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Diffstat (limited to 'websdk/jinja2/testsuite/lexnparse.py')
| -rw-r--r-- | websdk/jinja2/testsuite/lexnparse.py | 387 |
1 files changed, 387 insertions, 0 deletions
diff --git a/websdk/jinja2/testsuite/lexnparse.py b/websdk/jinja2/testsuite/lexnparse.py new file mode 100644 index 0000000..77b76ec --- /dev/null +++ b/websdk/jinja2/testsuite/lexnparse.py @@ -0,0 +1,387 @@ +# -*- coding: utf-8 -*- +""" + jinja2.testsuite.lexnparse + ~~~~~~~~~~~~~~~~~~~~~~~~~~ + + All the unittests regarding lexing, parsing and syntax. + + :copyright: (c) 2010 by the Jinja Team. + :license: BSD, see LICENSE for more details. +""" +import sys +import unittest + +from jinja2.testsuite import JinjaTestCase + +from jinja2 import Environment, Template, TemplateSyntaxError, \ + UndefinedError, nodes + +env = Environment() + + +# how does a string look like in jinja syntax? +if sys.version_info < (3, 0): + def jinja_string_repr(string): + return repr(string)[1:] +else: + jinja_string_repr = repr + + +class LexerTestCase(JinjaTestCase): + + def test_raw1(self): + tmpl = env.from_string('{% raw %}foo{% endraw %}|' + '{%raw%}{{ bar }}|{% baz %}{% endraw %}') + assert tmpl.render() == 'foo|{{ bar }}|{% baz %}' + + def test_raw2(self): + tmpl = env.from_string('1 {%- raw -%} 2 {%- endraw -%} 3') + assert tmpl.render() == '123' + + def test_balancing(self): + env = Environment('{%', '%}', '${', '}') + tmpl = env.from_string('''{% for item in seq + %}${{'foo': item}|upper}{% endfor %}''') + assert tmpl.render(seq=range(3)) == "{'FOO': 0}{'FOO': 1}{'FOO': 2}" + + def test_comments(self): + env = Environment('<!--', '-->', '{', '}') + tmpl = env.from_string('''\ +<ul> +<!--- for item in seq --> + <li>{item}</li> +<!--- endfor --> +</ul>''') + assert tmpl.render(seq=range(3)) == ("<ul>\n <li>0</li>\n " + "<li>1</li>\n <li>2</li>\n</ul>") + + def test_string_escapes(self): + for char in u'\0', u'\u2668', u'\xe4', u'\t', u'\r', u'\n': + tmpl = env.from_string('{{ %s }}' % jinja_string_repr(char)) + assert tmpl.render() == char + assert env.from_string('{{ "\N{HOT SPRINGS}" }}').render() == u'\u2668' + + def test_bytefallback(self): + from pprint import pformat + tmpl = env.from_string(u'''{{ 'foo'|pprint }}|{{ 'bär'|pprint }}''') + assert tmpl.render() == pformat('foo') + '|' + pformat(u'bär') + + def test_operators(self): + from jinja2.lexer import operators + for test, expect in operators.iteritems(): + if test in '([{}])': + continue + stream = env.lexer.tokenize('{{ %s }}' % test) + stream.next() + assert stream.current.type == expect + + def test_normalizing(self): + for seq in '\r', '\r\n', '\n': + env = Environment(newline_sequence=seq) + tmpl = env.from_string('1\n2\r\n3\n4\n') + result = tmpl.render() + assert result.replace(seq, 'X') == '1X2X3X4' + + +class ParserTestCase(JinjaTestCase): + + def test_php_syntax(self): + env = Environment('<?', '?>', '<?=', '?>', '<!--', '-->') + 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(self): + env = Environment('<%', '%>', '<%=', '%>', '<%#', '%>') + 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('<!--', '-->', '${', '}', '<!--#', '-->') + tmpl = env.from_string('''\ +<!--# I'm a comment, I'm not interesting -->\ +<!-- for item in seq ---> + ${item} +<!--- endfor -->''') + assert tmpl.render(seq=range(5)) == '01234' + + def test_balancing(self): + tmpl = env.from_string('''{{{'foo':'bar'}.foo}}''') + assert tmpl.render() == 'bar' + + def test_start_comment(self): + tmpl = env.from_string('''{# foo comment +and bar comment #} +{% macro blub() %}foo{% endmacro %} +{{ blub() }}''') + assert tmpl.render().strip() == 'foo' + + def test_line_syntax(self): + env = Environment('<%', '%>', '${', '}', '<%#', '%>', '%') + tmpl = env.from_string('''\ +<%# regular comment %> +% for item in seq: + ${item} +% endfor''') + assert [int(x.strip()) for x in tmpl.render(seq=range(5)).split()] == \ + range(5) + + env = Environment('<%', '%>', '${', '}', '<%#', '%>', '%', '##') + tmpl = env.from_string('''\ +<%# regular comment %> +% for item in seq: + ${item} ## the rest of the