Module:Lang/testcases

 localp=require('Module:UnitTests')

 --[[ ========================== < L A N G _ T E S T S > ========================== ]]

 --[[ -------------------------- < I T A L I C > --------------------------

 Tests module parameter |italic= with values:
 - 'yes',
 - 'no',
 - 'invert',
 - 'italic',
 - present but not set,
 - invalid 'whatever',
 - parameter not present.

 |italic=yes or |italic=no overrides every other parameter that might set the rendered text's font.

 ]]

 functionp:test_01_lang_italic()
 self:preprocess_equals_preprocess_many('{{#invoke:lang/sandbox|lang|code=ar|text=text|italic=','}}','{{#invoke:lang|lang|code=ar|text=text|italic=','}}',
 {
 {'yes'},
 {'no'},
 {'invert'},
 {'italic'},
 {''},
 {'whatever'},
 },{nowiki=1})
 self:preprocess_equals_preprocess('{{#invoke:lang/sandbox|lang|code=ar|text=text}}','{{#invoke:lang|lang|code=ar|text=text}}',
 {nowiki=1})
 end


 --[[ -------------------------- < I T A L I C _ W I T H _ S C R I P T > --------------------------

 Tests module parameter |italic=yes and |italic=no when |script=arab or |script=latn is set.

 |italic=yes should override whatever |script= might say.

 The value assigned to |script= shall be appended to the language code; for |script=arab the module shall add
 dir="rtl" to the text's enclosing <span> and insert the &lrm; marker.

 2024年11月13日: rewritten; {{lang}} does not support |script= or |region= or |variant= (never has) so these subtags
 must be included in |code=

 ]]

 functionp:test_02_lang_italic_with_script()
 self:preprocess_equals_preprocess_many('{{#invoke:lang/sandbox|lang|text=text|italic=yes|code=ar-','}}','{{#invoke:lang|lang|text=text|italic=yes|code=ar-','}}',
 {
 {'Cyrl'},
 {'latn'},
 },{nowiki=1})
 self:preprocess_equals_preprocess_many('{{#invoke:lang/sandbox|lang|text=text|italic=no|code=ar-','}}','{{#invoke:lang|lang|text=text|italic=no|code=ar-','}}',
 {
 {'Cyrl'},
 {'latn'},
 },{nowiki=1})
 end


 --[[ -------------------------- < R T L > --------------------------

 Tests module parameter |rtl= with values 'yes', 'no', present but not set, and the invalid 'whatever'.
 There is a separate test for the parameter not present.

 |rtl=yes adds dir="rtl" to the text's enclosing <span> and inserts the &lrm; marker.

 ]]

 functionp:test_03_lang_rtl()
 self:preprocess_equals_preprocess_many('{{#invoke:lang/sandbox|lang|code=ar|text=text|rtl=','}}','{{#invoke:lang|lang|code=ar|text=text|rtl=','}}',
 {
 {'yes'},
 {'no'},
 {''},
 {'whatever'},
 },{nowiki=1})
 self:preprocess_equals_preprocess('{{#invoke:lang/sandbox|lang|code=ar|text=text}}','{{#invoke:lang|lang|code=ar|text=text}}',
 {nowiki=1})
 end


 --[[ -------------------------- < I E T F _ D E C O D I N G > --------------------------

 Tests module parameter |code= with values that should not produce error messages:
 	'de', 'de-ch', 'de-CH-1901', 'ru-RU-petr1708', '1ca', es-419.

