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lab 16 3: cannot get line 11 covered
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kellv
Posts: 19
Howdy all,
I know that may seem trivial, but as the title states, I cannot get a line covered. This line it says I'm not covering is the result.
I've set up mocks for math and the timer. I do a check to see what the value is (see test: buffer, should return value below), and yet jest w/ coverage says I do not have it covered. Am I missing something here?
describe('store tests', () => { let store; beforeEach(() => { jest.spyOn(Math, 'random').mockReturnValue(0.5); global.setTimeout = require('timers').setTimeout; store = require('./store'); }) afterEach(() => { jest.restoreAllMocks(); jest.resetAllMocks(); store = null; }) test('should error', async () => { try { await store(undefined) }catch (e){ expect(e.message).toEqual('input must be a buffer') } }); test('buffer, should return value', async () => { const val = await store(Buffer.from((1).toString())) expect(val).toEqual(({"id": "i"})); // I check for the reuslt value. }); });
//coverage result 1 |1x 'use strict' 2 |1x const { promisify } = require('util') 3 |1x const timeout = promisify(setTimeout) 4 |1x module.exports = async (value) => { 5 |2x if (Buffer.isBuffer(value) === false) { 6 |1x throw Error('input must be a buffer') 7 |1x } 8 |1x await timeout(300) 9 |1x const id = Math.random().toString(36).split('.')[1].slice(0, 4) 10 |2x return { id } 11 } 12
in coverage, line 10 is highlighted in yellow, and line 11 is highlighted pink.
Thanks,
Kellly
0
Comments
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Tried again by doing another speed run , and I still have that line not being covered:
describe('store test', function () { // ... describe('and buffer value', function () { test('should fail', async () => { expect.assertions(1); const actual = await store(Buffer.from('some value')); const expected = {id: 'i'}; expect(actual).toEqual(expected) }); }); });
0 -
I think I have the issue figured out... it was because I chose 'v8' instead 'babel' for jest
0 -
glad you figured it out @kellv - I'm not much of a
jest
orbabel
user 😅0
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