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mwparserfromhell
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A Python parser for MediaWiki wikicode https://mwparserfromhell.readthedocs.io/
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mwparserfromhell/tests/test_builder.py

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  1. #

  2. # Copyright (C) 2012-2019 Ben Kurtovic <ben.kurtovic@gmail.com>

  3. #

  4. # Permission is hereby granted, free of charge, to any person obtaining a copy

  5. # of this software and associated documentation files (the "Software"), to deal

  6. # in the Software without restriction, including without limitation the rights

  7. # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

  8. # copies of the Software, and to permit persons to whom the Software is

  9. # furnished to do so, subject to the following conditions:

  10. #

  11. # The above copyright notice and this permission notice shall be included in

  12. # all copies or substantial portions of the Software.

  13. #

  14. # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

  15. # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

  16. # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

  17. # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

  18. # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

  19. # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE

  20. # SOFTWARE.

  21. 

  22. import unittest

  23. 

  24. from mwparserfromhell.nodes import (Argument, Comment, ExternalLink, Heading,

  25.                                     HTMLEntity, Tag, Template, Text, Wikilink)

  26. from mwparserfromhell.nodes.extras import Attribute, Parameter

  27. from mwparserfromhell.parser import tokens, ParserError

  28. from mwparserfromhell.parser.builder import Builder

  29. 

  30. from ._test_tree_equality import TreeEqualityTestCase, wrap, wraptext

  31. 

  32. class TestBuilder(TreeEqualityTestCase):

  33.     """Tests for the builder, which turns tokens into Wikicode objects."""

  34. 

  35.     def setUp(self):

  36.         self.builder = Builder()

  37. 

  38.     def test_text(self):

  39.         """tests for building Text nodes"""

  40.         tests = [

  41.             ([tokens.Text(text="foobar")], wraptext("foobar")),

  42.             ([tokens.Text(text="fóóbar")], wraptext("fóóbar")),

  43.             ([tokens.Text(text="spam"), tokens.Text(text="eggs")],

  44.              wraptext("spam", "eggs")),

  45.         ]

  46.         for test, valid in tests:

  47.             self.assertWikicodeEqual(valid, self.builder.build(test))

  48. 

  49.     def test_template(self):

  50.         """tests for building Template nodes"""

  51.         tests = [

  52.             ([tokens.TemplateOpen(), tokens.Text(text="foobar"),

  53.               tokens.TemplateClose()],

  54.              wrap([Template(wraptext("foobar"))])),

  55. 

  56.             ([tokens.TemplateOpen(), tokens.Text(text="spam"),

  57.               tokens.Text(text="eggs"), tokens.TemplateClose()],

  58.              wrap([Template(wraptext("spam", "eggs"))])),

  59. 

  60.             ([tokens.TemplateOpen(), tokens.Text(text="foo"),

  61.               tokens.TemplateParamSeparator(), tokens.Text(text="bar"),

  62.               tokens.TemplateClose()],

  63.              wrap([Template(wraptext("foo"), params=[

  64.                  Parameter(wraptext("1"), wraptext("bar"), showkey=False)])])),

  65. 

  66.             ([tokens.TemplateOpen(), tokens.Text(text="foo"),

  67.               tokens.TemplateParamSeparator(), tokens.Text(text="bar"),

  68.               tokens.TemplateParamEquals(), tokens.Text(text="baz"),

  69.               tokens.TemplateClose()],

  70.              wrap([Template(wraptext("foo"), params=[

  71.                  Parameter(wraptext("bar"), wraptext("baz"))])])),

  72. 

  73.             ([tokens.TemplateOpen(), tokens.TemplateParamSeparator(),

  74.               tokens.TemplateParamSeparator(), tokens.TemplateParamEquals(),

  75.               tokens.TemplateParamSeparator(), tokens.TemplateClose()],

  76.              wrap([Template(wrap([]), params=[

  77.                  Parameter(wraptext("1"), wrap([]), showkey=False),

  78.                  Parameter(wrap([]), wrap([]), showkey=True),

  79.                  Parameter(wraptext("2"), wrap([]), showkey=False)])])),

  80. 

