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594 lines
22 KiB
Python
594 lines
22 KiB
Python
# -*- coding: utf-8 -*-
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"""
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jinja2.testsuite.lexnparse
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~~~~~~~~~~~~~~~~~~~~~~~~~~
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All the unittests regarding lexing, parsing and syntax.
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:copyright: (c) 2010 by the Jinja Team.
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:license: BSD, see LICENSE for more details.
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"""
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import unittest
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from jinja2.testsuite import JinjaTestCase
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from jinja2 import Environment, Template, TemplateSyntaxError, \
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UndefinedError, nodes
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from jinja2._compat import next, iteritems, text_type, PY2
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from jinja2.lexer import Token, TokenStream, TOKEN_EOF, \
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TOKEN_BLOCK_BEGIN, TOKEN_BLOCK_END
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env = Environment()
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# how does a string look like in jinja syntax?
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if PY2:
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def jinja_string_repr(string):
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return repr(string)[1:]
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else:
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jinja_string_repr = repr
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class TokenStreamTestCase(JinjaTestCase):
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test_tokens = [Token(1, TOKEN_BLOCK_BEGIN, ''),
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Token(2, TOKEN_BLOCK_END, ''),
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]
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def test_simple(self):
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ts = TokenStream(self.test_tokens, "foo", "bar")
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assert ts.current.type is TOKEN_BLOCK_BEGIN
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assert bool(ts)
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assert not bool(ts.eos)
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next(ts)
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assert ts.current.type is TOKEN_BLOCK_END
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assert bool(ts)
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assert not bool(ts.eos)
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next(ts)
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assert ts.current.type is TOKEN_EOF
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assert not bool(ts)
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assert bool(ts.eos)
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def test_iter(self):
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token_types = [t.type for t in TokenStream(self.test_tokens, "foo", "bar")]
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assert token_types == ['block_begin', 'block_end', ]
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class LexerTestCase(JinjaTestCase):
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def test_raw1(self):
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tmpl = env.from_string('{% raw %}foo{% endraw %}|'
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'{%raw%}{{ bar }}|{% baz %}{% endraw %}')
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assert tmpl.render() == 'foo|{{ bar }}|{% baz %}'
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def test_raw2(self):
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tmpl = env.from_string('1 {%- raw -%} 2 {%- endraw -%} 3')
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assert tmpl.render() == '123'
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def test_balancing(self):
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env = Environment('{%', '%}', '${', '}')
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tmpl = env.from_string('''{% for item in seq
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%}${{'foo': item}|upper}{% endfor %}''')
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assert tmpl.render(seq=list(range(3))) == "{'FOO': 0}{'FOO': 1}{'FOO': 2}"
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def test_comments(self):
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env = Environment('<!--', '-->', '{', '}')
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tmpl = env.from_string('''\
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<ul>
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<!--- for item in seq -->
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<li>{item}</li>
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<!--- endfor -->
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</ul>''')
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assert tmpl.render(seq=list(range(3))) == ("<ul>\n <li>0</li>\n "
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"<li>1</li>\n <li>2</li>\n</ul>")
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def test_string_escapes(self):
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for char in u'\0', u'\u2668', u'\xe4', u'\t', u'\r', u'\n':
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tmpl = env.from_string('{{ %s }}' % jinja_string_repr(char))
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assert tmpl.render() == char
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assert env.from_string('{{ "\N{HOT SPRINGS}" }}').render() == u'\u2668'
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def test_bytefallback(self):
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from pprint import pformat
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tmpl = env.from_string(u'''{{ 'foo'|pprint }}|{{ 'bär'|pprint }}''')
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assert tmpl.render() == pformat('foo') + '|' + pformat(u'bär')
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def test_operators(self):
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from jinja2.lexer import operators
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for test, expect in iteritems(operators):
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if test in '([{}])':
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continue
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stream = env.lexer.tokenize('{{ %s }}' % test)
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next(stream)
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assert stream.current.type == expect
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def test_normalizing(self):
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for seq in '\r', '\r\n', '\n':
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env = Environment(newline_sequence=seq)
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tmpl = env.from_string('1\n2\r\n3\n4\n')
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result = tmpl.render()
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assert result.replace(seq, 'X') == '1X2X3X4'
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def test_trailing_newline(self):
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for keep in [True, False]:
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env = Environment(keep_trailing_newline=keep)
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for template,expected in [
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('', {}),
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('no\nnewline', {}),
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('with\nnewline\n', {False: 'with\nnewline'}),
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('with\nseveral\n\n\n', {False: 'with\nseveral\n\n'}),
