Module:Template test case
This module provides a framework for making templates which produce a template test case. While test cases can be made manually, using Lua-based templates such as the ones provided by this module has the advantage that the template arguments only need to be input once, thus reducing the effort involved in making test cases and reducing the possibility of errors in the input.
Usage
editThis module should not usually be called directly. Instead, you should use Template:Test case
It is also possible to use a format of {{#invoke:template test case|main|parameters}}
. This uses the same defaults as Template:Test case; please see that page for documentation of the parameters.
There is no direct interface to this module for other Lua modules. Lua modules should generally use Lua-based test case modules such as Module:UnitTests or Module:ScribuntoUnit. If it is really necessary to use this module, you can use frame:expandTemplate with one of the templates listed above.
Configuration
editThis module has a configuration module at Module:Template test case/config. You can edit it to add new wrapper templates, or to change the messages that the module outputs.
--[[
A module for generating test case templates.
This module incorporates code from the English Wikipedia's "Testcase table"
module,[1] written by Frietjes [2] with contributions by Mr. Stradivarius [3]
and Jackmcbarn,[4] and the English Wikipedia's "Testcase rows" module,[5]
written by Mr. Stradivarius.
The "Testcase table" and "Testcase rows" modules are released under the
CC BY-SA 3.0 License [6] and the GFDL.[7]
License: CC BY-SA 3.0 and the GFDL
Author: Mr. Stradivarius
[1] https://en.wikipedia.org/wiki/Module:Testcase_table
[2] https://en.wikipedia.org/wiki/User:Frietjes
[3] https://en.wikipedia.org/wiki/User:Mr._Stradivarius
[4] https://en.wikipedia.org/wiki/User:Jackmcbarn
[5] https://en.wikipedia.org/wiki/Module:Testcase_rows
[6] https://en.wikipedia.org/wiki/Wikipedia:Text_of_Creative_Commons_Attribution-ShareAlike_3.0_Unported_License
[7] https://en.wikipedia.org/wiki/Wikipedia:Text_of_the_GNU_Free_Documentation_License
]]
-- Load required modules
local yesno = require('Module:Yesno')
-- Set constants
local DATA_MODULE = 'Module:Template test case/data'
-------------------------------------------------------------------------------
-- Shared methods
-------------------------------------------------------------------------------
local function message(self, key, ...)
-- This method is added to classes that need to deal with messages from the
-- config module.
local msg = self.cfg.msg[key]
if select(1, ...) then
return mw.message.newRawMessage(msg, ...):plain()
else
return msg
end
end
-------------------------------------------------------------------------------
-- Template class
-------------------------------------------------------------------------------
local Template = {}
Template.memoizedMethods = {
-- Names of methods to be memoized in each object. This table should only
-- hold methods with no parameters.
getFullPage = true,
getName = true,
makeHeader = true,
getOutput = true
}
function Template.new(invocationObj, options)
local obj = {}
-- Set input
for k, v in pairs(options or {}) do
if not Template[k] then
obj[k] = v
end
end
obj._invocation = invocationObj
-- Validate input
if not obj.template and not obj.title then
error('no template or title specified', 2)
end
-- Memoize expensive method calls
local memoFuncs = {}
return setmetatable(obj, {
__index = function (t, key)
if Template.memoizedMethods[key] then
local func = memoFuncs[key]
if not func then
local val = Template[key](t)
func = function () return val end
memoFuncs[key] = func
end
return func
else
return Template[key]
end
end
})
end
function Template:getFullPage()
if self.template then
local strippedTemplate, hasColon = self.template:gsub('^:', '', 1)
hasColon = hasColon > 0
local ns = strippedTemplate:match('^(.-):')
ns = ns and mw.site.namespaces[ns]
if ns then
return strippedTemplate
elseif hasColon then
return strippedTemplate -- Main namespace
else
return mw.site.namespaces[10].name .. ':' .. strippedTemplate
end
else
return self.title.prefixedText
end
end
function Template:getName()
if self.template then
return self.template
else