  81.             ([tokens.TemplateOpen(), tokens.Text(text="foo"),

  82.               tokens.TemplateParamSeparator(), tokens.Text(text="bar"),

  83.               tokens.TemplateParamEquals(), tokens.Text(text="baz"),

  84.               tokens.TemplateParamSeparator(), tokens.Text(text="biz"),

  85.               tokens.TemplateParamSeparator(), tokens.Text(text="buzz"),

  86.               tokens.TemplateParamSeparator(), tokens.Text(text="3"),

  87.               tokens.TemplateParamEquals(), tokens.Text(text="buff"),

  88.               tokens.TemplateParamSeparator(), tokens.Text(text="baff"),

  89.               tokens.TemplateClose()],

  90.              wrap([Template(wraptext("foo"), params=[

  91.                  Parameter(wraptext("bar"), wraptext("baz")),

  92.                  Parameter(wraptext("1"), wraptext("biz"), showkey=False),

  93.                  Parameter(wraptext("2"), wraptext("buzz"), showkey=False),

  94.                  Parameter(wraptext("3"), wraptext("buff")),

  95.                  Parameter(wraptext("3"), wraptext("baff"),

  96.                            showkey=False)])])),

  97.         ]

  98.         for test, valid in tests:

  99.             self.assertWikicodeEqual(valid, self.builder.build(test))

  100. 

  101.     def test_argument(self):

  102.         """tests for building Argument nodes"""

  103.         tests = [

  104.             ([tokens.ArgumentOpen(), tokens.Text(text="foobar"),

  105.               tokens.ArgumentClose()],

  106.              wrap([Argument(wraptext("foobar"))])),

  107. 

  108.             ([tokens.ArgumentOpen(), tokens.Text(text="spam"),

  109.               tokens.Text(text="eggs"), tokens.ArgumentClose()],

  110.              wrap([Argument(wraptext("spam", "eggs"))])),

  111. 

  112.             ([tokens.ArgumentOpen(), tokens.Text(text="foo"),

  113.               tokens.ArgumentSeparator(), tokens.Text(text="bar"),

  114.               tokens.ArgumentClose()],

  115.              wrap([Argument(wraptext("foo"), wraptext("bar"))])),

  116. 

  117.             ([tokens.ArgumentOpen(), tokens.Text(text="foo"),

  118.               tokens.Text(text="bar"), tokens.ArgumentSeparator(),

  119.               tokens.Text(text="baz"), tokens.Text(text="biz"),

  120.               tokens.ArgumentClose()],

  121.              wrap([Argument(wraptext("foo", "bar"), wraptext("baz", "biz"))])),

  122.         ]

  123.         for test, valid in tests:

  124.             self.assertWikicodeEqual(valid, self.builder.build(test))

  125. 

  126.     def test_wikilink(self):

  127.         """tests for building Wikilink nodes"""

  128.         tests = [

  129.             ([tokens.WikilinkOpen(), tokens.Text(text="foobar"),

  130.               tokens.WikilinkClose()],

  131.              wrap([Wikilink(wraptext("foobar"))])),

  132. 

  133.             ([tokens.WikilinkOpen(), tokens.Text(text="spam"),

  134.               tokens.Text(text="eggs"), tokens.WikilinkClose()],

  135.              wrap([Wikilink(wraptext("spam", "eggs"))])),

  136. 

  137.             ([tokens.WikilinkOpen(), tokens.Text(text="foo"),

  138.               tokens.WikilinkSeparator(), tokens.Text(text="bar"),

  139.               tokens.WikilinkClose()],

  140.              wrap([Wikilink(wraptext("foo"), wraptext("bar"))])),

  141. 

  142.             ([tokens.WikilinkOpen(), tokens.Text(text="foo"),

  143.               tokens.Text(text="bar"), tokens.WikilinkSeparator(),

  144.               tokens.Text(text="baz"), tokens.Text(text="biz"),

  145.               tokens.WikilinkClose()],

  146.              wrap([Wikilink(wraptext("foo", "bar"), wraptext("baz", "biz"))])),

  147.         ]

  148.         for test, valid in tests:

  149.             self.assertWikicodeEqual(valid, self.builder.build(test))

  150. 

  151.     def test_external_link(self):

  152.         """tests for building ExternalLink nodes"""

  153.         tests = [

  154.             ([tokens.ExternalLinkOpen(brackets=False),

  155.               tokens.Text(text="http://example.com/"),

  156.               tokens.ExternalLinkClose()],

  157.              wrap([ExternalLink(wraptext("http://example.com/"),

  158.                                 brackets=False)])),

  159. 