 ]]

 functionp:test_04_lang_ietf()
 self:preprocess_equals_preprocess_many('{{#invoke:lang/sandbox|lang|text=text|code=','}}','{{#invoke:lang|lang|text=text|code=','}}',
 {
 {'de'},-- code
 {'nav'},-- code
 {'1ca'},-- non-standard code
 {'cmn-Latn'},-- code-script; shall italicize text
 {'he-hebr'},-- code-script; shall insert rtl
 {'de-ch'},-- code-region
 {'de-1901'},-- code-numeric variant
 {'ru-petr1708'},-- code-alnum variant
 {'ca-valencia'},-- code-alpha variant
 {'ru-ru-petr1708'},-- code-region-variant
 {'es-419'},-- code-numeric region
 {'ru-Cyrl-RU'},-- code-script-region
 {'ca-419-valencia'},-- code-numeric reigion-variant
 {'cel-x-proto'},-- private-use
 },{nowiki=1})
 end


 --[[ -------------------------- < I N V E R T _ I T A L I C S > --------------------------

 Tests text ouput with |italic=invert set.

 ]]

 functionp:test_05_lang_invert_italics()
 self:preprocess_equals_preprocess_many('{{#invoke:lang/sandbox|lang|code=ar','}}','{{#invoke:lang|lang|code=ar','}}',
 {
 {'|text=text|italic=invert'},
 {"|text=''text''|italic=invert"},
 {"|text='''''text'''''|italic=invert"},
 {"|text='''text'''|italic=invert"},
 {"|text=''text's''|italic=invert"},
 {"|text=text's|italic=invert"},
 },{nowiki=1})
 end


 --[[ ========================== < L A N G _ X X _ T E S T S > ========================== ]]

 --[[ -------------------------- < I T A L I C > --------------------------

 - 'yes',
 - 'no',
 - 'invert',
 - 'italic',
 - present but not set,
 - invalid 'whatever',
 - parameter not present.


 |italic=yes or |italic=no overrides every other parameter that might set the rendered text's font.

 ]]

 functionp:test_06_lang_xx_italic()
 self:preprocess_equals_preprocess_many('{{#invoke:lang/sandbox|lang_xx_inherit|code=ar|text=text|italic=','}}','{{#invoke:lang|lang_xx_inherit|code=ar|text=text|italic=','}}',
 {
 {'yes'},
 {'no'},
 {'invert'},
 {'italic'},
 {''},
 {'whatever'},
 },{nowiki=1})
 self:preprocess_equals_preprocess('{{#invoke:lang/sandbox|lang_xx_inherit|code=ar|text}}','{{#invoke:lang|lang_xx_inherit|code=ar|text}}',
 {nowiki=1})
 end


 --[[ -------------------------- < I T A L I C _ W I T H _ S C R I P T > --------------------------

 Tests module parameter |italic=yes and |italic=no when |script=arab or |script=latn is set.

 |italic=yes should override whatever |script= might say.

 The value assigned to |script= shall be appended to the language code; for |script=arab the module shall add
 dir="rtl" to the text's enclosing <span> and insert the &lrm; marker.

 ]]

 functionp:test_07_lang_xx_italic_with_script()
 self:preprocess_equals_preprocess_many('{{#invoke:lang/sandbox|lang_xx_inherit|code=ar|text=text|italic=yes|script=','}}','{{#invoke:lang|lang_xx_inherit|code=ar|text=text|italic=yes|script=','}}',
 {
 {'arab'},
 {'latn'},
 },{nowiki=1})
 self:preprocess_equals_preprocess_many('{{#invoke:lang/sandbox|lang_xx_inherit|code=ar|text=text|italic=no|script=','}}','{{#invoke:lang|lang_xx_inherit|code=ar|text=text|italic=no|script=','}}',
 {
 {'arab'},
 {'latn'},
 },{nowiki=1})
 end


 --[[ -------------------------- < S C R I P T > --------------------------

 Tests module parameter |script=arab and |script=latn with |italic= preset but not set and |italic= not present.

 |script=arab shall not italicize text.
 |script=latn shall italicize text.

 The value assigned to |script= shall be appended to the language code; for |script=arab the module shall add
 dir="rtl" to the text's enclosing <span> and insert the &lrm; marker.

 There is no {{lang}} version of this test because {{lang}} has no need for separate |script=, |region=, and |variant=
 parameters - those subtags can all be added to the IETF language code in the template's first positional parameter ({{{1}}}).

