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Module:Redirect hatnote/testcases

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local mRedirectHatnote = require('Module:Redirect hatnote/sandbox')
local _redirect = mRedirectHatnote._redirect
local ScribuntoUnit = require('Module:ScribuntoUnit')
local suite = ScribuntoUnit:new()

--------------------------------------------------------------------------------
-- Helper functions
--------------------------------------------------------------------------------

function suite.runRedirect(args, childArgs)
	-- Runs the "redirect" function with an args table passed from a
	-- parent frame.
	local frame = mw.getCurrentFrame()
	local parent = frame:newChild{args = args}
	local child = parent:newChild{args = childArgs}
	return mRedirectHatnote.redirect(child)
end

--------------------------------------------------------------------------------
-- Test #invoke function basic
--------------------------------------------------------------------------------

function suite:testBlank()
	local result = suite.runRedirect({},{})
	self:assertStringContains('missing redirect parameter', result, true)
	self:assertStringContains('Template:Redirect#Errors', result, true)
end

function suite:testRedirectOnly()
	local result = suite.runRedirect({'REDIRECT'},{1})
	self:assertStringContains('"REDIRECT" redirects here. For other uses, see [[:REDIRECT (disambiguation)]].', result, true)
end

function suite:testUse1()
	local result = suite.runRedirect({'REDIRECT', 'USE1'},{1})
	self:assertStringContains('"REDIRECT" redirects here. For USE1, see [[:REDIRECT (disambiguation)]].', result, true)
end

function suite:testPage1()
	local result = suite.runRedirect({'REDIRECT', 'USE1', 'PAGE1'},{1})
	self:assertStringContains('"REDIRECT" redirects here. For USE1, see [[:PAGE1]].', result, true)
end

function suite:testUse2()
	local result = suite.runRedirect({'REDIRECT', 'USE1', 'PAGE1', 'USE2'},{1})
	self:assertStringContains('"REDIRECT" redirects here. For USE1, see [[:PAGE1]]. For USE2, see [[:REDIRECT (disambiguation)]].', result, true)
end

function suite:testPage2()
	local result = suite.runRedirect({'REDIRECT', 'USE1', 'PAGE1', 'USE2', 'PAGE2'},{1})
	self:assertStringContains('"REDIRECT" redirects here. For USE1, see [[:PAGE1]]. For USE2, see [[:PAGE2]].', result, true)
end

function suite:testUse3()
	local result = suite.runRedirect({'REDIRECT', 'USE1', 'PAGE1', 'USE2', 'PAGE2', 'USE3'},{1})
	self:assertStringContains('"REDIRECT" redirects here. For USE1, see [[:PAGE1]]. For USE2, see [[:PAGE2]]. For USE3, see [[:REDIRECT (disambiguation)]].', result, true)
end

function suite:testPage3()
	local result = suite.runRedirect({'REDIRECT', 'USE1', 'PAGE1', 'USE2', 'PAGE2', 'USE3', 'PAGE3'},{1})
	self:assertStringContains('"REDIRECT" redirects here. For USE1, see [[:PAGE1]]. For USE2, see [[:PAGE2]]. For USE3, see [[:PAGE3]].', result, true)
end

function suite:testUse4()
	local result = suite.runRedirect({'REDIRECT', 'USE1', 'PAGE1', 'USE2', 'PAGE2', 'USE3', 'PAGE3', 'USE4'},{1})
	self:assertStringContains('"REDIRECT" redirects here. For USE1, see [[:PAGE1]]. For USE2, see [[:PAGE2]]. For USE3, see [[:PAGE3]]. For USE4, see [[:REDIRECT (disambiguation)]].', result, true)
end

function suite:testPage4()
	local result = suite.runRedirect({'REDIRECT', 'USE1', 'PAGE1', 'USE2', 'PAGE2', 'USE3', 'PAGE3', 'USE4', 'PAGE4'},{1})
	self:assertStringContains('"REDIRECT" redirects here. For USE1, see [[:PAGE1]]. For USE2, see [[:PAGE2]]. For USE3, see [[:PAGE3]]. For USE4, see [[:PAGE4]].', result, true)
end

function suite:testPipeInput()
	local result = suite.runRedirect({'REDIRECT', 'USE1', 'PAGE1 (disambiguation)|PAGE1', 'USE2', 'PAGE2 (disambiguation)|PAGE2', 'USE3', 'PAGE3 (disambiguation)|PAGE3', 'USE4', 'PAGE4 (disambiguation)|PAGE4'},{1})
	self:assertStringContains('"REDIRECT" redirects here. For USE1, see [[:PAGE1 (disambiguation)|PAGE1]]. For USE2, see [[:PAGE2 (disambiguation)|PAGE2]]. For USE3, see [[:PAGE3 (disambiguation)|PAGE3]]. For USE4, see [[:PAGE4 (disambiguation)|PAGE4]].', result, true)
end