  160.             ([tokens.ExternalLinkOpen(brackets=True),

  161.               tokens.Text(text="http://example.com/"),

  162.               tokens.ExternalLinkClose()],

  163.              wrap([ExternalLink(wraptext("http://example.com/"))])),

  164. 

  165.             ([tokens.ExternalLinkOpen(brackets=True),

  166.               tokens.Text(text="http://example.com/"),

  167.               tokens.ExternalLinkSeparator(), tokens.ExternalLinkClose()],

  168.              wrap([ExternalLink(wraptext("http://example.com/"), wrap([]))])),

  169. 

  170.             ([tokens.ExternalLinkOpen(brackets=True),

  171.               tokens.Text(text="http://example.com/"),

  172.               tokens.ExternalLinkSeparator(), tokens.Text(text="Example"),

  173.               tokens.ExternalLinkClose()],

  174.              wrap([ExternalLink(wraptext("http://example.com/"),

  175.                                 wraptext("Example"))])),

  176. 

  177.             ([tokens.ExternalLinkOpen(brackets=False),

  178.               tokens.Text(text="http://example"), tokens.Text(text=".com/foo"),

  179.               tokens.ExternalLinkClose()],

  180.              wrap([ExternalLink(wraptext("http://example", ".com/foo"),

  181.                                 brackets=False)])),

  182. 

  183.             ([tokens.ExternalLinkOpen(brackets=True),

  184.               tokens.Text(text="http://example"), tokens.Text(text=".com/foo"),

  185.               tokens.ExternalLinkSeparator(), tokens.Text(text="Example"),

  186.               tokens.Text(text=" Web Page"), tokens.ExternalLinkClose()],

  187.              wrap([ExternalLink(wraptext("http://example", ".com/foo"),

  188.                                 wraptext("Example", " Web Page"))])),

  189.         ]

  190.         for test, valid in tests:

  191.             self.assertWikicodeEqual(valid, self.builder.build(test))

  192. 

  193.     def test_html_entity(self):

  194.         """tests for building HTMLEntity nodes"""

  195.         tests = [

  196.             ([tokens.HTMLEntityStart(), tokens.Text(text="nbsp"),

  197.               tokens.HTMLEntityEnd()],

  198.              wrap([HTMLEntity("nbsp", named=True, hexadecimal=False)])),

  199. 

  200.             ([tokens.HTMLEntityStart(), tokens.HTMLEntityNumeric(),

  201.               tokens.Text(text="107"), tokens.HTMLEntityEnd()],

  202.              wrap([HTMLEntity("107", named=False, hexadecimal=False)])),

  203. 

  204.             ([tokens.HTMLEntityStart(), tokens.HTMLEntityNumeric(),

  205.               tokens.HTMLEntityHex(char="X"), tokens.Text(text="6B"),

  206.               tokens.HTMLEntityEnd()],

  207.              wrap([HTMLEntity("6B", named=False, hexadecimal=True,

  208.                               hex_char="X")])),

  209.         ]

  210.         for test, valid in tests:

  211.             self.assertWikicodeEqual(valid, self.builder.build(test))

  212. 

  213.     def test_heading(self):

  214.         """tests for building Heading nodes"""

  215.         tests = [

  216.             ([tokens.HeadingStart(level=2), tokens.Text(text="foobar"),

  217.               tokens.HeadingEnd()],

  218.              wrap([Heading(wraptext("foobar"), 2)])),

  219. 

  220.             ([tokens.HeadingStart(level=4), tokens.Text(text="spam"),

  221.               tokens.Text(text="eggs"), tokens.HeadingEnd()],

  222.              wrap([Heading(wraptext("spam", "eggs"), 4)])),

  223.         ]

  224.         for test, valid in tests:

  225.             self.assertWikicodeEqual(valid, self.builder.build(test))

  226. 

  227.     def test_comment(self):

  228.         """tests for building Comment nodes"""

  229.         tests = [

  230.             ([tokens.CommentStart(), tokens.Text(text="foobar"),

  231.               tokens.CommentEnd()],

  232.              wrap([Comment("foobar")])),

  233. 

  234.             ([tokens.CommentStart(), tokens.Text(text="spam"),

  235.               tokens.Text(text="eggs"), tokens.CommentEnd()],

  236.              wrap([Comment("spameggs")])),

  237.         ]

  238.         for test, valid in tests:

  239.             self.assertWikicodeEqual(valid, self.builder.build(test))

  240. 