 ]]

 functionp:test_08_lang_xx_script()
 self:preprocess_equals_preprocess_many('{{#invoke:lang/sandbox|lang_xx_inherit|code=ar|text=text|italic=|script=','}}','{{#invoke:lang|lang_xx_inherit|code=ar|text=text|italic=|script=','}}',
 {
 {'arab'},
 {'latn'},
 },{nowiki=1})
 self:preprocess_equals_preprocess_many('{{#invoke:lang/sandbox|lang_xx_inherit|code=ar|text=text|script=','}}','{{#invoke:lang|lang_xx_inherit|code=ar|text=text|script=','}}',
 {
 {'arab'},
 {'latn'},
 },{nowiki=1})
 end


 --[[ -------------------------- < R T L > --------------------------

 Tests module parameter |rtl= with values 'yes', 'no', present but not set, and the invalid 'whatever'.
 There is a separate test for the parameter not present.

 |rtl=yes adds dir="rtl" to the text's enclosing <span> and inserts the &lrm; marker.

 ]]

 functionp:test_09_lang_xx_rtl()
 self:preprocess_equals_preprocess_many('{{#invoke:lang/sandbox|lang_xx_inherit|code=ar|text=text|rtl=','}}','{{#invoke:lang|lang_xx_inherit|code=ar|text=text|rtl=','}}',
 {
 {'yes'},
 {'no'},
 {''},
 {'whatever'},
 },{nowiki=1})
 self:preprocess_equals_preprocess('{{#invoke:lang/sandbox|lang_xx_inherit|code=ar|text}}','{{#invoke:lang|lang_xx_inherit|code=ar|text}}',
 {nowiki=1})
 end


 --[[--------------------------< L A N G _ T R A N S L I T >----------------------------------------------------

 Tests various supported combinations of translit formats.

 ]]

 functionp:test_10_lang_xx_translit()
 self:preprocess_equals_preprocess_many('{{#invoke:lang/sandbox|lang_xx_inherit|nocat=yes|','}}','{{#invoke:lang|lang_xx_inherit|nocat=yes|','}}',
 {
 {'code=ar|rtl=yes|text=نص العنصر النائب|translit=nasu aleunsur alnnay'},
 {'code=ar|rtl=yes|text=نص العنصر النائب|translit=nasu aleunsur alnnay|translit-script=Arab'},
 {'code=ar|rtl=yes|text=نص العنصر النائب|translit=nasu aleunsur alnnay|translit-std=DIN'},
 {'code=ar|rtl=yes|text=نص العنصر النائب|translit=nasu aleunsur alnnay|translit-std=ALA'},
 {'code=ar|عربى|translit=ʿarabī'},
 {'code=ar|عربى|translit=ʿarabī|lit=Arabic'},
 {'code=ar|عربى|translit=ʿarabī|translation=Arabic'},
 {'code=ar|عربى|translit=ʿarabī|lit=Arabic|links=no'},
 {'code=ar|عربى|translation=Arabic'},
 {'code=ar|عربى|translation=Arabic|links=no'},
 {'code=ff|text=𞤁𞤢𞤲𞤣𞤢𞤴𞤯𞤫|translit=something|translit-script=Adlm'},
 {'code=ff|text=𞤁𞤢𞤲𞤣𞤢𞤴𞤯𞤫|translit=something|translit-script=Adlm|translit-std=ALA'},
 {'code=ar|text=نص العنصر النائب|translit=nasu aleunsur alnnay|translit-std=DIN|translit-script=arab'},
 {'code=gem|text=test|translit=ʿarabī|translation=Arabic'},-- not valid translations, the test is here to see the link with a collective langauge
 {'code=ath|text=test|translit=ʿarabī|translation=Arabic'},-- not valid translations, the test is here to see the link with a collective langauge
 },{nowiki=1})
 end


