Execution order

[Ilya Shaisultanov]

I'm curious about how Mocha runs tests.

Are "describe"s serial? What about sync/async "it"s?

[vision media [ Tj Holowaychuk ]]

everything is run in sequence as mocha traverses the describe "tree"

On Fri, Mar 22, 2013 at 7:46 AM, Ilya Shaisultanov <ilya.sha...@gmail.com> wrote:

I'm curious about how Mocha runs tests.

Are "describe"s serial? What about sync/async "it"s?

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[Gregory Langlais]

Run this with mocha for an example of execution order:

describe('first', function() {

  console.log('>> first describe (parent)');

  before(function(done) {

    console.log('>> first describe before');

    setTimeout(function() {

      console.log('>> first describe before done (async)');

      done();

    }, 5);

  });

  describe('second', function() {

    console.log('>> second describe');

    console.log('>>> second describe random code WITHOUT before statement');

    it('', function(done) {

      setTimeout(function() {

        console.log('>> second describe it done (async)');

        done();

      }, 5);

    });

  });

  describe('third', function() {

    console.log('>> third describe');

    before(function(done) {

      console.log('>>> third describe random code WITH before statement');

      done();

    });

    it('', function(done) {

      console.log('>> third describe it done (sync)');

      done();

    });

  });

});

[Alberto Maldonado]

I don't really understand "mocha traverses the describe "tree". What does it mean?

I'm doing some test: creation user, some other stuff with this user and deletion of that user.

I ended in windows renaming files 1_create.js, 2_stuff.js, 3_delete.js so that way they are run in order, however in linux when i do mocha test, they run in this order 2,3,1.

So my question is what is the best practice to follow so i can run my test in the order I want??

Thank you,

Alberto

[vision media [ Tj Holowaychuk ]]

it executes in the same order they're define, so if you have:

describe 'foo'

  describe 'bar'

    it 'number one'

  describe 'baz'

    it 'number two'

foo executes, there's no tests so 'bar' executes, there's "number one" so it executes, then "baz" executes and the final "number two" test case

    

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[Dmitriy Navrotskyy]

the question is still: what is the execution order of files when running with mocha --recursive

[vision media [ Tj Holowaychuk ]]

that depends on the filesystem, it's all up to readdir(), if the order matters for some reason you should list the files out, however I'd really question why the order matters