1 # -*- coding: utf-8 -*-
3 unit test for the loaders
4 ~~~~~~~~~~~~~~~~~~~~~~~~~
6 :copyright: 2007 by Armin Ronacher.
7 :license: BSD, see LICENSE for more details.
10 from py.test import raises
13 from jinja2 import Environment, loaders
14 from jinja2.loaders import split_template_path
15 from jinja2.exceptions import TemplateNotFound
18 dict_loader = loaders.DictLoader({
19 'justdict.html': 'FOO'
21 package_loader = loaders.PackageLoader('loaderres', 'templates')
22 filesystem_loader = loaders.FileSystemLoader('loaderres/templates')
23 function_loader = loaders.FunctionLoader({'justfunction.html': 'FOO'}.get)
24 choice_loader = loaders.ChoiceLoader([dict_loader, package_loader])
25 prefix_loader = loaders.PrefixLoader({
26 'a': filesystem_loader,
31 def test_dict_loader():
32 env = Environment(loader=dict_loader)
33 tmpl = env.get_template('justdict.html')
34 assert tmpl.render().strip() == 'FOO'
35 raises(TemplateNotFound, env.get_template, 'missing.html')
38 def test_package_loader():
39 env = Environment(loader=package_loader)
40 tmpl = env.get_template('test.html')
41 assert tmpl.render().strip() == 'BAR'
42 raises(TemplateNotFound, env.get_template, 'missing.html')
45 def test_filesystem_loader():
46 env = Environment(loader=filesystem_loader)
47 tmpl = env.get_template('test.html')
48 assert tmpl.render().strip() == 'BAR'
49 tmpl = env.get_template('foo/test.html')
50 assert tmpl.render().strip() == 'FOO'
51 raises(TemplateNotFound, env.get_template, 'missing.html')
54 def test_choice_loader():
55 env = Environment(loader=choice_loader)
56 tmpl = env.get_template('justdict.html')
57 assert tmpl.render().strip() == 'FOO'
58 tmpl = env.get_template('test.html')
59 assert tmpl.render().strip() == 'BAR'
60 raises(TemplateNotFound, env.get_template, 'missing.html')
63 def test_function_loader():
64 env = Environment(loader=function_loader)
65 tmpl = env.get_template('justfunction.html')
66 assert tmpl.render().strip() == 'FOO'
67 raises(TemplateNotFound, env.get_template, 'missing.html')
70 def test_prefix_loader():
71 env = Environment(loader=prefix_loader)
72 tmpl = env.get_template('a/test.html')
73 assert tmpl.render().strip() == 'BAR'
74 tmpl = env.get_template('b/justdict.html')
75 assert tmpl.render().strip() == 'FOO'
76 raises(TemplateNotFound, env.get_template, 'missing')
81 class TestLoader(loaders.BaseLoader):
82 def get_source(self, environment, template):
83 return u'foo', None, lambda: not changed
84 env = Environment(loader=TestLoader(), cache_size=-1)
85 tmpl = env.get_template('template')
86 assert tmpl is env.get_template('template')
88 assert tmpl is not env.get_template('template')
91 env = Environment(loader=TestLoader(), cache_size=0)
92 assert env.get_template('template') \
93 is not env.get_template('template')
95 env = Environment(loader=TestLoader(), cache_size=2)
96 t1 = env.get_template('one')
97 t2 = env.get_template('two')
99 assert t2 is env.get_template('two')
100 assert t1 is env.get_template('one')
101 t3 = env.get_template('three')
102 assert 'one' in env.cache
103 assert 'two' not in env.cache
104 assert 'three' in env.cache
107 def test_split_template_path():
108 assert split_template_path('foo/bar') == ['foo', 'bar']
109 assert split_template_path('./foo/bar') == ['foo', 'bar']
110 raises(TemplateNotFound, split_template_path, '../foo')