Module:Lang/testcases

local p = 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.

]]

function p: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.

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

]]

function p: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.

]]

function p: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.

]]

function p: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.

]]

function p: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.

]]

function p: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.

]]

function p: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}}}).

]]

function p: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.

]]

function p: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.

]]

function p: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=

]]

function p: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.

]]

function p: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.

]]

function p: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.

]]

function p: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= when present but not set, and with values 'default', 'yes', 'no', 'unset', 'invert', and the invalid 'whatever'.
Each value is tested with a language code and a bare script code, as these should sometimes be treated differently.
There is a separate test for the parameter not present.

]]

function p: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='},
			{'Arab|nasu aleunsur alnnayib|italic='},

			{'ar|nasu aleunsur alnnayib|italic=default'},
			{'Arab|nasu aleunsur alnnayib|italic=default'},

			{'ar|nasu aleunsur alnnayib|italic=yes'},
			{'Arab|nasu aleunsur alnnayib|italic=yes'},

			{'ar|nasu aleunsur alnnayib|italic=no'},
			{'Arab|nasu aleunsur alnnayib|italic=no'},

			{"ar|nasu ''aleunsur'' alnnayib|italic=unset"},
			{"Arab|nasu ''aleunsur'' alnnayib|italic=unset"},

			{"ar|nasu ''aleunsur'' alnnayib|italic=invert"},
			{"Arab|nasu ''aleunsur'' alnnayib|italic=invert"},

			{'ar|nasu aleunsur alnnayib|italic=whatever'},
			{'Arab|nasu aleunsur alnnayib|italic=whatever'},
		}, {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

]]

function p: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 (2024-08-30) 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

]]

function p: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

]]

function p: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

]]

function p: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.

]]

function p: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.

]]

function p: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.

]]

function p: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.

]]


function p: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.

]]

function p: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.

]]

function p: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

]]

function p: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

]]

function p: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.

]]

function p:test_28_html_tag_select()
	local 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


return p

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