stuff +% endfor''') + assert [int(x.strip()) for x in tmpl.render(seq=range(5)).split()] == \ + range(5) + + def test_line_syntax_priority(self): + # XXX: why is the whitespace there in front of the newline? + env = Environment('{%', '%}', '${', '}', '/*', '*/', '##', '#') + tmpl = env.from_string('''\ +/* ignore me. + I'm a multiline comment */ +## for item in seq: +* ${item} # this is just extra stuff +## endfor''') + assert tmpl.render(seq=[1, 2]).strip() == '* 1\n* 2' + env = Environment('{%', '%}', '${', '}', '/*', '*/', '#', '##') + tmpl = env.from_string('''\ +/* ignore me. + I'm a multiline comment */ +# for item in seq: +* ${item} ## this is just extra stuff + ## extra stuff i just want to ignore +# endfor''') + assert tmpl.render(seq=[1, 2]).strip() == '* 1\n\n* 2' + + def test_error_messages(self): + def assert_error(code, expected): + try: + Template(code) + except TemplateSyntaxError, e: + assert str(e) == expected, 'unexpected error message' + else: + assert False, 'that was supposed to be an error' + + assert_error('{% for item in seq %}...{% endif %}', + "Encountered unknown tag 'endif'. Jinja was looking " + "for the following tags: 'endfor' or 'else'. The " + "innermost block that needs to be closed is 'for'.") + assert_error('{% if foo %}{% for item in seq %}...{% endfor %}{% endfor %}', + "Encountered unknown tag 'endfor'. Jinja was looking for " + "the following tags: 'elif' or 'else' or 'endif'. The " + "innermost block that needs to be closed is 'if'.") + assert_error('{% if foo %}', + "Unexpected end of template. Jinja was looking for the " + "following tags: 'elif' or 'else' or 'endif'. The " + "innermost block that needs to be closed is 'if'.") + assert_error('{% for item in seq %}', + "Unexpected end of template. Jinja was looking for the " + "following tags: 'endfor' or 'else'. The innermost block " + "that needs to be closed is 'for'.") + assert_error('{% block foo-bar-baz %}', + "Block names in Jinja have to be valid Python identifiers " + "and may not contain hyphens, use an underscore instead.") + assert_error('{% unknown_tag %}', + "Encountered unknown tag 'unknown_tag'.") + + +class SyntaxTestCase(JinjaTestCase): + + def test_call(self): + env = Environment() + env.globals['foo'] = lambda a, b, c, e, g: a + b + c + e + g + tmpl = env.from_string("{{ foo('a', c='d', e='f', *['b'], **{'g': 'h'}) }}") + assert tmpl.render() == 'abdfh' + + def test_slicing(self): + tmpl = env.from_string('{{ [1, 2, 3][:] }}|{{ [1, 2, 3][::-1] }}') + assert tmpl.render() == '[1, 2, 3]|[3, 2, 1]' + + def test_attr(self): + tmpl = env.from_string("{{ foo.bar }}|{{ foo['bar'] }}") + assert tmpl.render(foo={'bar': 42}) == '42|42' + + def test_subscript(self): + tmpl = env.from_string("{{ foo[0] }}|{{ foo[-1] }}") + assert tmpl.render(foo=[0, 1, 2]) == '0|2' + + def test_tuple(self): + tmpl = env.from_string('{{ () }}|{{ (1,) }}|{{ (1, 2) }}') + assert tmpl.render() == '()|(1,)|(1, 2)' + + def test_math(self): + tmpl = env.from_string('{{ (1 + 1 * 2) - 3 / 2 }}|{{ 2**3 }}') + assert tmpl.render() == '1.5|8' + + def test_div(self): + tmpl = env.from_string('{{ 3 // 2 }}|{{ 3 / 2 }}|{{ 3 % 2 }}') + assert tmpl.render() == '1|1.5|1' + + def test_unary(self): + tmpl = env.from_string('{{ +3 }}|{{ -3 }}') + assert tmpl.render() == '3|-3' + + def test_concat(self): + tmpl = env.from_string("{{ [1, 2] ~ 'foo' }}") + assert tmpl.render() == '[1, 2]foo' + + def test_compare(self): + tmpl = env.from_string('{{ 1 > 0 }}|{{ 1 >= 1 }}|{{ 2 < 3 }}|' + '{{ 2 == 2 }}|{{ 1 <= 1 }}') + assert tmpl.render() == 'True|True|True|True|True' + + def test_inop(self): + tmpl = env.from_string('{{ 1 in [1, 2, 3] }}|{{ 1 not in [1, 2, 3] }}') + assert tmpl.render() == 'True|False' + + def test_literals(self): + tmpl = env.from_string('{{ [] }}|{{ {} }}|{{ () }}') + assert tmpl.render().lower() == '[]|{}|()' + + def test_bool(self): + tmpl = env.from_string('{{ true and false }}|{{ false ' + 'or true }}|{{ not false }}') + assert tmpl.render() == 'False|True|True' + + def test_grouping(self): + tmpl = env.from_string('{{ (true and false) or (false and