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Viewing changes to bzrlib/benchmarks/bench_log.py

  • Committer: Aaron Bentley
  • Date: 2007-07-25 19:32:22 UTC
  • mto: (1551.19.24 Aaron's mergeable stuff)
  • mto: This revision was merged to the branch mainline in revision 2664.
  • Revision ID: abentley@panoramicfeedback.com-20070725193222-lcq4z4980ffd4bf5
Stop using _merge_helper for merging

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bzrlib/benchmarks/bench_log.py
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from bzrlib.transform import TreeTransform
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from bzrlib.workingtree import WorkingTree
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class LinesDone(Exception):
 
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    """Raised when `LineConsumer` reaches the required number of lines."""
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    pass
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class LineConsumer(object):
 
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    """Count lines that are produced.
 
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    When the required number of lines have been reached, raise `LinesDone`.
 
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    """
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    def __init__(self, required_lines):
 
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        """Create a new consumer.
 
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        :param required_lines: How many lines must be produced.
 
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        :type required_lines: integer
 
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        """
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        self.required_lines = required_lines
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    def write(self, text):
 
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        """Write some text to the black hole.
 
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        But count how many lines have been written.
 
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        :param text: A string that would be written.
 
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        :raise LinesDone: when the required number of lines has been reached.
 
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        :return: None
 
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        """
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        self.required_lines -= text.count('\n')
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        if self.required_lines < 0:
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            raise LinesDone()
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class LogBenchmark(Benchmark):
 
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    """Benchmarks for ``'bzr log'`` performance."""
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    def test_log(self):
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        """Run log in a many-commit tree.""" 
 
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        """Run log in a many-commit tree."""
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        tree = self.make_many_commit_tree(hardlink=True)
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        lf = log_formatter('long', to_file=StringIO())
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        self.time(show_log, tree.branch, lf, direction='reverse')
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    def test_cmd_log(self):
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        """Test execution of the log command.""" 
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        tree = self.make_many_commit_tree(hardlink=True)
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        self.time(self.run_bzr, 'log', '-r', '-4..')
 
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        self.time(self.run_bzr, ['log', '-r', '-4..'])
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    def test_cmd_log_subprocess(self):
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        """Text startup and execution of the log command."""