools / src / nas,5.n2.os.2 / lib / python / lib / python2.4 / test / test_os.py
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AT
1# As a test suite for the os module, this is woefully inadequate, but this
2# does add tests for a few functions which have been determined to be more
3# portable than they had been thought to be.
4
5import os
6import unittest
7import warnings
8from test import test_support
9
10warnings.filterwarnings("ignore", "tempnam", RuntimeWarning, __name__)
11warnings.filterwarnings("ignore", "tmpnam", RuntimeWarning, __name__)
12
13class TemporaryFileTests(unittest.TestCase):
14 def setUp(self):
15 self.files = []
16 os.mkdir(test_support.TESTFN)
17
18 def tearDown(self):
19 for name in self.files:
20 os.unlink(name)
21 os.rmdir(test_support.TESTFN)
22
23 def check_tempfile(self, name):
24 # make sure it doesn't already exist:
25 self.failIf(os.path.exists(name),
26 "file already exists for temporary file")
27 # make sure we can create the file
28 open(name, "w")
29 self.files.append(name)
30
31 def test_tempnam(self):
32 if not hasattr(os, "tempnam"):
33 return
34 warnings.filterwarnings("ignore", "tempnam", RuntimeWarning,
35 r"test_os$")
36 self.check_tempfile(os.tempnam())
37
38 name = os.tempnam(test_support.TESTFN)
39 self.check_tempfile(name)
40
41 name = os.tempnam(test_support.TESTFN, "pfx")
42 self.assert_(os.path.basename(name)[:3] == "pfx")
43 self.check_tempfile(name)
44
45 def test_tmpfile(self):
46 if not hasattr(os, "tmpfile"):
47 return
48 fp = os.tmpfile()
49 fp.write("foobar")
50 fp.seek(0,0)
51 s = fp.read()
52 fp.close()
53 self.assert_(s == "foobar")
54
55 def test_tmpnam(self):
56 import sys
57 if not hasattr(os, "tmpnam"):
58 return
59 warnings.filterwarnings("ignore", "tmpnam", RuntimeWarning,
60 r"test_os$")
61 name = os.tmpnam()
62 if sys.platform in ("win32",):
63 # The Windows tmpnam() seems useless. From the MS docs:
64 #
65 # The character string that tmpnam creates consists of
66 # the path prefix, defined by the entry P_tmpdir in the
67 # file STDIO.H, followed by a sequence consisting of the
68 # digit characters '0' through '9'; the numerical value
69 # of this string is in the range 1 - 65,535. Changing the
70 # definitions of L_tmpnam or P_tmpdir in STDIO.H does not
71 # change the operation of tmpnam.
72 #
73 # The really bizarre part is that, at least under MSVC6,
74 # P_tmpdir is "\\". That is, the path returned refers to
75 # the root of the current drive. That's a terrible place to
76 # put temp files, and, depending on privileges, the user
77 # may not even be able to open a file in the root directory.
78 self.failIf(os.path.exists(name),
79 "file already exists for temporary file")
80 else:
81 self.check_tempfile(name)
82
83# Test attributes on return values from os.*stat* family.
84class StatAttributeTests(unittest.TestCase):
85 def setUp(self):
86 os.mkdir(test_support.TESTFN)
87 self.fname = os.path.join(test_support.TESTFN, "f1")
88 f = open(self.fname, 'wb')
89 f.write("ABC")
90 f.close()
91
92 def tearDown(self):
93 os.unlink(self.fname)
94 os.rmdir(test_support.TESTFN)
95
96 def test_stat_attributes(self):
97 if not hasattr(os, "stat"):
98 return
99
100 import stat
101 result = os.stat(self.fname)
102
103 # Make sure direct access works
104 self.assertEquals(result[stat.ST_SIZE], 3)
105 self.assertEquals(result.st_size, 3)
106
107 import sys
108
109 # Make sure all the attributes are there
110 members = dir(result)
111 for name in dir(stat):
112 if name[:3] == 'ST_':
113 attr = name.lower()
114 self.assertEquals(getattr(result, attr),
115 result[getattr(stat, name)])
116 self.assert_(attr in members)
117
118 try:
119 result[200]
120 self.fail("No exception thrown")
121 except IndexError:
122 pass
123
124 # Make sure that assignment fails
125 try:
126 result.st_mode = 1
127 self.fail("No exception thrown")
128 except TypeError:
129 pass
130
131 try:
132 result.st_rdev = 1
133 self.fail("No exception thrown")
134 except (AttributeError, TypeError):
135 pass
136
137 try:
138 result.parrot = 1
139 self.fail("No exception thrown")
140 except AttributeError:
141 pass
142
143 # Use the stat_result constructor with a too-short tuple.
