问题
Running the tests via a web browser works fine, but using grunt gives me errors. I struggle to understand what I'm doing wrong here. grunt tests fails with
$ grunt tests
Running "jsonlint:sample" (jsonlint) task
>> 4 files lint free.
Running "jshint:all" (jshint) task
>> 4 files lint free.
Running "connect:server" (connect) task
Started connect web server on http://localhost:5000
Running "qunit:all" (qunit) task
Testing http://localhost:5000/tests/tests.html F
>> Settings.json tests - Fetching settings file
>> Message: InvalidStateError: DOM Exception 11: An attempt was made to use an object that is not, or is no longer, usable.
>> Actual: null
>> Expected: undefined
>> http://localhost:5000/tests/tests.js:7
>> Settings.json tests - Fetching settings file
>> Message: Check settings JSON file
>> http://localhost:5000/tests/tests.js:25:24
>> onreadystatechange@http://localhost:5000/tests/tests.js:8:25
>> Settings.json tests - Fetching settings file
>> Message: Assertion after the final `assert.async` was resolved
>> Actual: null
>> Expected: undefined
>> notEqual@http://localhost:5000/tests/qunit/qunit-1.22.0.js:1512:18
>> http://localhost:5000/tests/tests.js:25:24
>> onreadystatechange@http://localhost:5000/tests/tests.js:8:25
>> Settings.json tests - Fetching settings file
>> Message: Check settings JSON file
>> http://localhost:5000/tests/tests.js:25:24
>> onreadystatechange@http://localhost:5000/tests/tests.js:8:25
>> Settings.json tests - Fetching settings file
>> Message: Too many calls to the `assert.async` callback
>> Actual: null
>> Expected: undefined
>> http://localhost:5000/tests/tests.js:26:13
>> onreadystatechange@http://localhost:5000/tests/tests.js:8:25
>> Settings.json tests - Fetching settings file
>> Message: Assertion after the final `assert.async` was resolved
>> Actual: null
>> Expected: undefined
>> notEqual@http://localhost:5000/tests/qunit/qunit-1.22.0.js:1512:18
>> http://localhost:5000/tests/tests.js:25:24
>> onreadystatechange@http://localhost:5000/tests/tests.js:8:25
>> Settings.json tests - Fetching settings file
>> Message: Check settings JSON file
>> http://localhost:5000/tests/tests.js:25:24
>> onreadystatechange@http://localhost:5000/tests/tests.js:8:25
>> Settings.json tests - Fetching settings
>> Message: Too many calls to the `assert.async` callback
>> Actual: null
>> Expected: undefined
>> http://localhost:5000/tests/tests.js:26:13
>> onreadystatechange@http://localhost:5000/tests/tests.js:8:25
Warning: 8/8 assertions failed (54ms) Use --force to continue.
Aborted due to warnings.
Gruntfile.js
module.exports = function(grunt) {
grunt.initConfig({
jsonlint: {
sample: {
src: ['json/*.json', 'api_files/*.json'],
options: {
formatter: 'prose'
}
}
},
jshint: {
all: ['*.js', 'tests/*.js', 'server/*.js']
},
connect: {
server: {
options: {
port: 5000,
base: '.'
}
}
},
qunit: {
all: {
options: {
urls: [
'http://localhost:5000/tests/tests.html'
]
}
}
}
});
grunt.loadNpmTasks('grunt-jsonlint');
grunt.loadNpmTasks('grunt-contrib-jshint');
grunt.loadNpmTasks('grunt-contrib-connect');
grunt.loadNpmTasks('grunt-contrib-qunit');
grunt.registerTask('tests', ['jsonlint', 'jshint', 'connect', 'qunit']);
};
tests.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title>Backend Tests</title>
<link rel="stylesheet" href="qunit/qunit-1.22.0.css">
<script src="qunit/qunit-1.22.0.js"></script>
</head>
<body>
<div id="qunit"></div>
<div id="qunit-fixture"></div>
<script src="tests.js"></script>
</body>
</html>
tests.js
var HttpClient = function () {
this.get = function (requestUrl, callback) {
var anHttpRequest = new XMLHttpRequest();
anHttpRequest.onreadystatechange = function () {
if (anHttpRequest.readyState == 4 && anHttpRequest.status == 200) {
callback(anHttpRequest.responseText);
} else if (anHttpRequest.status == 404) {
callback(null);
}
};
anHttpRequest.open("GET", requestUrl, true);
anHttpRequest.send(null);
};
};
var rootUrl = "http://localhost:5000";
var client = new HttpClient();
QUnit.module("Fetching settings.json");
QUnit.test('Fetching settings file', function (assert) {
var done = assert.async();
client.get(rootUrl + '/api/settings', function (response) {
assert.notEqual(response, null, 'Check settings JSON file');
done();
});
});
main.js
function serveStaticFiles(router) {
var app = express();
app.use('/api', router); // all of our routes will be prefixed with /api
app.use('/', express.static(__dirname + '/')); // Makes it possible for html files to fetch images from img
app.use(express.static('./html')); // folder 'html' is now considered public and accessible
app.use(express.static('./xml')); // folder 'xml' is now considered public and accessible
app.use(express.static('./img')); // folder 'img' is now considered public and accessible
app.use(express.static('./json')); // folder 'json' is now considered public and accessible
app.use(express.static('./tests')); // folder 'tests' is now considered public and accessible
return app;
}
var bugsnag = require("bugsnag");
bugsnag.register(process.env.BUGSNAG_API_KEY);
bugsnag.releaseStage = process.env.BUGSNAG_RELEASE_STAGE;
bugsnag.notifyReleaseStages = ["stage", "production"];
var express = require('express');
var router = express.Router();
var app = serveStaticFiles(router);
var port = process.env.PORT || 5000;
var server = app.listen(port);
var apiHandler = require("./server/ApiHandler");
console.log("Application created and it listens on port " + port);
apiHandler.initRestApi(router);
回答1:
You'll need to run your Node server as another step in your grunt process. There is a grunt task for specifically running Express servers, I'd recommend starting there. Here's what the grunt config might look like:
grunt.initConfig({
// ...
express: { // this is the new task...
dev: {
options: {
script: 'path/to/main.js'
}
}
},
connect: {
server: {
options: {
port: 3000, // I changed this so it doesn't conflict with your express app
base: '.'
}
}
},
qunit: {
all: {
options: {
urls: [
'http://localhost:3000/tests/tests.html' // changed this as well
]
}
}
}
});
Then you'll want to run all three tasks as your "test" run. You can create an alias like so:
grunt.registerTask('tests', ['jsonlint', 'jshint', 'express', 'connect', 'qunit']);
来源：https://stackoverflow.com/questions/41490519/trouble-running-qunit-tests-with-static-server-using-grunt