Bill
de1ab4eb2b
- Create getCryptoRandomValues() utility - Support both window.crypto (browser/Electron) and crypto.webcrypto (Node.js) - Add comprehensive test coverage for adapter functionality
57 lines
1.8 KiB
TypeScript
57 lines
1.8 KiB
TypeScript
import { getCryptoRandomValues } from '../src/utils/crypto-adapter';
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describe('crypto-adapter', () => {
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describe('getCryptoRandomValues', () => {
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it('should fill Uint8Array with random values', () => {
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const array = new Uint8Array(32);
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const result = getCryptoRandomValues(array);
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expect(result).toBe(array);
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expect(result.length).toBe(32);
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// Verify not all zeros (extremely unlikely with true random)
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const hasNonZero = Array.from(result).some(val => val !== 0);
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expect(hasNonZero).toBe(true);
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});
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it('should produce different values on subsequent calls', () => {
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const array1 = new Uint8Array(32);
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const array2 = new Uint8Array(32);
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getCryptoRandomValues(array1);
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getCryptoRandomValues(array2);
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// Arrays should be different (extremely unlikely to be identical)
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const identical = Array.from(array1).every((val, idx) => val === array2[idx]);
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expect(identical).toBe(false);
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});
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it('should preserve array type', () => {
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const uint8 = new Uint8Array(16);
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const uint16 = new Uint16Array(8);
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const uint32 = new Uint32Array(4);
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const result8 = getCryptoRandomValues(uint8);
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const result16 = getCryptoRandomValues(uint16);
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const result32 = getCryptoRandomValues(uint32);
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expect(result8).toBeInstanceOf(Uint8Array);
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expect(result16).toBeInstanceOf(Uint16Array);
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expect(result32).toBeInstanceOf(Uint32Array);
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});
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it('should work with different array lengths', () => {
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const small = new Uint8Array(8);
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const medium = new Uint8Array(32);
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const large = new Uint8Array(128);
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getCryptoRandomValues(small);
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getCryptoRandomValues(medium);
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getCryptoRandomValues(large);
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expect(small.every(val => val >= 0 && val <= 255)).toBe(true);
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expect(medium.every(val => val >= 0 && val <= 255)).toBe(true);
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expect(large.every(val => val >= 0 && val <= 255)).toBe(true);
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});
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});
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});
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