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# encoding: utf-8
import unittest
import pystache
from pystache import defaults
from pystache import renderer
from pystache.tests.common import html_escape
class PystacheTests(unittest.TestCase):
def setUp(self):
self.original_escape = defaults.TAG_ESCAPE
defaults.TAG_ESCAPE = html_escape
def tearDown(self):
defaults.TAG_ESCAPE = self.original_escape
def _assert_rendered(self, expected, template, context):
actual = pystache.render(template, context)
self.assertEqual(actual, expected)
def test_basic(self):
ret = pystache.render("Hi {{thing}}!", { 'thing': 'world' })
self.assertEqual(ret, "Hi world!")
def test_kwargs(self):
ret = pystache.render("Hi {{thing}}!", thing='world')
self.assertEqual(ret, "Hi world!")
def test_less_basic(self):
template = "It's a nice day for {{beverage}}, right {{person}}?"
context = { 'beverage': 'soda', 'person': 'Bob' }
self._assert_rendered("It's a nice day for soda, right Bob?", template, context)
def test_even_less_basic(self):
template = "I think {{name}} wants a {{thing}}, right {{name}}?"
context = { 'name': 'Jon', 'thing': 'racecar' }
self._assert_rendered("I think Jon wants a racecar, right Jon?", template, context)
def test_ignores_misses(self):
template = "I think {{name}} wants a {{thing}}, right {{name}}?"
context = { 'name': 'Jon' }
self._assert_rendered("I think Jon wants a , right Jon?", template, context)
def test_render_zero(self):
template = 'My value is {{value}}.'
context = { 'value': 0 }
self._assert_rendered('My value is 0.', template, context)
def test_comments(self):
template = "What {{! the }} what?"
actual = pystache.render(template)
self.assertEqual("What what?", actual)
def test_false_sections_are_hidden(self):
template = "Ready {{#set}}set {{/set}}go!"
context = { 'set': False }
self._assert_rendered("Ready go!", template, context)
def test_true_sections_are_shown(self):
template = "Ready {{#set}}set{{/set}} go!"
context = { 'set': True }
self._assert_rendered("Ready set go!", template, context)
non_strings_expected = """(123 & ['something'])(chris & 0.9)"""
def test_non_strings(self):
template = "{{#stats}}({{key}} & {{value}}){{/stats}}"
stats = []
stats.append({'key': 123, 'value': ['something']})
stats.append({'key': u"chris", 'value': 0.900})
context = { 'stats': stats }
self._assert_rendered(self.non_strings_expected, template, context)
def test_unicode(self):
template = 'Name: {{name}}; Age: {{age}}'
context = {'name': u'Henri Poincaré', 'age': 156 }
self._assert_rendered(u'Name: Henri Poincaré; Age: 156', template, context)
def test_sections(self):
template = """<ul>{{#users}}<li>{{name}}</li>{{/users}}</ul>"""
context = { 'users': [ {'name': 'Chris'}, {'name': 'Tom'}, {'name': 'PJ'} ] }
expected = """<ul><li>Chris</li><li>Tom</li><li>PJ</li></ul>"""
self._assert_rendered(expected, template, context)
def test_implicit_iterator(self):
template = """<ul>{{#users}}<li>{{.}}</li>{{/users}}</ul>"""
context = { 'users': [ 'Chris', 'Tom','PJ' ] }
expected = """<ul><li>Chris</li><li>Tom</li><li>PJ</li></ul>"""
self._assert_rendered(expected, template, context)
# The spec says that sections should not alter surrounding whitespace.
def test_surrounding_whitepace_not_altered(self):
template = "first{{#spacing}} second {{/spacing}}third"
context = {"spacing": True}
self._assert_rendered("first second third", template, context)
def test__section__non_false_value(self):
"""
Test when a section value is a (non-list) "non-false value".
From mustache(5):
When the value [of a section key] is non-false but not a list, it
will be used as the context for a single rendering of the block.
"""
template = """{{#person}}Hi {{name}}{{/person}}"""
context = {"person": {"name": "Jon"}}
self._assert_rendered("Hi Jon", template, context)
def test_later_list_section_with_escapable_character(self):
"""
This is a simple test case intended to cover issue #53.
The test case failed with markupsafe enabled, as follows:
AssertionError: Markup(u'foo <') != 'foo <'
"""
template = """{{#s1}}foo{{/s1}} {{#s2}}<{{/s2}}"""
context = {'s1': True, 's2': [True]}
self._assert_rendered("foo <", template, context)