freeCodeCamp/curriculum/challenges/english/06-quality-assurance/quality-assurance-and-testing-with-chai/test-for-truthiness.english.md

id, title, challengeType, forumTopicId

id	title	challengeType	forumTopicId
587d824b367417b2b2512c49	Test for Truthiness	2	301596

Description

As a reminder, this project is being built upon the following starter project on Repl.it, or cloned from GitHub.

isTrue() will test for the boolean value true and isNotTrue() will pass when given anything but the boolean value of true.

assert.isTrue(true, 'this will pass with the boolean value true');
assert.isTrue('true', 'this will NOT pass with the string value 'true');
assert.isTrue(1, 'this will NOT pass with the number value 1');

isFalse() and isNotFalse() also exist and behave similary to their true counterparts except they look for the boolean value of false.

Instructions

Use assert.isTrue() or assert.isNotTrue() to make the tests pass.

Tests

tests:
  - text: All tests should pass.
    testString: getUserInput => $.get(getUserInput('url') + '/_api/get-tests?type=unit&n=3').then(data => {assert.equal(data.state,'passed'); }, xhr => { throw new Error(xhr.responseText); })
  - text: You should choose the right assertion - isTrue vs. isNotTrue.
    testString: getUserInput => $.get(getUserInput('url') + '/_api/get-tests?type=unit&n=3').then(data => {  assert.equal(data.assertions[0].method, 'isTrue', 'True is true'); }, xhr => { throw new Error(xhr.responseText); })
  - text: You should choose the right assertion - isTrue vs. isNotTrue.
    testString: getUserInput => $.get(getUserInput('url') + '/_api/get-tests?type=unit&n=3').then(data => {  assert.equal(data.assertions[1].method, 'isTrue', 'Double negation of a truthy value is true'); }, xhr => { throw new Error(xhr.responseText); })
  - text: You should choose the right assertion - isTrue vs. isNotTrue.
    testString: getUserInput => $.get(getUserInput('url') + '/_api/get-tests?type=unit&n=3').then(data => {  assert.equal(data.assertions[2].method, 'isNotTrue', 'A truthy object is not true - neither is a false one'); }, xhr => { throw new Error(xhr.responseText); })

Challenge Seed

Solution

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