--------------------------------------------------------------------------------
-- Test "and"
--------------------------------------------------------------------------------

function suite:testPage1AndPage2()
	local result = suite.runRedirect({'REDIRECT', 'USE1', 'PAGE1', 'and', 'PAGE2'},{1})
	self:assertStringContains('"REDIRECT" redirects here. For USE1, see [[:PAGE1]] and [[:PAGE2]].', result, true)
end

function suite:testPage2AndPage3()
	local result = suite.runRedirect({'REDIRECT', 'USE1', 'PAGE1', 'USE2', 'PAGE2', 'and', 'PAGE3'},{1})
	self:assertStringContains('"REDIRECT" redirects here. For USE1, see [[:PAGE1]]. For USE2, see [[:PAGE2]] and [[:PAGE3]].', result, true)
end

function suite:testPage1AndPage2Page3AndPage4()
	local result = suite.runRedirect({'REDIRECT', 'USE1', 'PAGE1', 'and', 'PAGE2', 'USE2', 'PAGE3', 'and', 'PAGE4'},{1})
	self:assertStringContains('"REDIRECT" redirects here. For USE1, see [[:PAGE1]] and [[:PAGE2]]. For USE2, see [[:PAGE3]] and [[:PAGE4]].', result, true)
end

function suite:testTwoAnds()
	local result = suite.runRedirect({'REDIRECT', 'USE1', 'PAGE1', 'and', 'PAGE2', 'and', 'PAGE3'},{1})
	self:assertStringContains('"REDIRECT" redirects here. For USE1, see [[:PAGE1]], [[:PAGE2]], and [[:PAGE3]].', result, true)
end

function suite:testThreeAnds()
	local result = suite.runRedirect({'REDIRECT', 'USE1', 'PAGE1', 'and', 'PAGE2', 'and', 'PAGE3', 'and', 'PAGE4'},{1})
	self:assertStringContains('"REDIRECT" redirects here. For USE1, see [[:PAGE1]], [[:PAGE2]], [[:PAGE3]], and [[:PAGE4]].', result, true)
end

function suite:testTwoAndsUse2()
	local result = suite.runRedirect({'REDIRECT', 'USE1', 'PAGE1', 'and', 'PAGE2', 'and', 'PAGE3', 'USE2', 'PAGE4'},{1})
	self:assertStringContains('"REDIRECT" redirects here. For USE1, see [[:PAGE1]], [[:PAGE2]], and [[:PAGE3]]. For USE2, see [[:PAGE4]].', result, true)
end

--------------------------------------------------------------------------------
-- Test skipping parameters
--------------------------------------------------------------------------------

function suite:testUse1Skipped()
	local result = suite.runRedirect({'REDIRECT', '', 'PAGE1'},{1})
	self:assertStringContains('"REDIRECT" redirects here. For other uses, see [[:PAGE1]].', result, true)
end

function suite:testPage1Skipped()
	local result = suite.runRedirect({'REDIRECT', 'USE1', '', 'USE2'},{1})
	self:assertStringContains('"REDIRECT" redirects here. For USE1, see [[:REDIRECT (disambiguation)]]. For USE2, see [[:REDIRECT (disambiguation)]].', result, true)
end

function suite:testUse2Skipped()
	local result = suite.runRedirect({'REDIRECT', 'USE1', 'PAGE1', '', 'PAGE2'},{1})
	self:assertStringContains('"REDIRECT" redirects here. For USE1, see [[:PAGE1]].', result, true)
end

function suite:testPage2Skipped()
	local result = suite.runRedirect({'REDIRECT', 'USE1', 'PAGE1', 'USE2', '', 'USE3'},{1})
	self:assertStringContains('"REDIRECT" redirects here. For USE1, see [[:PAGE1]]. For USE2, see [[:REDIRECT (disambiguation)]]. For USE3, see [[:REDIRECT (disambiguation)]].', result, true)
end

