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271 lines
8.3 KiB
271 lines
8.3 KiB
5 years ago
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/*
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* Jake JavaScript build tool
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* Copyright 2112 Matthew Eernisse (mde@fleegix.org)
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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let path = require('path');
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let currDir = process.cwd();
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/**
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@name jake
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@namespace jake
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*/
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/**
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@name jake.TestTask
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@constructor
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@description Instantiating a TestTask creates a number of Jake
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Tasks that make running tests for your software easy.
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@param {String} name The name of the project
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@param {Function} definition Defines the list of files containing the tests,
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and the name of the namespace/task for running them. Will be executed on the
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instantiated TestTask (i.e., 'this', will be the TestTask instance), to set
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the various instance-propertiess.
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@example
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let t = new jake.TestTask('bij-js', function () {
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this.testName = 'testSpecial';
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this.testFiles.include('test/**');
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});
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*/
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let TestTask = function () {
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let self = this;
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let args = Array.prototype.slice.call(arguments);
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let name = args.shift();
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let definition = args.pop();
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let prereqs = args.pop() || [];
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/**
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@name jake.TestTask#testNam
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@public
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@type {String}
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@description The name of the namespace to place the tests in, and
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the top-level task for running tests. Defaults to "test"
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*/
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this.testName = 'test';
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/**
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@name jake.TestTask#testFiles
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@public
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@type {jake.FileList}
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@description The list of files containing tests to load
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*/
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this.testFiles = new jake.FileList();
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/**
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@name jake.TestTask#showDescription
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@public
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@type {Boolean}
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@description Show the created task when doing Jake -T
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*/
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this.showDescription = true;
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/*
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@name jake.TestTask#totalTests
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@public
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@type {Number}
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@description The total number of tests to run
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*/
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this.totalTests = 0;
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/*
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@name jake.TestTask#executedTests
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@public
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@type {Number}
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@description The number of tests successfully run
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*/
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this.executedTests = 0;
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if (typeof definition == 'function') {
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definition.call(this);
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}
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if (this.showDescription) {
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desc('Run the tests for ' + name);
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}
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task(this.testName, prereqs, {async: true}, function () {
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let t = jake.Task[this.fullName + ':run'];
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t.on('complete', function () {
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complete();
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});
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// Pass args to the namespaced test
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t.invoke.apply(t, arguments);
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});
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namespace(self.testName, function () {
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let runTask = task('run', {async: true}, function (pat) {
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let re;
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let testFiles;
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// Don't nest; make a top-level namespace. Don't want
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// re-calling from inside to nest infinitely
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jake.currentNamespace = jake.defaultNamespace;
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re = new RegExp(pat);
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// Get test files that match the passed-in pattern
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testFiles = self.testFiles.toArray()
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.filter(function (f) {
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return (re).test(f);
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}) // Don't load the same file multiple times -- should this be in FileList?
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.reduce(function (p, c) {
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if (p.indexOf(c) < 0) {
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p.push(c);
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}
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return p;
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}, []);
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// Create a namespace for all the testing tasks to live in
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namespace(self.testName + 'Exec', function () {
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// Each test will be a prereq for the dummy top-level task
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let prereqs = [];
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// Continuation to pass to the async tests, wrapping `continune`
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let next = function () {
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complete();
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};
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// Create the task for this test-function
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let createTask = function (name, action) {
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// If the test-function is defined with a continuation
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// param, flag the task as async
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let t;
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let isAsync = !!action.length;
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// Define the actual namespaced task with the name, the
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// wrapped action, and the correc async-flag
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t = task(name, createAction(name, action), {
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async: isAsync
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});
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t.once('complete', function () {
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self.executedTests++;
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});
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t._internal = true;
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return t;
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};
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// Used as the action for the defined task for each test.
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let createAction = function (n, a) {
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// A wrapped function that passes in the `next` function
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// for any tasks that run asynchronously
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return function () {
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let cb;
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if (a.length) {
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cb = next;
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}
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if (!(n == 'before' || n == 'after' ||
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/_beforeEach$/.test(n) || /_afterEach$/.test(n))) {
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jake.logger.log(n);
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}
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// 'this' will be the task when action is run
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return a.call(this, cb);
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};
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};
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// Dummy top-level task for everything to be prereqs for
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let topLevel;
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// Pull in each test-file, and iterate over any exported
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// test-functions. Register each test-function as a prereq task
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testFiles.forEach(function (file) {
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let exp = require(path.join(currDir, file));
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// Create a namespace for each filename, so test-name collisions
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// won't be a problem
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namespace(file, function () {
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let testPrefix = self.testName + 'Exec:' + file + ':';
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let testName;
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// Dummy task for displaying file banner
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testName = '*** Running ' + file + ' ***';
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prereqs.push(testPrefix + testName);
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createTask(testName, function () {});
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// 'before' setup
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if (typeof exp.before == 'function') {
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prereqs.push(testPrefix + 'before');
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// Create the task
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createTask('before', exp.before);
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}
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// Walk each exported function, and create a task for each
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for (let p in exp) {
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if (p == 'before' || p == 'after' ||
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p == 'beforeEach' || p == 'afterEach') {
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continue;
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}
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if (typeof exp.beforeEach == 'function') {
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prereqs.push(testPrefix + p + '_beforeEach');
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// Create the task
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createTask(p + '_beforeEach', exp.beforeEach);
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}
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// Add the namespace:name of this test to the list of prereqs
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// for the dummy top-level task
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prereqs.push(testPrefix + p);
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// Create the task
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createTask(p, exp[p]);
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if (typeof exp.afterEach == 'function') {
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prereqs.push(testPrefix + p + '_afterEach');
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// Create the task
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createTask(p + '_afterEach', exp.afterEach);
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}
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}
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// 'after' teardown
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if (typeof exp.after == 'function') {
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prereqs.push(testPrefix + 'after');
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// Create the task
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let afterTask = createTask('after', exp.after);
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afterTask._internal = true;
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}
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});
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});
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self.totalTests = prereqs.length;
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process.on('exit', function () {
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// Throw in the case where the process exits without
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// finishing tests, but no error was thrown
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if (!jake.errorCode && (self.totalTests > self.executedTests)) {
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throw new Error('Process exited without all tests completing.');
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}
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});
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// Create the dummy top-level task. When calling a task internally
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// with `invoke` that is async (or has async prereqs), have to listen
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// for the 'complete' event to know when it's done
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topLevel = task('__top__', prereqs);
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topLevel._internal = true;
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topLevel.addListener('complete', function () {
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jake.logger.log('All tests ran successfully');
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complete();
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});
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topLevel.invoke(); // Do the thing!
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});
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});
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runTask._internal = true;
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});
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};
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jake.TestTask = TestTask;
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exports.TestTask = TestTask;
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