2 def foo(): pass # keep the line number constant
5 from twisted.trial import unittest
7 from allmydata.util import bencode, idlib, humanreadable, mathutil
8 from allmydata.util import assertutil, fileutil
11 class IDLib(unittest.TestCase):
13 self.failUnlessEqual(idlib.b2a("\x12\x34"), "ne4y")
14 def test_b2a_or_none(self):
15 self.failUnlessEqual(idlib.b2a_or_none(None), None)
16 self.failUnlessEqual(idlib.b2a_or_none("\x12\x34"), "ne4y")
18 self.failUnlessEqual(idlib.a2b("ne4y"), "\x12\x34")
19 self.failUnlessRaises(AssertionError, idlib.a2b, "b0gus")
21 class NoArgumentException(Exception):
25 class HumanReadable(unittest.TestCase):
28 self.failUnlessEqual(hr(foo), "<foo() at test_util.py:2>")
29 self.failUnlessEqual(hr(self.test_repr),
30 "<bound method HumanReadable.test_repr of <allmydata.test.test_util.HumanReadable testMethod=test_repr>>")
31 self.failUnlessEqual(hr(1L), "1")
32 self.failUnlessEqual(hr(10**40),
33 "100000000000000000...000000000000000000")
34 self.failUnlessEqual(hr(self), "<allmydata.test.test_util.HumanReadable testMethod=test_repr>")
35 self.failUnlessEqual(hr([1,2]), "[1, 2]")
36 self.failUnlessEqual(hr({1:2}), "{1:2}")
41 hr(e) == "<RuntimeError: ()>" # python-2.4
42 or hr(e) == "RuntimeError()") # python-2.5
44 raise RuntimeError("oops")
47 hr(e) == "<RuntimeError: 'oops'>" # python-2.4
48 or hr(e) == "RuntimeError('oops',)") # python-2.5
50 raise NoArgumentException
53 hr(e) == "<NoArgumentException>" # python-2.4
54 or hr(e) == "NoArgumentException()") # python-2.5
60 class Bencode(unittest.TestCase):
61 def test_bencode(self):
63 self.failUnlessEqual(e(4), "i4e")
64 self.failUnlessEqual(e([1,2]), "li1ei2ee")
65 self.failUnlessEqual(e(MyList([1,2])), "li1ei2ee")
66 self.failUnlessEqual(e({1:2}), "di1ei2ee")
67 self.failUnlessEqual(e(u"a"), "u1:a")
68 self.failUnlessEqual(e([True,False]), "lb1b0e")
69 self.failUnlessEqual(e(1.5), "f1.5e")
70 self.failUnlessEqual(e("foo"), "3:foo")
72 self.failUnlessEqual(d("li1ei2ee"), [1,2])
73 self.failUnlessEqual(d("u1:a"), u"a")
74 self.failUnlessRaises(ValueError, d, "u10:short")
75 self.failUnlessEqual(d("lb1b0e"), [True,False])
76 self.failUnlessRaises(ValueError, d, "b2")
77 self.failUnlessEqual(d("f1.5e"), 1.5)
78 self.failUnlessEqual(d("3:foo"), "foo")
79 self.failUnlessRaises(ValueError, d,
80 "38:When doing layout, always plan ah")
81 # ooh! fascinating! bdecode requires string keys! I think this ought
83 #self.failUnlessEqual(d("di1ei2ee"), {1:2})
84 self.failUnlessEqual(d("d1:ai2eu1:bi3ee"), {"a":2, u"b":3})
85 self.failUnlessRaises(ValueError, d, "di1ei2ee")
86 self.failUnlessRaises(ValueError, d, "d1:ai1e1:ai2ee")
88 self.failUnlessRaises(ValueError, d, "i1ei2e")
90 # now run all the module's builtin tests
91 bencode.test_decode_raw_string()
92 bencode.test_encode_and_decode_unicode_results_in_unicode_type()
93 bencode.test_encode_and_decode_unicode_at_least_preserves_the_content_even_if_it_flattens_the_type()
94 bencode.test_dict_forbids_non_string_key()
95 bencode.test_dict_forbids_key_repeat()
