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Modul:UnitTests/doc

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UnitTests provides a unit test facility that can be used by other scripts using require. See Wikipedia:Lua#Unit_testing for details. The following is a sample from Module:Example/testcases:

-- Unit tests for [[Module:Example]]. Click talk page to run tests.
local p = require('Module:UnitTests')

function p:test_hello()
    self:preprocess_equals('<strong class="error"><span class="scribunto-error mw-scribunto-error-a6aa6427">Ralat skrip: Modul &quot;Example&quot; tidak wujud.</span></strong>', 'Hello World!')
end

return p

The talk page Module talk:Example/testcases executes it with {{#invoke: Example/testcases | run_tests}}. Test methods like test_hello above must begin with "test".

Methods

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run_tests

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  • run_tests: Runs all tests. Normally used on talk page of unit tests.
    {{#invoke:Example/testcases|run_tests}}
    
  • If differs_at is specified, a column will be added showing the first character position where the expected and actual results differ.
    {{#invoke:Example/testcases|run_tests|differs_at=1}}
    
  • If highlight is specified, failed tests will be highlighted to make them easier to spot. A user script that moves failed tests to the top is also available.
    {{#invoke:Example/testcases|run_tests|highlight=1}}
    
  • If live_sandbox is specified, the header will show the columns "Test", "Live", "Sandbox", "Expected". This is required when using the preprocess_equals_sandbox_many method.

preprocess_equals

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  • preprocess_equals(text, expected, options): 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:Example | hello}}', 'Hello, world!', {nowiki=1})
    

preprocess_equals_many

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  • preprocess_equals_many(prefix, suffix, cases, options): Performs a series of preprocess_equals() calls on a set of given pairs. Automatically adds the given prefix and suffix to each text.
    self:preprocess_equals_many('{{#invoke:Example | hello_to |', '}}', {
        {'John', 'Hello, John!'},
        {'Jane', 'Hello, Jane!'},
    }, {nowiki=1})
    

preprocess_equals_preprocess

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  • preprocess_equals_preprocess(text, expected, options): 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:Example | hello}}', '{{Hello}}', {nowiki=1})
    

preprocess_equals_preprocess_many

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  • preprocess_equals_preprocess_many(prefix1, suffix1, prefix2, suffix2, cases, options): Performs a series of preprocess_equals_preprocess() calls on a set of given pairs. The prefix/suffix supplied for both arguments is added automatically. If in any case the second part is not specified, the first part will be used.
    self:preprocess_equals_preprocess_many('{{#invoke:ConvertNumeric | numeral_to_english|', '}}', '{{spellnum', '}}', {
        {'2'}, -- equivalent to {'2','2'},
        {'-2', '-2.0'},
    }, {nowiki=1})
    

preprocess_equals_sandbox_many

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  • preprocess_equals_sandbox_many(module, function, cases, options): Performs a series of preprocess_equals_compare() calls on a set of given pairs. The test compares the live version of the module vs the /sandbox version and vs an expected result. Ensure live_sandbox is specified or there may be some errors in the output.
    self:preprocess_equals_sandbox_many('{{#invoke:Example', 'hello_to', {
        {'John', 'Hello, John!'},
        {'Jane', 'Hello, Jane!'},
    }, {nowiki=1})
    
  • equals(name, actual, expected, options): Gives a computed value and the expected value, and checks if they are equal according to the == operator. Useful for testing modules that are designed to be used by other modules rather than using #invoke.
    self:equals('Simple addition', 2 + 2, 4, {nowiki=1})
    

equals_deep

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  • equals_deep(name, actual, expected, options): Like equals, but handles tables by doing a deep comparison. Neither value should contain circular references, as they are not handled by the current implementation and may result in an infinite loop.
    self:equals_deep('Table comparison', createRange(1,3), {1,2,3}, {nowiki=1})
    

Test options

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These are the valid options that can be passed into the options parameters of the test functions listed above.

Enabling this wraps the output text in <nowiki>...</nowiki> tags to avoid the text being rendered (E.g. <span>[[Example|Page]]</span> instead of Page)

combined

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Enabling this will display the output text in both the rendered mode and the nowiki mode to allow for both a raw text and visual comparison.

templatestyles

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Enabling this fixes the IDs in the strip markers <templatestyles>...</templatestyles> produces when processed to avoid incorrectly failing the tests.

stripmarker

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Enabling this fixes the IDs in all strip markers produces when processed to avoid incorrectly failing the tests.

display

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An optional function that changes how the output from the tests are displayed. This doesn't effect the comparison process.

See also

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