58
class TestProgress(TestCase):
63
self.top = ChildProgress(_stack=FakeStack(q))
65
def test_propogation(self):
66
self.top.update('foobles', 1, 2)
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self.assertEqual(self.top.message, 'foobles')
68
self.assertEqual(self.top.current, 1)
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self.assertEqual(self.top.total, 2)
70
self.assertEqual(self.top.child_fraction, 0)
71
child = ChildProgress(_stack=FakeStack(self.top))
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child.update('baubles', 2, 4)
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self.assertEqual(self.top.message, 'foobles')
74
self.assertEqual(self.top.current, 1)
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self.assertEqual(self.top.total, 2)
76
self.assertEqual(self.top.child_fraction, 0.5)
77
grandchild = ChildProgress(_stack=FakeStack(child))
78
grandchild.update('barbells', 1, 2)
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self.assertEqual(self.top.child_fraction, 0.625)
80
self.assertEqual(child.child_fraction, 0.5)
81
child.update('baubles', 3, 4)
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self.assertEqual(child.child_fraction, 0)
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self.assertEqual(self.top.child_fraction, 0.75)
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grandchild.update('barbells', 1, 2)
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self.assertEqual(self.top.child_fraction, 0.875)
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grandchild.update('barbells', 2, 2)
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self.assertEqual(self.top.child_fraction, 1)
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child.update('baubles', 4, 4)
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self.assertEqual(self.top.child_fraction, 1)
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grandchild.update('barbells', 2, 2)
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self.assertEqual(self.top.child_fraction, 1)
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def test_implementations(self):
95
for implementation in (TTYProgressBar, DotsProgressBar,
97
self.check_parent_handling(implementation)
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def check_parent_handling(self, parentclass):
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top = parentclass(to_file=StringIO())
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top.update('foobles', 1, 2)
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child = ChildProgress(_stack=FakeStack(top))
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child.update('baubles', 4, 4)
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top.update('lala', 2, 2)
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child.update('baubles', 4, 4)
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def test_stacking(self):
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self.check_stack(TTYProgressBar, ChildProgress)
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self.check_stack(DotsProgressBar, ChildProgress)
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self.check_stack(DummyProgress, DummyProgress)
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def check_stack(self, parent_class, child_class):
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stack = self.applyDeprecated(
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deprecated_in((1, 12, 0)),
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klass=parent_class, to_file=StringIO())
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parent = stack.get_nested()
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self.assertIs(parent.__class__, parent_class)
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child = stack.get_nested()
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self.assertIs(child.__class__, child_class)
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def test_throttling(self):
129
pb = InstrumentedProgress(to_file=StringIO())
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# instantaneous updates should be squelched
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pb.update('me', 1, 1)
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self.assertTrue(pb.always_throttled)
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pb = InstrumentedProgress(to_file=StringIO())
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# It's like an instant sleep(1)!
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# Updates after a second should not be squelched
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pb.update('me', 1, 1)
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self.assertFalse(pb.always_throttled)
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def test_clear(self):
142
pb = TTYProgressBar(to_file=sio, show_eta=False)
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pb.width = 20 # Just make it easier to test
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# This should not output anything
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# These two should not be displayed because
148
pb.update('foo', 1, 3)
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pb.update('bar', 2, 3)
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# So pb.clear() has nothing to do
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# Make sure the next update isn't throttled
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pb.update('baz', 3, 3)
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self.assertEqual('\r[=========] baz 3/3'
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def test_no_eta(self):
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# An old version of the progress bar would
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# store every update if show_eta was false
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# because the eta routine was where it was
167
pb = InstrumentedProgress(to_file=StringIO(), show_eta=False)
168
# Just make sure this first few are throttled
171
# These messages are throttled, and don't contribute
172
for count in xrange(100):
173
pb.update('x', count, 300)
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self.assertEqual(0, len(pb.last_updates))
179
# These happen too fast, so only one gets through
180
for count in xrange(100):
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pb.update('x', count+100, 200)
182
self.assertEqual(1, len(pb.last_updates))
186
# But all of these go through, don't let the
187
# last_update list grow without bound
188
for count in xrange(100):
189
pb.update('x', count+100, 200)
191
self.assertEqual(pb._max_last_updates, len(pb.last_updates))
194
class TestProgressTypes(TestCase):
195
"""Test that the right ProgressBar gets instantiated at the right time."""
