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test_template.py
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test_template.py
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import tw2.core as twc, testapi
import webob as wo
import os
from nose.tools import raises, eq_
from tw2.core.template import reset_engine_name_cache
# TBD: only test engines that are installed
engines = ['genshi', 'mako']
class TestWD(twc.Widget):
test = twc.Param(default='bob')
class TestTemplate(object):
def setUp(self):
testapi.setup()
def _check_render(self, template, data, expected, engine=None):
if engine:
mw = twc.make_middleware(None, preferred_rendering_engines=[engine])
testapi.request(1, mw)
out = twc.template.EngineManager().render(template, 'string', data)
assert(isinstance(out, unicode))
assert out == expected, out
def test_auto_select_engine(self):
for engine in engines:
#set up the default renderers
yield self._check_render, 'tw2.core.test_templates.simple', {'test':engine}, '<p>TEST %s</p>'%engine, engine
@raises(twc.template.EngineError)
def test_auto_select_unavailable_engine(self):
engine = 'mako'
self._check_render('tw2.core.test_templates.simple_genshi', {'test':engine}, '<p>TEST %s</p>'%engine, engine)
def test_auto_select_cache_works(self):
engine='genshi'
args = 'tw2.core.test_templates.simple_genshi', 'string', {'test':engine}
em = twc.template.EngineManager()
out = em.render(*args)
assert(isinstance(out, unicode))
assert out == '<p>TEST genshi</p>', out
out = em.render(*args)
assert(isinstance(out, unicode))
assert out == '<p>TEST genshi</p>', out
def test_auto_select_unavailable_engine_not_strict(self):
engine = 'mako'
mw = twc.make_middleware(None, preferred_rendering_engines=[engine], strict_engine_selection=False)
testapi.request(501, mw)
self._check_render('tw2.core.test_templates.simple_genshi', {'test':'blah!'}, '<p>TEST blah!</p>')
def test_engines(self):
for engine in engines:
print "Testing %s..." % engine
out = twc.template.EngineManager().render('%s:tw2.core.test_templates.simple_%s' % (engine, engine), 'string', {'test':'test1'})
assert(isinstance(out, unicode))
assert(out == '<p>TEST test1</p>')
def test_engines_unicode(self):
for engine in engines:
print "Testing %s..." % engine
out = twc.template.EngineManager().render('%s:tw2.core.test_templates.simple_%s' % (engine, engine), 'string', {'test':'test\u1234'})
assert(out == '<p>TEST test\u1234</p>')
def test_engine_dupe(self):
em = twc.template.EngineManager()
t = em[engines[0]]
try:
em.load_engine(engines[0])
assert(False)
except twc.EngineError, e:
assert(str(e) == "Template engine '%s' is already loaded" % engines[0])
def test_engine_notfound(self):
try:
t = twc.template.EngineManager()['fred']
assert(False)
except twc.EngineError, e:
eq_(str(e), "No template engine for 'fred'")
def test_extra_vars(self):
eng = twc.template.EngineManager()
for engine in engines:
# mako is exempt
if engine == 'mako':
continue
print "Testing %s..." % engine
eng.load_engine(engine, extra_vars_func=lambda: {'test':'wobble'})
out = eng.render('%s:tw2.core.test_templates.simple_%s' % (engine, engine), 'string', {})
assert(out == '<p>TEST wobble</p>')
def test_nesting(self):
"Check that templates can be correctly nested, in any combination"
eng = twc.template.EngineManager()
for outer in engines:
for inner in engines:
print 'Testing %s on %s' % (inner, outer)
test = eng.render('%s:tw2.core.test_templates.simple_%s' % (inner, inner), outer, {'test':'test1'})
out = eng.render('%s:tw2.core.test_templates.simple_%s' % (outer, outer), 'string', {'test':test})
print out
assert(out == '<p>TEST <p>TEST test1</p></p>')
def test_widget_display(self):
twc.core.request_local()['middleware'] = twc.make_middleware(None)
mtest = TestWD(id='x')
for eng in engines:
print eng
test = mtest.req()
test.template = '%s:tw2.core.test_templates.inner_%s' % (eng, eng)
out = test.display()
assert(out == '<p>TEST bob</p>')
def test_widget_nesting(self):
twc.core.request_local()['middleware'] = twc.make_middleware(None)
for outer in engines:
for inner in engines:
test = twc.CompoundWidget(id='x',
template = '%s:tw2.core.test_templates.widget_%s' % (outer, outer),
children=[
TestWD(id='y', template='%s:tw2.core.test_templates.inner_%s' % (inner, inner)),
]
)
assert(test.display() == '<p>TEST <p>TEST bob</p></p>')
def test_genshi_abs(self):
test_dir = os.path.sep.join(__file__.split(os.path.sep)[:-1])
fname = os.path.sep.join([test_dir, 'test.html'])
twc.Widget(template='genshi_abs:%s' % fname).display()