Viewing file:  Template.py (11.77 KB) -rw-r--r--
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import pdb
import sys
import types
import os
import os.path
import tempfile
import shutil
import unittest
from Cheetah.Template import Template
majorVer, minorVer = sys.version_info[0], sys.version_info[1]
versionTuple = (majorVer, minorVer)
class TemplateTest(unittest.TestCase):
pass
class ClassMethods_compile(TemplateTest):
"""I am using the same Cheetah source for each test to root out clashes
caused by the compile caching in Template.compile().
"""
def test_basicUsage(self):
klass = Template.compile(source='$foo')
t = klass(namespaces={'foo':1234})
assert str(t)=='1234'
def test_baseclassArg(self):
klass = Template.compile(source='$foo', baseclass=dict)
t = klass({'foo':1234})
assert str(t)=='1234'
klass2 = Template.compile(source='$foo', baseclass=klass)
t = klass2({'foo':1234})
assert str(t)=='1234'
klass3 = Template.compile(source='#implements dummy\n$bar', baseclass=klass2)
t = klass3({'foo':1234})
assert str(t)=='1234'
klass4 = Template.compile(source='$foo', baseclass='dict')
t = klass4({'foo':1234})
assert str(t)=='1234'
def test_moduleFileCaching(self):
if versionTuple < (2, 3):
return
tmpDir = tempfile.mkdtemp()
try:
#print tmpDir
assert os.path.exists(tmpDir)
klass = Template.compile(source='$foo',
cacheModuleFilesForTracebacks=True,
cacheDirForModuleFiles=tmpDir)
mod = sys.modules[klass.__module__]
#print mod.__file__
assert os.path.exists(mod.__file__)
assert os.path.dirname(mod.__file__)==tmpDir
finally:
shutil.rmtree(tmpDir, True)
def test_classNameArg(self):
klass = Template.compile(source='$foo', className='foo123')
assert klass.__name__=='foo123'
t = klass(namespaces={'foo':1234})
assert str(t)=='1234'
def test_moduleNameArg(self):
klass = Template.compile(source='$foo', moduleName='foo99')
mod = sys.modules['foo99']
assert klass.__name__=='foo99'
t = klass(namespaces={'foo':1234})
assert str(t)=='1234'
klass = Template.compile(source='$foo',
moduleName='foo1',
className='foo2')
mod = sys.modules['foo1']
assert klass.__name__=='foo2'
t = klass(namespaces={'foo':1234})
assert str(t)=='1234'
def test_mainMethodNameArg(self):
klass = Template.compile(source='$foo',
className='foo123',
mainMethodName='testMeth')
assert klass.__name__=='foo123'
t = klass(namespaces={'foo':1234})
#print t.generatedClassCode()
assert str(t)=='1234'
assert t.testMeth()=='1234'
klass = Template.compile(source='$foo',
moduleName='fooXXX',
className='foo123',
mainMethodName='testMeth',
baseclass=dict)
assert klass.__name__=='foo123'
t = klass({'foo':1234})
#print t.generatedClassCode()
assert str(t)=='1234'
assert t.testMeth()=='1234'
def test_moduleGlobalsArg(self):
klass = Template.compile(source='$foo',
moduleGlobals={'foo':1234})
t = klass()
assert str(t)=='1234'
klass2 = Template.compile(source='$foo', baseclass='Test1',
moduleGlobals={'Test1':dict})
t = klass2({'foo':1234})
assert str(t)=='1234'
klass3 = Template.compile(source='$foo', baseclass='Test1',
moduleGlobals={'Test1':dict, 'foo':1234})
t = klass3()
assert str(t)=='1234'
def test_keepRefToGeneratedCodeArg(self):
klass = Template.compile(source='$foo',
className='unique58',
cacheCompilationResults=False,
keepRefToGeneratedCode=False)
t = klass(namespaces={'foo':1234})
assert str(t)=='1234'
assert not t.generatedModuleCode()
klass2 = Template.compile(source='$foo',
className='unique58',
keepRefToGeneratedCode=True)
t = klass2(namespaces={'foo':1234})
assert str(t)=='1234'
assert t.generatedModuleCode()
klass3 = Template.compile(source='$foo',
className='unique58',
keepRefToGeneratedCode=False)
t = klass3(namespaces={'foo':1234})
assert str(t)=='1234'
# still there as this class came from the cache
assert t.generatedModuleCode()
def test_compilationCache(self):
klass = Template.compile(source='$foo',
className='unique111',
cacheCompilationResults=False)
t = klass(namespaces={'foo':1234})
assert str(t)=='1234'
assert not klass._CHEETAH_isInCompilationCache
# this time it will place it in the cache
klass = Template.compile(source='$foo',
className='unique111',
cacheCompilationResults=True)
t = klass(namespaces={'foo':1234})
assert str(t)=='1234'
assert klass._CHEETAH_isInCompilationCache
# by default it will be in the cache
klass = Template.compile(source='$foo',
className='unique999099')
t = klass(namespaces={'foo':1234})
assert str(t)=='1234'
assert klass._CHEETAH_isInCompilationCache
