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import os
from shutil import rmtree
from tempfile import mkdtemp
import unittest
from scrapy.utils.template import render_templatefile
__doctests__ = ['scrapy.utils.template']
class UtilsRenderTemplateFileTestCase(unittest.TestCase):
def setUp(self):
self.tmp_path = mkdtemp()
def tearDown(self):
rmtree(self.tmp_path)
def test_simple_render(self):
context = dict(project_name='proj', name='spi', classname='TheSpider')
template = u'from ${project_name}.spiders.${name} import ${classname}'
rendered = u'from proj.spiders.spi import TheSpider'
template_path = os.path.join(self.tmp_path, 'templ.py.tmpl')
render_path = os.path.join(self.tmp_path, 'templ.py')
with open(template_path, 'wb') as tmpl_file:
tmpl_file.write(template.encode('utf8'))
assert os.path.isfile(template_path) # Failure of test itself
render_templatefile(template_path, **context)
self.assertFalse(os.path.exists(template_path))
with open(render_path, 'rb') as result:
self.assertEqual(result.read().decode('utf8'), rendered)
os.remove(render_path)
assert not os.path.exists(render_path) # Failure of test iself
if '__main__' == __name__:
unittest.main()
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