How to catch thrown errors?

[khaledkbadr]

I have Meteor.method that throw errors. This method use before method hooks that throw an error. I'm using promises to test it. But the error throws before the expect can test it.

return server.promise(function (resolve, reject, data) {
        Meteor.call('Post.add', {content: 'sample content'}, function(err, result) {
          if(err) {
            reject(err);
          }
        });
      }).then(function (err) {
        expect(err).to.be.an('null');
      });

[khaledkbadr]

My bad. I figured how to test it by using synchronous Meteor.call. It was not a gagarin issue.
Thanks

[apendua]

@khaledkbadr Here's how the code should look like:

return server.promise(function (resolve, reject, data) {
        Meteor.call('Post.add', {content: 'sample content'}, function(err, result) {
          if (err) {
            reject(err);
          } else {
            resolve(result);
          }
        });
      }).then(function (result) {
        // this will be executed when you call resolve
      }, function (err) {
        // this will be executed when you call reject
      }
    });

If you're using mocha and if you return the promise from your test case definition, then you don't really need to call then() at then end, because mocha will do it implicitly. unless you of course want to log something or add some more specific assertions. In the latter case I suggest using a helper library like chai-as-promised for example.

[khaledkbadr]

Thanks, you've save me lots of time.