2.3 KiB
2.3 KiB
id | title | challengeType | forumTopicId | dashedName |
---|---|---|---|---|
587d824c367417b2b2512c4f | Test if a Value Falls within a Specific Range | 2 | 301598 | test-if-a-value-falls-within-a-specific-range |
--description--
As a reminder, this project is being built upon the following starter project on Repl.it, or cloned from GitHub.
.approximately(actual, expected, delta, [message])
Asserts that the actual
is equal to expected
, to within a +/- delta
range.
--instructions--
Within tests/1_unit-tests.js
under the test labelled #10
in the Comparisons
suite, change each assert
to assert.approximately
to make the test pass (should evaluate to true
).
Choose the minimum range (3rd parameter) to make the test always pass. It should be less than 1.
--hints--
All tests should pass.
(getUserInput) =>
$.get(getUserInput('url') + '/_api/get-tests?type=unit&n=9').then(
(data) => {
assert.equal(data.state, 'passed');
},
(xhr) => {
throw new Error(xhr.responseText);
}
);
You should choose the correct range for the first assertion - approximately(actual, expected, range)
.
(getUserInput) =>
$.get(getUserInput('url') + '/_api/get-tests?type=unit&n=9').then(
(data) => {
assert.equal(data.assertions[0].method, 'approximately');
assert.equal(
data.assertions[0].args[2],
0.5,
"weirdNumbers(0.5) is in the range (0.5, 1.5]. It's within 1 +/- 0.5"
);
},
(xhr) => {
throw new Error(xhr.responseText);
}
);
You should choose the correct range for the second assertion - approximately(actual, expected, range)
.
(getUserInput) =>
$.get(getUserInput('url') + '/_api/get-tests?type=unit&n=9').then(
(data) => {
assert.equal(data.assertions[1].method, 'approximately');
assert.equal(
data.assertions[1].args[2],
0.8,
"weirdNumbers(0.2) is in the range (0.2, 1.2]. It's within 1 +/- 0.8"
);
},
(xhr) => {
throw new Error(xhr.responseText);
}
);
--solutions--
/**
Backend challenges don't need solutions,
because they would need to be tested against a full working project.
Please check our contributing guidelines to learn more.
*/