Quality assurance challenge 1: Learn how js assertions work

JavaScript
1

Hi! I’m working on the first challenge of quality assurance. I’m getting errors in all fcc tests although everything is fine in my code, except this console output:

Listening on port 3000
Running Tests...


  Unit Tests
    Basic Assertions
      1) #isNull, #isNotNull
      2) #isDefined, #isUndefined
      3) #isOk, #isNotOk
      4) #isTrue, #isNotTrue
    Equality
      5) #equal, #notEqual
      6) #strictEqual, #notStrictEqual
      7) #deepEqual, #notDeepEqual
    Comparisons
      8) #isAbove, #isAtMost
      9) #isBelow, #isAtLeast
      10) #approximately
    Arrays
      11) #isArray, #isNotArray
      12) Array #include, #notInclude
    Strings
      13) #isString, #isNotString
      14) String #include, #notInclude
      15) #match, #notMatch
    Objects
      16) #property, #notProperty
      17) #typeOf, #notTypeOf
      18) #instanceOf, #notInstanceOf

  Functional Tests
    Integration tests with chai-http
      19) Test GET /hello with no name
      20) Test GET /hello with your name
      21) Send {surname: "Colombo"}
      22) Send {surname: "da Verrazzano"}

  Functional Tests with Zombie.js
    Headless browser
      23) should have a working "site" property
    "Famous Italian Explorers" form
      24) Submit the surname "Colombo" in the HTML form
      25) Submit the surname "Vespucci" in the HTML form


  0 passing (156ms)
  25 failing

  1) Unit Tests
       Basic Assertions
         #isNull, #isNotNull:

      This is an optional error description - e.g. null is null
      + expected - actual


      at Context.<anonymous> (tests/1_unit-tests.js:8:14)
      at processImmediate (node:internal/timers:466:21)

  2) Unit Tests
       Basic Assertions
         #isDefined, #isUndefined:
     AssertionError: assert.fail()
      at Context.<anonymous> (tests/1_unit-tests.js:13:14)
      at processImmediate (node:internal/timers:466:21)

  3) Unit Tests
       Basic Assertions
         #isOk, #isNotOk:
     AssertionError: assert.fail()
      at Context.<anonymous> (tests/1_unit-tests.js:19:14)
      at processImmediate (node:internal/timers:466:21)

  4) Unit Tests
       Basic Assertions
         #isTrue, #isNotTrue:
     AssertionError: assert.fail()
      at Context.<anonymous> (tests/1_unit-tests.js:25:14)
      at processImmediate (node:internal/timers:466:21)

  5) Unit Tests
       Equality
         #equal, #notEqual:
     AssertionError: Numbers are coerced into strings with ==
      at Context.<anonymous> (tests/1_unit-tests.js:36:14)
      at processImmediate (node:internal/timers:466:21)

  6) Unit Tests
       Equality
         #strictEqual, #notStrictEqual:
     AssertionError: assert.fail()
      at Context.<anonymous> (tests/1_unit-tests.js:43:14)
      at processImmediate (node:internal/timers:466:21)

  7) Unit Tests
       Equality
         #deepEqual, #notDeepEqual:
     AssertionError: The order of keys doesn't matter
      at Context.<anonymous> (tests/1_unit-tests.js:50:14)
      at processImmediate (node:internal/timers:466:21)

  8) Unit Tests
       Comparisons
         #isAbove, #isAtMost:
     AssertionError: assert.fail()
      at Context.<anonymous> (tests/1_unit-tests.js:64:14)
      at processImmediate (node:internal/timers:466:21)

  9) Unit Tests
       Comparisons
         #isBelow, #isAtLeast:
     AssertionError: assert.fail()
      at Context.<anonymous> (tests/1_unit-tests.js:71:14)
      at processImmediate (node:internal/timers:466:21)

  10) Unit Tests
       Comparisons
         #approximately:
     AssertionError: assert.fail()
      at Context.<anonymous> (tests/1_unit-tests.js:78:14)
      at processImmediate (node:internal/timers:466:21)

  11) Unit Tests
       Arrays
         #isArray, #isNotArray:
     AssertionError: assert.fail()
      at Context.<anonymous> (tests/1_unit-tests.js:90:14)
      at processImmediate (node:internal/timers:466:21)

  12) Unit Tests
       Arrays
         Array #include, #notInclude:
     AssertionError: It's summer in july...
      at Context.<anonymous> (tests/1_unit-tests.js:95:14)
      at processImmediate (node:internal/timers:466:21)

  13) Unit Tests
       Strings
         #isString, #isNotString:
     AssertionError: assert.fail()
      at Context.<anonymous> (tests/1_unit-tests.js:108:14)
      at processImmediate (node:internal/timers:466:21)