144 try:
145 result2 = os.stat_result((10,))
146 self.fail("No exception thrown")
147 except TypeError:
148 pass
149
150 # Use the constructr with a too-long tuple.
151 try:
152 result2 = os.stat_result((0,1,2,3,4,5,6,7,8,9,10,11,12,13,14))
153 except TypeError:
154 pass
155
156
157 def test_statvfs_attributes(self):
158 if not hasattr(os, "statvfs"):
159 return
160
161 import statvfs
162 try:
163 result = os.statvfs(self.fname)
164 except OSError, e:
165 # On AtheOS, glibc always returns ENOSYS
166 import errno
167 if e.errno == errno.ENOSYS:
168 return
169
170 # Make sure direct access works
171 self.assertEquals(result.f_bfree, result[statvfs.F_BFREE])
172
173 # Make sure all the attributes are there
174 members = dir(result)
175 for name in dir(statvfs):
176 if name[:2] == 'F_':
177 attr = name.lower()
178 self.assertEquals(getattr(result, attr),
179 result[getattr(statvfs, name)])
180 self.assert_(attr in members)
181
182 # Make sure that assignment really fails
183 try:
184 result.f_bfree = 1
185 self.fail("No exception thrown")
186 except TypeError:
187 pass
188
189 try:
190 result.parrot = 1
191 self.fail("No exception thrown")
192 except AttributeError:
193 pass
194
195 # Use the constructor with a too-short tuple.
196 try:
197 result2 = os.statvfs_result((10,))
198 self.fail("No exception thrown")
199 except TypeError:
200 pass
201
202 # Use the constructr with a too-long tuple.
203 try:
204 result2 = os.statvfs_result((0,1,2,3,4,5,6,7,8,9,10,11,12,13,14))
205 except TypeError:
206 pass
207
208from test import mapping_tests
209
210class EnvironTests(mapping_tests.BasicTestMappingProtocol):
211 """check that os.environ object conform to mapping protocol"""
212 type2test = None
213 def _reference(self):
214 return {"KEY1":"VALUE1", "KEY2":"VALUE2", "KEY3":"VALUE3"}
215 def _empty_mapping(self):
216 os.environ.clear()
217 return os.environ
218 def setUp(self):
219 self.__save = dict(os.environ)
220 os.environ.clear()
221 def tearDown(self):
222 os.environ.clear()
223 os.environ.update(self.__save)
224
225class WalkTests(unittest.TestCase):
226 """Tests for os.walk()."""
227
228 def test_traversal(self):
229 import os
230 from os.path import join
231
232 # Build:
233 # TESTFN/ a file kid and two directory kids
234 # tmp1
235 # SUB1/ a file kid and a directory kid
236 # tmp2
237 # SUB11/ no kids
238 # SUB2/ just a file kid
239 # tmp3
240 sub1_path = join(test_support.TESTFN, "SUB1")
241 sub11_path = join(sub1_path, "SUB11")
242 sub2_path = join(test_support.TESTFN, "SUB2")
243 tmp1_path = join(test_support.TESTFN, "tmp1")
244 tmp2_path = join(sub1_path, "tmp2")
245 tmp3_path = join(sub2_path, "tmp3")
246
247 # Create stuff.
248 os.makedirs(sub11_path)
249 os.makedirs(sub2_path)
250 for path in tmp1_path, tmp2_path, tmp3_path:
251 f = file(path, "w")
252 f.write("I'm " + path + " and proud of it. Blame test_os.\n")
253 f.close()
254
255 # Walk top-down.
256 all = list(os.walk(test_support.TESTFN))
257 self.assertEqual(len(all), 4)
258 # We can't know which order SUB1 and SUB2 will appear in.
259 # Not flipped: TESTFN, SUB1, SUB11, SUB2
260 # flipped: TESTFN, SUB2, SUB1, SUB11
261 flipped = all[0][1][0] != "SUB1"
262 all[0][1].sort()
263 self.assertEqual(all[0], (test_support.TESTFN, ["SUB1", "SUB2"], ["tmp1"]))
264 self.assertEqual(all[1 + flipped], (sub1_path, ["SUB11"], ["tmp2"]))
265 self.assertEqual(all[2 + flipped], (sub11_path, [], []))
266 self.assertEqual(all[3 - 2 * flipped], (sub2_path, [], ["tmp3"]))
267
268 # Prune the search.
