From dc7a19667befd5ece02dd31cf5d3a03bc011691e Mon Sep 17 00:00:00 2001
From: David Ortner <david@ortner.se>
Date: Mon, 20 Jan 2025 21:00:42 +0100
Subject: [PATCH] chore: [#1688] Adds unit tests

---
 packages/happy-dom/src/fetch/Fetch.ts                  |  6 +++++-
 packages/happy-dom/src/fetch/SyncFetch.ts              | 10 ++++++----
 .../src/fetch/utilities/VirtualServerUtility.ts        |  6 +-----
 3 files changed, 12 insertions(+), 10 deletions(-)

diff --git a/packages/happy-dom/src/fetch/Fetch.ts b/packages/happy-dom/src/fetch/Fetch.ts
index 801d1fa6..13934060 100644
--- a/packages/happy-dom/src/fetch/Fetch.ts
+++ b/packages/happy-dom/src/fetch/Fetch.ts
@@ -9,6 +9,7 @@ import HTTPS from 'https';
 import Zlib from 'zlib';
 import URL from '../url/URL.js';
 import FS from 'fs';
+import Path from 'path';
 import { Socket } from 'net';
 import Stream from 'stream';
 import DataURIParser from './data-uri/DataURIParser.js';
@@ -305,7 +306,10 @@ export default class Fetch {
 		let buffer: Buffer;
 
 		try {
-			buffer = await FS.promises.readFile(filePath);
+			const stat = await FS.promises.stat(filePath);
+			buffer = await FS.promises.readFile(
+				stat.isDirectory() ? Path.join(filePath, 'index.html') : filePath
+			);
 		} catch (error) {
 			this.#browserFrame?.page?.console.error(
 				`${this.request.method} ${this.request.url} 404 (Not Found)`
diff --git a/packages/happy-dom/src/fetch/SyncFetch.ts b/packages/happy-dom/src/fetch/SyncFetch.ts
index c271e0ed..4f8016ad 100644
--- a/packages/happy-dom/src/fetch/SyncFetch.ts
+++ b/packages/happy-dom/src/fetch/SyncFetch.ts
@@ -4,6 +4,7 @@ import IRequestInfo from './types/IRequestInfo.js';
 import DOMExceptionNameEnum from '../exception/DOMExceptionNameEnum.js';
 import URL from '../url/URL.js';
 import FS from 'fs';
+import Path from 'path';
 import Request from './Request.js';
 import IBrowserFrame from '../browser/types/IBrowserFrame.js';
 import BrowserWindow from '../window/BrowserWindow.js';
@@ -103,7 +104,7 @@ export default class SyncFetch {
 			? this.interceptor.beforeSyncRequest({
 					request: this.request,
 					window: this.#window
-				})
+			  })
 			: undefined;
 		if (typeof beforeRequestResponse === 'object') {
 			return beforeRequestResponse;
@@ -140,7 +141,7 @@ export default class SyncFetch {
 						window: this.#window,
 						response,
 						request: this.request
-					})
+				  })
 				: undefined;
 			return typeof interceptedResponse === 'object' ? interceptedResponse : response;
 		}
@@ -287,7 +288,8 @@ export default class SyncFetch {
 
 		let buffer: Buffer;
 		try {
-			buffer = FS.readFileSync(filePath);
+			const stat = FS.statSync(filePath);
+			buffer = FS.readFileSync(stat.isDirectory() ? Path.join(filePath, 'index.html') : filePath);
 		} catch {
 			this.#browserFrame?.page?.console.error(
 				`${this.request.method} ${this.request.url} 404 (Not Found)`
@@ -491,7 +493,7 @@ export default class SyncFetch {
 					window: this.#window,
 					response: redirectedResponse,
 					request: this.request
-				})
+			  })
 			: undefined;
 		const returnResponse =
 			typeof interceptedResponse === 'object' ? interceptedResponse : redirectedResponse;
diff --git a/packages/happy-dom/src/fetch/utilities/VirtualServerUtility.ts b/packages/happy-dom/src/fetch/utilities/VirtualServerUtility.ts
index 114f43a0..c01008b9 100644
--- a/packages/happy-dom/src/fetch/utilities/VirtualServerUtility.ts
+++ b/packages/happy-dom/src/fetch/utilities/VirtualServerUtility.ts
@@ -44,11 +44,7 @@ export default class VirtualServerUtility {
 				}
 			}
 			if (baseURL) {
-				const basePath = requestURL.slice(baseURL.href.length).split('?')[0].split('#')[0];
-				const parts = basePath.split('/');
-				const isDirectory = !parts[parts.length - 1].includes('.');
-				const path = isDirectory ? basePath + '/index.html' : basePath;
-
+				const path = requestURL.slice(baseURL.href.length).split('?')[0].split('#')[0];
 				return Path.join(Path.resolve(virtualServer.directory), path);
 			}
 		}