grunt-jsdoc/test/jsdoc-plugin_test.js

/**
 * @fileoverview NodeUnit test
 * @copyright Bertrand Chevrier 2012
 * @author Bertrand Chevrier <chevrier.bertrand@gmail.com>
 * @license MIT
 *
 * @module test/jsdoc-plugin_test
 */

/**
 * This function enables you to extract
 * the declared arguments from a function.
 * @param {Function} fn - the function to extract the arguments for
 * @returns {Array} the list of arguments
 * @throw {Error} in case of wrong argument given
 */
var extractArgs = function(fn) {
    'use strict';

    if (typeof fn !== 'function') {
        throw new Error('TypeError : The extractArgs function requires the fn argument to be a function!');
    }
    return fn.toString().match(/function\s+\w*\s*\((.*?)\)/)[1].split(/\s*,\s*/);
};

/**
 * NodeUnit group of test that check the jsdoc Grunt task.
 *
 * @see https://github.com/caolan/nodeunit/
 *
 * @class JsdocTest
 */
exports.JsdocTest = {

    /**
     * Set up the test by load the tasks/jsdoc-plugin module
     * @memberOf JsdocTest
     * @param {Function} done - to call once the setup is done.
     */
    setUp: function(done) {
        'use strict';

        this.jsdocTask = require('../tasks/jsdoc-plugin');
        done();
    },

    /**
     * Check the task is loaded and complies with the grunt requirements.
     * @memberOf JsdocTest
     * @param {Object} test - the node unit test context
     */
    'taskCheck': function(test) {
        'use strict';

        test.notStrictEqual(this.jsdocTask, undefined, 'the jsdoc task should be set up');
        test.equal(typeof this.jsdocTask, 'function', 'the task must be a function');

        var taskArgs = extractArgs(this.jsdocTask);
        test.ok(taskArgs.length > 0 && taskArgs[0] === 'grunt', 'the task must declare the grunt context as 1st parameter');

        test.done();
    },

    /**
     * Do some check on the exec library
     * @memberOf JsdocTest
     * @param {Object} test - the node unit test context
     */
    'execCheck': function(test) {
        'use strict';

        var exec = require('../tasks/lib/exec');

        test.notStrictEqual(exec, undefined, 'the exec lib should be required');
        test.equal(typeof exec, 'object', 'exec is an object');

        test.equal(typeof exec.buildSpawned, 'function', 'exec must have a buildSpawned method');
        test.equal(typeof exec.lookup, 'function', 'exec must have a lookup method');

        test.done();
    }
};