Module:ScribuntoUnit/doc

This module provides unit tests for other Lua modules. To test a module, you must create a separate test module, usually located at Module:Module name/testcases. The module is tested with the ScribuntoUnit module, which verifies that the operations defined in the test module produce the expected results.

Test module structure

To make a test module (test suite), start with the following code:

local myModule = require('Module:MyModule') -- the module to be tested
local ScribuntoUnit = require('Module:ScribuntoUnit')
local suite = ScribuntoUnit:new()

After you have done this you can add individual test functions to the suite object. Any function that begins with test is treated as a test. (Other functions will be ignored by ScribuntoUnit, but can be used in the tests themselves.)

function suite:testSomeCall()
    self:assertEquals('expected value', myModule.someCall(123))
    self:assertEquals('other expected value', myModule.someCall(456))
end

function suite:testSomeOtherCall()
    self:assertEquals('expected value', myModule.someOtherCall(123))
    self:assertEquals('other expected value', myModule.someOtherCall(456))
end

The tests you write should make assertions, and ScribuntoUnit will check whether those assertions are true. For example, assertEquals checks that both of the arguments it is given are equal. If ScribuntoUnit doesn't find an assertion to be true, then the test will fail and an error message will be generated. The error message will show which assertion failed verification (other checks on the assertions are not made at this time).

Running the tests

The tests can be run in two ways: through the Lua debug console, and from a wiki page using #invoke. If you are running the tests through the debug console, use the code require('Module:MyModule/tests').run(). If you are running them from a wiki page, use the code {{#invoke:MyModule/tests|run}}. This will generate a table containing the results. It is also possible to display a more compact table by using the code {{#invoke:MyModule/tests|run|displayMode=short}}.

Tests

Error messages

The last parameter of all the test methods is an message that is displayed if validation fails.

self:assertEquals('expected value', myModule.someCall(123), 'This fails if "foo" is set to "bar".')

assertTrue, assertFalse

These test whether the assertion evaluates to true or false. Note that in Lua false and nil evaluate to false, and everything else evaluates to true.

self:assertTrue(2 + 2 == 4)
self:assertTrue('foo')
self:assertFalse(2 + 2 == 5)
self:assertFalse(nil)

assertEquals

This tests whether the first parameter is equal to the second parameter.

self:assertEquals(4, calculator.add(2, 2))

assertDeepEquals

This tests whether the first parameter is equal to the second parameter. If the parameters are tables, they are compared recursively, and their __eq metamethods are respected.

self:assertDeepEquals(table1, table2)

assertTemplateEquals

Egy sablonhívás eredményét vizsgálja.

self:assertTemplateEquals(4, 'add', {2, 2}) -- akkor igaz, ha {{add|2|2}} értéke 4

assertResultEquals

Tetszőleges wikikód (tipikusan egy modulhívás) kimenetét vizsgálja.

self:assertResultEquals(4, '{{#invoke:Calculator|add|2|2}}')

assertSameResult

Két wikikód kimenetét hasonlítja össze; hasznos lehet egy sablon lecserélésénél annak ellenőrzésére, hogy az új sablon ugyanúgy viselkedik-e.

self:assertSameResult('{{add|2|2}}', '{{#invoke:Calculator|add|2|2}}')