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]:
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tmpl = env.from_string(template)
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expect = expected.get(keep, template)
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result = tmpl.render()
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assert result == expect, (keep, template, result, expect)
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class ParserTestCase(JinjaTestCase):
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def test_php_syntax(self):
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env = Environment('<?', '?>', '<?=', '?>', '<!--', '-->')
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tmpl = env.from_string('''\
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<!-- I'm a comment, I'm not interesting -->\
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<? for item in seq -?>
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<?= item ?>
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<?- endfor ?>''')
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assert tmpl.render(seq=list(range(5))) == '01234'
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def test_erb_syntax(self):
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env = Environment('<%', '%>', '<%=', '%>', '<%#', '%>')
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tmpl = env.from_string('''\
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<%# I'm a comment, I'm not interesting %>\
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<% for item in seq -%>
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<%= item %>
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<%- endfor %>''')
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assert tmpl.render(seq=list(range(5))) == '01234'
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def test_comment_syntax(self):
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env = Environment('<!--', '-->', '${', '}', '<!--#', '-->')
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tmpl = env.from_string('''\
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<!--# I'm a comment, I'm not interesting -->\
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<!-- for item in seq --->
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${item}
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<!--- endfor -->''')
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assert tmpl.render(seq=list(range(5))) == '01234'
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def test_balancing(self):
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tmpl = env.from_string('''{{{'foo':'bar'}.foo}}''')
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assert tmpl.render() == 'bar'
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def test_start_comment(self):
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tmpl = env.from_string('''{# foo comment
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and bar comment #}
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{% macro blub() %}foo{% endmacro %}
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{{ blub() }}''')
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assert tmpl.render().strip() == 'foo'
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def test_line_syntax(self):
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env = Environment('<%', '%>', '${', '}', '<%#', '%>', '%')
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tmpl = env.from_string('''\
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<%# regular comment %>
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% for item in seq:
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${item}
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% endfor''')
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assert [int(x.strip()) for x in tmpl.render(seq=list(range(5))).split()] == \
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list(range(5))
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env = Environment('<%', '%>', '${', '}', '<%#', '%>', '%', '##')
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tmpl = env.from_string('''\
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<%# regular comment %>
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% for item in seq:
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${item} ## the rest of the stuff
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% endfor''')
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assert [int(x.strip()) for x in tmpl.render(seq=list(range(5))).split()] == \
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list(range(5))
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def test_line_syntax_priority(self):
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# XXX: why is the whitespace there in front of the newline?
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env = Environment('{%', '%}', '${', '}', '/*', '*/', '##', '#')
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tmpl = env.from_string('''\
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/* ignore me.
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I'm a multiline comment */
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## for item in seq:
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* ${item} # this is just extra stuff
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## endfor''')
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assert tmpl.render(seq=[1, 2]).strip() == '* 1\n* 2'
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env = Environment('{%', '%}', '${', '}', '/*', '*/', '#', '##')
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tmpl = env.from_string('''\
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/* ignore me.
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I'm a multiline comment */
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# for item in seq:
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* ${item} ## this is just extra stuff
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## extra stuff i just want to ignore
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# endfor''')
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assert tmpl.render(seq=[1, 2]).strip() == '* 1\n\n* 2'
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def test_error_messages(self):
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def assert_error(code, expected):
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try:
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Template(code)
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except TemplateSyntaxError as e:
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assert str(e) == expected, 'unexpected error message'
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else:
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assert False, 'that was supposed to be an error'
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assert_error('{% for item in seq %}...{% endif %}',
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"Encountered unknown tag 'endif'. Jinja was looking "
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"for the following tags: 'endfor' or 'else'. The "
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"innermost block that needs to be closed is 'for'.")
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assert_error('{% if foo %}{% for item in seq %}...{% endfor %}{% endfor %}',
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"Encountered unknown tag 'endfor'. Jinja was looking for "
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"the following tags: 'elif' or 'else' or 'endif'. The "
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"innermost block that needs to be closed is 'if'.")
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assert_error('{% if foo %}',
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"Unexpected end of template. Jinja was looking for the "
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"following tags: 'elif' or 'else' or 'endif'. The "
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"innermost block that needs to be closed is 'if'.")
