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

  2. #

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

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

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

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

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

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

  9. #

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

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

  12. #

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

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

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

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

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

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

  19. # SOFTWARE.

  20. 

  21. """

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

  23. """

  24. 

  25. import pytest

  26. 

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

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

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

  30. from mwparserfromhell.parser import tokens, ParserError

  31. from mwparserfromhell.parser.builder import Builder

  32. from .conftest import assert_wikicode_equal, wrap, wraptext

  33. 

  34. @pytest.fixture()

  35. def builder():

  36.     return Builder()

  37. 

  38. @pytest.mark.parametrize("test,valid", [

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

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

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

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

  43. ])

  44. def test_text(builder, test, valid):

  45.     """tests for building Text nodes"""

  46.     assert_wikicode_equal(valid, builder.build(test))

  47. 

  48. @pytest.mark.parametrize("test,valid", [

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

  50.       tokens.TemplateClose()],

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

  52. 

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

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

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

  56. 

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

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

  59.       tokens.TemplateClose()],

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

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

  62. 

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

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

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

  66.       tokens.TemplateClose()],

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

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

  69. 

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

  71.       tokens.TemplateParamSeparator(), tokens.TemplateParamEquals(),

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

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

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

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

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

  77. 

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

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

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

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

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

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

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

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

  86.       tokens.TemplateClose()],

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

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

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

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

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

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

  93.                    showkey=False)])])),

  94. ])

  95. def test_template(builder, test, valid):

  96.     """tests for building Template nodes"""

  97.     assert_wikicode_equal(valid, builder.build(test))

  98. 

  99. @pytest.mark.parametrize("test,valid", [

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

  101.       tokens.ArgumentClose()],

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

  103. 

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

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

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

  107. 

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

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

  110.       tokens.ArgumentClose()],

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

  112. 

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

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

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

  116.       tokens.ArgumentClose()],

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

  118. ])

  119. def test_argument(builder, test, valid):

  120.     """tests for building Argument nodes"""

  121.     assert_wikicode_equal(valid, builder.build(test))

  122. 

  123. @pytest.mark.parametrize("test,valid", [

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

  125.       tokens.WikilinkClose()],

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

  127. 

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

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

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

  131. 

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

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

  134.       tokens.WikilinkClose()],

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

  136. 

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

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

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

  140.       tokens.WikilinkClose()],

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

  142. ])

  143. def test_wikilink(builder, test, valid):

  144.     """tests for building Wikilink nodes"""

  145.     assert_wikicode_equal(valid, builder.build(test))

  146. 

  147. @pytest.mark.parametrize("test,valid", [

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

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

  150.       tokens.ExternalLinkClose()],

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

  152.                         brackets=False)])),

  153. 

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

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

  156.       tokens.ExternalLinkClose()],

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

  158. 

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

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

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

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

  163. 

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

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

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

  167.       tokens.ExternalLinkClose()],

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

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

  170. 

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

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

  173.       tokens.ExternalLinkClose()],

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

  175.                         brackets=False)])),

  176. 

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

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

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

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

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

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

  183. ])

  184. def test_external_link(builder, test, valid):

  185.     """tests for building ExternalLink nodes"""

  186.     assert_wikicode_equal(valid, builder.build(test))

  187. 

  188. @pytest.mark.parametrize("test,valid", [

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

  190.       tokens.HTMLEntityEnd()],

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

  192. 

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

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

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

  196. 

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

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

  199.       tokens.HTMLEntityEnd()],

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

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

  202. ])

  203. def test_html_entity(builder, test, valid):

  204.     """tests for building HTMLEntity nodes"""

  205.     assert_wikicode_equal(valid, builder.build(test))

  206. 

  207. @pytest.mark.parametrize("test,valid", [

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

  209.       tokens.HeadingEnd()],

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

  211. 

