ContextQMD
Back to Freecodecamp

Test if a Value is an Array

curriculum/challenges/english/blocks/quality-assurance-and-testing-with-chai/587d824d367417b2b2512c50.md

latest1.5 KB
Original Source

--description--

As a reminder, this project is being built upon the following starter project cloned from <a href="https://github.com/freeCodeCamp/boilerplate-mochachai/" target="_blank" rel="noopener noreferrer nofollow">GitHub</a>.

--instructions--

Within tests/1_unit-tests.js under the test labeled #11 in the Arrays suite, change each assert to either assert.isArray or assert.isNotArray to make the test pass (should evaluate to true). Do not alter the arguments passed to the asserts.

--hints--

All tests should pass.

js
const response = await fetch(code + '/_api/get-tests?type=unit&n=10');
if (!response.ok) {
  throw Error(await response.text());
}
const data = await response.json();
assert.equal(data.state, 'passed');

You should choose the correct method for the first assertion - isArray vs. isNotArray.

js
const response = await fetch(code + '/_api/get-tests?type=unit&n=10');
if (!response.ok) {
  throw Error(await response.text());
}
const data = await response.json();
assert.equal(
  data.assertions[0].method,
  'isArray',
  'String.prototype.split() returns an Array'
);

You should choose the correct method for the second assertion - isArray vs. isNotArray.

js
const response = await fetch(code + '/_api/get-tests?type=unit&n=10');
if (!response.ok) {
  throw Error(await response.text());
}
const data = await response.json();
assert.equal(
  data.assertions[1].method,
  'isNotArray',
  'Array.prototype.indexOf() returns a number'
);