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', present but not set, and the invalid 'whatever'.  There
is a separate test for the parameter not present.

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

]]

function p:test_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'}, {''}, {'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 when |script=arab or |script=latn

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


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

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

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

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

]]

function p:test_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'}, {''}, {'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 when |script=arab or |script=latn

|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_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 not 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_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_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;

return p