return require('Module:Template invocation').name(self.title)
end
end
function Template:makeLink(display)
if display then
return string.format('[[:%s|%s]]', self:getFullPage(), display)
else
return string.format('[[:%s]]', self:getFullPage())
end
end
function Template:makeBraceLink(display)
display = display or self:getName()
local link = self:makeLink(display)
return mw.text.nowiki('{{') .. link .. mw.text.nowiki('}}')
end
function Template:makeHeader()
return self.heading or self:makeBraceLink()
end
function Template:getInvocation(format)
local invocation = self._invocation:getInvocation{
template = self:getName(),
requireMagicWord = self.requireMagicWord,
}
if format == 'code' then
invocation = '<code>' .. mw.text.nowiki(invocation) .. '</code>'
elseif format == 'kbd' then
invocation = '<kbd>' .. mw.text.nowiki(invocation) .. '</kbd>'
elseif format == 'plain' then
invocation = mw.text.nowiki(invocation)
else
-- Default is pre tags
invocation = mw.text.encode(invocation, '&')
invocation = '<pre style="white-space: pre-wrap;">' .. invocation .. '</pre>'
invocation = mw.getCurrentFrame():preprocess(invocation)
end
return invocation
end
function Template:getOutput()
local protect = require('Module:Protect')
-- calling self._invocation:getOutput{...}
return protect(self._invocation.getOutput)(self._invocation, {
template = self:getName(),
requireMagicWord = self.requireMagicWord,
})
end
-------------------------------------------------------------------------------
-- TestCase class
-------------------------------------------------------------------------------
local TestCase = {}
TestCase.__index = TestCase
TestCase.message = message -- add the message method
TestCase.renderMethods = {
-- Keys in this table are values of the "format" option, values are the
-- method for rendering that format.
columns = 'renderColumns',
rows = 'renderRows',
tablerows = 'renderRows',
inline = 'renderInline',
cells = 'renderCells',
default = 'renderDefault'
}
function TestCase.new(invocationObj, options, cfg)
local obj = setmetatable({}, TestCase)
obj.cfg = cfg
-- Separate general options from template options. Template options are
-- numbered, whereas general options are not.
local generalOptions, templateOptions = {}, {}
for k, v in pairs(options) do
local prefix, num
if type(k) == 'string' then
prefix, num = k:match('^(.-)([1-9][0-9]*)$')
end
if prefix then
num = tonumber(num)
templateOptions[num] = templateOptions[num] or {}
templateOptions[num][prefix] = v
else
generalOptions[k] = v
end
end
-- Set general options
generalOptions.showcode = yesno(generalOptions.showcode)
generalOptions.showheader = yesno(generalOptions.showheader) ~= false
generalOptions.showcaption = yesno(generalOptions.showcaption) ~= false
generalOptions.collapsible = yesno(generalOptions.collapsible)
generalOptions.notcollapsed = yesno(generalOptions.notcollapsed)
generalOptions.wantdiff = yesno(generalOptions.wantdiff)
obj.options = generalOptions
-- Preprocess template args
for num, t in pairs(templateOptions) do
if t.showtemplate ~= nil then
t.showtemplate = yesno(t.showtemplate)
end
end
-- Set up first two template options tables, so that if only the
-- "template3" is specified it isn't made the first template when the
-- the table options array is compressed.
templateOptions[1] = templateOptions[1] or {}
templateOptions[2] = templateOptions[2] or {}
-- Allow the "template" option to override the "template1" option for
-- backwards compatibility with [[Module:Testcase table]].
if generalOptions.template then
templateOptions[1].template = generalOptions.template
end
-- Add default template options
if templateOptions[1].template and not templateOptions[2].template then
templateOptions[2].template = templateOptions[1].template ..
'/' .. obj.cfg.sandboxSubpage
end
if not templateOptions[1].template then
templateOptions[1].title = mw.title.getCurrentTitle().basePageTitle
end
if not templateOptions[2].template then
templateOptions[2].title = templateOptions[1].title:subPageTitle(
obj.cfg.sandboxSubpage
)
end
-- Remove template options for any templates where the showtemplate
-- argument is false. This prevents any output for that template.
for num, t in pairs(templateOptions) do
if t.showtemplate == false then
templateOptions[num] = nil
end
end
-- Check for missing template names.