function suite:testUse3Skipped()
	local result = suite.runRedirect({'REDIRECT', 'USE1', 'PAGE1', 'USE2', 'PAGE2', '', 'PAGE3'},{1})
	self:assertStringContains('"REDIRECT" redirects here. For USE1, see [[:PAGE1]]. For USE2, see [[:PAGE2]].', result, true)
end

function suite:testMiddleUseSkipped()
	local result = suite.runRedirect({'REDIRECT', 'USE1', 'PAGE1', '', 'PAGE2', 'USE3', 'PAGE3'},{1})
	self:assertStringContains('"REDIRECT" redirects here. For USE1, see [[:PAGE1]].', result, true)
end

function suite:testMiddlePageSkipped()
	local result = suite.runRedirect({'REDIRECT', 'USE1', 'PAGE1', 'USE2', '', 'USE3', 'PAGE3'},{1})
	self:assertStringContains('"REDIRECT" redirects here. For USE1, see [[:PAGE1]]. For USE2, see [[:REDIRECT (disambiguation)]]. For USE3, see [[:PAGE3]].', result, true)
end

--------------------------------------------------------------------------------
-- Test other uses
--------------------------------------------------------------------------------

function suite:testUse2Skipped()
	local result = suite.runRedirect({'REDIRECT', 'USE1', 'PAGE1', '', 'PAGE2'},{1})
	self:assertStringContains('"REDIRECT" redirects here. For USE1, see [[:PAGE1]].', result, true)
end

function suite:testOtherUsesIsNotFinal()
	local result = suite.runRedirect({'REDIRECT', 'USE1', 'PAGE1', 'other uses', 'PAGE2', 'USE3', 'PAGE3'},{1})
	self:assertStringContains('"REDIRECT" redirects here. For USE1, see [[:PAGE1]]. For other uses, see [[:PAGE2]]. For USE3, see [[:PAGE3]].', result, true)
end

--------------------------------------------------------------------------------
-- Test options
--------------------------------------------------------------------------------

function suite:testSelfRef()
	local result = suite.runRedirect({'REDIRECT', selfref = 'yes'},{1})
	self:assertStringContains('class=".-selfref.-"', result, false)
end

--------------------------------------------------------------------------------
-- Test Lua interface
--------------------------------------------------------------------------------

function suite:assertError(...)
	local success, result = pcall(_redirect, ...)
	self:assertFalse(success)
end

function suite:testInvalidInput()
	self:assertError()
	self:assertError(9)
	self:assertError(true)
	self:assertError('REDIRECT', 'invalid')
	self:assertError('REDIRECT', 'invalid', {})
	self:assertError('REDIRECT', nil, 'invalid')
	self:assertError('REDIRECT', {}, 'invalid')
end

function suite:testLuaRedirectOnly()
	local result = _redirect({'REDIRECT'})
	self:assertStringContains('"REDIRECT" redirects here. For other uses, see [[:REDIRECT (disambiguation)]].', result, true)
end

function suite:testLuaPage1()
	local result = _redirect(
		{'REDIRECT', 'USE1', 'PAGE1'},
		1
	)
	self:assertStringContains('"REDIRECT" redirects here. For USE1, see [[:PAGE1]].', result, true)
end

function suite:testLuaPage3()
	local result = _redirect(
		{'REDIRECT', 'USE1', 'PAGE1', 'USE2', 'PAGE2', 'USE3', 'PAGE3'},
		1
	)
	self:assertStringContains('"REDIRECT" redirects here. For USE1, see [[:PAGE1]]. For USE2, see [[:PAGE2]]. For USE3, see [[:PAGE3]].', result, true)
end

function suite:testLuaMultiplePages()
	local result = _redirect(
		{'REDIRECT', 'USE1', 'PAGE1', 'and', 'PAGE2', 'and', 'PAGE3', 'USE2', 'PAGE4', 'and', 'PAGE5'},
		1
	)
	self:assertStringContains('"REDIRECT" redirects here. For USE1, see [[:PAGE1]], [[:PAGE2]], and [[:PAGE3]]. For USE2, see [[:PAGE4]] and [[:PAGE5]].', result, true)
end

function suite:testLuaSelfref()
	local result = _redirect({'REDIRECT'}, 1, {selfref = true})
	self:assertStringContains('class=".-selfref.-"', result, false)
end

