Max Richter
91866b4e9a
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Reviewed-on: #31 Co-authored-by: Max Richter <max@max-richter.dev> Co-committed-by: Max Richter <max@max-richter.dev>
34 lines
904 B
TypeScript
34 lines
904 B
TypeScript
import { expect, test } from 'vitest';
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import { fastHashArrayBuffer, fastHashString } from './fastHash';
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test('fastHashString doesnt produce clashes', () => {
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const hashA = fastHashString('abcdef');
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const hashB = fastHashString('abcdeg');
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const hashC = fastHashString('abcdeg');
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expect(hashA).not.toEqual(hashB);
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expect(hashB).toEqual(hashC);
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});
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test('fastHashArray doesnt product collisions', () => {
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const a = new Int32Array(1000);
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const hash_a = fastHashArrayBuffer(a);
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a[0] = 1;
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const hash_b = fastHashArrayBuffer(a);
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expect(hash_a).not.toEqual(hash_b);
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});
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// test if the fastHashArray function is deterministic
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test('fastHashArray is deterministic', () => {
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const a = new Int32Array(1000);
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a[42] = 69;
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const b = new Int32Array(1000);
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b[42] = 69;
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const hashA = fastHashArrayBuffer(a);
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const hashB = fastHashArrayBuffer(b);
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expect(hashA).toEqual(hashB);
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});
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