class ClassMethods_subclass(TemplateTest):
def test_basicUsage(self):
klass = Template.compile(source='$foo', baseclass=dict)
t = klass({'foo':1234})
assert str(t)=='1234'
klass2 = klass.subclass(source='$foo')
t = klass2({'foo':1234})
assert str(t)=='1234'
klass3 = klass2.subclass(source='#implements dummy\n$bar')
t = klass3({'foo':1234})
assert str(t)=='1234'
class Preprocessors(TemplateTest):
def test_basicUsage1(self):
src='''\
%set foo = @a
$(@foo*10)
@a'''
src = '\n'.join([ln.strip() for ln in src.splitlines()])
preprocessors = {'tokens':'@ %',
'namespaces':{'a':99}
}
klass = Template.compile(src, preprocessors=preprocessors)
assert str(klass())=='990\n99'
def test_normalizePreprocessorArgVariants(self):
src='%set foo = 12\n%%comment\n$(@foo*10)'
class Settings1: tokens = '@ %'
Settings1 = Settings1()
from Cheetah.Template import TemplatePreprocessor
settings = Template._normalizePreprocessorSettings(Settings1)
preprocObj = TemplatePreprocessor(settings)
def preprocFunc(source, file):
return '$(12*10)', None
class TemplateSubclass(Template):
pass
compilerSettings = {'cheetahVarStartToken': '@',
'directiveStartToken': '%',
'commentStartToken': '%%',
}
for arg in ['@ %',
{'tokens':'@ %'},
{'compilerSettings':compilerSettings},
{'compilerSettings':compilerSettings,
'templateInitArgs':{}},
{'tokens':'@ %',
'templateAPIClass':TemplateSubclass},
Settings1,
preprocObj,
preprocFunc,
]:
klass = Template.compile(src, preprocessors=arg)
assert str(klass())=='120'
def test_complexUsage(self):
src='''\
%set foo = @a
%def func1: #def func(arg): $arg("***")
%% comment
$(@foo*10)
@func1
$func(lambda x:c"--$x--@a")'''
src = '\n'.join([ln.strip() for ln in src.splitlines()])
for arg in [{'tokens':'@ %', 'namespaces':{'a':99} },
{'tokens':'@ %', 'namespaces':{'a':99} },
]:
klass = Template.compile(src, preprocessors=arg)
t = klass()
assert str(t)=='990\n--***--99'
def test_i18n(self):
src='''\
%i18n: This is a $string that needs translation
%i18n id="foo", domain="root": This is a $string that needs translation
'''
src = '\n'.join([ln.strip() for ln in src.splitlines()])
klass = Template.compile(src, preprocessors='@ %', baseclass=dict)
t = klass({'string':'bit of text'})
#print str(t), repr(str(t))
assert str(t)==('This is a bit of text that needs translation\n'*2)[:-1]
class TryExceptImportTest(TemplateTest):
def test_FailCase(self):
''' Test situation where an inline #import statement will get relocated '''
source = '''
#def myFunction()
Ahoy!
#try
#import sys
#except ImportError
$print "This will never happen!"
#end try
#end def
'''
# This should raise an IndentationError (if the bug exists)
klass = Template.compile(source=source, compilerSettings={'useLegacyImportMode' : False})
t = klass(namespaces={'foo' : 1234})
class ClassMethodSupport(TemplateTest):
def test_BasicDecorator(self):
if sys.version_info[0] == 2 and sys.version_info[1] == 3:
print('This version of Python doesn\'t support decorators, skipping tests')
return
template = '''
#@classmethod
#def myClassMethod()
#return '$foo = %s' % $foo
#end def
'''
template = Template.compile(source=template)
try:
rc = template.myClassMethod(foo='bar')
assert rc == '$foo = bar', (rc, 'Template class method didn\'t return what I expected')
except AttributeError, ex:
self.fail(ex)
class StaticMethodSupport(TemplateTest):
def test_BasicDecorator(self):
if sys.version_info[0] == 2 and sys.version_info[1] == 3:
print('This version of Python doesn\'t support decorators, skipping tests')
return
template = '''
#@staticmethod
#def myStaticMethod()
#return '$foo = %s' % $foo
#end def
'''
template = Template.compile(source=template)
try:
rc = template.myStaticMethod(foo='bar')
assert rc == '$foo = bar', (rc, 'Template class method didn\'t return what I expected')
except AttributeError, ex:
self.fail(ex)
class Useless(object):
def boink(self):
return [1, 2, 3]
class MultipleInheritanceSupport(TemplateTest):
def runTest(self):
template = '''
#extends Template, Useless
#def foo()
#return [4,5] + $boink()
#end def
'''
template = Template.compile(template,
moduleGlobals={'Useless' : Useless},
compilerSettings={'autoImportForExtendsDirective' : False})
template = template()
result = template.foo()
assert result == [4, 5, 1, 2, 3], (result, 'Unexpected result')
##################################################
## if run from the command line ##
if __name__ == '__main__':
unittest.main()
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