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Port of QUnit unit testing framework to nodejs
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readme.md

This is a port of QUnit unit testing framework to nodejs

http://github.com/jquery/qunit

Features

  • the simplest API of the world :)
  • 100% identical API for client and node (passing all unit tests from QUnit)
  • simple asynchronous testing
  • tests inside of one testfile run synchronous, but every testfile runs async
  • tests from each file run in its own spawned node instance
  • usage via CLI or testrunner
  • uses the assert module
  • test coverage via http://siliconforks.com/jscoverage

Installation

Using Node Package Manager:

npm install qunit

From git:

git clone https://github.com/kof/node-qunit.git
git submodule init
git submodule update

API

http://docs.jquery.com/QUnit

Setup

// Add a test to run.
test( name, expected, test )

// Add an asynchronous test to run. The test must include a call to start().
asyncTest( name, expected, test )

// Specify how many assertions are expected to run within a test.
expect( amount );

// Separate tests into modules.
module( name, lifecycle )

Assertions

// A boolean assertion, equivalent to JUnit's assertTrue. Passes if the first argument is truthy.
ok( state, message )

// A comparison assertion, equivalent to JUnit's assertEquals. Uses "==".
equals( actual, expected, message )

// A comparison assertion. Uses "===".
strictEqual( actual, expected, message )

// A deep recursive comparison assertion, working on primitive types, arrays and objects.
same( actual, expected, message )

// Assertion to test if a callback throws an exception when run.
raises( actual, message )

Asynchronous Testing

// Start running tests again after the testrunner was stopped.
start()

// Stop the testrunner to wait to async tests to run. Call start() to continue.
stop( timeout )

Usage

Command line

Some usage examples, read full cli api doc using "--help":

$ qunit -h

$ qunit -c ./code.js -t ./tests.js

$ qunit -c ./code.js -t ./tests.js -p /path/for/require /path1/for/require --cov false

By default, code and dependencies are added to the global scope. To specify requiring them into a namespace object, prefix the path or module name with the variable name to be used for the namespace object, followed by a colon:

$ qunit -c code:./code.js -d utils:utilmodule -r ./time.js

via api

var testrunner = require( "qunit" );

Defaults:

{
    errorsOnly: false, // set it to true if you want to report only errors
    errorStack: true, // set it to false if you want to get error stack in report
    summary: true, // print a summary about all tested stuff after finish
    coverage: true, // display coverage
    paths: null // add paths to require of test environment
}

// to change any option - change it :)

testrunner.options.optionName = value;

// one code and tests file
testrunner.run({
    code: "/path/to/your/code.js",
    tests: "/path/to/your/tests.js"
});

// require code into a namespace object, rather than globally
testrunner.run({
    code: {path: "/path/to/your/code.js", namespace: "code"},
    tests: "/path/to/your/tests.js"
});

// one code and multiple tests file
testrunner.run({
    code: "/path/to/your/code.js",
    tests: ["/path/to/your/tests.js", "/path/to/your/tests1.js"]
});

// array of code and test files
testrunner.run([
    {
        code: "/path/to/your/code.js",
        tests: "/path/to/your/tests.js"
    },
    {
        code: "/path/to/your/code.js",
        tests: "/path/to/your/tests.js"
    }
]);

// using testrunner callback
testrunner.run({
    code: "/path/to/your/code.js",
    tests: "/path/to/your/tests.js"
}, function( report ) {
    console.dir(report);
});

// specify dependency
testrunner.run({
    deps: "/path/to/your/dependency.js",
    code: "/path/to/your/code.js",
    tests: "/path/to/your/tests.js"
});

// dependencies can be modules or files
testrunner.run({
    deps: "modulename",
    code: "/path/to/your/code.js",
    tests: "/path/to/your/tests.js"
});

// dependencies can required into a namespace object
testrunner.run({
    deps: {path: "utilmodule", namespace: "utils"},
    code: "/path/to/your/code.js",
    tests: "/path/to/your/tests.js"
});

// specify multiple dependencies
testrunner.run({
    deps: ["/path/to/your/dependency1.js", "/path/to/your/dependency2.js"],
    code: "/path/to/your/code.js",
    tests: "/path/to/your/tests.js"
});

Debbugging

Use stderr if you want to debug something while running via qunit. console.error("This will not brake qunit report"); // or require("util").debug("This will not brake qunit report");

Writing tests

QUnit API and code which have to be tested are already loaded and attached to the global context.

Because nodejs modules reserved "module" namespace we have to redefine it from QUnit namespace.

module = QUnit.module;

Basically QUnit API can ba accessed directly from global object or optional via "QUnit" object.

QUnit.test;

Some tests examples

test("a basic test example", function() {
  ok( true, "this test is fine" );
  var value = "hello";
  equals( "hello", value, "We expect value to be hello" );
});

module("Module A");

test("first test within module", 1, function() {
  ok( true, "all pass" );
});

test("second test within module", 2, function() {
  ok( true, "all pass" );
});

module("Module B", {
    setup: function() {
        // do some initial stuff before every test for this module
    },
    teardown: function() {
        // do some stuff after every test for this module
    }
});

test("some other test", function() {
  expect(2);
  equals( true, false, "failing test" );
  equals( true, true, "passing test" );
});

module("Module C", {
    setup: function() {
        // setup a shared environment for each test
        this.options = {test: 123};
    }
});

test("this test is using shared environment", 1, function() {
  same( {test:123}, this.options, "passing test" );
});

asyncTest("this is an async test example", 2, function() {
    setTimeout(function() {
        ok(true, "finished async test");
        strictEqual( true, true, "Strict equal assertion uses ===" );
        start();
    }, 100);
});

Run tests

$ make test

JSCoverage

Using JSCoverage 0.3.1 (from the ubuntu universe repositories) resulted in a "jscoverage: unknown file type" error. Updating to the JSCoverage 0.5.1 from http://siliconforks.com/jscoverage/ resolves this issue.

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