Jasmine/Protractor: stop test on failure in beforeEach

Question

I am currently writing tests protractor and I was wondering if there is some possibility to cancel test execution as soon as something in the beforeEach fails (and return some u

Answer 1

jasmine.Env.prototype.bailFast = function() {
  var env = this;
  env.afterEach(function() {
    if (!this.results().passed()) {
      env.specFilter = function(spec) {
        return false;
      };
    }
  });
};

then just call:

jasmine.getEnv().bailFast();

(credit goes to hurrymaplelad who wrote an npm that does just that, however you don't need to use it)

Answer 2

with jasmine2 we can set throwOnExpectationFailure to true.

For example in protractor config:

//protractor.conf.js
exports.config = {
  //...
  onPrepare: () => {
    jasmine.getEnv().throwOnExpectationFailure(true);
  }
};

Answer 3

Strictly answering your question and without external dependencies:

beforeEach(function() {
    // 1) login user
    expect(1).toBe(1);
    // This works on Jasmine 1.3.1
    if (this.results_.failedCount > 0) {
        // Hack: Quit by filtering upcoming tests
        this.env.specFilter = function(spec) {
            return false;
        };
    } else {
        // 2) set some user properties
        expect(2).toBe(2);
    }
});

it('does your thing (always runs, even on prior failure)', function() {
    // Below conditional only necessary in this first it() block
    if (this.results_.failedCount === 0) {
        expect(3).toBe(3);
    }
});

it('does more things (does not run on prior failure)', function() {
    expect(4).toBe(4);
});

So if 1 fails, 2,3,4,N won't run as you expect.

There is also jasmine-bail-fast but I'm not sure how it will behave in your before each scenario.

Answer 4

jasmine-bail-fast does exactly what you did overriding the specFilter function, but does it on afterEach. So it will only fail after the first "it" is run. It won't help solving this specific case.