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assert_error('{% for item in seq %}',
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"Unexpected end of template. Jinja was looking for the "
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"following tags: 'endfor' or 'else'. The innermost block "
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"that needs to be closed is 'for'.")
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assert_error('{% block foo-bar-baz %}',
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"Block names in Jinja have to be valid Python identifiers "
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"and may not contain hyphens, use an underscore instead.")
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assert_error('{% unknown_tag %}',
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"Encountered unknown tag 'unknown_tag'.")
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class SyntaxTestCase(JinjaTestCase):
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def test_call(self):
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env = Environment()
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env.globals['foo'] = lambda a, b, c, e, g: a + b + c + e + g
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tmpl = env.from_string("{{ foo('a', c='d', e='f', *['b'], **{'g': 'h'}) }}")
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assert tmpl.render() == 'abdfh'
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def test_slicing(self):
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tmpl = env.from_string('{{ [1, 2, 3][:] }}|{{ [1, 2, 3][::-1] }}')
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assert tmpl.render() == '[1, 2, 3]|[3, 2, 1]'
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def test_attr(self):
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tmpl = env.from_string("{{ foo.bar }}|{{ foo['bar'] }}")
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assert tmpl.render(foo={'bar': 42}) == '42|42'
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def test_subscript(self):
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tmpl = env.from_string("{{ foo[0] }}|{{ foo[-1] }}")
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assert tmpl.render(foo=[0, 1, 2]) == '0|2'
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def test_tuple(self):
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tmpl = env.from_string('{{ () }}|{{ (1,) }}|{{ (1, 2) }}')
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assert tmpl.render() == '()|(1,)|(1, 2)'
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def test_math(self):
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tmpl = env.from_string('{{ (1 + 1 * 2) - 3 / 2 }}|{{ 2**3 }}')
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assert tmpl.render() == '1.5|8'
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def test_div(self):
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tmpl = env.from_string('{{ 3 // 2 }}|{{ 3 / 2 }}|{{ 3 % 2 }}')
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assert tmpl.render() == '1|1.5|1'
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def test_unary(self):
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tmpl = env.from_string('{{ +3 }}|{{ -3 }}')
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assert tmpl.render() == '3|-3'
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def test_concat(self):
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tmpl = env.from_string("{{ [1, 2] ~ 'foo' }}")
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assert tmpl.render() == '[1, 2]foo'
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def test_compare(self):
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tmpl = env.from_string('{{ 1 > 0 }}|{{ 1 >= 1 }}|{{ 2 < 3 }}|'
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'{{ 2 == 2 }}|{{ 1 <= 1 }}')
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assert tmpl.render() == 'True|True|True|True|True'
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def test_inop(self):
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tmpl = env.from_string('{{ 1 in [1, 2, 3] }}|{{ 1 not in [1, 2, 3] }}')
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assert tmpl.render() == 'True|False'
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def test_literals(self):
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tmpl = env.from_string('{{ [] }}|{{ {} }}|{{ () }}')
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assert tmpl.render().lower() == '[]|{}|()'
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def test_bool(self):
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tmpl = env.from_string('{{ true and false }}|{{ false '
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'or true }}|{{ not false }}')
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assert tmpl.render() == 'False|True|True'
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def test_grouping(self):
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tmpl = env.from_string('{{ (true and false) or (false and true) and not false }}')
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assert tmpl.render() == 'False'
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def test_django_attr(self):
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tmpl = env.from_string('{{ [1, 2, 3].0 }}|{{ [[1]].0.0 }}')