for num, t in pairs(templateOptions) do
if not t.template and not t.title then
error(obj:message(
'missing-template-option-error',
num, num
), 2)
end
end
-- Compress templateOptions table so we can iterate over it with ipairs.
templateOptions = (function (t)
local nums = {}
for num in pairs(t) do
nums[#nums + 1] = num
end
table.sort(nums)
local ret = {}
for i, num in ipairs(nums) do
ret[i] = t[num]
end
return ret
end)(templateOptions)
-- Don't require the __TEMPLATENAME__ magic word for nowiki invocations if
-- there is only one template being output.
if #templateOptions <= 1 then
templateOptions[1].requireMagicWord = false
end
mw.logObject(templateOptions)
-- Make the template objects
obj.templates = {}
for i, options in ipairs(templateOptions) do
table.insert(obj.templates, Template.new(invocationObj, options))
end
-- Add tracking categories. At the moment we are only tracking templates
-- that use any "heading" parameters or an "output" parameter.
obj.categories = {}
for k, v in pairs(options) do
if type(k) == 'string' and k:find('heading') then
obj.categories['Test cases using heading parameters'] = true
elseif k == 'output' then
obj.categories['Test cases using output parameter'] = true
end
end
return obj
end
function TestCase:getTemplateOutput(templateObj)
local output = templateObj:getOutput()
if self.options.resetRefs then
mw.getCurrentFrame():extensionTag('references')
end
return output
end
function TestCase:templateOutputIsEqual()
-- Returns a boolean showing whether all of the template outputs are equal.
-- The random parts of strip markers (see [[Help:Strip markers]]) are
-- removed before comparison. This means a strip marker can contain anything
-- and still be treated as equal, but it solves the problem of otherwise
-- identical wikitext not returning as exactly equal.
local function normaliseOutput(obj)
local out = obj:getOutput()
-- Remove the random parts from strip markers.
out = out:gsub('(\127\'"`UNIQ.-)%-%x+%-(QINU`"\'\127)', '%1%2')
return out
end
local firstOutput = normaliseOutput(self.templates[1])
for i = 2, #self.templates do
local output = normaliseOutput(self.templates[i])
if output ~= firstOutput then
return false
end
end
return true
end
function TestCase:makeCollapsible(s)
local title = self.options.title or self.templates[1]:makeHeader()
if self.options.titlecode then
title = self.templates[1]:getInvocation('kbd')
end
local isEqual = self:templateOutputIsEqual()
local root = mw.html.create('table')
if self.options.wantdiff then
root
:addClass('mw-collapsible')
if self.options.notcollapsed == false then
root
:addClass('mw-collapsed')
end
root
:css('background-color', 'transparent')
:css('width', '100%')
:css('border', 'solid silver 1px')
:tag('tr')
:tag('th')
:css('background-color', isEqual and 'yellow' or '#90a8ee')
:wikitext(title)
:done()
:done()
:tag('tr')
:tag('td')
:newline()
:wikitext(s)
:newline()
else
root
:addClass('mw-collapsible')
if self.options.notcollapsed == false then
root
:addClass('mw-collapsed')
end
if self.options.notcollapsed ~= true or false then
root
:addClass(isEqual and 'mw-collapsed' or nil)
end
root
:css('background-color', 'transparent')
:css('width', '100%')
:css('border', 'solid silver 1px')
:tag('tr')
:tag('th')
:css('background-color', isEqual and 'lightgreen' or 'yellow')
:wikitext(title)
:done()
:done()
:tag('tr')
:tag('td')
:newline()
:wikitext(s)
:newline()
end
return tostring(root)
end
function TestCase:renderColumns()
local root = mw.html.create()
if self.options.showcode then
root
:wikitext(self.templates[1]:getInvocation())
:newline()
end
local tableroot = root:tag('table')
if self.options.showheader then
-- Caption
if self.options.showcaption then
tableroot
:addClass(self.options.class)
:cssText(self.options.style)
:tag('caption')
:wikitext(self.options.caption or self:message('columns-header'))
end
-- Headers
local headerRow = tableroot:tag('tr')
if self.options.rowheader then
-- rowheader is correct here. We need to add another th cell if
-- rowheader is set further down, even if heading0 is missing.
