UnitTests provides a unit test facility that can be used by other scripts using require. See Wikipedia:Lua#Unit_testing for details. Following is a sample from Module:Bananas/tests:
-- Unit tests for [[Module:Bananas]]. Click talk page to run tests.
local p = require('Module:UnitTests')
function p:test_hello()
self:preprocess_equals('{{#invoke:Bananas | hello}}', 'Hello, world!')
end
return p
The talk page Module talk:Bananas/tests executes it with {{#invoke: Bananas/tests | run_tests}}. Test methods like test_hello above must begin with "test".
Methods
- preprocess_equals(text, expected): Gives a piece of wikitext to preprocess and an expected resulting value. Scripts and templates can be invoked in the same manner they would be in a page.
self:preprocess_equals('{{#invoke:Bananas | hello}}', 'Hello, world!')
- preprocess_equals_preprocess(text, expected): Gives two pieces of wikitext to preprocess and determines if they produce the same value. Useful for comparing scripts to existing templates.
self:preprocess_equals_preprocess('{{#invoke:Bananas | hello}}', '{{Hello}}')