test for geometry calculation #25
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I was not able to cover all the lines even though I did tests that went over those lines. |
gemtechd
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gemtechd
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You have to change much more code in themodules
and use good mocks in the tests
modules/ecs6-class/line.js
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| class Line { | ||
| constructor({ point1 = new Point(), point2 = new Point(), n = undefined, slope = undefined }) { | ||
| constructor({ point1 = new Point(), point2 = new Point(), n = undefined, slope = undefined }) { | ||
| this.point1 = point1; |
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you have to add more checks in the function
what happens when point is an array, what happens when n is a string etc...
| "test:coverage":"npm run test -- --coverage" | ||
| }, | ||
| "dependencies": { | ||
| "jest": "^29.7.0" |
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jest cannot be in the dependency section
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why didn't you change the code?
| describe('CALCULATE_N_OF_LINE_FUNCTION',() => { | ||
| it('should return the correct answer',() => { | ||
| const line = new Line({point1:new Point({x:6,y:4}),point2:new Point({x:2,y:2})}) | ||
| line.calculateSlope() |
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here you don't call this function, you test a different function
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missing the errors
and the coverage for this module is under 70
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Don't call functions inside the tests beside the function that you test
You have to see that other functions will be getting called inside the tested function
use mocks for a function that is being called inside an other one
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I want to move on to the next task. |
modules/ecs6-class/line.js
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| this.point1 = point1; | ||
| this.point2 = point2; | ||
| this.slope = slope; | ||
| this.n = n; |
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if n is not undefined but is also not a number
if slope is not undefined but also not a number???
modules/geometry-calculation.js
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| throw new Error('the type of point is not Point') | ||
| const proxyLine = new Line({ point1: line.point1, point2: point }) | ||
| proxyLine.calculateSlope() | ||
| if (line.slope === proxyLine.slope) { |
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Who said that the line's slope is already calculated?
| "test:coverage":"npm run test -- --coverage" | ||
| }, | ||
| "dependencies": { | ||
| "jest": "^29.7.0" |
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why didn't you change the code?
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| "license": "ISC", | ||
| "devDependencies": { | ||
| "nyc": "^17.0.0" |
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I installed it when I didn't manage with the tests, but in the end I managed.
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Did you change code? |
gemtechd
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Continue working on this task
| else{ | ||
| throw new Error('the type of point2 is not Point')} | ||
| else | ||
| throw new Error('the type of point2 is not Point') |
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Throw directly an error, like this, you don't mix up checks and codes
| // }) | ||
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| // mockCalculatSlope.mockImplementation() | ||
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remove the remarks and console before pushing the commit
| it('An error should be thrown when line1 is not of type Line', () =>{ | ||
| const line2 = new Line({point1:new Point({x:8,y:3}),point2:new Point({x:6,y:1}),slope:1}) | ||
| line2.calculateNOfLineFunction() | ||
| line2.calculateNOfLineFunction() |
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don't execute a different function in a unittest
| it('should return true when the point on this line',() => { | ||
| const line = new Line({point1:new Point({x:8,y:4}),point2:new Point({x:2,y:1}),slope:0.5}) | ||
| line.calculateNOfLineFunction() | ||
| line.calculateNOfLineFunction() |
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Where are the mocks in the tests?
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