headerRow:tag('th'):wikitext(self.options.heading0)
end
local width
if #self.templates > 0 then
width = tostring(math.floor(100 / #self.templates)) .. '%'
else
width = '100%'
end
for i, obj in ipairs(self.templates) do
headerRow
:tag('th')
:css('width', width)
:wikitext(obj:makeHeader())
end
end
-- Row header
local dataRow = tableroot:tag('tr'):css('vertical-align', 'top')
if self.options.rowheader then
dataRow:tag('th')
:attr('scope', 'row')
:wikitext(self.options.rowheader)
end
-- Template output
for i, obj in ipairs(self.templates) do
if self.options.output == 'nowiki+' then
dataRow:tag('td')
:newline()
:wikitext(self.options.before)
:wikitext(self:getTemplateOutput(obj))
:wikitext(self.options.after)
:wikitext('<pre style="white-space: pre-wrap;">')
:wikitext(mw.text.nowiki(self.options.before or ""))
:wikitext(mw.text.nowiki(self:getTemplateOutput(obj)))
:wikitext(mw.text.nowiki(self.options.after or ""))
:wikitext('</pre>')
elseif self.options.output == 'nowiki' then
dataRow:tag('td')
:newline()
:wikitext(mw.text.nowiki(self.options.before or ""))
:wikitext(mw.text.nowiki(self:getTemplateOutput(obj)))
:wikitext(mw.text.nowiki(self.options.after or ""))
else
dataRow:tag('td')
:newline()
:wikitext(self.options.before)
:wikitext(self:getTemplateOutput(obj))
:wikitext(self.options.after)
end
end
return tostring(root)
end
function TestCase:renderRows()
local root = mw.html.create()
if self.options.showcode then
root
:wikitext(self.templates[1]:getInvocation())
:newline()
end
local tableroot = root:tag('table')
tableroot
:addClass(self.options.class)
:cssText(self.options.style)
if self.options.caption then
tableroot
:tag('caption')
:wikitext(self.options.caption)
end
for _, obj in ipairs(self.templates) do
local dataRow = tableroot:tag('tr')
-- Header
if self.options.showheader then
if self.options.format == 'tablerows' then
dataRow:tag('th')
:attr('scope', 'row')
:css('vertical-align', 'top')
:css('text-align', 'left')
:wikitext(obj:makeHeader())
dataRow:tag('td')
:css('vertical-align', 'top')
:css('padding', '0 1em')
:wikitext('→')
else
dataRow:tag('td')
:css('text-align', 'center')
:css('font-weight', 'bold')
:wikitext(obj:makeHeader())
dataRow = tableroot:tag('tr')
end
end
-- Template output
if self.options.output == 'nowiki+' then
dataRow:tag('td')
:newline()
:wikitext(self:getTemplateOutput(obj))
:wikitext('<pre style="white-space: pre-wrap;">')
:wikitext(mw.text.nowiki(self:getTemplateOutput(obj)))
:wikitext('</pre>')
elseif self.options.output == 'nowiki' then
dataRow:tag('td')
:newline()
:wikitext(mw.text.nowiki(self:getTemplateOutput(obj)))
else
dataRow:tag('td')
:newline()
:wikitext(self:getTemplateOutput(obj))
end
end
return tostring(root)
end
function TestCase:renderInline()
local arrow = mw.language.getContentLanguage():getArrow('forwards')
local ret = {}
for i, obj in ipairs(self.templates) do
local line = {}
line[#line + 1] = self.options.prefix or '* '
if self.options.showcode then
line[#line + 1] = obj:getInvocation('code')
line[#line + 1] = ' '
line[#line + 1] = arrow
line[#line + 1] = ' '
end
if self.options.output == 'nowiki+' then
line[#line + 1] = self:getTemplateOutput(obj)
line[#line + 1] = '<pre style="white-space: pre-wrap;">'
line[#line + 1] = mw.text.nowiki(self:getTemplateOutput(obj))
line[#line + 1] = '</pre>'
elseif self.options.output == 'nowiki' then
line[#line + 1] = mw.text.nowiki(self:getTemplateOutput(obj))
else
line[#line + 1] = self:getTemplateOutput(obj)
end
ret[#ret + 1] = table.concat(line)
