chore(`@astrojs/rss`): Migrate tests to `node:test` (#9939)

* Progressively add new tests (remove old later)

* Finalize tests

* Remove unused comments

* Assert that errors are not present and add jsdocs to util function

* Fix

* Remove mocha deps

1 files changed, 33 insertions, 22 deletions

diff --git a/packages/astro-rss/test/rss.test.js b/packages/astro-rss/test/rss.test.js
index d32c420f1..dea3e7787 100644
--- a/packages/astro-rss/test/rss.test.js
+++ b/packages/astro-rss/test/rss.test.js
@@ -1,6 +1,6 @@
-import chai from 'chai';
-import chaiPromises from 'chai-as-promised';
-import chaiXml from 'chai-xml';
+import assert from 'node:assert/strict';
+import { describe, it } from 'node:test';
+
 import { z } from 'astro/zod';
 import rss, { getRssString } from '../dist/index.js';
 import { rssSchema } from '../dist/schema.js';
@@ -14,11 +14,9 @@ import {
 	web1FeedItem,
 	web1FeedItemWithAllData,
 	web1FeedItemWithContent,
+	parseXmlString,
 } from './test-utils.js';
 
-chai.use(chaiPromises);
-chai.use(chaiXml);
-
 // note: I spent 30 minutes looking for a nice node-based snapshot tool
 // ...and I gave up. Enjoy big strings!
 // prettier-ignore
@@ -34,6 +32,15 @@ const validXmlWithStylesheet = `<?xml version="1.0" encoding="UTF-8"?><?xml-styl
 // prettier-ignore
 const validXmlWithXSLStylesheet = `<?xml version="1.0" encoding="UTF-8"?><?xml-stylesheet href="/feedstylesheet.xsl" type="text/xsl"?><rss version="2.0"><channel><title><![CDATA[${title}]]></title><description><![CDATA[${description}]]></description><link>${site}/</link></channel></rss>`;
 
+function assertXmlDeepEqual(a, b) {
+	const parsedA = parseXmlString(a);
+	const parsedB = parseXmlString(b);
+
+	assert.strictEqual(parsedA.err, null);
+	assert.strictEqual(parsedB.err, null);
+	assert.deepStrictEqual(parsedA.result, parsedB.result);
+}
+
 describe('rss', () => {
 	it('should return a response', async () => {
 		const response = await rss({
@@ -44,10 +51,14 @@ describe('rss', () => {
 		});
 
 		const str = await response.text();
-		chai.expect(str).xml.to.equal(validXmlResult);
+
+		// NOTE: Chai used the below parser to perform the tests, but I have omitted it for now.
+		// parser = new xml2js.Parser({ trim: flag(this, 'deep') });
+
+		assertXmlDeepEqual(str, validXmlResult);
 
 		const contentType = response.headers.get('Content-Type');
-		chai.expect(contentType).to.equal('application/xml');
+		assert.strictEqual(contentType, 'application/xml');
 	});
 
 	it('should be the same string as getRssString', async () => {
@@ -62,7 +73,7 @@ describe('rss', () => {
 		const str1 = await response.text();
 		const str2 = await getRssString(options);
 
-		chai.expect(str1).to.equal(str2);
+		assert.strictEqual(str1, str2);
 	});
 });
 
@@ -75,7 +86,7 @@ describe('getRssString', () => {
 			site,
 		});
 
-		chai.expect(str).xml.to.equal(validXmlResult);
+		assertXmlDeepEqual(str, validXmlResult);
 	});
 
 	it('should generate on valid RSSFeedItem array with HTML content included', async () => {
@@ -86,7 +97,7 @@ describe('getRssString', () => {
 			site,
 		});
 
-		chai.expect(str).xml.to.equal(validXmlWithContentResult);
+		assertXmlDeepEqual(str, validXmlWithContentResult);
 	});
 
 	it('should generate on valid RSSFeedItem array with all RSS content included', async () => {
@@ -97,7 +108,7 @@ describe('getRssString', () => {
 			site,
 		});
 
-		chai.expect(str).xml.to.equal(validXmlResultWithAllData);
+		assertXmlDeepEqual(str, validXmlResultWithAllData);
 	});
 
 	it('should generate on valid RSSFeedItem array with custom data included', async () => {
@@ -111,7 +122,7 @@ describe('getRssString', () => {
 			site,
 		});
 
-		chai.expect(str).xml.to.equal(validXmlWithCustomDataResult);
+		assertXmlDeepEqual(str, validXmlWithCustomDataResult);
 	});
 
 	it('should include xml-stylesheet instruction when stylesheet is defined', async () => {
@@ -123,7 +134,7 @@ describe('getRssString', () => {
 			stylesheet: '/feedstylesheet.css',
 		});
 
-		chai.expect(str).xml.to.equal(validXmlWithStylesheet);
+		assertXmlDeepEqual(str, validXmlWithStylesheet);
 	});
 
 	it('should include xml-stylesheet instruction with xsl type when stylesheet is set to xsl file', async () => {
@@ -135,7 +146,7 @@ describe('getRssString', () => {
 			stylesheet: '/feedstylesheet.xsl',
 		});
 
-		chai.expect(str).xml.to.equal(validXmlWithXSLStylesheet);
+		assertXmlDeepEqual(str, validXmlWithXSLStylesheet);
 	});
 
 	it('should preserve self-closing tags on `customData`', async () => {
@@ -152,7 +163,7 @@ describe('getRssString', () => {
 			customData,
 		});
 
-		chai.expect(str).to.contain(customData);
+		assert.ok(str.includes(customData));
 	});
 
 	it('should not append trailing slash to URLs with the given option', async () => {
@@ -164,8 +175,8 @@ describe('getRssString', () => {
 			trailingSlash: false,
 		});
 
-		chai.expect(str).xml.to.contain('https://example.com/<');
-		chai.expect(str).xml.to.contain('https://example.com/php<');
+		assert.ok(str.includes('https://example.com/<'));
+		assert.ok(str.includes('https://example.com/php<'));
 	});
 
 	it('Deprecated import.meta.glob mapping still works', async () => {
@@ -201,7 +212,7 @@ describe('getRssString', () => {
 			site,
 		});
 
-		chai.expect(str).xml.to.equal(validXmlResult);
+		assertXmlDeepEqual(str, validXmlResult);
 	});
 
 	it('should fail when an invalid date string is provided', async () => {
@@ -212,8 +223,8 @@ describe('getRssString', () => {
 			link: phpFeedItem.link,
 		});
 
-		chai.expect(res.success).to.be.false;
-		chai.expect(res.error.issues[0].path[0]).to.equal('pubDate');
+		assert.strictEqual(res.success, false);
+		assert.strictEqual(res.error.issues[0].path[0], 'pubDate');
 	});
 
 	it('should be extendable', () => {
@@ -225,7 +236,7 @@ describe('getRssString', () => {
 		} catch (e) {
 			error = e.message;
 		}
-		chai.expect(error).to.be.null;
+		assert.strictEqual(error, null);
 	});
 
 	it('should not fail when an enclosure has a length of 0', async () => {