96 bencode.test_empty_dict()
97 bencode.test_dict_allows_unicode_keys()
98 bencode.test_ValueError_in_decode_unknown()
99 bencode.test_encode_and_decode_none()
100 bencode.test_encode_and_decode_long()
101 bencode.test_encode_and_decode_int()
102 bencode.test_encode_and_decode_float()
103 bencode.test_encode_and_decode_bool()
104 #bencode.test_decode_noncanonical_int()
105 bencode.test_encode_and_decode_dict()
106 bencode.test_encode_and_decode_list()
107 bencode.test_encode_and_decode_tuple()
108 bencode.test_encode_and_decode_empty_dict()
109 bencode.test_encode_and_decode_complex_object()
110 bencode.test_unfinished_list()
111 bencode.test_unfinished_dict()
112 bencode.test_unsupported_type()
114 class Math(unittest.TestCase):
115 def test_div_ceil(self):
116 f = mathutil.div_ceil
117 self.failUnlessEqual(f(0, 1), 0)
118 self.failUnlessEqual(f(0, 2), 0)
119 self.failUnlessEqual(f(0, 3), 0)
120 self.failUnlessEqual(f(1, 3), 1)
121 self.failUnlessEqual(f(2, 3), 1)
122 self.failUnlessEqual(f(3, 3), 1)
123 self.failUnlessEqual(f(4, 3), 2)
124 self.failUnlessEqual(f(5, 3), 2)
125 self.failUnlessEqual(f(6, 3), 2)
126 self.failUnlessEqual(f(7, 3), 3)
128 def test_next_multiple(self):
129 f = mathutil.next_multiple
130 self.failUnlessEqual(f(5, 1), 5)
131 self.failUnlessEqual(f(5, 2), 6)
132 self.failUnlessEqual(f(5, 3), 6)
133 self.failUnlessEqual(f(5, 4), 8)
134 self.failUnlessEqual(f(5, 5), 5)
135 self.failUnlessEqual(f(5, 6), 6)
136 self.failUnlessEqual(f(32, 1), 32)
137 self.failUnlessEqual(f(32, 2), 32)
138 self.failUnlessEqual(f(32, 3), 33)
139 self.failUnlessEqual(f(32, 4), 32)
140 self.failUnlessEqual(f(32, 5), 35)
141 self.failUnlessEqual(f(32, 6), 36)
142 self.failUnlessEqual(f(32, 7), 35)
143 self.failUnlessEqual(f(32, 8), 32)
144 self.failUnlessEqual(f(32, 9), 36)
145 self.failUnlessEqual(f(32, 10), 40)
146 self.failUnlessEqual(f(32, 11), 33)
147 self.failUnlessEqual(f(32, 12), 36)
148 self.failUnlessEqual(f(32, 13), 39)
149 self.failUnlessEqual(f(32, 14), 42)
150 self.failUnlessEqual(f(32, 15), 45)
151 self.failUnlessEqual(f(32, 16), 32)
152 self.failUnlessEqual(f(32, 17), 34)
153 self.failUnlessEqual(f(32, 18), 36)
154 self.failUnlessEqual(f(32, 589), 589)
156 def test_pad_size(self):
157 f = mathutil.pad_size
158 self.failUnlessEqual(f(0, 4), 0)
159 self.failUnlessEqual(f(1, 4), 3)
160 self.failUnlessEqual(f(2, 4), 2)
161 self.failUnlessEqual(f(3, 4), 1)
162 self.failUnlessEqual(f(4, 4), 0)
163 self.failUnlessEqual(f(5, 4), 3)
165 def test_is_power_of_k(self):
166 f = mathutil.is_power_of_k
167 for i in range(1, 100):
168 if i in (1, 2, 4, 8, 16, 32, 64):
169 self.failUnless(f(i, 2), "but %d *is* a power of 2" % i)
171 self.failIf(f(i, 2), "but %d is *not* a power of 2" % i)
172 for i in range(1, 100):
173 if i in (1, 3, 9, 27, 81):
174 self.failUnless(f(i, 3), "but %d *is* a power of 3" % i)
176 self.failIf(f(i, 3), "but %d is *not* a power of 3" % i)
178 def test_next_power_of_k(self):
179 f = mathutil.next_power_of_k
180 self.failUnlessEqual(f(0,2), 1)