  241.     def test_tag(self):

  242.         """tests for building Tag nodes"""

  243.         tests = [

  244.             # <ref></ref>

  245.             ([tokens.TagOpenOpen(), tokens.Text(text="ref"),

  246.               tokens.TagCloseOpen(padding=""), tokens.TagOpenClose(),

  247.               tokens.Text(text="ref"), tokens.TagCloseClose()],

  248.              wrap([Tag(wraptext("ref"), wrap([]),

  249.                        closing_tag=wraptext("ref"))])),

  250. 

  251.             # <ref name></ref>

  252.             ([tokens.TagOpenOpen(), tokens.Text(text="ref"),

  253.               tokens.TagAttrStart(pad_first=" ", pad_before_eq="",

  254.                                   pad_after_eq=""),

  255.               tokens.Text(text="name"), tokens.TagCloseOpen(padding=""),

  256.               tokens.TagOpenClose(), tokens.Text(text="ref"),

  257.               tokens.TagCloseClose()],

  258.              wrap([Tag(wraptext("ref"), wrap([]),

  259.                       attrs=[Attribute(wraptext("name"))])])),

  260. 

  261.             # <ref name="abc" />

  262.             ([tokens.TagOpenOpen(), tokens.Text(text="ref"),

  263.               tokens.TagAttrStart(pad_first=" ", pad_before_eq="",

  264.                                   pad_after_eq=""),

  265.               tokens.Text(text="name"), tokens.TagAttrEquals(),

  266.               tokens.TagAttrQuote(char='"'), tokens.Text(text="abc"),

  267.               tokens.TagCloseSelfclose(padding=" ")],

  268.              wrap([Tag(wraptext("ref"),

  269.                        attrs=[Attribute(wraptext("name"), wraptext("abc"))],

  270.                        self_closing=True, padding=" ")])),

  271. 

  272.             # <br/>

  273.             ([tokens.TagOpenOpen(), tokens.Text(text="br"),

  274.               tokens.TagCloseSelfclose(padding="")],

  275.              wrap([Tag(wraptext("br"), self_closing=True)])),

  276. 

  277.             # <li>

  278.             ([tokens.TagOpenOpen(), tokens.Text(text="li"),

  279.               tokens.TagCloseSelfclose(padding="", implicit=True)],

  280.              wrap([Tag(wraptext("li"), self_closing=True, implicit=True)])),

  281. 

  282.             # </br>

  283.             ([tokens.TagOpenOpen(invalid=True), tokens.Text(text="br"),

  284.               tokens.TagCloseSelfclose(padding="", implicit=True)],

  285.              wrap([Tag(wraptext("br"), self_closing=True, invalid=True,

  286.                        implicit=True)])),

  287. 

  288.             # </br/>

  289.             ([tokens.TagOpenOpen(invalid=True), tokens.Text(text="br"),

  290.               tokens.TagCloseSelfclose(padding="")],

  291.              wrap([Tag(wraptext("br"), self_closing=True, invalid=True)])),

  292. 

  293.             # <ref name={{abc}}   foo="bar {{baz}}" abc={{de}}f ghi=j{{k}}{{l}}