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assert tmpl.render() == '1|1'
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def test_conditional_expression(self):
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tmpl = env.from_string('''{{ 0 if true else 1 }}''')
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assert tmpl.render() == '0'
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def test_short_conditional_expression(self):
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tmpl = env.from_string('<{{ 1 if false }}>')
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assert tmpl.render() == '<>'
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tmpl = env.from_string('<{{ (1 if false).bar }}>')
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self.assert_raises(UndefinedError, tmpl.render)
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def test_filter_priority(self):
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tmpl = env.from_string('{{ "foo"|upper + "bar"|upper }}')
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assert tmpl.render() == 'FOOBAR'
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def test_function_calls(self):
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tests = [
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(True, '*foo, bar'),
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(True, '*foo, *bar'),
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(True, '*foo, bar=42'),
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(True, '**foo, *bar'),
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(True, '**foo, bar'),
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(False, 'foo, bar'),
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(False, 'foo, bar=42'),
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(False, 'foo, bar=23, *args'),
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(False, 'a, b=c, *d, **e'),
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(False, '*foo, **bar')
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]
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for should_fail, sig in tests:
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if should_fail:
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self.assert_raises(TemplateSyntaxError,
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env.from_string, '{{ foo(%s) }}' % sig)
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else:
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env.from_string('foo(%s)' % sig)
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def test_tuple_expr(self):
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for tmpl in [
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'{{ () }}',
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'{{ (1, 2) }}',
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'{{ (1, 2,) }}',
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'{{ 1, }}',
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'{{ 1, 2 }}',
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'{% for foo, bar in seq %}...{% endfor %}',
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'{% for x in foo, bar %}...{% endfor %}',
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'{% for x in foo, %}...{% endfor %}'
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]:
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assert env.from_string(tmpl)
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def test_trailing_comma(self):
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tmpl = env.from_string('{{ (1, 2,) }}|{{ [1, 2,] }}|{{ {1: 2,} }}')
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assert tmpl.render().lower() == '(1, 2)|[1, 2]|{1: 2}'
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def test_block_end_name(self):
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env.from_string('{% block foo %}...{% endblock foo %}')
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self.assert_raises(TemplateSyntaxError, env.from_string,
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'{% block x %}{% endblock y %}')
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def test_constant_casing(self):
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for const in True, False, None:
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tmpl = env.from_string('{{ %s }}|{{ %s }}|{{ %s }}' % (
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str(const), str(const).lower(), str(const).upper()
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))
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assert tmpl.render() == '%s|%s|' % (const, const)
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def test_test_chaining(self):
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self.assert_raises(TemplateSyntaxError, env.from_string,
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'{{ foo is string is sequence }}')
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assert env.from_string('{{ 42 is string or 42 is number }}'
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).render() == 'True'
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def test_string_concatenation(self):
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tmpl = env.from_string('{{ "foo" "bar" "baz" }}')
