sky-littlejs.test.ts

1	/**
2	* Tests for LittleJS Sky Component
3	*/
4
5	import { describe, it, expect, beforeEach, vi } from 'vitest'
6	import { SkyLittleJS } from '../src/render/sky-littlejs.js'
7	import type { Look } from '../src/render/sky.js'
8
9	// Mock THREE.Color
10	global.THREE = {
11	Color: class {
12	r: number
13	g: number
14	b: number
15	constructor(value: any) {
16	if (value instanceof Array) {
17	this.r = value[0]
18	this.g = value[1]
19	this.b = value[2]
20	} else {
21	const num = typeof value === 'string' ? parseInt(value.replace('#', ''), 16) : value
22	this.r = (num >> 16) & 0xFF / 255
23	this.g = (num >> 8) & 0xFF / 255
24	this.b = num & 0xFF / 255
25	}
26	}
27	}
28	} as any
29
30	describe('SkyLittleJS Component', () => {
31	let sky: SkyLittleJS
32
33	beforeEach(() => {
34	// Mock skyOf function
35	vi.stubGlobal('skyOf', () => ({
36	comet: [0, 0, 0],
37	hasComet: false,
38	cometTail: [0, 1, 0],
39	planePath: [0, 0, 0],
40	hasPlane: false,
41	planeFrom: 0,
42	planeSpeed: 0
43	}))
44
45	sky = new SkyLittleJS()
46	})
47
48	describe('Initialization', () => {
49	it('should create a shader and initialize uniforms', () => {
50	expect(sky).toBeDefined()
51	// Access private properties through any cast for testing
52	const skyAny = sky as any
53	expect(skyAny.shader).toBeDefined()
54	expect(skyAny.uniforms).toBeDefined()
55
56	const uniforms = skyAny.uniforms
57	expect(uniforms.uTop).toEqual([0, 0, 0])
58	expect(uniforms.uHorizon).toEqual([0, 0, 0])
59	expect(uniforms.uStars).toBe(0)
60	expect(uniforms.uMilkyWay).toBe(0)
61	})
62	})
63
64	describe('show() method', () => {
65	it('should update uniforms based on look configuration', () => {
66	const look: Look = {
67	top: 0xff0000,
68	horizon: 0x0000ff,
69	stars: 1.0,
70	milkyWay: 0.5,
71	aurora: 0.3,
72	meteors: true,
73	planes: false,
74	trail: 0xffffff,
75	skyLight: 0,
76	groundLight: 0,
77	skyStrength: 1,
78	sun: 0,
79	sunStrength: 0,
80	sunFrom: [0, 0, 0],
81	iceLight: 0.5,
82	snow: 0xffffff
83	}
84
85	sky.show(look, 42, 0.2)
86	const skyAny = sky as any
87	const uniforms = skyAny.uniforms
88
89	// Colors are converted to RGB values (0-1 range)
90	expect(uniforms.uTop).toEqual([1, 0, 0])
91	expect(uniforms.uHorizon).toEqual([0, 0, 1])
92	expect(uniforms.uStars).toBe(1.0)
93	expect(uniforms.uMilkyWay).toBe(0.5)
94	expect(uniforms.uAurora).toBe(0.3)
95	expect(uniforms.uOvercast).toBe(0.2)
96	expect(uniforms.uMeteors).toBe(1)
97	})
98
99	it('should handle meteors and planes flags correctly', () => {
100	const lookWithMeteors: Look = {
101	top: 0x00ff00,
102	horizon: 0x000000,
103	stars: 1.0,
104	milkyWay: 0.0,
105	aurora: 0.0,
106	meteors: true,
107	planes: false,
108	trail: 0xffffff,
109	skyLight: 0,
110	groundLight: 0,
111	skyStrength: 1,
112	sun: 0,
113	sunStrength: 0,
114	sunFrom: [0, 0, 0],
115	iceLight: 0.5,
116	snow: 0xffffff
117	}
118
119	const lookWithPlanes: Look = {
120	top: 0x00ff00,
121	horizon: 0x000000,
122	stars: 1.0,
123	milkyWay: 0.0,
124	aurora: 0.0,
125	meteors: false,
126	planes: true,
127	trail: 0xffffff,
128	skyLight: 0,
129	groundLight: 0,
130	skyStrength: 1,
131	sun: 0,
132	sunStrength: 0,
133	sunFrom: [0, 0, 0],
134	iceLight: 0.5,
135	snow: 0xffffff
136	}
137
138	sky.show(lookWithMeteors, 42, 0)
139	const skyAny = sky as any
140	expect(skyAny.uniforms.uMeteors).toBe(1)
141
142	sky.show(lookWithPlanes, 42, 0)
143	expect(skyAny.uniforms.uPlane[3]).toBe(1)
144	})
145	})
146
147	describe('update() method', () => {
148	it('should update time uniform', () => {
149	sky.update(1.5)
150	const skyAny = sky as any
151	expect(skyAny.uniforms.uTime).toBe(1.5)
152
153	sky.update(3.7)
154	expect(skyAny.uniforms.uTime).toBe(3.7)
155	})
156
157	it('should update plane position based on time', () => {
158	// Set initial plane properties
159	const look: Look = {
160	top: 0x00ff00,
161	horizon: 0x000000,
162	stars: 1.0,
163	milkyWay: 0.0,
164	aurora: 0.0,
165	meteors: false,
166	planes: true,
167	trail: 0xffffff,
168	skyLight: 0,
169	groundLight: 0,
170	skyStrength: 1,
171	sun: 0,
172	sunStrength: 0,
173	sunFrom: [0, 0, 0],
174	iceLight: 0.5,
175	snow: 0xffffff
176	}
177
178	sky.show(look, 42, 0)
179	const skyAny = sky as any
180	const initialPlaneAt = skyAny.uniforms.uPlaneAt
181
182	// Update and check if plane position changed
183	sky.update(1.0)
184	expect(skyAny.uniforms.uPlaneAt).not.toBe(initialPlaneAt)
185	})
186	})
187	})