end
if self.options.addline then
local line = {}
line[#line + 1] = self.options.prefix or '* '
line[#line + 1] = self.options.addline
ret[#ret + 1] = table.concat(line)
end
return table.concat(ret, '\n')
end
function TestCase:renderCells()
local root = mw.html.create()
local dataRow = root:tag('tr')
dataRow
:css('vertical-align', 'top')
:addClass(self.options.class)
:cssText(self.options.style)
-- Row header
if self.options.rowheader then
dataRow:tag('th')
:attr('scope', 'row')
:newline()
:wikitext(self.options.rowheader or self:message('row-header'))
end
-- Caption
if self.options.showcaption then
dataRow:tag('th')
:attr('scope', 'row')
:newline()
:wikitext(self.options.caption or self:message('columns-header'))
end
-- Show code
if self.options.showcode then
dataRow:tag('td')
:newline()
:wikitext(self:getInvocation('code'))
end
-- Template output
for i, obj in ipairs(self.templates) do
if self.options.output == 'nowiki+' then
dataRow:tag('td')
:newline()
:wikitext(self.options.before)
:wikitext(self:getTemplateOutput(obj))
:wikitext(self.options.after)
:wikitext('<pre style="white-space: pre-wrap;">')
:wikitext(mw.text.nowiki(self.options.before or ""))
:wikitext(mw.text.nowiki(self:getTemplateOutput(obj)))
:wikitext(mw.text.nowiki(self.options.after or ""))
:wikitext('</pre>')
elseif self.options.output == 'nowiki' then
dataRow:tag('td')
:newline()
:wikitext(mw.text.nowiki(self.options.before or ""))
:wikitext(mw.text.nowiki(self:getTemplateOutput(obj)))
:wikitext(mw.text.nowiki(self.options.after or ""))
else
dataRow:tag('td')
:newline()
:wikitext(self.options.before)
:wikitext(self:getTemplateOutput(obj))
:wikitext(self.options.after)
end
end
return tostring(root)
end
function TestCase:renderDefault()
local ret = {}
if self.options.showcode then
ret[#ret + 1] = self.templates[1]:getInvocation()
end
for i, obj in ipairs(self.templates) do
ret[#ret + 1] = '<div style="clear: both;"></div>'
if self.options.showheader then
ret[#ret + 1] = obj:makeHeader()
end
if self.options.output == 'nowiki+' then
ret[#ret + 1] = self:getTemplateOutput(obj) .. '<pre style="white-space: pre-wrap;">' .. mw.text.nowiki(self:getTemplateOutput(obj)) .. '</pre>'
elseif self.options.output == 'nowiki' then
ret[#ret + 1] = mw.text.nowiki(self:getTemplateOutput(obj))
else
ret[#ret + 1] = self:getTemplateOutput(obj)
end
end
return table.concat(ret, '\n\n')
end
function TestCase:__tostring()
local format = self.options.format
local method = format and TestCase.renderMethods[format] or 'renderDefault'
local ret = self[method](self)
if self.options.collapsible then
ret = self:makeCollapsible(ret)
end
for cat in pairs(self.categories) do
ret = ret .. string.format('[[Category:%s]]', cat)
end
return ret
end
-------------------------------------------------------------------------------
-- Nowiki invocation class
-------------------------------------------------------------------------------
local NowikiInvocation = {}
NowikiInvocation.__index = NowikiInvocation
NowikiInvocation.message = message -- Add the message method
function NowikiInvocation.new(invocation, cfg)
local obj = setmetatable({}, NowikiInvocation)
obj.cfg = cfg
invocation = mw.text.unstrip(invocation)
-- Decode HTML entities for <, >, and ". This means that HTML entities in
-- the original code must be escaped as e.g. &lt;, which is unfortunate,
-- but it is the best we can do as the distinction between <, >, " and <,
-- >, " is lost during the original nowiki operation.
