Django-1.2.1/tests/regressiontests/templates/parser.py

   1 """
   2 Testing some internals of the template processing. These are *not* examples to be copied in user code.
   3 """
   4
   5 token_parsing=r"""
   6 Tests for TokenParser behavior in the face of quoted strings with spaces.
   7
   8 >>> from django.template import TokenParser
   9
  10
  11 Test case 1: {% tag thevar|filter sometag %}
  12
  13 >>> p = TokenParser("tag thevar|filter sometag")
  14 >>> p.tagname
  15 'tag'
  16 >>> p.value()
  17 'thevar|filter'
  18 >>> p.more()
  19 True
  20 >>> p.tag()
  21 'sometag'
  22 >>> p.more()
  23 False
  24
  25 Test case 2: {% tag "a value"|filter sometag %}
  26
  27 >>> p = TokenParser('tag "a value"|filter sometag')
  28 >>> p.tagname
  29 'tag'
  30 >>> p.value()
  31 '"a value"|filter'
  32 >>> p.more()
  33 True
  34 >>> p.tag()
  35 'sometag'
  36 >>> p.more()
  37 False
  38
  39 Test case 3: {% tag 'a value'|filter sometag %}
  40
  41 >>> p = TokenParser("tag 'a value'|filter sometag")
  42 >>> p.tagname
  43 'tag'
  44 >>> p.value()
  45 "'a value'|filter"
  46 >>> p.more()
  47 True
  48 >>> p.tag()
  49 'sometag'
  50 >>> p.more()
  51 False
  52 """
  53
  54 filter_parsing = r"""
  55 >>> from django.template import FilterExpression, Parser
  56
  57 >>> c = {'article': {'section': u'News'}}
  58 >>> p = Parser("")
  59 >>> def fe_test(s): return FilterExpression(s, p).resolve(c)
  60
  61 >>> fe_test('article.section')
  62 u'News'
  63 >>> fe_test('article.section|upper')
  64 u'NEWS'
  65 >>> fe_test(u'"News"')
  66 u'News'
  67 >>> fe_test(u"'News'")
  68 u'News'
  69 >>> fe_test(ur'"Some \"Good\" News"')
  70 u'Some "Good" News'
  71 >>> fe_test(ur"'Some \'Bad\' News'")
  72 u"Some 'Bad' News"
  73
  74 >>> fe = FilterExpression(ur'"Some \"Good\" News"', p)
  75 >>> fe.filters
  76 []
  77 >>> fe.var
  78 u'Some "Good" News'
  79
  80 Filtered variables should reject access of attributes beginning with underscores.
  81
  82 >>> FilterExpression('article._hidden|upper', p)
  83 Traceback (most recent call last):
  84 ...
  85 TemplateSyntaxError: Variables and attributes may not begin with underscores: 'article._hidden'
  86 """
  87
  88 variable_parsing = r"""
  89 >>> from django.template import Variable
  90
  91 >>> c = {'article': {'section': u'News'}}
  92 >>> Variable('article.section').resolve(c)
  93 u'News'
  94 >>> Variable(u'"News"').resolve(c)
  95 u'News'
  96 >>> Variable(u"'News'").resolve(c)
  97 u'News'
  98
  99 Translated strings are handled correctly.
 100
 101 >>> Variable('_(article.section)').resolve(c)
 102 u'News'
 103 >>> Variable('_("Good News")').resolve(c)
 104 u'Good News'
 105 >>> Variable("_('Better News')").resolve(c)
 106 u'Better News'
 107
 108 Escaped quotes work correctly as well.
 109
 110 >>> Variable(ur'"Some \"Good\" News"').resolve(c)
 111 u'Some "Good" News'
 112 >>> Variable(ur"'Some \'Better\' News'").resolve(c)
 113 u"Some 'Better' News"
 114
 115 Variables should reject access of attributes beginning with underscores.
 116
 117 >>> Variable('article._hidden')
 118 Traceback (most recent call last):
 119 ...
 120 TemplateSyntaxError: Variables and attributes may not begin with underscores: 'article._hidden'
 121 """