 --[[--------------------------< E N G V A R >------------------------------------------------------------------

 Tests various supported and unsupported values assigned to |engvar=

 ]]

 functionp:test_11_lang_xx_engvar()
 self:preprocess_equals_preprocess_many('{{#invoke:lang/sandbox|lang_xx_inherit|nocat=yes|','}}','{{#invoke:lang|lang_xx_inherit|nocat=yes|','}}',
 {
 {'code=ar|rtl=yes|text=نص العنصر النائب|translit=nasu aleunsur alnnay'},-- |engvar= omitted
 {'code=ar|rtl=yes|text=نص العنصر النائب|translit=nasu aleunsur alnnay|engvar='},-- |engvar= empty

 {'code=ar|rtl=yes|text=نص العنصر النائب|translit=nasu aleunsur alnnay|engvar=au'},-- valid engvar language tags
 {'code=ar|rtl=yes|text=نص العنصر النائب|translit=nasu aleunsur alnnay|engvar=ca'},
 {'code=ar|rtl=yes|text=نص العنصر النائب|translit=nasu aleunsur alnnay|engvar=gb'},
 {'code=ar|rtl=yes|text=نص العنصر النائب|translit=nasu aleunsur alnnay|engvar=ie'},
 {'code=ar|rtl=yes|text=نص العنصر النائب|translit=nasu aleunsur alnnay|engvar=in'},
 {'code=ar|rtl=yes|text=نص العنصر النائب|translit=nasu aleunsur alnnay|engvar=nz'},
 {'code=ar|rtl=yes|text=نص العنصر النائب|translit=nasu aleunsur alnnay|engvar=us'},
 {'code=ar|rtl=yes|text=نص العنصر النائب|translit=nasu aleunsur alnnay|engvar=za'},

 {'code=ar|rtl=yes|text=نص العنصر النائب|translit=nasu aleunsur alnnay|engvar=nv'},-- invalid engvar language tag
 },{nowiki=1})
 end


 --[[--------------------------< L I N K _ A N D _ L A B E L >--------------------------------------------------

 Tests various supported combinations of |link= and |label= combinations.

 ]]

 functionp:test_12_lang_xx_link_and_label()
 self:preprocess_equals_preprocess_many('{{#invoke:lang/sandbox|lang_xx_inherit|nocat=yes|','}}','{{#invoke:lang|lang_xx_inherit|nocat=yes|','}}',
 {
 {'code=uk|морити голодом|lit=to kill by starvation|translit=moryty holodom|label=none'},
 {'code=uk|морити голодом|lit=to kill by starvation|translit=moryty holodom|label=none|link=no'},
 {'code=ff|text=test|translit=something|translit-script=Adlm|label=none'},
 {'code=ff|text=test|translit=something|translit-script=Adlm|label=test label'},
 },{nowiki=1})
 end


 --[[ -------------------------- < I N V E R T _ I T A L I C S > --------------------------

 Tests text ouput with |italic=invert set.

 ]]

 functionp:test_13_lang_xx_invert_italics()
 self:preprocess_equals_preprocess_many('{{#invoke:lang/sandbox|lang_xx_inherit|code=ar','}}','{{#invoke:lang|lang_xx_inherit|code=ar','}}',
 {
 {'|text=text|italic=invert'},
 {"|text=''text''|italic=invert"},
 {"|text='''''text'''''|italic=invert"},
 {"|text='''text'''|italic=invert"},
 {"|text=''text's''|italic=invert"},
 {"|text=text's|italic=invert"},
 },{nowiki=1})
 end


 --[[ ========================== < X L I T _ T E S T S > ============================== ]]

 --[[ -------------------------- < X L I T _ F O R M A T S > ------------------------------

 Tests various supported combinations of translit formats.