181 self.failUnlessEqual(f(1,2), 1)
182 self.failUnlessEqual(f(2,2), 2)
183 self.failUnlessEqual(f(3,2), 4)
184 self.failUnlessEqual(f(4,2), 4)
185 for i in range(5, 8): self.failUnlessEqual(f(i,2), 8, "%d" % i)
186 for i in range(9, 16): self.failUnlessEqual(f(i,2), 16, "%d" % i)
187 for i in range(17, 32): self.failUnlessEqual(f(i,2), 32, "%d" % i)
188 for i in range(33, 64): self.failUnlessEqual(f(i,2), 64, "%d" % i)
189 for i in range(65, 100): self.failUnlessEqual(f(i,2), 128, "%d" % i)
191 self.failUnlessEqual(f(0,3), 1)
192 self.failUnlessEqual(f(1,3), 1)
193 self.failUnlessEqual(f(2,3), 3)
194 self.failUnlessEqual(f(3,3), 3)
195 for i in range(4, 9): self.failUnlessEqual(f(i,3), 9, "%d" % i)
196 for i in range(10, 27): self.failUnlessEqual(f(i,3), 27, "%d" % i)
197 for i in range(28, 81): self.failUnlessEqual(f(i,3), 81, "%d" % i)
198 for i in range(82, 200): self.failUnlessEqual(f(i,3), 243, "%d" % i)
202 self.failUnlessEqual(f([1,2,3]), 2)
203 self.failUnlessEqual(f([0,0,0,4]), 1)
204 self.failUnlessAlmostEqual(f([0.0, 1.0, 1.0]), .666666666666)
207 class Asserts(unittest.TestCase):
208 def should_assert(self, func, *args, **kwargs):
210 func(*args, **kwargs)
211 except AssertionError, e:
214 self.fail("assert failed with non-AssertionError: %s" % e)
215 self.fail("assert was not caught")
217 def should_not_assert(self, func, *args, **kwargs):
219 regexp = kwargs["re"]
222 func(*args, **kwargs)
223 except AssertionError, e:
224 self.fail("assertion fired when it should not have: %s" % e)
226 self.fail("assertion (which shouldn't have failed) failed with non-AssertionError: %s" % e)
230 def test_assert(self):
231 f = assertutil._assert
232 self.should_assert(f)
233 self.should_assert(f, False)
234 self.should_not_assert(f, True)
236 m = self.should_assert(f, False, "message")
237 self.failUnlessEqual(m, "'message' <type 'str'>", m)
238 m = self.should_assert(f, False, "message1", othermsg=12)
239 self.failUnlessEqual("'message1' <type 'str'>, othermsg: 12 <type 'int'>", m)
240 m = self.should_assert(f, False, othermsg="message2")
241 self.failUnlessEqual("othermsg: 'message2' <type 'str'>", m)
243 def test_precondition(self):
244 f = assertutil.precondition
245 self.should_assert(f)
246 self.should_assert(f, False)
247 self.should_not_assert(f, True)
249 m = self.should_assert(f, False, "message")
250 self.failUnlessEqual("precondition: 'message' <type 'str'>", m)
251 m = self.should_assert(f, False, "message1", othermsg=12)
252 self.failUnlessEqual("precondition: 'message1' <type 'str'>, othermsg: 12 <type 'int'>", m)
253 m = self.should_assert(f, False, othermsg="message2")
254 self.failUnlessEqual("precondition: othermsg: 'message2' <type 'str'>", m)
256 def test_postcondition(self):
257 f = assertutil.postcondition
258 self.should_assert(f)
259 self.should_assert(f, False)
260 self.should_not_assert(f, True)
262 m = self.should_assert(f, False, "message")
263 self.failUnlessEqual("postcondition: 'message' <type 'str'>", m)