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

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

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

  215. ])

  216. def test_heading(builder, test, valid):

  217.     """tests for building Heading nodes"""

  218.     assert_wikicode_equal(valid, builder.build(test))

  219. 

  220. @pytest.mark.parametrize("test,valid", [

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

  222.       tokens.CommentEnd()],

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

  224. 

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

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

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

  228. ])

  229. def test_comment(builder, test, valid):

  230.     """tests for building Comment nodes"""

  231.     assert_wikicode_equal(valid, builder.build(test))

  232. 

  233. @pytest.mark.parametrize("test,valid", [

  234.     # <ref></ref>

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

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

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

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

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

  240. 

  241.     # <ref name></ref>

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

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

  244.                           pad_after_eq=""),

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

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

  247.       tokens.TagCloseClose()],

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

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

  250. 

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

  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.TagAttrEquals(),

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

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

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

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

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

  261. 

  262.     # <br/>

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

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

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

  266. 

  267.     # <li>

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

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

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

  271. 

  272.     # </br>

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

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

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

  276.                implicit=True)])),

  277. 

  278.     # </br/>

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

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

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

  282. 

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

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

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

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

  287.                           pad_after_eq=""),

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

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

  290.       tokens.TemplateClose(),

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

  292.                           pad_after_eq=""),

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

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

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

  296.       tokens.TemplateClose(),

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

  298.                           pad_after_eq=""),

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

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

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

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

  303.                           pad_after_eq=""),

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

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

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

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

  308.       tokens.TemplateClose(),

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

  310.                           pad_after_eq="  "),

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

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

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

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

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

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

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

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

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

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

  321.       tokens.TagCloseClose()],

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

  323.             Attribute(wraptext("name"),

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

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

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

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

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

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

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

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

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

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

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

  335.                       "  ")])])),

  336. 

  337.     # "''italic text''"

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

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

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

  341.       tokens.TagCloseClose()],

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

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

  344. 

  345.     # * bullet

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

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

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

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

  350. ])

  351. def test_tag(builder, test, valid):

  352.     """tests for building Tag nodes"""

  353.     assert_wikicode_equal(valid, builder.build(test))

  354. 

  355. def test_integration(builder):

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

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

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

  359.             tokens.TemplateOpen(), tokens.TemplateOpen(),

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

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

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

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

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

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

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

  367.             tokens.TemplateClose(), tokens.TemplateClose()]

  368.     valid = wrap(

  369.         [Template(wrap([Template(wrap([Template(wrap([Template(wraptext(

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

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

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

  373.         showkey=False)])])

  374.     assert_wikicode_equal(valid, builder.build(test))

  375. 

  376. def test_integration2(builder):

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

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

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

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

  381.             tokens.TemplateParamSeparator(), tokens.TemplateOpen(),

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

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

  384.             tokens.WikilinkClose(), tokens.ArgumentOpen(),

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

  386.             tokens.TemplateClose(), tokens.TemplateClose(),

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

  388.             tokens.WikilinkSeparator(), tokens.ArgumentOpen(),

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

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

  391.             tokens.CommentEnd(), tokens.WikilinkClose(),

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

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

  394.             tokens.TemplateParamEquals(), tokens.HTMLEntityStart(),

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

  396.             tokens.TemplateClose()]

  397.     valid = wrap(

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

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

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

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

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

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

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

  405.         named=True)]))])])

  406.     assert_wikicode_equal(valid, builder.build(test))

  407. 

  408. @pytest.mark.parametrize("tokens", [

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

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

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

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

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

  414.     [tokens.TagOpenOpen()]

  415. ])

  416. def test_parser_errors(builder, tokens):

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

  418.     with pytest.raises(ParserError):

  419.         builder.build(tokens)

  420. 

  421. def test_parser_errors_templateclose(builder):

  422.     with pytest.raises(

  423.         ParserError,

  424.         match=r"_handle_token\(\) got unexpected TemplateClose"

  425.     ):

  426.         builder.build([tokens.TemplateClose()])