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# test_performance.py
# Copyright (C) 2008, 2009 Michael Trier (mtrier@gmail.com) and contributors
#
# This module is part of GitPython and is released under
# the BSD License: http://www.opensource.org/licenses/bsd-license.php

from test.testlib import *
from git import *
from time import time

class TestPerformance(TestBase):

    def _query_commit_info(self, c):
        c.author
        c.authored_date
        c.author_tz_offset
        c.committer
        c.committed_date
        c.committer_tz_offset
        c.message
        c.parents
        
    def test_iteration(self):
        num_objs = 0
        num_commits = 0
        
        # find the first commit containing the given path - always do a full 
        # iteration ( restricted to the path in question ), but in fact it should 
        # return quite a lot of commits, we just take one and hence abort the operation
        
        st = time()
        for c in self.rorepo.iter_commits('0.1.6'):
            num_commits += 1
            self._query_commit_info(c)
            for obj in c.tree.traverse():
                obj.size
                num_objs += 1
            # END for each object
        # END for each commit
        elapsed_time = time() - st
        print "Traversed %i Trees and a total of %i unchached objects in %s [s] ( %f objs/s )" % (num_commits, num_objs, elapsed_time, num_objs/elapsed_time) 
        
    def test_commit_traversal(self):
        num_commits = 0
        
        st = time()
        for c in self.rorepo.commit('0.1.6').traverse(branch_first=False):
            num_commits += 1
            self._query_commit_info(c)
        # END for each traversed commit
        elapsed_time = time() - st
        print "Traversed %i Commits in %s [s] ( %f commits/s )" % (num_commits, elapsed_time, num_commits/elapsed_time)