264 m = self.should_assert(f, False, "message1", othermsg=12)
265 self.failUnlessEqual("postcondition: 'message1' <type 'str'>, othermsg: 12 <type 'int'>", m)
266 m = self.should_assert(f, False, othermsg="message2")
267 self.failUnlessEqual("postcondition: othermsg: 'message2' <type 'str'>", m)
269 class FileUtil(unittest.TestCase):
270 def mkdir(self, basedir, path, mode=0777):
271 fn = os.path.join(basedir, path)
272 fileutil.make_dirs(fn, mode)
274 def touch(self, basedir, path, mode=None, data="touch\n"):
275 fn = os.path.join(basedir, path)
282 def test_rm_dir(self):
283 basedir = "util/FileUtil/test_rm_dir"
284 fileutil.make_dirs(basedir)
285 # create it again to test idempotency
286 fileutil.make_dirs(basedir)
287 d = os.path.join(basedir, "doomed")
289 self.touch(d, "a/b/1.txt")
290 self.touch(d, "a/b/2.txt", 0444)
291 self.touch(d, "a/b/3.txt", 0)
293 self.touch(d, "a/c/1.txt")
294 self.touch(d, "a/c/2.txt", 0444)
295 self.touch(d, "a/c/3.txt", 0)
296 os.chmod(os.path.join(d, "a/c"), 0444)
298 self.touch(d, "a/d/1.txt")
299 self.touch(d, "a/d/2.txt", 0444)
300 self.touch(d, "a/d/3.txt", 0)
301 os.chmod(os.path.join(d, "a/d"), 0)
304 self.failIf(os.path.exists(d))
305 # remove it again to test idempotency
308 def test_remove_if_possible(self):
309 basedir = "util/FileUtil/test_remove_if_possible"
310 fileutil.make_dirs(basedir)
311 self.touch(basedir, "here")
312 fn = os.path.join(basedir, "here")
313 fileutil.remove_if_possible(fn)
314 self.failIf(os.path.exists(fn))
315 fileutil.remove_if_possible(fn) # should be idempotent
316 fileutil.rm_dir(basedir)
317 fileutil.remove_if_possible(fn) # should survive errors
319 def test_open_or_create(self):
320 basedir = "util/FileUtil/test_open_or_create"
321 fileutil.make_dirs(basedir)
322 fn = os.path.join(basedir, "here")
323 f = fileutil.open_or_create(fn)
326 f = fileutil.open_or_create(fn)
333 self.failUnlessEqual(data, "stuff.more.")
335 def test_NamedTemporaryDirectory(self):
336 basedir = "util/FileUtil/test_NamedTemporaryDirectory"
337 fileutil.make_dirs(basedir)
338 td = fileutil.NamedTemporaryDirectory(dir=basedir)
340 self.failUnless(basedir in name)
341 self.failUnless(basedir in repr(td))
342 self.failUnless(os.path.isdir(name))
344 # it is conceivable that we need to force gc here, but I'm not sure
345 self.failIf(os.path.isdir(name))
347 def test_rename(self):
348 basedir = "util/FileUtil/test_rename"
349 fileutil.make_dirs(basedir)
350 self.touch(basedir, "here")
351 fn = os.path.join(basedir, "here")
352 fn2 = os.path.join(basedir, "there")
353 fileutil.rename(fn, fn2)
354 self.failIf(os.path.exists(fn))
355 self.failUnless(os.path.exists(fn2))
358 basedir = "util/FileUtil/test_du"
359 fileutil.make_dirs(basedir)
360 d = os.path.join(basedir, "space-consuming")
362 self.touch(d, "a/b/1.txt", data="a"*10)
363 self.touch(d, "a/b/2.txt", data="b"*11)
365 self.touch(d, "a/c/1.txt", data="c"*12)
366 self.touch(d, "a/c/2.txt", data="d"*13)
368 used = fileutil.du(basedir)
369 self.failUnlessEqual(10+11+12+13, used)