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