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BRIDGE Platform Agent
feat(platform): BRIDGE Modules hub with /modules/e and /modules/s routed workspaces
1955a0f | import { describe, it, expect } from "vitest"; | |
| import { mulberry32, hashModuleId, buildPieceSpecs, ASSEMBLY_EASE } from "./ModuleLaunchAnimation"; | |
| describe("launch animation randomness engine", () => { | |
| it("mulberry32 is deterministic per seed and well-distributed", () => { | |
| const a = mulberry32(12345); | |
| const b = mulberry32(12345); | |
| const seqA = [a(), a(), a(), a()]; | |
| const seqB = [b(), b(), b(), b()]; | |
| expect(seqA).toEqual(seqB); | |
| seqA.forEach((v) => { | |
| expect(v).toBeGreaterThanOrEqual(0); | |
| expect(v).toBeLessThan(1); | |
| }); | |
| }); | |
| it("different seeds produce different assemblies (re-seed per launch)", () => { | |
| const specs1 = buildPieceSpecs(mulberry32(hashModuleId("e") ^ 1), 11); | |
| const specs2 = buildPieceSpecs(mulberry32(hashModuleId("e") ^ 2), 11); | |
| const sig1 = JSON.stringify(specs1.map((s) => [s.from.x, s.from.y, s.from.rotate, s.from.delay])); | |
| const sig2 = JSON.stringify(specs2.map((s) => [s.from.x, s.from.y, s.from.rotate, s.from.delay])); | |
| expect(sig1).not.toEqual(sig2); | |
| }); | |
| it("piece transforms stay inside the mandated motion budget", () => { | |
| const specs = buildPieceSpecs(mulberry32(42), 11); | |
| expect(specs).toHaveLength(11); | |
| specs.forEach((s) => { | |
| const distance = Math.hypot(s.from.x, s.from.y); | |
| expect(distance).toBeGreaterThanOrEqual(240); | |
| expect(distance).toBeLessThanOrEqual(720); | |
| expect(Math.abs(s.from.rotate)).toBeGreaterThanOrEqual(8); | |
| expect(Math.abs(s.from.rotate)).toBeLessThanOrEqual(45); | |
| expect(s.from.scale).toBeGreaterThanOrEqual(0.55); | |
| expect(s.from.scale).toBeLessThanOrEqual(1.35); | |
| // stagger: i*55 + 40..90ms | |
| expect(s.from.delay).toBeGreaterThan(0); | |
| // slow-motion duration 2.4–3.2s | |
| expect(s.from.duration).toBeGreaterThanOrEqual(2.4); | |
| expect(s.from.duration).toBeLessThanOrEqual(3.2); | |
| }); | |
| }); | |
| it("uses the mandated slow-motion easing curve", () => { | |
| expect(Array.from(ASSEMBLY_EASE)).toEqual([0.22, 1, 0.36, 1]); | |
| }); | |
| }); | |