通过grunt在实时服务器上运行量角器

Question

I am trying to run my portractor tests on live-server via one grunt task. I have installed live-server ( https://www.npmjs.com/package/live-server ) and grunt-execute. With grunt execute I managed to start live-server with a grunt command in 2 steps:

1st I created a node script (liveServer.js)

var liveServer = require("live-server");

var params = {
    port: 8080,
    host: "localhost",
    open: true,
    wait: 1000
};
liveServer.start(params);

2nd I created a task in my grunt file to start the script: (in grunt.initConfig)

execute: {
    liveserver: {
        src: ['liveServer.js']
    },
}

and registered a command to trigger it:

grunt.registerTask('live', [
    'execute:liveserver'
]);

Now if I run "grunt live" in my commandline live-server starts, opens a browser, and I can browse my application.

I also created a protractor task in my grunt file, which works just fine as well.
(in grunt.initConfig)

protractor: {
    options: {
        keepAlive: false,
        noColor: false
    },
    e2e: {
        options: {
            configFile: 'protractor.conf.js',
        }
    }
},

If I trigger it with a registered task the protractor tests run just fine, only I have to make sure live-server is running first. So ofcourse I want to combine the two in one command that starts live-server and then runs my protractor tests. So I tried:

grunt.registerTask('runProtractor', [
    'execute:liveserver',
    'protractor'
]);

But unfortunately this does not work, live-server starts and then ... nothing happens, the protractor tests aren't run. I tried changing some of the live-server parameters such as open and wait, but without any luck. There are no error messages either.

As I said before separately the tasks work both fine (with two command windows, first start live-server in one and then protractor in the other)

Does anybody have a clue why my does not continue after the live-server has started?

Answer 1

The execution of live-server blocks all subsequent tasks, since it doesn't "finish", ie to grunt the task is still running, which is why it won't proceed to the next task. You can use grunt-concurrent to run tasks in parallel.