Functional tests passing even though there are errors

[x3ro]

I noticed that some of the functional tests (I haven't verified if this applies for all) pass even if there are errors during the test execution. This, for example, applies for the spec/registrationJourney.js. To verify this, insert some random string in the scope below

.getText('span.amount')
.then((amount) => {
    adkaflsdflksd // e.g.

The test still passes, even though there is an error. I noticed that this is fixed by replacing .end(done) with .call(done), but am not sure if that is a proper fix.

PS: This occurred with Node v9.4.0. Dependencies installed with npm v5.6.0.

[lplotni]

Good catch 👍 And ❤️ for the detailed and informative description.