Replace chai with node:assert

Author: evert

package-lock.json

@@ -35,13 +35,11 @@
   ],
   "homepage": "https://github.com/evert/structured-header#readme",
   "devDependencies": {
-    "@types/chai": "^5.0.0",
     "@types/node": "^18.19.10",
     "@typescript-eslint/eslint-plugin": "^8.8.0",
     "@typescript-eslint/parser": "^8.8.0",
     "base32-decode": "^1.0.0",
     "base32-encode": "^2.0.0",
-    "chai": "^5.0.3",
     "eslint": "^9.11.1",
     "typescript": "^5.1.3"
   },

package.json

@@ -1,4 +1,3 @@
-import { expect } from 'chai';
 import { describe, it } from 'node:test';
 import {
   parseItem,
@@ -21,6 +20,7 @@ import base32Decode from 'base32-decode';
 import fs from 'node:fs';
 import path from 'node:path';
 import { fileURLToPath } from 'node:url';
+import assert from 'node:assert';
 
 describe('HTTP-WG tests', () => {
 
@@ -139,7 +139,7 @@ function makeParseTest(test) {
     }
 
     if (test.must_fail) {
-      expect(hadError).to.equal(true, 'Parsing this should result in a failure');
+      assert.ok(hadError, 'Parsing this should result in a failure');
 
       if (!(caughtError instanceof ParseError)) {
         console.error('Original error:');
@@ -154,7 +154,7 @@ function makeParseTest(test) {
       if (hadError) {
 
         if (test.can_fail) {
-          expect(caughtError instanceof ParseError).to.equal(true);
+          assert.ok(caughtError instanceof ParseError);
         } else {
           // Failure is NOT OK
           throw new Error('We should not have failed but got an error: ' + caughtError.message);
@@ -164,7 +164,7 @@ function makeParseTest(test) {
       result = packTestValue(result);
 
       try {
-        expect(result).to.deep.equal(expected);
+        assert.deepStrictEqual(result, expected);
       } catch (e) {
         if (test.can_fail) {
           // Optional failure
@@ -248,23 +248,23 @@ function makeSerializeTest(test) {
     }
 
     if (test.must_fail) {
-      expect(hadError).to.equal(true, 'Parsing this should result in a failure');
+      assert.ok(hadError, 'Parsing this should result in a failure');
     } else {
 
       if (hadError) {
         // There was an error
         if (test.can_fail) {
 
           // Failure is OK
-          expect(hadError).to.equal(true);
+          assert.ok(hadError);
         } else {
           // Failure is NOT OK
           throw new Error('We should not have failed but got an error: ' + caughtError.message);
         }
       }
 
       try {
-        expect(output).to.deep.equal(expected);
+        assert.strictEqual(output, expected);
       } catch (e) {
 
         if (test.can_fail) {

test/httpwg-tests.js

@@ -3,8 +3,8 @@ import {
   serializeItem,
   SerializeError
 } from '../dist/index.js';
-import { expect} from 'chai';
 import { describe, it } from 'node:test';
+import assert from 'node:assert';
 
 /**
  * These tests cover cases that aren't covered by the HTTPWG tests.
@@ -23,7 +23,8 @@ describe('serializer shorthands', () => {
       };
 
       const str = serializeDictionary(simpleDict);
-      expect(str).to.equal(
+      assert.equal(
+        str,
         'a=1, b, c="d", f=(1 2 3);a="b"'
       );
 
@@ -45,7 +46,7 @@ describe('serializer shorthands', () => {
           throw err;
         }
       }
-      expect(caught).to.be.true;
+      assert.ok(caught);
 
     });