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#!/usr/bin/env python
import Cheetah.NameMapper
import Cheetah.Template
import hotshot
import hotshot.stats
import os
import sys
import unittest
from test import pystone
import time
# This can be turned on with the `--debug` flag when running the test
# and will cause the tests to all just dump out how long they took
# insteasd of asserting on duration
DEBUG = False
# TOLERANCE in Pystones
kPS = 1000
TOLERANCE = 0.5*kPS
class DurationError(AssertionError):
pass
_pystone_calibration_mark = None
def _pystone_calibration():
global _pystone_calibration_mark
if not _pystone_calibration_mark:
_pystone_calibration_mark = pystone.pystones(loops=pystone.LOOPS)
return _pystone_calibration_mark
def perftest(max_num_pystones, current_pystone=None):
'''
Performance test decorator based off the 'timedtest'
decorator found in this Active State recipe:
http://code.activestate.com/recipes/440700/
'''
if not isinstance(max_num_pystones, float):
max_num_pystones = float(max_num_pystones)
if not current_pystone:
current_pystone = _pystone_calibration()
def _test(function):
def wrapper(*args, **kw):
start_time = time.time()
try:
return function(*args, **kw)
finally:
total_time = time.time() - start_time
if total_time == 0:
pystone_total_time = 0
else:
pystone_rate = current_pystone[0] / current_pystone[1]
pystone_total_time = total_time / pystone_rate
global DEBUG
if DEBUG:
print 'The test "%s" took: %s pystones' % (function.func_name,
pystone_total_time)
else:
if pystone_total_time > (max_num_pystones + TOLERANCE):
raise DurationError((('Test too long (%.2f Ps, '
'need at most %.2f Ps)')
% (pystone_total_time,
max_num_pystones)))
return wrapper
return _test
class DynamicTemplatePerformanceTest(unittest.TestCase):
loops = 10
#@perftest(1200)
def test_BasicDynamic(self):
template = '''
#def foo(arg1, arg2)
#pass
#end def
'''
for i in xrange(self.loops):
klass = Cheetah.Template.Template.compile(template)
assert klass
test_BasicDynamic = perftest(1200)(test_BasicDynamic)
class PerformanceTest(unittest.TestCase):
iterations = 100000
display = False
def runTest(self):
self.prof = hotshot.Profile('%s.prof' % self.__class__.__name__)
self.prof.start()
for i in xrange(self.iterations):
if hasattr(self, 'performanceSample'):
self.display = True
self.performanceSample()
self.prof.stop()
self.prof.close()
if self.display:
print '>>> %s (%d iterations) ' % (self.__class__.__name__,
self.iterations)
stats = hotshot.stats.load('%s.prof' % self.__class__.__name__)
stats.strip_dirs()
stats.sort_stats('time', 'calls')
stats.print_stats(40)
class DynamicMethodCompilationTest(PerformanceTest):
def performanceSample(self):
template = '''
#import sys
#import os
#def testMethod()
#set foo = [1, 2, 3, 4]
#return $foo[0]
#end def
'''
template = Cheetah.Template.Template.compile(template,
keepRefToGeneratedCode=False)
template = template()
value = template.testMethod()
class DynamicSimpleCompilationTest(PerformanceTest):
def performanceSample(self):
template = '''
#import sys
#import os
#set foo = [1,2,3,4]
Well hello there! This is basic.
Here's an array too: $foo
'''
template = Cheetah.Template.Template.compile(template,
keepRefToGeneratedCode=False)
template = template()
template = unicode(template)
class FilterTest(PerformanceTest):
template = None
def setUp(self):
super(FilterTest, self).setUp()
template = '''
#import sys
#import os
#set foo = [1, 2, 3, 4]
$foo, $foo, $foo
'''
template = Cheetah.Template.Template.compile(template,
keepRefToGeneratedCode=False)
self.template = template()
def performanceSample(self):
value = unicode(self.template)
class LongCompileTest(PerformanceTest):
''' Test the compilation on a sufficiently large template '''
def compile(self, template):
return Cheetah.Template.Template.compile(template, keepRefToGeneratedCode=False)
def performanceSample(self):
template = '''
#import sys
#import Cheetah.Template
#extends Cheetah.Template.Template
#def header()
<center><h2>This is my header</h2></center>
#end def
#def footer()
#return "Huzzah"
#end def
#def scripts()
#pass
#end def
#def respond()
<html>
<head>
<title>${title}</title>
$scripts()
</head>
<body>
$header()
#for $i in $xrange(10)
This is just some stupid page!
<br/>
#end for
<br/>
$footer()
</body>
</html>
#end def
'''
return self.compile(template)
class LongCompile_CompilerSettingsTest(LongCompileTest):
def compile(self, template):
return Cheetah.Template.Template.compile(template, keepRefToGeneratedCode=False,
compilerSettings={'useStackFrames' : True, 'useAutocalling' : True})
class LongCompileAndRun(LongCompileTest):
def performanceSample(self):
template = super(LongCompileAndRun, self).performanceSample()
template = template(searchList=[{'title' : 'foo'}])
template = template.respond()
if __name__ == '__main__':
if '--debug' in sys.argv:
DEBUG = True
sys.argv = [arg for arg in sys.argv if not arg == '--debug']
unittest.main()
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