197
def get_nested(self, outf, term, env_progress=None):
198
"""Setup so that ProgressBar thinks we are in the supplied terminal."""
199
orig_term = os.environ.get('TERM')
200
orig_progress = os.environ.get('BZR_PROGRESS_BAR')
201
os.environ['TERM'] = term
202
if env_progress is not None:
203
os.environ['BZR_PROGRESS_BAR'] = env_progress
204
elif orig_progress is not None:
205
del os.environ['BZR_PROGRESS_BAR']
208
if orig_term is None:
209
del os.environ['TERM']
211
os.environ['TERM'] = orig_term
212
# We may have never created BZR_PROGRESS_BAR
213
# So we can't just delete like we can 'TERM' (which is always set)
214
if orig_progress is None:
215
if 'BZR_PROGRESS_BAR' in os.environ:
216
del os.environ['BZR_PROGRESS_BAR']
218
os.environ['BZR_PROGRESS_BAR'] = orig_progress
220
self.addCleanup(reset)
222
stack = self.applyDeprecated(
223
deprecated_in((1, 12, 0)),
226
pb = stack.get_nested()
227
pb.start_time -= 1 # Make sure it is ready to write
228
pb.width = 20 # And it is of reasonable size
231
def test_tty_progress(self):
232
# Make sure the ProgressBarStack thinks it is
233
# writing out to a terminal, and thus uses a TTYProgressBar
235
pb = self.get_nested(out, 'xterm')
236
self.assertIsInstance(pb, TTYProgressBar)
238
pb.update('foo', 1, 2)
239
pb.update('bar', 2, 2)
243
self.assertEqual('\r/ [==== ] foo 1/2'
244
'\r- [=======] bar 2/2'
248
def test_noninteractive_progress(self):
249
out = _NonTTYStringIO()
250
pb = self.get_nested(out, 'xterm')
251
self.assertIsInstance(pb, DummyProgress)
253
pb.update('foo', 1, 2)
254
pb.update('bar', 2, 2)
257
self.assertEqual('', out.getvalue())
259
def test_dots_progress(self):
260
# make sure we get the right progress bar when not on a terminal
261
out = _NonTTYStringIO()
262
pb = self.get_nested(out, 'xterm', 'dots')
263
self.assertIsInstance(pb, DotsProgressBar)
265
pb.update('foo', 1, 2)
266
pb.update('bar', 2, 2)
269
self.assertEqual('foo: .'
274
def test_no_isatty_progress(self):
275
# Make sure ProgressBarStack handles a plain StringIO()
277
out = cStringIO.StringIO()
278
pb = self.get_nested(out, 'xterm')
280
self.assertIsInstance(pb, DummyProgress)
282
def test_dumb_progress(self):
283
# using a terminal that can't do cursor movement
285
pb = self.get_nested(out, 'dumb')
287
self.assertIsInstance(pb, DummyProgress)
289
def test_progress_env_tty(self):
290
# The environ variable BZR_PROGRESS_BAR controls what type of
291
# progress bar we will get, even if it wouldn't usually be that type
294
# Usually, this would be a DotsProgressBar
295
out = cStringIO.StringIO()
296
pb = self.get_nested(out, 'dumb', 'tty')
298
# Even though we are not a tty, the env_var will override
299
self.assertIsInstance(pb, TTYProgressBar)
301
def test_progress_env_none(self):
302
# Even though we are in a valid tty, no progress
304
pb = self.get_nested(out, 'xterm', 'none')
306
self.assertIsInstance(pb, DummyProgress)
308
def test_progress_env_invalid(self):
310
self.assertRaises(errors.InvalidProgressBarType, self.get_nested,
311
out, 'xterm', 'nonexistant')
added
removed
bzrlib/tests/test_progress.py