 ]]

 functionp:test_14_xlit_formats()
 self:preprocess_equals_preprocess_many('{{#invoke:lang/sandbox|xlit|nocat=yes|','}}','{{#invoke:lang|xlit|nocat=yes|','}}',
 {
 -- language with transliteration standard (std) tests:
 {'ja|iso|test'},-- get code value:			x (y language) transliteration
 {'kana|iso|test'},-- get script value:		x (y script) transliteration
 {'oto|iso|test'},-- get default value:		x transliteration

 -- code or script found in "no_std" tests:
 -- TODO: no current code example {'???|test'}, -- no_std code:
 {'xsux|test'},-- no_std script:			x transliteration (whatever the override value is)

 -- translit-script tests:
 {'Cyrl|š'},-- script:						x-script transliteration

 -- no translit-script or std tests:
 {'ar|test'},-- romanization:				x-language romanization
 {'oto|test'},-- romanization collective:	x languages romanization

 },{nowiki=1})
 end


 --[[ -------------------------- < I T A L I C S > --------------------------

 Tests module parameter |italic= with values 'yes', 'no', present but not set, default, unset, and the invalid 'whatever'.
 There is a separate test for the parameter not present.

 ]]

 functionp:test_15_xlit_italics()
 self:preprocess_equals_preprocess_many('{{#invoke:lang/sandbox|xlit|nocat=yes|','}}','{{#invoke:lang|xlit|nocat=yes|','}}',
 {
 {'ar|nasu aleunsur alnnayib|italic='},
 {'ar|nasu aleunsur alnnayib|italic=yes'},
 {'ar|nasu aleunsur alnnayib|italic=no'},
 {'ar|nasu aleunsur alnnayib|italic=default'},
 {'ar|nasu aleunsur alnnayib|italic=whatever'},
 {'ar|nasu \'\'aleunsur\'\' alnnayib|italic=unset'},
 {'Arab|nasu \'\'aleunsur\'\' alnnayib|italic=unset'},
 },{nowiki=1})
 end


 --[[ -------------------------- < E N G V A R >----------------------------------------------------------------

 Tests module parameter |engvar= with various legitimate values and translit standards and engvar spelling in the
 tooltip

 ]]

 functionp:test_16_xlit_engvar()
 self:preprocess_equals_preprocess_many('{{#invoke:lang/sandbox|xlit|nocat=yes|','}}','{{#invoke:lang|xlit|nocat=yes|','}}',
 {
 {'ja|Tōkyō tawā'},-- generic |engvar= omitted: Japanese-language romanization
 {'ja|Tōkyō tawā|envar='},-- generic |engvar= empty: Japanese-language romanization
 {'ja|Tōkyō tawā|engvar=ca'},-- generic with american-english spelling: Japanese-language romanization
 {'ja|Tōkyō tawā|engvar=ie'},-- generic with british-english spelling: Japanese-language romanisation

 {'ko|rr|seongmyeong'},-- tooltip= Revised Romanization of Korean transliteration; default engvar spelling
 {'ko|rr|seongmyeong|engvar='},-- tooltip= default engvar spelling
 {'ko|rr|seongmyeong|engvar=us'},-- tooltip= default engvar spelling 
 {'ko|rr|seongmyeong|engvar=in'},-- tooltip= Revised Romanisation of Korean transliteration
 -- at this writing (2024年08月30日) yaleko romanization not use at en.wiki
 {'ko|yaleko|seongmyeong'},-- tooltip= Yale romanization of Korean; default engvar spelling
 {'ko|yaleko|seongmyeong|engvar='},-- tooltip= default engvar spelling
 {'ko|yaleko|seongmyeong|engvar=us'},-- tooltip= default engvar spelling 
 {'ko|yaleko|seongmyeong|engvar=in'},-- tooltip= Yale romanisation of Korean

 },{nowiki=1})
 end


 --[[ ========================== < C A T E G O R Y _ F R O M _ T A G _ T E S T S > ========================== ]]

 --[[ -------------------------- < C A T E G O R Y _ F R O M _ T A G > --------------------------

 Returns category links from IETF tags.

