Replace expect with assert (#541)

* Replace expect with assert

Expect relies on node APIs that make it difficult to do browser testing.
We will add browser testing in an upcoming PR.

* Check fs.transaction only called once

package.json

@@ -120,11 +120,11 @@
     "@types/node": "^18.14.6",
     "@typescript-eslint/eslint-plugin": "^5.54.0",
     "@typescript-eslint/parser": "^5.54.0",
+    "assert": "^2.0.0",
     "copyfiles": "^2.4.1",
     "dprint": "^0.39.0",
     "esbuild": "^0.17.11",
     "eslint": "^8.35.0",
-    "expect": "^27.0.0",
     "fast-check": "^3.7.0",
     "globby": "^13.1.3",
     "madge": "^6.0.0",

src/common/crypto.node.test.ts

@@ -1,4 +1,4 @@
-import expect from "expect"
+import { strict as assert } from "assert"
 
 import * as Crypto from "./crypto.js"
 
@@ -8,13 +8,12 @@ describe("Crypto", async () => {
     const key = await Crypto.rsa.generateKey("sign")
     const signature = await Crypto.rsa.sign(data, key)
 
-    expect(
+    assert.equal(
       await Crypto.rsa.verify({
         message: data,
         publicKey: await Crypto.exportPublicKey(key),
         signature: signature,
-      })
-    ).toBe(
+      }),
       true
     )
   })
@@ -24,11 +23,10 @@ describe("Crypto", async () => {
     const key = await Crypto.rsa.generateKey("exchange")
     const encrypted = await Crypto.rsa.encrypt(data, key.publicKey)
 
-    expect(
+    assert.equal(
       await Crypto.rsa.decrypt(encrypted, key.privateKey).then(
         a => new TextDecoder().decode(a)
-      )
-    ).toBe(
+      ),
       "🙈"
     )
   })