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Viewing changes to bzrlib/tests/test_progress.py

  • Committer: Martin Pool
  • Date: 2009-08-14 12:08:08 UTC
  • mto: This revision was merged to the branch mainline in revision 4614.
  • Revision ID: mbp@sourcefrog.net-20090814120808-4gvx7fhg44z29cj3
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bzrlib/tests/test_progress.py
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# Copyright (C) 2006-2010 Canonical Ltd
 
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# Copyright (C) 2006, 2007, 2009 Canonical Ltd
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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    def make_view(self):
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        out = StringIO()
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        view = TextProgressView(out)
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        view._avail_width = lambda: 79
 
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        view._width = 80
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        return out, view
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    def make_task(self, parent_task, view, msg, curr, total):
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        task.total_cnt = total
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        return task
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    def test_render_progress_no_bar(self):
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        """The default view now has a spinner but no bar."""
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        out, view = self.make_view()
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        # view.enable_bar = False
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        task = self.make_task(None, view, 'reticulating splines', 5, 20)
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        view.show_progress(task)
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        self.assertEqual(
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'\r/ reticulating splines 5/20                                                    \r'
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            , out.getvalue())
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    def test_render_progress_easy(self):
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        """Just one task and one quarter done"""
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        out, view = self.make_view()
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        view.enable_bar = True
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        task = self.make_task(None, view, 'reticulating splines', 5, 20)
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        view.show_progress(task)
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        self.assertEqual(
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        task = self.make_task(None, view, 'reticulating splines', 0, 2)
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        task2 = self.make_task(task, view, 'stage2', 1, 2)
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        view.show_progress(task2)
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        view.enable_bar = True
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        # so we're in the first half of the main task, and half way through
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        # that
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        self.assertEqual(
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'[####-               ] reticulating splines:stage2 1/2                         '
 
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r'[####-               ] reticulating splines:stage2 1/2'
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            , view._render_line())
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        # if the nested task is complete, then we're all the way through the
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        # first half of the overall work
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        task2.update('stage2', 2, 2)
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        self.assertEqual(
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'[#########\          ] reticulating splines:stage2 2/2                         '
 
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r'[#########\          ] reticulating splines:stage2 2/2'
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            , view._render_line())
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    def test_render_progress_sub_nested(self):
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        """Intermediate tasks don't mess up calculation."""
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        out, view = self.make_view()
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        view.enable_bar = True
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        task_a = ProgressTask(None, progress_view=view)
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        task_a.update('a', 0, 2)
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        task_b = ProgressTask(task_a, progress_view=view)
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        # progress indication, just a label; and the bottom one is half done,
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        # so the overall fraction is 1/4
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        self.assertEqual(
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'[####|               ] a:b:c 1/2                                               '
 
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            r'[####|               ] a:b:c 1/2'
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            , view._render_line())
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    def test_render_truncated(self):
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        # when the bar is too long for the terminal, we prefer not to truncate
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        # the counters because they might be interesting, and because
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        # truncating the numbers might be misleading
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        out, view = self.make_view()
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        task_a = ProgressTask(None, progress_view=view)
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        task_a.update('start_' + 'a' * 200 + '_end', 2000, 5000)
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        line = view._render_line()
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        self.assertEqual(
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'- start_aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa.. 2000/5000',
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           line) 
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        self.assertEqual(len(line), 79)
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    def test_render_with_activity(self):
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        # if the progress view has activity, it's shown before the spinner
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        out, view = self.make_view()
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        task_a = ProgressTask(None, progress_view=view)
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        view._last_transport_msg = '   123kB   100kB/s '
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        line = view._render_line()
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        self.assertEqual(
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'   123kB   100kB/s /                                                           ',
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           line) 
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        self.assertEqual(len(line), 79)
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        task_a.update('start_' + 'a' * 200 + '_end', 2000, 5000)
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        view._last_transport_msg = '   123kB   100kB/s '
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        line = view._render_line()
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        self.assertEqual(
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'   123kB   100kB/s \\ start_aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa.. 2000/5000',
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           line) 
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        self.assertEqual(len(line), 79)