 A complete list of valid tests can be found here:
 * Module:Lang/testcases/ISO 639-1 category from tag
 * Module:Lang/testcases/ISO 639-3-1 category from tag (A–H)
 * Module:Lang/testcases/ISO 639-3-2 category from tag (I–N)
 * Module:Lang/testcases/ISO 639-3-3 category from tag (O–Z)
 * Module:Lang/testcases/ISO 639 deprecated and override category from tag

 ]]

 functionp:test_17_category_from_tag()
 self:preprocess_equals_preprocess_many('{{#invoke:lang/sandbox|category_from_tag|nocat=yes|','}}','{{#invoke:lang|category_from_tag|nocat=yes|','}}',
 {
 {'fr|link=yes'},
 {'ber|link=yes'},
 {'en|link=yes'},
 {'en-gb|link=yes'},
 {'fr'},
 {'FR'},
 {'ber'},
 {'BER'},
 {'en'},
 {'EN'},
 {'en-gb'},
 {'EN-GB'},
 })
 end


 --[[ ========================== < N A M E _ F R O M _ T A G _ T E S T S > ========================== ]]

 --[[ -------------------------- < N A M E _ F R O M _ T A G > --------------------------

 Returns language names from IETF tags.

 A complete list of valid tests can be found here:
 * Module:Lang/testcases/ISO 639-1 name from tag
 * Module:Lang/testcases/ISO 639-3-1 name from tag (A–H)
 * Module:Lang/testcases/ISO 639-3-2 name from tag (I–N)
 * Module:Lang/testcases/ISO 639-3-3 name from tag (O–Z)
 * Module:Lang/testcases/ISO 639 deprecated and override name from tag

 ]]

 functionp:test_18_name_from_tag()
 self:preprocess_equals_preprocess_many('{{#invoke:lang/sandbox|name_from_tag|nocat=yes|','}}','{{#invoke:lang|name_from_tag|nocat=yes|','}}',
 {
 {'fr|link=yes'},
 {'ber|link=yes'},
 {'en|link=yes'},
 {'en-gb|link=yes'},
 {'fr'},
 {'FR'},
 {'ber'},
 {'BER'},
 {'en'},
 {'EN'},
 {'en-gb'},
 {'EN-GB'},
 })
 end


 --[[ ========================== < T A G _ F R O M _ N A M E _ T E S T S > ========================== ]]

 --[[ -------------------------- < T A G _ F R O M _ N A M E > --------------------------

 Returns language IETF tags from language names.

 A complete list of valid tests can be found here:
 * Module:Lang/testcases/ISO 639-1 tag from name
 * Module:Lang/testcases/ISO 639-3-1 tag from name (A–H)
 * Module:Lang/testcases/ISO 639-3-2 tag from name (I–N)
 * Module:Lang/testcases/ISO 639-3-3 tag from name (O–Z)
 * Module:Lang/testcases/ISO 639 deprecated and override tag from name

 ]]

 functionp:test_19_tag_from_name()
 self:preprocess_equals_preprocess_many('{{#invoke:lang/sandbox|tag_from_name|nocat=yes|','}}','{{#invoke:lang|tag_from_name|nocat=yes|','}}',
 {
 {'french'},
 {'French'},
 {'FRENCH'},
 {'Berber Languages'},
 {'Berber languages'},
 {'British English'},
 {'en'},
 {'EN'},
 })
 end


 --[[ ========================== < I S _ I E T F _ T A G _ T E S T S > ========================== ]]

 --[[ -------------------------- < I S _ I E T F _ T A G > --------------------------

 Returns true if valid IETF tag.

 ]]

 functionp:test_20_is_ietf_tag()
 self:preprocess_equals_preprocess_many('{{#invoke:lang/sandbox|is_ietf_tag|nocat=yes|','}}','{{#invoke:lang|is_ietf_tag|nocat=yes|','}}',
 {
 {'french'},
 {'French'},
 {'FRENCH'},
 {'Berber Languages'},
 {'Berber languages'},
 {'British English'},
 {'fr'},
 {'FR'},
 {'ber'},
 {'BER'},
 {'en'},
 {'EN'},
 {'en-gb'},
 {'EN-GB'},
 })
 end


 --[[ ========================== < I S _ L A N G _ N A M E _ T E S T S > ========================== ]]

 --[[ -------------------------- < I S _ L A N G _ N A M E > --------------------------

 Returns true if valid language name.

