Convert all tests to TypeScript

nip04.test.ts

@@ -0,0 +1,17 @@
+import {nip04, getPublicKey, generatePrivateKey} from '.'
+import crypto from 'crypto'
+
+// @ts-ignore
+// eslint-disable-next-line no-undef
+globalThis.crypto = crypto
+
+test('encrypt and decrypt message', async () => {
+  let sk1 = generatePrivateKey()
+  let sk2 = generatePrivateKey()
+  let pk1 = getPublicKey(sk1)
+  let pk2 = getPublicKey(sk2)
+
+  expect(
+    await nip04.decrypt(sk2, pk1, await nip04.encrypt(sk1, pk2, 'hello'))
+  ).toEqual('hello')
+})