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assert tmpl.render() == 'foobarbaz'
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def test_notin(self):
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bar = range(100)
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tmpl = env.from_string('''{{ not 42 in bar }}''')
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assert tmpl.render(bar=bar) == text_type(not 42 in bar)
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def test_implicit_subscribed_tuple(self):
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class Foo(object):
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def __getitem__(self, x):
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return x
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t = env.from_string('{{ foo[1, 2] }}')
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assert t.render(foo=Foo()) == u'(1, 2)'
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def test_raw2(self):
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tmpl = env.from_string('{% raw %}{{ FOO }} and {% BAR %}{% endraw %}')
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assert tmpl.render() == '{{ FOO }} and {% BAR %}'
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def test_const(self):
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tmpl = env.from_string('{{ true }}|{{ false }}|{{ none }}|'
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'{{ none is defined }}|{{ missing is defined }}')
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assert tmpl.render() == 'True|False|None|True|False'
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def test_neg_filter_priority(self):
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node = env.parse('{{ -1|foo }}')
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assert isinstance(node.body[0].nodes[0], nodes.Filter)
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assert isinstance(node.body[0].nodes[0].node, nodes.Neg)
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def test_const_assign(self):
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constass1 = '''{% set true = 42 %}'''
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constass2 = '''{% for none in seq %}{% endfor %}'''
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for tmpl in constass1, constass2:
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self.assert_raises(TemplateSyntaxError, env.from_string, tmpl)
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def test_localset(self):
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tmpl = env.from_string('''{% set foo = 0 %}\
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{% for item in [1, 2] %}{% set foo = 1 %}{% endfor %}\
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{{ foo }}''')
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assert tmpl.render() == '0'
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def test_parse_unary(self):
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tmpl = env.from_string('{{ -foo["bar"] }}')
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assert tmpl.render(foo={'bar': 42}) == '-42'
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tmpl = env.from_string('{{ -foo["bar"]|abs }}')
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assert tmpl.render(foo={'bar': 42}) == '42'
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class LstripBlocksTestCase(JinjaTestCase):
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def test_lstrip(self):
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env = Environment(lstrip_blocks=True, trim_blocks=False)
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tmpl = env.from_string(''' {% if True %}\n {% endif %}''')
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assert tmpl.render() == "\n"
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def test_lstrip_trim(self):
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env = Environment(lstrip_blocks=True, trim_blocks=True)
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tmpl = env.from_string(''' {% if True %}\n {% endif %}''')
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assert tmpl.render() == ""
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def test_no_lstrip(self):
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env = Environment(lstrip_blocks=True, trim_blocks=False)
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tmpl = env.from_string(''' {%+ if True %}\n {%+ endif %}''')
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assert tmpl.render() == " \n "
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def test_lstrip_endline(self):
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env = Environment(lstrip_blocks=True, trim_blocks=False)
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tmpl = env.from_string(''' hello{% if True %}\n goodbye{% endif %}''')
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assert tmpl.render() == " hello\n goodbye"
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def test_lstrip_inline(self):
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env = Environment(lstrip_blocks=True, trim_blocks=False)
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tmpl = env.from_string(''' {% if True %}hello {% endif %}''')
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assert tmpl.render() == 'hello '
