Add unit test with mock function#33
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gemtechd
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gemtechd
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use the it test function and not test
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| constructor({ point1 = new Point(), point2 = new Point(), n = undefined, slope = undefined }) { | ||
| if (!(point1 instanceof Point) || !(point2 instanceof Point)) { | ||
| throw new Error('InvalidPointError: point1 and point2 must be instances of Point'); | ||
| } |
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what happens if n is a string, or if slope is an object (for example)
modules/ecs6-class/line.js
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| calculateSlope() { | ||
| calculateSlope = () => { |
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it's better it should be calculateSlope() and not calculateScope = () =>
| this.calculateNOfLineFunction(); | ||
| } | ||
| if (this.slope === 0) { | ||
| throw new Error('InvalidSlopeError: Slope cannot be zero for calculating X by Y'); |
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so what is the x? how do you calculate it?
| const Point = require('../modules/ecs6-class/point'); | ||
| const calculateDistance = (point1, point2) => { | ||
| if (!point1 || !point2 || typeof point1.x !== 'number' || typeof point1.y !== 'number' || typeof point2.x !== 'number' || typeof point2.y !== 'number') { | ||
| throw new Error('Invalid input points'); |
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which input is invalid? and why is it invalid?
modules/geometry-calculation.js
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| const calculateJunctionPoint = (line1, line2) => { | ||
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| if (!(line1 instanceof Line) || !(line2 instanceof Line)) { | ||
| throw new Error('Invalid input lines'); |
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| describe('Line class', () => { | ||
| test('should create a line with default points and undefined slope and n', () => { | ||
| const line = new Line({}); |
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give more examples for the good constructor
tests/ecs6-class/line.test.js
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| test('should handle horizontal lines correctly by throwing an error', () => { | ||
| // Create a horizontal line (slope = 0) |
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| describe('Point class', () => { | ||
| test('should create a point with default values (0, 0)', () => { | ||
| const point = new Point(); |
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Where are the mocks for the functions?
tests/geometry_calculation.test.js
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| const line = new Line({ point1: point1, point2: point2} ); | ||
| const point = new Point({ x: 2, y: 2 }); | ||
| line.calculateSlope(); | ||
| line.calculateNOfLineFunction(); |
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you can't call different functions so that you test will be good
each unittest calls only one function (that's what you have written in the presentation)
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