--------------------------------------------------------------------------------
-- Test tracking category
--------------------------------------------------------------------------------

function suite.makeFakeTitleObject(page, vals)
	local title
	if page then
		title = mw.title.new(page)
	else
		title = mw.title.getCurrentTitle()
	end
	for k, v in pairs(vals or {}) do
		rawset(title, k, v)
	end
	return title
end

local d = {}

-- Categories
d.missingCat = 'Missing redirects'
d.invalidCat = 'Articles with redirect hatnotes needing review'

function suite:assertContainsTrackingCategory(category, result)
	category = string.format('[[Category:%s]]', category)
	self:assertStringContains(category, result, true)
end

function suite:assertNotContainsTrackingCategory(result)
	self:assertNotStringContains('%[%[Category:[^%]]+%]%]', result)
end

function suite:testTrackingCategoryNonMainspace()
	local currentTitle = suite.makeFakeTitleObject('Wikipedia:Namespaces')
	suite:assertNotContainsTrackingCategory(_redirect({'Example'}, nil, nil, currentTitle))
end

function suite:testTrackingCategoryExceptions()
	local currentTitle = suite.makeFakeTitleObject('Example')
	for _, s in ipairs{'REDIRECT', 'REDIRECT1', 'REDIRECT1678', 'TERM'} do
		self:assertNotContainsTrackingCategory(_redirect({s}, nil, nil, currentTitle))
	end
end

function suite:testTrackingCategoryInvalidTitle()
	local currentTitle = suite.makeFakeTitleObject('Example')
	self:assertContainsTrackingCategory(d.missingCat, _redirect({'Exam<>ple 2'}, nil, nil, currentTitle))
end

function suite:testTrackingCategoryNonexistent()
	local currentTitle = suite.makeFakeTitleObject('Example')
	local redirectTitle = suite.makeFakeTitleObject('Example 2', {exists = false, isRedirect = false})
	self:assertContainsTrackingCategory(d.missingCat, _redirect({redirectTitle.prefixedText}, nil, nil, currentTitle, redirectTitle))
end

function suite:testTrackingCategoryNotRedirect()
	local currentTitle = suite.makeFakeTitleObject('Example')
	local redirectTitle = suite.makeFakeTitleObject('Example 2', {exists = true, isRedirect = false, getContent = function ()
		return 'Not a redirect!'
	end})
	self:assertContainsTrackingCategory(d.invalidCat, _redirect({redirectTitle.prefixedText}, nil, nil, currentTitle, redirectTitle))
end

function suite:testTrackingCategoryRfDRedirect()
	local currentTitle = suite.makeFakeTitleObject('Example')
	local redirectTitle = suite.makeFakeTitleObject('Example 2', {exists = true, isRedirect = false, getContent = function ()
		return [====[
{{<includeonly>safesubst:</includeonly>#invoke:RfD||
|month = April
|day = 14
|year = 2021
|time = 15:27
|timestamp = 20210414152704
<!-- The above content is generated by {{subst:rfd}}. -->
<!-- End of RFD message. Don't edit anything above here, but feel free to edit below here. -->|content=
#REDIRECT [[Example]]
<!-- Don't add anything after this line unless you're drafting a disambiguation page or article to replace the redirect. -->
}}
	]====] end})
	self:assertNotContainsTrackingCategory(d.invalidCat, _redirect({redirectTitle.prefixedText}, nil, nil, currentTitle, redirectTitle))
end

function suite:testTrackingCategoryWrongTarget()
	local currentTitle = suite.makeFakeTitleObject('Example')
	local redirectTitle = suite.makeFakeTitleObject('Example 2', {exists = true, isRedirect = true, getContent = function ()
		return '#REDIRECT [[Example 3]]' -- This is to fool Module:Redirect.
	end})
	local targetTitle = suite.makeFakeTitleObject('Example 3')
	self:assertContainsTrackingCategory(d.invalidCat, _redirect({redirectTitle.prefixedText}, nil, nil, currentTitle, redirectTitle, targetTitle))
end

function suite:testTrackingCategoryCorrectTarget()
	local currentTitle = suite.makeFakeTitleObject('Example')
	local redirectTitle = suite.makeFakeTitleObject('Example 2', {exists = true, isRedirect = true, getContent = function ()
		return '#REDIRECT [[Example]]' -- This is to fool Module:Redirect.
	end})
	local targetTitle = suite.makeFakeTitleObject('Example')
	self:assertNotContainsTrackingCategory(_redirect({redirectTitle.prefixedText}, nil, nil, currentTitle, redirectTitle, targetTitle))
end

return suite
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