uncaught.spec.js

'use strict';

var assert = require('assert');
var run = require('./helpers').runMochaJSON;
var args = [];

describe('uncaught exceptions', function() {
  it('handles uncaught exceptions from hooks', function(done) {
    run('uncaught-hook.fixture.js', args, function(err, res) {
      if (err) {
        done(err);
        return;
      }
      assert.strictEqual(res.stats.pending, 0);
      assert.strictEqual(res.stats.passes, 0);
      assert.strictEqual(res.stats.failures, 1);

      assert.strictEqual(
        res.failures[0].fullTitle,
        'uncaught "before each" hook for "test"'
      );
      assert.strictEqual(res.code, 1);
      done();
    });
  });

  it('handles uncaught exceptions from async specs', function(done) {
    run('uncaught.fixture.js', args, function(err, res) {
      if (err) {
        done(err);
        return;
      }
      assert.strictEqual(res.stats.pending, 0);
      assert.strictEqual(res.stats.passes, 0);
      assert.strictEqual(res.stats.failures, 2);

      assert.strictEqual(
        res.failures[0].title,
        'fails exactly once when a global error is thrown first'
      );
      assert.strictEqual(
        res.failures[1].title,
        'fails exactly once when a global error is thrown second'
      );
      assert.strictEqual(res.code, 2);
      done();
    });
  });

  it('handles uncaught exceptions from which Mocha cannot recover', function(done) {
    run('uncaught-fatal.fixture.js', args, function(err, res) {
      if (err) {
        return done(err);
      }

      var testName = 'should bail if a successful test asynchronously fails';
      expect(res, 'to have failed')
        .and('to have passed test count', 1)
        .and('to have failed test count', 1)
        .and('to have passed test', testName)
        .and('to have failed test', testName);

      done();
    });
  });

  it('handles uncaught exceptions within pending tests', function(done) {
    run('uncaught-pending.fixture.js', args, function(err, res) {
      if (err) {
        return done(err);
      }

      expect(res, 'to have failed')
        .and('to have passed test count', 3)
        .and('to have pending test count', 1)
        .and('to have failed test count', 1)
        .and(
          'to have passed test',
          'test1',
          'test3 - should run',
          'test4 - should run'
        )
        .and('to have pending test order', 'test2')
        .and('to have failed test', 'test2');

      done();
    });
  });

  it('handles uncaught exceptions within open tests', function(done) {
    run('uncaught/recover.fixture.js', args, function(err, res) {
      if (err) {
        return done(err);
      }

      expect(
        res,
        'to have failed with error',
        'Whoops!',
        'Whoops!', // JSON reporter does not show the second error message
        'should get upto here and throw'
      )
        .and('to have passed test count', 2)
        .and('to have failed test count', 3)
        .and('to have passed test', 'should wait 15ms', 'test 3')
        .and(
          'to have failed test',
          'throw delayed error',
          'throw delayed error',
          '"after all" hook for "test 3"'
        );

      done();
    });
  });

  it('removes uncaught exceptions handlers correctly', function(done) {
    run('uncaught/listeners.fixture.js', args, function(err, res) {
      if (err) {
        return done(err);
      }

      expect(res, 'to have passed').and('to have passed test count', 0);

      done();
    });
  });
});