64
class TestProgress(TestCase):
67
self.top = ChildProgress(_stack=FakeStack(q))
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def test_propogation(self):
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self.top.update('foobles', 1, 2)
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self.assertEqual(self.top.message, 'foobles')
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self.assertEqual(self.top.current, 1)
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self.assertEqual(self.top.total, 2)
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self.assertEqual(self.top.child_fraction, 0)
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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')
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self.assertEqual(self.top.current, 1)
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self.assertEqual(self.top.total, 2)
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self.assertEqual(self.top.child_fraction, 0.5)
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grandchild = ChildProgress(_stack=FakeStack(child))
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grandchild.update('barbells', 1, 2)
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self.assertEqual(self.top.child_fraction, 0.625)
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self.assertEqual(child.child_fraction, 0.5)
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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):
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for implementation in (TTYProgressBar, DotsProgressBar,
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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 = ProgressBarStack(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):
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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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class TestTextProgressView(TestCase):
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"""Tests for text display of progress bars.
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These try to exercise the progressview independently of its construction,
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which is arranged by the TextUIFactory.
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# The ProgressTask now connects directly to the ProgressView, so we can
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# check them independently of the factory or of the determination of what
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view = TextProgressView(out)
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view._avail_width = lambda: 79
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def make_task(self, parent_task, view, msg, curr, total):
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# would normally be done by UIFactory; is done here so that we don't
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task = ProgressTask(parent_task, progress_view=view)
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task.current_cnt = curr
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task.total_cnt = total
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def test_clear(self):
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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
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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
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pb = InstrumentedProgress(to_file=StringIO(), show_eta=False)
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# Just make sure this first few are throttled
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# These messages are throttled, and don't contribute
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for count in xrange(100):
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pb.update('x', count, 300)
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self.assertEqual(0, len(pb.last_updates))
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# These happen too fast, so only one gets through
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for count in xrange(100):
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pb.update('x', count+100, 200)
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self.assertEqual(1, len(pb.last_updates))
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# But all of these go through, don't let the
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# last_update list grow without bound
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for count in xrange(100):
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pb.update('x', count+100, 200)
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self.assertEqual(pb._max_last_updates, len(pb.last_updates))
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class TestProgressTypes(TestCase):
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"""Test that the right ProgressBar gets instantiated at the right time."""
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def get_nested(self, outf, term, env_progress=None):
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"""Setup so that ProgressBar thinks we are in the supplied terminal."""
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orig_term = os.environ.get('TERM')
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orig_progress = os.environ.get('BZR_PROGRESS_BAR')
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os.environ['TERM'] = term
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if env_progress is not None:
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os.environ['BZR_PROGRESS_BAR'] = env_progress
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elif orig_progress is not None:
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del os.environ['BZR_PROGRESS_BAR']
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if orig_term is None:
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del os.environ['TERM']
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os.environ['TERM'] = orig_term
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# We may have never created BZR_PROGRESS_BAR
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# So we can't just delete like we can 'TERM' (which is always set)
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if orig_progress is None:
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if 'BZR_PROGRESS_BAR' in os.environ:
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del os.environ['BZR_PROGRESS_BAR']
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os.environ['BZR_PROGRESS_BAR'] = orig_progress
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self.addCleanup(reset)
223
stack = ProgressBarStack(to_file=outf)
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pb = stack.get_nested()
225
pb.start_time -= 1 # Make sure it is ready to write
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pb.width = 20 # And it is of reasonable size
229
def test_tty_progress(self):
230
# Make sure the ProgressBarStack thinks it is
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# writing out to a terminal, and thus uses a TTYProgressBar
233
pb = self.get_nested(out, 'xterm')
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self.assertIsInstance(pb, TTYProgressBar)
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pb.update('foo', 1, 2)
237
pb.update('bar', 2, 2)
241
self.assertEqual('\r/ [==== ] foo 1/2'
242
'\r- [=======] bar 2/2'
246
def test_dots_progress(self):
247
# Make sure the ProgressBarStack thinks it is
248
# not writing out to a terminal, and thus uses a
250
out = _NonTTYStringIO()
251
pb = self.get_nested(out, 'xterm')
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self.assertIsInstance(pb, DotsProgressBar)
254
pb.update('foo', 1, 2)
255
pb.update('bar', 2, 2)
259
self.assertEqual('foo: .'