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def test_lstrip_nested(self):
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env = Environment(lstrip_blocks=True, trim_blocks=False)
|
|
tmpl = env.from_string(''' {% if True %}a {% if True %}b {% endif %}c {% endif %}''')
|
|
assert tmpl.render() == 'a b c '
|
|
|
|
def test_lstrip_left_chars(self):
|
|
env = Environment(lstrip_blocks=True, trim_blocks=False)
|
|
tmpl = env.from_string(''' abc {% if True %}
|
|
hello{% endif %}''')
|
|
assert tmpl.render() == ' abc \n hello'
|
|
|
|
def test_lstrip_embeded_strings(self):
|
|
env = Environment(lstrip_blocks=True, trim_blocks=False)
|
|
tmpl = env.from_string(''' {% set x = " {% str %} " %}{{ x }}''')
|
|
assert tmpl.render() == ' {% str %} '
|
|
|
|
def test_lstrip_preserve_leading_newlines(self):
|
|
env = Environment(lstrip_blocks=True, trim_blocks=False)
|
|
tmpl = env.from_string('''\n\n\n{% set hello = 1 %}''')
|
|
assert tmpl.render() == '\n\n\n'
|
|
|
|
def test_lstrip_comment(self):
|
|
env = Environment(lstrip_blocks=True, trim_blocks=False)
|
|
tmpl = env.from_string(''' {# if True #}
|
|
hello
|
|
{#endif#}''')
|
|
assert tmpl.render() == '\nhello\n'
|
|
|
|
def test_lstrip_angle_bracket_simple(self):
|
|
env = Environment('<%', '%>', '${', '}', '<%#', '%>', '%', '##',
|
|
lstrip_blocks=True, trim_blocks=True)
|
|
tmpl = env.from_string(''' <% if True %>hello <% endif %>''')
|
|
assert tmpl.render() == 'hello '
|
|
|
|
def test_lstrip_angle_bracket_comment(self):
|
|
env = Environment('<%', '%>', '${', '}', '<%#', '%>', '%', '##',
|
|
lstrip_blocks=True, trim_blocks=True)
|
|
tmpl = env.from_string(''' <%# if True %>hello <%# endif %>''')
|
|
assert tmpl.render() == 'hello '
|
|
|
|
def test_lstrip_angle_bracket(self):
|
|
env = Environment('<%', '%>', '${', '}', '<%#', '%>', '%', '##',
|
|
lstrip_blocks=True, trim_blocks=True)
|
|
tmpl = env.from_string('''\
|
|
<%# regular comment %>
|
|
<% for item in seq %>
|
|
${item} ## the rest of the stuff
|
|
<% endfor %>''')
|
|
assert tmpl.render(seq=range(5)) == \
|
|
''.join('%s\n' % x for x in range(5))
|
|
|
|
def test_lstrip_angle_bracket_compact(self):
|
|
env = Environment('<%', '%>', '${', '}', '<%#', '%>', '%', '##',
|
|
lstrip_blocks=True, trim_blocks=True)
|
|
tmpl = env.from_string('''\
|
|
<%#regular comment%>
|
|
<%for item in seq%>
|
|
${item} ## the rest of the stuff
|
|
<%endfor%>''')
|
|
assert tmpl.render(seq=range(5)) == \
|
|
''.join('%s\n' % x for x in range(5))
|
|
|
|
def test_php_syntax_with_manual(self):
|
|
env = Environment('<?', '?>', '<?=', '?>', '<!--', '-->',
|
|
lstrip_blocks=True, trim_blocks=True)
|
|
tmpl = env.from_string('''\
|
|
<!-- I'm a comment, I'm not interesting -->
|
|
<? for item in seq -?>
|
|
<?= item ?>
|
|
<?- endfor ?>''')
|
|
assert tmpl.render(seq=range(5)) == '01234'
|
|
|
|
def test_php_syntax(self):
|
|
env = Environment('<?', '?>', '<?=', '?>', '<!--', '-->',
|
|
lstrip_blocks=True, trim_blocks=True)
|
|
tmpl = env.from_string('''\
|
|
<!-- I'm a comment, I'm not interesting -->
|
|
<? for item in seq ?>
|
|
<?= item ?>
|
|
<? endfor ?>''')
|
|
assert tmpl.render(seq=range(5)) == ''.join(' %s\n' % x for x in range(5))
|
|
|
|
def test_php_syntax_compact(self):
|
|
env = Environment('<?', '?>', '<?=', '?>', '<!--', '-->',
|
|
lstrip_blocks=True, trim_blocks=True)
|
|
tmpl = env.from_string('''\
|
|
<!-- I'm a comment, I'm not interesting -->
|
|
<?for item in seq?>
|
|
<?=item?>
|
|
<?endfor?>''')
|
|
assert tmpl.render(seq=range(5)) == ''.join(' %s\n' % x for x in range(5))
|
|
|
|
def test_erb_syntax(self):
|
|
env = Environment('<%', '%>', '<%=', '%>', '<%#', '%>',
|
|
lstrip_blocks=True, trim_blocks=True)
|
|
#env.from_string('')
|
|
#for n,r in env.lexer.rules.iteritems():
|
|
# print n
|
|
#print env.lexer.rules['root'][0][0].pattern
|
|
#print "'%s'" % tmpl.render(seq=range(5))
|
|
tmpl = env.from_string('''\
|
|
<%# I'm a comment, I'm not interesting %>
|
|
<% for item in seq %>
|
|
<%= item %>
|
|
<% endfor %>
|
|
''')
|
|
assert tmpl.render(seq=range(5)) == ''.join(' %s\n' % x for x in range(5))
|
|
|
|
def test_erb_syntax_with_manual(self):
|
|
env = Environment('<%', '%>', '<%=', '%>', '<%#', '%>',
|
|
lstrip_blocks=True, trim_blocks=True)
|
|
tmpl = env.from_string('''\
|
|
<%# I'm a comment, I'm not interesting %>
|
|
<% for item in seq -%>
|
|
<%= item %>
|
|
<%- endfor %>''')
|
|
assert tmpl.render(seq=range(5)) == '01234'
|
|
|
|
def test_erb_syntax_no_lstrip(self):
|
|
env = Environment('<%', '%>', '<%=', '%>', '<%#', '%>',
|
|
lstrip_blocks=True, trim_blocks=True)
|
|
tmpl = env.from_string('''\
|
|
<%# I'm a comment, I'm not interesting %>
|
|
<%+ for item in seq -%>
|
|
<%= item %>
|
|
<%- endfor %>''')
|
|
assert tmpl.render(seq=range(5)) == ' 01234'
|
|
|
|
def test_comment_syntax(self):
|
|
env = Environment('<!--', '-->', '${', '}', '<!--#', '-->',
|
|
lstrip_blocks=True, trim_blocks=True)
|
|
tmpl = env.from_string('''\
|
|
<!--# I'm a comment, I'm not interesting -->\
|
|
<!-- for item in seq --->
|
|
${item}
|
|
<!--- endfor -->''')
|
|
assert tmpl.render(seq=range(5)) == '01234'
|
|
|
|
def suite():
|
|
suite = unittest.TestSuite()
|
|
suite.addTest(unittest.makeSuite(TokenStreamTestCase))
|
|
suite.addTest(unittest.makeSuite(LexerTestCase))
|
|
suite.addTest(unittest.makeSuite(ParserTestCase))
|
|
suite.addTest(unittest.makeSuite(SyntaxTestCase))
|
|
suite.addTest(unittest.makeSuite(LstripBlocksTestCase))
|
|
return suite
|