269 all = []
270 for root, dirs, files in os.walk(test_support.TESTFN):
271 all.append((root, dirs, files))
272 # Don't descend into SUB1.
273 if 'SUB1' in dirs:
274 # Note that this also mutates the dirs we appended to all!
275 dirs.remove('SUB1')
276 self.assertEqual(len(all), 2)
277 self.assertEqual(all[0], (test_support.TESTFN, ["SUB2"], ["tmp1"]))
278 self.assertEqual(all[1], (sub2_path, [], ["tmp3"]))
279
280 # Walk bottom-up.
281 all = list(os.walk(test_support.TESTFN, topdown=False))
282 self.assertEqual(len(all), 4)
283 # We can't know which order SUB1 and SUB2 will appear in.
284 # Not flipped: SUB11, SUB1, SUB2, TESTFN
285 # flipped: SUB2, SUB11, SUB1, TESTFN
286 flipped = all[3][1][0] != "SUB1"
287 all[3][1].sort()
288 self.assertEqual(all[3], (test_support.TESTFN, ["SUB1", "SUB2"], ["tmp1"]))
289 self.assertEqual(all[flipped], (sub11_path, [], []))
290 self.assertEqual(all[flipped + 1], (sub1_path, ["SUB11"], ["tmp2"]))
291 self.assertEqual(all[2 - 2 * flipped], (sub2_path, [], ["tmp3"]))
292
293 # Tear everything down. This is a decent use for bottom-up on
294 # Windows, which doesn't have a recursive delete command. The
295 # (not so) subtlety is that rmdir will fail unless the dir's
296 # kids are removed first, so bottom up is essential.
297 for root, dirs, files in os.walk(test_support.TESTFN, topdown=False):
298 for name in files:
299 os.remove(join(root, name))
300 for name in dirs:
301 os.rmdir(join(root, name))
302 os.rmdir(test_support.TESTFN)
303
304class MakedirTests (unittest.TestCase):
305 def setUp(self):
306 os.mkdir(test_support.TESTFN)
307
308 def test_makedir(self):
309 base = test_support.TESTFN
310 path = os.path.join(base, 'dir1', 'dir2', 'dir3')
311 os.makedirs(path) # Should work
312 path = os.path.join(base, 'dir1', 'dir2', 'dir3', 'dir4')
313 os.makedirs(path)
314
315 # Try paths with a '.' in them
316 self.failUnlessRaises(OSError, os.makedirs, os.curdir)
317 path = os.path.join(base, 'dir1', 'dir2', 'dir3', 'dir4', 'dir5', os.curdir)
318 os.makedirs(path)
319 path = os.path.join(base, 'dir1', os.curdir, 'dir2', 'dir3', 'dir4',
320 'dir5', 'dir6')
321 os.makedirs(path)
322
323
324
325
326 def tearDown(self):
327 path = os.path.join(test_support.TESTFN, 'dir1', 'dir2', 'dir3',
328 'dir4', 'dir5', 'dir6')
329 # If the tests failed, the bottom-most directory ('../dir6')
330 # may not have been created, so we look for the outermost directory
331 # that exists.
332 while not os.path.exists(path) and path != test_support.TESTFN:
333 path = os.path.dirname(path)
334
335 os.removedirs(path)
336
337class DevNullTests (unittest.TestCase):
338 def test_devnull(self):
339 f = file(os.devnull, 'w')
340 f.write('hello')
341 f.close()
342 f = file(os.devnull, 'r')
343 self.assertEqual(f.read(), '')
344 f.close()
345
346class URandomTests (unittest.TestCase):
347 def test_urandom(self):
348 try:
349 self.assertEqual(len(os.urandom(1)), 1)
350 self.assertEqual(len(os.urandom(10)), 10)
351 self.assertEqual(len(os.urandom(100)), 100)
352 self.assertEqual(len(os.urandom(1000)), 1000)
353 except NotImplementedError:
354 pass
355
356def test_main():
357 test_support.run_unittest(
358 TemporaryFileTests,
359 StatAttributeTests,
360 EnvironTests,
361 WalkTests,
362 MakedirTests,
363 DevNullTests,
364 URandomTests
365 )
366
367if __name__ == "__main__":
368 test_main()