1
# Copyright (C) 2006 Canonical Ltd
3
# This program is free software; you can redistribute it and/or modify
4
# it under the terms of the GNU General Public License as published by
5
# the Free Software Foundation; either version 2 of the License, or
6
# (at your option) any later version.
8
# This program is distributed in the hope that it will be useful,
9
# but WITHOUT ANY WARRANTY; without even the implied warranty of
10
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11
# GNU General Public License for more details.
13
# You should have received a copy of the GNU General Public License
14
# along with this program; if not, write to the Free Software
15
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17
"""Tests for tree transform performance"""
22
from bzrlib.benchmarks import Benchmark
23
from bzrlib.log import log_formatter, show_log
24
from bzrlib.osutils import pathjoin
25
from cStringIO import StringIO
26
from bzrlib.transform import TreeTransform
27
from bzrlib.workingtree import WorkingTree
29
class LinesDone(Exception):
32
class LineConsumer(object):
34
def __init__(self, required_lines):
35
self.required_lines = required_lines
37
def write(self, text):
38
self.required_lines -= text.count('\n')
39
if self.required_lines < 0:
43
class LogBenchmark(Benchmark):
46
"""Run log in a many-commit tree."""
47
tree = self.make_many_commit_tree(hardlink=True)
48
lf = log_formatter('long', to_file=StringIO())
49
self.time(show_log, tree.branch, lf, direction='reverse')
51
def test_merge_log(self):
52
"""Run log in a tree with many merges"""
53
tree = self.make_heavily_merged_tree(hardlink=True)
54
lf = log_formatter('short', to_file=StringIO())
55
self.time(show_log, tree.branch, lf, direction='reverse')
57
def test_log_screenful(self):
58
"""Simulate log --long|less"""
59
self.screenful_tester('long')
61
def test_log_screenful_line(self):
62
"""Simulate log --line|less"""
63
self.screenful_tester('line')
65
def test_log_screenful_short(self):
66
"""Simulate log --short|less"""
67
self.screenful_tester('short')
69
def screenful_tester(self, formatter):
70
"""Run show_log, but stop after 25 lines are generated"""
71
tree = self.make_many_commit_tree(hardlink=True)
73
lf = log_formatter(formatter, to_file=LineConsumer(25))
75
show_log(tree.branch, lf, direction='reverse')
79
raise Exception, "LinesDone not raised"
80
self.time(log_screenful)
82
def test_cmd_log(self):
83
"""Test execution of the log command."""
84
tree = self.make_many_commit_tree(hardlink=True)
85
self.time(self.run_bzr, 'log', '-r', '-4..')
87
def test_cmd_log_subprocess(self):
88
"""Text startup and execution of the log command."""
89
tree = self.make_many_commit_tree(hardlink=True)
90
self.time(self.run_bzr_subprocess, 'log', '-r', '-4..')
92
def test_log_verbose(self):
93
"""'verbose' log -- shows file changes"""
94
tree = self.make_many_commit_tree(hardlink=True)
95
lf = log_formatter('long', to_file=StringIO())
96
self.time(show_log, tree.branch, lf, direction='reverse', verbose=True)