invocation = invocation:gsub('<', '<')
invocation = invocation:gsub('>', '>')
invocation = invocation:gsub('"', '"')
obj.invocation = invocation
return obj
end
function NowikiInvocation:getInvocation(options)
local template = options.template:gsub('%%', '%%%%') -- Escape "%" with "%%"
local invocation, count = self.invocation:gsub(
self.cfg.templateNameMagicWordPattern,
template
)
if options.requireMagicWord ~= false and count < 1 then
error(self:message(
'nowiki-magic-word-error',
self.cfg.templateNameMagicWord
))
end
return invocation
end
function NowikiInvocation:getOutput(options)
local invocation = self:getInvocation(options)
return mw.getCurrentFrame():preprocess(invocation)
end
-------------------------------------------------------------------------------
-- Table invocation class
-------------------------------------------------------------------------------
local TableInvocation = {}
TableInvocation.__index = TableInvocation
TableInvocation.message = message -- Add the message method
function TableInvocation.new(invokeArgs, nowikiCode, cfg)
local obj = setmetatable({}, TableInvocation)
obj.cfg = cfg
obj.invokeArgs = invokeArgs
obj.code = nowikiCode
return obj
end
function TableInvocation:getInvocation(options)
if self.code then
local nowikiObj = NowikiInvocation.new(self.code, self.cfg)
return nowikiObj:getInvocation(options)
else
return require('Module:Template invocation').invocation(
options.template,
self.invokeArgs
)
end
end
function TableInvocation:getOutput(options)
return mw.getCurrentFrame():expandTemplate{
title = options.template,
args = self.invokeArgs
}
end
-------------------------------------------------------------------------------
-- Bridge functions
--
-- These functions translate template arguments into forms that can be accepted
-- by the different classes, and return the results.
-------------------------------------------------------------------------------
local bridge = {}
function bridge.table(args, cfg)
cfg = cfg or mw.loadData(DATA_MODULE)
local options, invokeArgs = {}, {}
for k, v in pairs(args) do
local optionKey = type(k) == 'string' and k:match('^_(.*)$')
if optionKey then
if type(v) == 'string' then
v = v:match('^%s*(.-)%s*$') -- trim whitespace
end
if v ~= '' then
options[optionKey] = v
end
else
invokeArgs[k] = v
end
end
-- Allow passing a nowiki invocation as an option. While this means users
-- have to pass in the code twice, whitespace is preserved and < etc.
-- will work as intended.
local nowikiCode = options.code
options.code = nil
local invocationObj = TableInvocation.new(invokeArgs, nowikiCode, cfg)
local testCaseObj = TestCase.new(invocationObj, options, cfg)
return tostring(testCaseObj)
end
function bridge.nowiki(args, cfg)
cfg = cfg or mw.loadData(DATA_MODULE)
local code = args.code or args[1]
local invocationObj = NowikiInvocation.new(code, cfg)
args.code = nil
args[1] = nil
-- Assume we want to see the code as we already passed it in.
args.showcode = args.showcode or true
local testCaseObj = TestCase.new(invocationObj, args, cfg)
return tostring(testCaseObj)
end
-------------------------------------------------------------------------------
-- Exports
-------------------------------------------------------------------------------
local p = {}
function p.main(frame, cfg)
cfg = cfg or mw.loadData(DATA_MODULE)
-- Load the wrapper config, if any.
local wrapperConfig
if frame.getParent then
local title = frame:getParent():getTitle()
local template = title:gsub(cfg.sandboxSubpagePattern, '')
wrapperConfig = cfg.wrappers[template]
end
-- Work out the function we will call, use it to generate the config for
-- Module:Arguments, and use Module:Arguments to find the arguments passed
-- by the user.
local func = wrapperConfig and wrapperConfig.func or 'table'
local userArgs = require('Module:Arguments').getArgs(frame, {
parentOnly = wrapperConfig,
frameOnly = not wrapperConfig,
trim = func ~= 'table',
removeBlanks = func ~= 'table'
})
-- Get default args and build the args table. User-specified args overwrite
-- default args.
local defaultArgs = wrapperConfig and wrapperConfig.args or {}
local args = {}
for k, v in pairs(defaultArgs) do
args[k] = v
end
for k, v in pairs(userArgs) do
args[k] = v
end
return bridge[func](args, cfg)
end
function p._exportClasses() -- For testing
return {
Template = Template,
TestCase = TestCase,
NowikiInvocation = NowikiInvocation,
TableInvocation = TableInvocation
}
end
return p