  294.             #      mno =  '{{p}} [[q]] {{r}}'>[[Source]]</ref>

  295.             ([tokens.TagOpenOpen(), tokens.Text(text="ref"),

  296.               tokens.TagAttrStart(pad_first=" ", pad_before_eq="",

  297.                                   pad_after_eq=""),

  298.               tokens.Text(text="name"), tokens.TagAttrEquals(),

  299.               tokens.TemplateOpen(), tokens.Text(text="abc"),

  300.               tokens.TemplateClose(),

  301.               tokens.TagAttrStart(pad_first="   ", pad_before_eq="",

  302.                                   pad_after_eq=""),

  303.               tokens.Text(text="foo"), tokens.TagAttrEquals(),

  304.               tokens.TagAttrQuote(char='"'), tokens.Text(text="bar "),

  305.               tokens.TemplateOpen(), tokens.Text(text="baz"),

  306.               tokens.TemplateClose(),

  307.               tokens.TagAttrStart(pad_first=" ", pad_before_eq="",

  308.                                   pad_after_eq=""),

  309.               tokens.Text(text="abc"), tokens.TagAttrEquals(),

  310.               tokens.TemplateOpen(), tokens.Text(text="de"),

  311.               tokens.TemplateClose(), tokens.Text(text="f"),

  312.               tokens.TagAttrStart(pad_first=" ", pad_before_eq="",

  313.                                   pad_after_eq=""),

  314.               tokens.Text(text="ghi"), tokens.TagAttrEquals(),

  315.               tokens.Text(text="j"), tokens.TemplateOpen(),

  316.               tokens.Text(text="k"), tokens.TemplateClose(),

  317.               tokens.TemplateOpen(), tokens.Text(text="l"),

  318.               tokens.TemplateClose(),

  319.               tokens.TagAttrStart(pad_first=" \n ", pad_before_eq=" ",

  320.                                   pad_after_eq="  "),

  321.               tokens.Text(text="mno"), tokens.TagAttrEquals(),

  322.               tokens.TagAttrQuote(char="'"), tokens.TemplateOpen(),

  323.               tokens.Text(text="p"), tokens.TemplateClose(),

  324.               tokens.Text(text=" "), tokens.WikilinkOpen(),

  325.               tokens.Text(text="q"), tokens.WikilinkClose(),

  326.               tokens.Text(text=" "), tokens.TemplateOpen(),

  327.               tokens.Text(text="r"), tokens.TemplateClose(),

  328.               tokens.TagCloseOpen(padding=""), tokens.WikilinkOpen(),

  329.               tokens.Text(text="Source"), tokens.WikilinkClose(),

  330.               tokens.TagOpenClose(), tokens.Text(text="ref"),

  331.               tokens.TagCloseClose()],

  332.              wrap([Tag(wraptext("ref"), wrap([Wikilink(wraptext("Source"))]), [

  333.                     Attribute(wraptext("name"),

  334.                               wrap([Template(wraptext("abc"))]), None),

  335.                     Attribute(wraptext("foo"), wrap([Text("bar "),

  336.                               Template(wraptext("baz"))]), pad_first="   "),

  337.                     Attribute(wraptext("abc"), wrap([Template(wraptext("de")),

  338.                               Text("f")]), None),

  339.                     Attribute(wraptext("ghi"), wrap([Text("j"),

  340.                               Template(wraptext("k")),

  341.                               Template(wraptext("l"))]), None),

  342.                     Attribute(wraptext("mno"), wrap([Template(wraptext("p")),

  343.                               Text(" "), Wikilink(wraptext("q")), Text(" "),

  344.                               Template(wraptext("r"))]), "'", " \n ", " ",

  345.                               "  ")])])),

  346. 

  347.             # "''italic text''"

  348.             ([tokens.TagOpenOpen(wiki_markup="''"), tokens.Text(text="i"),

  349.               tokens.TagCloseOpen(), tokens.Text(text="italic text"),

  350.               tokens.TagOpenClose(), tokens.Text(text="i"),

  351.               tokens.TagCloseClose()],

  352.              wrap([Tag(wraptext("i"), wraptext("italic text"),

  353.                        wiki_markup="''")])),

  354. 

  355.             # * bullet

  356.             ([tokens.TagOpenOpen(wiki_markup="*"), tokens.Text(text="li"),

  357.               tokens.TagCloseSelfclose(), tokens.Text(text=" bullet")],

  358.              wrap([Tag(wraptext("li"), wiki_markup="*", self_closing=True),

  359.                    Text(" bullet")])),

  360.         ]

  361.         for test, valid in tests:

  362.             self.assertWikicodeEqual(valid, self.builder.build(test))

  363. 

  364.     def test_integration(self):

  365.         """a test for building a combination of templates together"""

  366.         # {{{{{{{{foo}}bar|baz=biz}}buzz}}usr|{{bin}}}}

  367.         test = [tokens.TemplateOpen(), tokens.TemplateOpen(),

  368.                 tokens.TemplateOpen(), tokens.TemplateOpen(),

  369.                 tokens.Text(text="foo"), tokens.TemplateClose(),

  370.                 tokens.Text(text="bar"), tokens.TemplateParamSeparator(),

  371.                 tokens.Text(text="baz"), tokens.TemplateParamEquals(),

  372.                 tokens.Text(text="biz"), tokens.TemplateClose(),

  373.                 tokens.Text(text="buzz"), tokens.TemplateClose(),

  374.                 tokens.Text(text="usr"), tokens.TemplateParamSeparator(),

  375.                 tokens.TemplateOpen(), tokens.Text(text="bin"),

  376.                 tokens.TemplateClose(), tokens.TemplateClose()]

