rewrite tests

test/pwd-box.test.ts

@@ -0,0 +1,34 @@
+import {beforeAll, expect, test} from 'bun:test'
+import {PwdBox} from '..'
+
+let k1!: string;
+let k2!: string;
+let message!: Uint8Array;
+
+beforeAll(async () => {
+  k1 = "abc"
+  k2 = "def"
+  message = new TextEncoder().encode("Salut ! ça va ?")
+})
+
+test('base case', async () => {
+  const box = await PwdBox.encrypt(message, k1)
+  const unboxed = await box.decrypt(k1)
+  expect(unboxed).toEqual(message)
+})
+test("Different key can't decrypt", async () => {
+  const box = await PwdBox.encrypt(message, k1)
+  const unboxed = await box.decrypt(k2)
+  expect(unboxed).toBeNull()
+})
+
+test('serialization', async () => {
+  const message = new Uint8Array(8)
+  const box = await PwdBox.encrypt(message, k1)
+
+  const ser = box.toString()
+  const de = PwdBox.fromString(ser)
+  expect(de).not.toBeNull()
+
+  expect(de).toEqual(box)
+})