true) and not false }}') + assert tmpl.render() == 'False' + + def test_django_attr(self): + tmpl = env.from_string('{{ [1, 2, 3].0 }}|{{ [[1]].0.0 }}') + assert tmpl.render() == '1|1' + + def test_conditional_expression(self): + tmpl = env.from_string('''{{ 0 if true else 1 }}''') + assert tmpl.render() == '0' + + def test_short_conditional_expression(self): + tmpl = env.from_string('<{{ 1 if false }}>') + assert tmpl.render() == '<>' + + tmpl = env.from_string('<{{ (1 if false).bar }}>') + self.assert_raises(UndefinedError, tmpl.render) + + def test_filter_priority(self): + tmpl = env.from_string('{{ "foo"|upper + "bar"|upper }}') + assert tmpl.render() == 'FOOBAR' + + def test_function_calls(self): + tests = [ + (True, '*foo, bar'), + (True, '*foo, *bar'), + (True, '*foo, bar=42'), + (True, '**foo, *bar'), + (True, '**foo, bar'), + (False, 'foo, bar'), + (False, 'foo, bar=42'), + (False, 'foo, bar=23, *args'), + (False, 'a, b=c, *d, **e'), + (False, '*foo, **bar') + ] + for should_fail, sig in tests: + if should_fail: + self.assert_raises(TemplateSyntaxError, + env.from_string, '{{ foo(%s) }}' % sig) + else: + env.from_string('foo(%s)' % sig) + + def test_tuple_expr(self): + for tmpl in [ + '{{ () }}', + '{{ (1, 2) }}', + '{{ (1, 2,) }}', + '{{ 1, }}', + '{{ 1, 2 }}', + '{% for foo, bar in seq %}...{% endfor %}', + '{% for x in foo, bar %}...{% endfor %}', + '{% for x in foo, %}...{% endfor %}' + ]: + assert env.from_string(tmpl) + + def test_trailing_comma(self): + tmpl = env.from_string('{{ (1, 2,) }}|{{ [1, 2,] }}|{{ {1: 2,} }}') + assert tmpl.render().lower() == '(1, 2)|[1, 2]|{1: 2}' + + def test_block_end_name(self): + env.from_string('{% block foo %}...{% endblock foo %}') + self.assert_raises(TemplateSyntaxError, env.from_string, + '{% block x %}{% endblock y %}') + + def test_constant_casing(self): + for const in True, False, None: + tmpl = env.from_string('{{ %s }}|{{ %s }}|{{ %s }}' % ( + str(const), str(const).lower(), str(const).upper() + )) + assert tmpl.render() == '%s|%s|' % (const, const) + + def test_test_chaining(self): + self.assert_raises(TemplateSyntaxError, env.from_string, + '{{ foo is string is sequence }}') + assert env.from_string('{{ 42 is string or 42 is number }}' + ).render() == 'True' + + def test_string_concatenation(self): + tmpl = env.from_string('{{ "foo" "bar" "baz" }}') + assert tmpl.render() == 'foobarbaz' + + def test_notin(self): + bar = xrange(100) + tmpl = env.from_string('''{{ not 42 in bar }}''') + assert tmpl.render(bar=bar) == unicode(not 42 in bar) + + def test_implicit_subscribed_tuple(self): + class Foo(object): + def __getitem__(self, x): + return x + t = env.from_string('{{ foo[1, 2] }}') + assert t.render(foo=Foo()) == u'(1, 2)' + + def test_raw2(self): + tmpl = env.from_string('{% raw %}{{ FOO }} and {% BAR %}{% endraw %}') + assert tmpl.render() == '{{ FOO }} and {% BAR %}' + + def test_const(self): + tmpl = env.from_string('{{ true }}|{{ false }}|{{ none }}|' + '{{ none is defined }}|{{ missing is defined }}') + assert tmpl.render() == 'True|False|None|True|False' + + def test_neg_filter_priority(self): + node = env.parse('{{ -1|foo }}') + assert isinstance(node.body[0].nodes[0], nodes.Filter) + assert isinstance(node.body[0].nodes[0].node, nodes.Neg) + + def test_const_assign(self): + constass1 = '''{% set true = 42 %}''' + constass2 = '''{% for none in seq %}{% endfor %}''' + for tmpl in constass1, constass2: + self.assert_raises(TemplateSyntaxError, env.from_string, tmpl) + + def test_localset(self): + tmpl = env.from_string('''{% set foo = 0 %}\ +{% for item in [1, 2] %}{% set foo = 1 %}{% endfor %}\ +{{ foo }}''') + assert tmpl.render() == '0' + + def test_parse_unary(self): + tmpl = env.from_string('{{ -foo["bar"] }}') + assert tmpl.render(foo={'bar': 42}) == '-42' + tmpl = env.from_string('{{ -foo["bar"]|abs }}') + assert tmpl.render(foo={'bar': 42}) == '42' + + +def suite(): + suite = unittest.TestSuite() + suite.addTest(unittest.makeSuite(LexerTestCase)) + suite.addTest(unittest.makeSuite(ParserTestCase)) + suite.addTest(unittest.makeSuite(SyntaxTestCase)) + return suite |