 ]]

 functionp:test_21_is_lang_name()
 self:preprocess_equals_preprocess_many('{{#invoke:lang/sandbox|is_lang_name|nocat=yes|','}}','{{#invoke:lang|is_lang_name|nocat=yes|','}}',
 {
 {'french'},
 {'French'},
 {'FRENCH'},
 {'Berber Languages'},
 {'Berber languages'},
 {'British English'},
 {'fr'},
 {'FR'},
 {'ber'},
 {'BER'},
 {'en'},
 {'EN'},
 {'en-gb'},
 {'EN-GB'},
 })
 end


 --[[ ========================== < E R R O R S > ========================== ]]

 --[[--------------------------< L A N G _ E R R O R S >------------------------------------------------------------------------

 Lang errors.

 ]]

 functionp:test_22_lang_errors()
 self:preprocess_equals_preprocess_many('{{#invoke:lang/sandbox|lang|nocat=yes|','}}','{{#invoke:lang|lang|nocat=yes|','}}',
 {
 {''},-- no text
 {'fr'},-- no text
 {'text=text'},-- missing language tag
 {'fr|code=fr|text'},-- conflicting |1= and |code=			
 {'fr|text|text=text'},-- conflicting |2= and |text=
 {'proto=proto-y-bad|text=text'},-- invalid |proto=
 {'fr|\'\'italics\'\''},-- text has italic markup
 {'fr|text={{lang|fr|text=text}}'},-- text already uses lang attribute
 {'fr|malformed\'\'\'\'\'\''},-- text has malformed markup
 {'1ca|text'},-- unrecognized language tag: 1ca
 {'zz|text'},-- unrecognized language code
 {'glg|text'},-- code: glg promoted to code: gl
 {'iw|text'},-- code: iw is deprecated
 },{nowiki=1})
 end


 --[[ -------------------------- < L A N G _ X X _ E R R O R S > --------------------------

 Lang-xx errors.

 ]]


 functionp:test_23_lang_xx_errors()
 self:preprocess_equals_preprocess_many('{{#invoke:lang/sandbox|lang_xx_inherit|nocat=yes|','}}','{{#invoke:lang|lang_xx_inherit|nocat=yes|','}}',
 {
 {''},-- no text
 {'code=fr'},-- no text
 {'text=text'},-- missing language tag
 {'code=fr|text|text=text'},-- conflicting {{{1}}} and |text=
 {'code=fr|text|translit|translit=translit'},-- conflicting {{{2}}} and |translit=
 {'code=fr|text|lit|lit=lit'},-- conflicting {{{3}}} and |lit= or |translation=
 {'code=fr|text|translation|translation=translation'},-- conflicting {{{3}}} and |lit= or |translation=
 {'code=fr|text|lit=lit|translation=translation'},-- conflicting |lit= and |translation=
 {'code=fr|{{lang|fr|text}}'},-- text already uses lang attribute
 {'code=fr-Latn|script=Latn|text'},-- redundant script tag
 {'code=fr|script=nonsense|text'},-- unrecognized script: nonsense for code fr
 {'code=ar|script=Arab|text'},-- script: script: arab not supported for code: ar
 {'code=en-US|region=US|text'},-- redundant region tag
 {'code=de-XL|text'},-- unrecognized region: xl for code de
 {'code=de-1901|variant=1901|text'},-- redundant variant tag
 {'code=de-19022|text'},-- unrecognized variant: 19022
 {'code=de|script=Armn|variant=1901|text'},-- unrecognized variant: 1901 for code-script pair: de-armn
 {'code=en|variant=1901|text'},-- unrecognized variant: 1901 for code: en
 {'code=es-x-419|text'},-- unrecognized private tag: 419
 {'code=ar|rtl=yes|نص العنصر النائب|nasu aleunsur alnnayib|translit-std=bob'},--invalid |translit-std=: bob
 {'code=ar|text=نص العنصر النائب|translit=nasu aleunsur alnnay|translit-std=DIN|translit-script=ar'},-- invalid |translit-script= value
 },{nowiki=1})
 end


 --[[ -------------------------- < X L I T _ E R R O R S > ------------------------------

 Xlit errors.

