Fix `Bun.hash` functions (#4054)

* fix `Bun.hash` functions to behave as expected

* update Bun.hash tests
* properly test the returned hash
* include murmur32v2

* update Bun.hash docs

* run fmt

1 files changed, 21 insertions, 18 deletions

diff --git a/test/js/bun/util/hash.test.js b/test/js/bun/util/hash.test.js
index 87a5a9ce3..29c683801 100644
--- a/test/js/bun/util/hash.test.js
+++ b/test/js/bun/util/hash.test.js
@@ -1,47 +1,50 @@
-import fs from "fs";
 import { it, expect } from "bun:test";
-import path from "path";
 import { gcTick } from "harness";
 
 it(`Bun.hash()`, () => {
   gcTick();
-  Bun.hash("hello world");
-  Bun.hash(new TextEncoder().encode("hello world"));
+  expect(Bun.hash("hello world")).toBe(0x668d5e431c3b2573n);
+  expect(Bun.hash(new TextEncoder().encode("hello world"))).toBe(0x668d5e431c3b2573n);
 });
 it(`Bun.hash.wyhash()`, () => {
-  Bun.hash.wyhash("hello world");
+  expect(Bun.hash.wyhash("hello world")).toBe(0x668d5e431c3b2573n);
   gcTick();
-  Bun.hash.wyhash(new TextEncoder().encode("hello world"));
+  expect(Bun.hash.wyhash(new TextEncoder().encode("hello world"))).toBe(0x668d5e431c3b2573n);
 });
 it(`Bun.hash.adler32()`, () => {
-  Bun.hash.adler32("hello world");
+  expect(Bun.hash.adler32("hello world")).toBe(0x1a0b045d);
   gcTick();
-  Bun.hash.adler32(new TextEncoder().encode("hello world"));
+  expect(Bun.hash.adler32(new TextEncoder().encode("hello world"))).toBe(0x1a0b045d);
 });
 it(`Bun.hash.crc32()`, () => {
-  Bun.hash.crc32("hello world");
+  expect(Bun.hash.crc32("hello world")).toBe(0x0d4a1185);
   gcTick();
-  Bun.hash.crc32(new TextEncoder().encode("hello world"));
+  expect(Bun.hash.crc32(new TextEncoder().encode("hello world"))).toBe(0x0d4a1185);
 });
 it(`Bun.hash.cityHash32()`, () => {
-  Bun.hash.cityHash32("hello world");
+  expect(Bun.hash.cityHash32("hello world")).toBe(0x19a7581a);
   gcTick();
-  Bun.hash.cityHash32(new TextEncoder().encode("hello world"));
+  expect(Bun.hash.cityHash32(new TextEncoder().encode("hello world"))).toBe(0x19a7581a);
   gcTick();
 });
 it(`Bun.hash.cityHash64()`, () => {
-  Bun.hash.cityHash64("hello world");
+  expect(Bun.hash.cityHash64("hello world")).toBe(0xc7920bbdbecee42fn);
   gcTick();
-  Bun.hash.cityHash64(new TextEncoder().encode("hello world"));
+  expect(Bun.hash.cityHash64(new TextEncoder().encode("hello world"))).toBe(0xc7920bbdbecee42fn);
   gcTick();
 });
 it(`Bun.hash.murmur32v3()`, () => {
-  Bun.hash.murmur32v3("hello world");
+  expect(Bun.hash.murmur32v3("hello world")).toBe(0x5e928f0f);
   gcTick();
-  Bun.hash.murmur32v3(new TextEncoder().encode("hello world"));
+  expect(Bun.hash.murmur32v3(new TextEncoder().encode("hello world"))).toBe(0x5e928f0f);
+});
+it(`Bun.hash.murmur32v2()`, () => {
+  expect(Bun.hash.murmur32v2("hello world")).toBe(0x44a81419);
+  gcTick();
+  expect(Bun.hash.murmur32v2(new TextEncoder().encode("hello world"))).toBe(0x44a81419);
 });
 it(`Bun.hash.murmur64v2()`, () => {
-  Bun.hash.murmur64v2("hello world");
+  expect(Bun.hash.murmur64v2("hello world")).toBe(0xd3ba2368a832afcen);
   gcTick();
-  Bun.hash.murmur64v2(new TextEncoder().encode("hello world"));
+  expect(Bun.hash.murmur64v2(new TextEncoder().encode("hello world"))).toBe(0xd3ba2368a832afcen);
 });