  14) Unit Tests
       Strings
         String #include, #notInclude:
     AssertionError: 'Arrow' contains 'row'
      at Context.<anonymous> (tests/1_unit-tests.js:114:14)
      at processImmediate (node:internal/timers:466:21)

  15) Unit Tests
       Strings
         #match, #notMatch:
     AssertionError: assert.fail()
      at Context.<anonymous> (tests/1_unit-tests.js:120:14)
      at processImmediate (node:internal/timers:466:21)

  16) Unit Tests
       Objects
         #property, #notProperty:
     AssertionError: Cars don't have wings
      at Context.<anonymous> (tests/1_unit-tests.js:146:14)
      at processImmediate (node:internal/timers:466:21)

  17) Unit Tests
       Objects
         #typeOf, #notTypeOf:
     AssertionError: assert.fail()
      at Context.<anonymous> (tests/1_unit-tests.js:152:14)
      at processImmediate (node:internal/timers:466:21)

  18) Unit Tests
       Objects
         #instanceOf, #notInstanceOf:
     AssertionError: assert.fail()
      at Context.<anonymous> (tests/1_unit-tests.js:160:14)
      at processImmediate (node:internal/timers:466:21)

  19) Functional Tests
       Integration tests with chai-http
         Test GET /hello with no name:
     Uncaught AssertionError: assert.fail()
      at /home/runner/boilerplate-mochachai/tests/2_functional-tests.js:18:18
      at Test.Request.callback (node_modules/superagent/lib/node/index.js:716:12)
      at IncomingMessage.<anonymous> (node_modules/superagent/lib/node/index.js:916:18)
      at IncomingMessage.emit (node:events:539:35)
      at endReadableNT (node:internal/streams/readable:1345:12)
      at processTicksAndRejections (node:internal/process/task_queues:83:21)

  20) Functional Tests
       Integration tests with chai-http
         Test GET /hello with your name:
     Uncaught AssertionError: assert.fail()
      at /home/runner/boilerplate-mochachai/tests/2_functional-tests.js:29:18
      at Test.Request.callback (node_modules/superagent/lib/node/index.js:716:12)
      at IncomingMessage.<anonymous> (node_modules/superagent/lib/node/index.js:916:18)
      at IncomingMessage.emit (node:events:539:35)
      at endReadableNT (node:internal/streams/readable:1345:12)
      at processTicksAndRejections (node:internal/process/task_queues:83:21)

  21) Functional Tests
       Integration tests with chai-http
         Send {surname: "Colombo"}:
     Uncaught AssertionError: assert.fail()
      at /home/runner/boilerplate-mochachai/tests/2_functional-tests.js:41:18
      at Test.Request.callback (node_modules/superagent/lib/node/index.js:716:12)
      at /home/runner/boilerplate-mochachai/node_modules/superagent/lib/node/index.js:916:18
      at IncomingMessage.<anonymous> (node_modules/superagent/lib/node/parsers/json.js:19:7)
      at IncomingMessage.emit (node:events:539:35)
      at endReadableNT (node:internal/streams/readable:1345:12)
      at processTicksAndRejections (node:internal/process/task_queues:83:21)

  22) Functional Tests
       Integration tests with chai-http
         Send {surname: "da Verrazzano"}:
     AssertionError: assert.fail()
      at Context.<anonymous> (tests/2_functional-tests.js:48:14)
      at processImmediate (node:internal/timers:466:21)

  23) Functional Tests with Zombie.js
       Headless browser
         should have a working "site" property:
     ReferenceError: browser is not defined
      at Context.<anonymous> (tests/2_functional-tests.js:64:24)
      at processImmediate (node:internal/timers:466:21)

  24) Functional Tests with Zombie.js
       "Famous Italian Explorers" form
         Submit the surname "Colombo" in the HTML form:
     AssertionError: assert.fail()
      at Context.<anonymous> (tests/2_functional-tests.js:71:14)
      at processImmediate (node:internal/timers:466:21)

  25) Functional Tests with Zombie.js
       "Famous Italian Explorers" form
         Submit the surname "Vespucci" in the HTML form:
     AssertionError: assert.fail()
      at Context.<anonymous> (tests/2_functional-tests.js:77:14)
      at processImmediate (node:internal/timers:466:21)

This is the link to my repl: https://replit.com/@redouane1/boilerplate-mochachai

I would be happy if someone help to figure out the problem.

2

This is from your Replit, the #1 test:

suite('Unit Tests', function () {
  suite('Basic Assertions', function () {
    // #1
    test('#isNull, #isNotNull', function () {
      assert.isNotNull(null, 'This is an optional error description - e.g. null is null');
      assert.isNull(1, '1 is not null');
    });

The value of the null is null.
And, the value of 1 is not null.

But, you are asserting otherwise in your test.

1 Like
3

In my mind, it was as you said. But, I made a mistake when typing. Thanks!

4

This topic was automatically closed 182 days after the last reply. New replies are no longer allowed.