 ]]

 functionp:test_24_xlit_errors()
 self:preprocess_equals_preprocess_many('{{#invoke:lang/sandbox|xlit|nocat=yes|','}}','{{#invoke:lang|xlit|nocat=yes|','}}',
 {
 {'al-Khwarizmi'},
 {'ar'},
 {'at|al-Khwarizmi'},
 {'ar|AL|al-Khwarizmi'},
 {'Arab|nasu \'\'aleunsur\'\' alnnayib|italic=yes|italics=no'},
 },{nowiki=1})
 end


 --[[ -------------------------- < C A T E G O R Y _ F R O M _ T A G _ E R R O R S > --------------------------

 category_from_tag errors.

 ]]

 functionp:test_25_category_from_tag_errors()
 self:preprocess_equals_preprocess_many('{{#invoke:lang/sandbox|category_from_tag|nocat=yes|','}}','{{#invoke:lang|category_from_tag|nocat=yes|','}}',
 {
 {'sfsfsfs'},
 },{nowiki=1})
 end


 --[[ -------------------------- < N A M E _ F R O M _ T A G _ E R R O R S > --------------------------

 name_from_tag errors.

 A complete list of valid tests can be found here:
 * Module:Lang/testcases/ISO 639-1 name from tag
 * Module:Lang/testcases/ISO 639-3-1 name from tag (A–H)
 * Module:Lang/testcases/ISO 639-3-2 name from tag (I–N)
 * Module:Lang/testcases/ISO 639-3-3 name from tag (O–Z)
 * Module:Lang/testcases/ISO 639 deprecated and override name from tag

 ]]

 functionp:test_26_name_from_tag_errors()
 self:preprocess_equals_preprocess_many('{{#invoke:lang/sandbox|name_from_tag|nocat=yes|','}}','{{#invoke:lang|name_from_tag|nocat=yes|','}}',
 {
 {'sfsfsfs'},
 },{nowiki=1})
 end


 --[[ -------------------------- < T A G _ F R O M _ N A M E _ E R R O R S > --------------------------

 tag_from_name errors.

 A complete list of valid tests can be found here:
 * Module:Lang/testcases/ISO 639-1 tag from name
 * Module:Lang/testcases/ISO 639-3-1 tag from name (A–H)
 * Module:Lang/testcases/ISO 639-3-2 tag from name (I–N)
 * Module:Lang/testcases/ISO 639-3-3 tag from name (O–Z)
 * Module:Lang/testcases/ISO 639 deprecated and override tag from name

 ]]

 functionp:test_27_tag_from_name_errors()
 self:preprocess_equals_preprocess_many('{{#invoke:lang/sandbox|tag_from_name|nocat=yes|','}}','{{#invoke:lang|tag_from_name|nocat=yes|','}}',
 {
 {'sfsfsfs'},
 },{nowiki=1})
 end


 --[[ -------------------------- < H T M L _ T A G _ S E L E C T > --------------------------

 html_tag_select errors.

 ]]

 functionp:test_28_html_tag_select()
 implied_para_content=[[
 Text with...

 implied paragraph breaks.]]
 self:preprocess_equals_preprocess_many(
 '{{#invoke:lang/sandbox|lang_xx_inherit|','}}',
 '{{#invoke:lang|lang_xx_inherit|','}}',
 {
 {'code=ar|نص العنصر النائب'},
 {'code=ar|rtl=yes|نص العنصر النائب'},
 {'code=ar|{{rtl-para|نص العنصر النائب}}'},
 {'code=ar|rtl=yes|{{rtl-para|نص العنصر النائب}}'},
 {'code=en|<poem>a test fails<br>Lua</poem>'},
 {'code=en|'..implied_para_content},
 },{nowiki=1,stripmarker=1})
 end


 returnp