29 lines
1.0 KiB
TypeScript
29 lines
1.0 KiB
TypeScript
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import { Quaternion } from 'three'
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import { isQuaternionVertical } from './setup'
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describe('isQuaternionVertical', () => {
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it('should identify vertical quaternions', () => {
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const verticalQuaternions = [
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new Quaternion(1, 0, 0, 0).normalize(), // bottom
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new Quaternion(-0.7, 0.7, 0, 0).normalize(), // bottom 2
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new Quaternion(0, 1, 0, 0).normalize(), // bottom 3
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new Quaternion(0, 0, 0, 1).normalize(), // look from top
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]
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verticalQuaternions.forEach((quaternion) => {
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expect(isQuaternionVertical(quaternion)).toBe(true)
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})
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})
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it('should identify non-vertical quaternions', () => {
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const nonVerticalQuaternions = [
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new Quaternion(0.7, 0, 0, 0.7).normalize(), // front
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new Quaternion(0, 0.7, 0.7, 0).normalize(), // back
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new Quaternion(-0.5, 0.5, 0.5, -0.5).normalize(), // left side
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new Quaternion(0.5, 0.5, 0.5, 0.5).normalize(), // right side
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]
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nonVerticalQuaternions.forEach((quaternion) => {
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expect(isQuaternionVertical(quaternion)).toBe(false)
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})
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})
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})
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