Editing Module:Timing/doc (section)

===Testing in a sandboxed environment===
If the module under test is sandboxed, that is under [[Special:MyPage/sandbox]], then the debugger is not directly available and we must put the testing inside the module itself. If we have a replacement module, then we add a requirement and a helper function

Sometimes it is better to put the wrapper in the module under inspection itself

<syntaxhighlight lang="lua">
local timing = require 'Module:Timing'

my_object = {};

my_object.hello = function( frame )
    local str = "Hi there World!"
    return str
end

my_object.TIMING = function (frame)
	return timing(my_object.hello)
end

return my_object 
</syntaxhighlight>

This can them be used in [[Special:TemplateSandbox]] with a prefix from [[Special:MyPage/sandbox]] and any "render page" we see fit for the purpose. Often we want a specific page though to get access to additional data like the Wikidata item. Fill inn an invoke-call for our helper function

<syntaxhighlight lang="wikitext">
{{#invoke|HelloWorld|TIMING}}
</syntaxhighlight>

and we will have a timing report for the helper call in the module.