  377.         valid = wrap(

  378.             [Template(wrap([Template(wrap([Template(wrap([Template(wraptext(

  379.             "foo")), Text("bar")]), params=[Parameter(wraptext("baz"),

  380.             wraptext("biz"))]), Text("buzz")])), Text("usr")]), params=[

  381.             Parameter(wraptext("1"), wrap([Template(wraptext("bin"))]),

  382.             showkey=False)])])

  383.         self.assertWikicodeEqual(valid, self.builder.build(test))

  384. 

  385.     def test_integration2(self):

  386.         """an even more audacious test for building a horrible wikicode mess"""

  387.         # {{a|b|{{c|[[d]]{{{e}}}}}}}[[f|{{{g}}}<!--h-->]]{{i|j=&nbsp;}}

  388.         test = [tokens.TemplateOpen(), tokens.Text(text="a"),

  389.                 tokens.TemplateParamSeparator(), tokens.Text(text="b"),

  390.                 tokens.TemplateParamSeparator(), tokens.TemplateOpen(),

  391.                 tokens.Text(text="c"), tokens.TemplateParamSeparator(),

  392.                 tokens.WikilinkOpen(), tokens.Text(text="d"),

  393.                 tokens.WikilinkClose(), tokens.ArgumentOpen(),

  394.                 tokens.Text(text="e"), tokens.ArgumentClose(),

  395.                 tokens.TemplateClose(), tokens.TemplateClose(),

  396.                 tokens.WikilinkOpen(), tokens.Text(text="f"),

  397.                 tokens.WikilinkSeparator(), tokens.ArgumentOpen(),

  398.                 tokens.Text(text="g"), tokens.ArgumentClose(),

  399.                 tokens.CommentStart(), tokens.Text(text="h"),

  400.                 tokens.CommentEnd(), tokens.WikilinkClose(),

  401.                 tokens.TemplateOpen(), tokens.Text(text="i"),

  402.                 tokens.TemplateParamSeparator(), tokens.Text(text="j"),

  403.                 tokens.TemplateParamEquals(), tokens.HTMLEntityStart(),

  404.                 tokens.Text(text="nbsp"), tokens.HTMLEntityEnd(),

  405.                 tokens.TemplateClose()]

  406.         valid = wrap(

  407.             [Template(wraptext("a"), params=[Parameter(wraptext("1"), wraptext(

  408.             "b"), showkey=False), Parameter(wraptext("2"), wrap([Template(

  409.             wraptext("c"), params=[Parameter(wraptext("1"), wrap([Wikilink(

  410.             wraptext("d")), Argument(wraptext("e"))]), showkey=False)])]),

  411.             showkey=False)]), Wikilink(wraptext("f"), wrap([Argument(wraptext(

  412.             "g")), Comment("h")])), Template(wraptext("i"), params=[

  413.             Parameter(wraptext("j"), wrap([HTMLEntity("nbsp",

  414.             named=True)]))])])

  415.         self.assertWikicodeEqual(valid, self.builder.build(test))

  416. 

  417.     def test_parser_errors(self):

  418.         """test whether ParserError gets thrown for bad input"""

  419.         missing_closes = [

  420.             [tokens.TemplateOpen(), tokens.TemplateParamSeparator()],

  421.             [tokens.TemplateOpen()], [tokens.ArgumentOpen()],

  422.             [tokens.WikilinkOpen()], [tokens.ExternalLinkOpen()],

  423.             [tokens.HeadingStart()], [tokens.CommentStart()],

  424.             [tokens.TagOpenOpen(), tokens.TagAttrStart()],

  425.             [tokens.TagOpenOpen()]

  426.         ]

  427. 

  428.         msg = r"_handle_token\(\) got unexpected TemplateClose"

  429.         self.assertRaisesRegex(ParserError, msg, self.builder.build, [tokens.TemplateClose()])

  430.         for test in missing_closes:

  431.             self.assertRaises(ParserError, self.builder.build, test)

  432. 

  433. if __name__ == "__main__":

  434.     unittest.main(verbosity=2)