Spaces:
Sleeping
Sleeping
File size: 7,782 Bytes
eeef81e | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 | class AppTestGenerator:
def test_generator(self):
def f():
yield 1
assert f().next() == 1
def test_generator2(self):
def f():
yield 1
g = f()
assert g.next() == 1
raises(StopIteration, g.next)
def test_attributes(self):
def f():
yield 1
assert g.gi_running
g = f()
assert g.gi_code is f.__code__
assert g.__name__ == 'f'
assert g.gi_frame is not None
assert not g.gi_running
g.next()
assert not g.gi_running
raises(StopIteration, g.next)
assert not g.gi_running
assert g.gi_frame is None
assert g.gi_code is f.__code__
assert g.__name__ == 'f'
def test_generator3(self):
def f():
yield 1
g = f()
assert list(g) == [1]
def test_generator4(self):
def f():
yield 1
g = f()
assert [x for x in g] == [1]
def test_generator5(self):
d = {}
exec """if 1:
def f():
v = (yield )
yield v
g = f()
g.next()
""" in d
g = d['g']
assert g.send(42) == 42
def test_throw1(self):
def f():
yield 2
g = f()
# two arguments version
raises(NameError, g.throw, NameError, "Error")
def test_throw2(self):
def f():
yield 2
g = f()
# single argument version
raises(NameError, g.throw, NameError("Error"))
def test_throw3(self):
def f():
try:
yield 1
yield 2
except:
yield 3
g = f()
assert g.next() == 1
assert g.throw(NameError("Error")) == 3
raises(StopIteration, g.next)
def test_throw4(self):
d = {}
exec """if 1:
def f():
try:
yield 1
v = (yield 2)
except:
yield 3
g = f()
""" in d
g = d['g']
assert g.next() == 1
assert g.next() == 2
assert g.throw(NameError("Error")) == 3
raises(StopIteration, g.next)
def test_throw5(self):
def f():
try:
yield 1
except:
x = 3
try:
yield x
except:
pass
g = f()
g.next()
# String exceptions are not allowed anymore
raises(TypeError, g.throw, "Error")
assert g.throw(Exception) == 3
raises(StopIteration, g.throw, Exception)
def test_throw6(self):
def f():
yield 2
g = f()
raises(NameError, g.throw, NameError, "Error", None)
def test_throw_fail(self):
def f():
yield 1
g = f()
raises(TypeError, g.throw, NameError("Error"), "error")
def test_throw_fail2(self):
def f():
yield 1
g = f()
raises(TypeError, g.throw, list())
def test_throw_fail3(self):
def f():
yield 1
g = f()
raises(TypeError, g.throw, NameError("Error"), None, "not tb object")
def test_throw_finishes_generator(self):
def f():
yield 1
g = f()
assert g.gi_frame is not None
raises(ValueError, g.throw, ValueError)
assert g.gi_frame is None
def test_throw_bug(self):
def f():
try:
x.throw(IndexError) # => "generator already executing"
except ValueError:
yield 1
x = f()
res = list(x)
assert res == [1]
def test_throw_on_finished_generator(self):
def f():
yield 1
g = f()
res = g.next()
assert res == 1
raises(StopIteration, g.next)
raises(NameError, g.throw, NameError)
def test_close(self):
def f():
yield 1
g = f()
assert g.close() is None
def test_close2(self):
def f():
try:
yield 1
except GeneratorExit:
raise StopIteration
g = f()
g.next()
assert g.close() is None
def test_close3(self):
def f():
try:
yield 1
except GeneratorExit:
raise NameError
g = f()
g.next()
raises(NameError, g.close)
def test_close_fail(self):
def f():
try:
yield 1
except GeneratorExit:
yield 2
g = f()
g.next()
raises(RuntimeError, g.close)
def test_close_on_collect(self):
## we need to exec it, else it won't run on python2.4
d = {}
exec """
def f():
try:
yield
finally:
f.x = 42
""".strip() in d
g = d['f']()
g.next()
del g
import gc
gc.collect()
assert d['f'].x == 42
def test_generator_raises_typeerror(self):
def f():
yield 1
g = f()
raises(TypeError, g.send) # one argument required
raises(TypeError, g.send, 1) # not started, must send None
def test_generator_explicit_stopiteration(self):
def f():
yield 1
raise StopIteration
g = f()
assert [x for x in g] == [1]
def test_generator_propagate_stopiteration(self):
def f():
it = iter([1])
while 1: yield it.next()
g = f()
assert [x for x in g] == [1]
def test_generator_restart(self):
def g():
i = me.next()
yield i
me = g()
raises(ValueError, me.next)
def test_generator_expression(self):
exec "res = sum(i*i for i in range(5))"
assert res == 30
def test_generator_expression_2(self):
d = {}
exec """
def f():
total = sum(i for i in [x for x in z])
return total, x
z = [1, 2, 7]
res = f()
""" in d
assert d['res'] == (10, 7)
def test_repr(self):
def myFunc():
yield 1
g = myFunc()
r = repr(g)
assert r.startswith("<generator object myFunc at 0x")
assert list(g) == [1]
assert repr(g) == r
def test_unpackiterable_gen(self):
g = (i*i for i in range(-5, 3))
assert set(g) == set([0, 1, 4, 9, 16, 25])
assert set(g) == set()
assert set(i for i in range(0)) == set()
def test_explicit_stop_iteration_unpackiterable(self):
def f():
yield 1
raise StopIteration
assert tuple(f()) == (1,)
def test_exception_is_cleared_by_yield(self):
def f():
try:
foobar
except NameError:
yield 5
raise # should raise "no active exception to re-raise"
gen = f()
next(gen) # --> 5
try:
next(gen)
except TypeError:
pass
def test_multiple_invalid_sends(self):
def mygen():
yield 42
g = mygen()
raises(TypeError, g.send, 2)
raises(TypeError, g.send, 2)
def test_should_not_inline(space):
from pypy.interpreter.generator import should_not_inline
w_co = space.appexec([], '''():
def g(x):
yield x + 5
return g.__code__
''')
assert should_not_inline(w_co) == False
w_co = space.appexec([], '''():
def g(x):
yield x + 5
yield x + 6
return g.__code__
''')
assert should_not_inline(w_co) == True
|