264
def test_no_isatty_progress(self):
265
# Make sure ProgressBarStack handles a plain StringIO()
267
out = cStringIO.StringIO()
268
pb = self.get_nested(out, 'xterm')
270
self.assertIsInstance(pb, DotsProgressBar)
272
def test_dumb_progress(self):
273
# Make sure the ProgressBarStack thinks it is writing out to a
274
# terminal, but it is the emacs 'dumb' terminal, so it uses
277
pb = self.get_nested(out, 'dumb')
279
self.assertIsInstance(pb, DotsProgressBar)
281
def test_progress_env_tty(self):
282
# The environ variable BZR_PROGRESS_BAR controls what type of
283
# progress bar we will get, even if it wouldn't usually be that type
286
# Usually, this would be a DotsProgressBar
287
out = cStringIO.StringIO()
288
pb = self.get_nested(out, 'dumb', 'tty')
290
# Even though we are not a tty, the env_var will override
291
self.assertIsInstance(pb, TTYProgressBar)
293
def test_progress_env_dots(self):
294
# Even though we are in a tty, the env_var will override
296
pb = self.get_nested(out, 'xterm', 'dots')
298
self.assertIsInstance(pb, DotsProgressBar)
300
def test_progress_env_none(self):
301
# Even though we are in a valid tty, no progress
303
pb = self.get_nested(out, 'xterm', 'none')
305
self.assertIsInstance(pb, DummyProgress)
307
def test_progress_env_invalid(self):
309
self.assertRaises(errors.InvalidProgressBarType, self.get_nested,
310
out, 'xterm', 'nonexistant')
69
# <https://bugs.launchpad.net/bzr/+bug/611127> clear must actually
70
# send spaces to clear the line
71
out, view = self.make_view()
72
task = self.make_task(None, view, 'reticulating splines', 5, 20)
73
view.show_progress(task)
75
'\r/ reticulating splines 5/20 \r'
79
'\r/ reticulating splines 5/20 \r'
80
+ '\r' + 79 * ' ' + '\r',
83
def test_render_progress_no_bar(self):
84
"""The default view now has a spinner but no bar."""
85
out, view = self.make_view()
86
# view.enable_bar = False
87
task = self.make_task(None, view, 'reticulating splines', 5, 20)
88
view.show_progress(task)
90
'\r/ reticulating splines 5/20 \r'
93
def test_render_progress_easy(self):
94
"""Just one task and one quarter done"""
95
out, view = self.make_view()
96
view.enable_bar = True
97
task = self.make_task(None, view, 'reticulating splines', 5, 20)
98
view.show_progress(task)
100
'\r[####/ ] reticulating splines 5/20 \r'
103
def test_render_progress_nested(self):
104
"""Tasks proportionally contribute to overall progress"""
105
out, view = self.make_view()
106
task = self.make_task(None, view, 'reticulating splines', 0, 2)
107
task2 = self.make_task(task, view, 'stage2', 1, 2)
108
view.show_progress(task2)
109
view.enable_bar = True
110
# so we're in the first half of the main task, and half way through
113
'[####- ] reticulating splines:stage2 1/2 '
114
, view._render_line())
115
# if the nested task is complete, then we're all the way through the
116
# first half of the overall work
117
task2.update('stage2', 2, 2)
119
'[#########\ ] reticulating splines:stage2 2/2 '
120
, view._render_line())
122
def test_render_progress_sub_nested(self):
123
"""Intermediate tasks don't mess up calculation."""
124
out, view = self.make_view()
125
view.enable_bar = True
126
task_a = ProgressTask(None, progress_view=view)
127
task_a.update('a', 0, 2)
128
task_b = ProgressTask(task_a, progress_view=view)
130
task_c = ProgressTask(task_b, progress_view=view)
131
task_c.update('c', 1, 2)
132
# the top-level task is in its first half; the middle one has no
133
# progress indication, just a label; and the bottom one is half done,
134
# so the overall fraction is 1/4
136
'[####| ] a:b:c 1/2 '
137
, view._render_line())
139
def test_render_truncated(self):
140
# when the bar is too long for the terminal, we prefer not to truncate
141
# the counters because they might be interesting, and because
142
# truncating the numbers might be misleading
143
out, view = self.make_view()
144
task_a = ProgressTask(None, progress_view=view)
145
task_a.update('start_' + 'a' * 200 + '_end', 2000, 5000)
146
line = view._render_line()
148
'- start_aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa.. 2000/5000',
150
self.assertEqual(len(line), 79)
153
def test_render_with_activity(self):
154
# if the progress view has activity, it's shown before the spinner
155
out, view = self.make_view()
156
task_a = ProgressTask(None, progress_view=view)
157
view._last_transport_msg = ' 123kB 100kB/s '
158
line = view._render_line()
162
self.assertEqual(len(line), 79)
164
task_a.update('start_' + 'a' * 200 + '_end', 2000, 5000)
165
view._last_transport_msg = ' 123kB 100kB/s '
166
line = view._render_line()
168
' 123kB 100kB/s \\ start_aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa.. 2000/5000',
170
self.assertEqual(len(line), 79)