diff --git a/packages/bun-vscode/.gitignore b/packages/bun-vscode/.gitignore
index cafc85cea7..792cb949ab 100644
--- a/packages/bun-vscode/.gitignore
+++ b/packages/bun-vscode/.gitignore
@@ -1,3 +1,10 @@
-node_modules
-extension
-example/.vscode
+# Project files
+
+/node_modules
+/extension
+/example/.vscode
+/.vscode-test
+
+# macOS files
+
+.DS_Store
diff --git a/packages/bun-vscode/bun.lockb b/packages/bun-vscode/bun.lockb
index 9433b0c6de..b5dfde26d3 100755
Binary files a/packages/bun-vscode/bun.lockb and b/packages/bun-vscode/bun.lockb differ
diff --git a/packages/bun-vscode/package.json b/packages/bun-vscode/package.json
index cdaecb9099..23ace8a229 100644
--- a/packages/bun-vscode/package.json
+++ b/packages/bun-vscode/package.json
@@ -1,6 +1,6 @@
 {
   "name": "bun-vscode",
-  "version": "0.0.13",
+  "version": "0.0.15",
   "author": "oven",
   "repository": {
     "type": "git",
@@ -8,11 +8,13 @@
   },
   "main": "dist/extension.js",
   "devDependencies": {
+    "@types/bun": "^1.1.10",
     "@types/vscode": "^1.60.0",
     "@vscode/debugadapter": "^1.56.0",
     "@vscode/debugadapter-testsupport": "^1.56.0",
+    "@vscode/test-cli": "^0.0.10",
+    "@vscode/test-electron": "^2.4.1",
     "@vscode/vsce": "^2.20.1",
-    "bun-types": "^0.7.3",
     "esbuild": "^0.19.2",
     "typescript": "^5.0.0"
   },
@@ -43,6 +45,7 @@
     "build": "node scripts/build.mjs",
     "pretest": "bun run build",
     "test": "node scripts/test.mjs",
+    "dev": "vscode-test --config scripts/dev.mjs",
     "prepublish": "npm version patch && bun run build",
     "publish": "cd extension && bunx vsce publish"
   },
diff --git a/packages/bun-vscode/scripts/build.mjs b/packages/bun-vscode/scripts/build.mjs
index 73f88b014c..24fc6497c4 100644
--- a/packages/bun-vscode/scripts/build.mjs
+++ b/packages/bun-vscode/scripts/build.mjs
@@ -1,13 +1,9 @@
 import { buildSync } from "esbuild";
 import { execSync } from "node:child_process";
 import { cpSync, mkdirSync, rmSync } from "node:fs";
-import path from "node:path";
+import { dirname } from "node:path";
 
-let { pathname } = new URL("..", import.meta.url);
-if (process.platform === "win32") {
-  pathname = path.normalize(pathname).substring(1); // remove leading slash
-}
-process.chdir(pathname);
+process.chdir(dirname(import.meta.dirname));
 
 buildSync({
   entryPoints: ["src/extension.ts", "src/web-extension.ts"],
diff --git a/packages/bun-vscode/scripts/dev.mjs b/packages/bun-vscode/scripts/dev.mjs
new file mode 100644
index 0000000000..33fe719583
--- /dev/null
+++ b/packages/bun-vscode/scripts/dev.mjs
@@ -0,0 +1,26 @@
+import { defineConfig } from "@vscode/test-cli";
+import { dirname, join } from "node:path";
+import { existsSync, mkdirSync, writeFileSync } from "node:fs";
+
+const workspacePath = dirname(import.meta.dirname);
+const vscodePath = join(workspacePath, ".vscode-test");
+const vscodeTestPath = join(vscodePath, "launch.test.js");
+
+if(!existsSync(vscodeTestPath)) {
+  mkdirSync(vscodePath, { recursive: true });
+  writeFileSync(vscodeTestPath, `// Generated by ${import.meta.filename}
+// A test that intentionally waits forever and does nothing,
+// so you can debug and test the VSCode extension in a clean environment.
+suite("VSCode extension", function () {
+  this.timeout(Number.MAX_SAFE_INTEGER);
+  test("wait forever", (done) => {});
+});
+`);
+}
+
+export default defineConfig({
+  workspaceFolder: join(workspacePath, "example"),
+  extensionDevelopmentPath: workspacePath,
+  skipExtensionDependencies: true,
+  files: vscodeTestPath,
+});
diff --git a/packages/bun-vscode/scripts/test.mjs b/packages/bun-vscode/scripts/test.mjs
index 105f577ac0..505e93ef42 100644
--- a/packages/bun-vscode/scripts/test.mjs
+++ b/packages/bun-vscode/scripts/test.mjs
@@ -1,12 +1,8 @@
 import { exec } from "node:child_process";
 import { readdirSync } from "node:fs";
-import path from "node:path";
+import { dirname } from "node:path";
 
-let { pathname } = new URL("..", import.meta.url);
-if (process.platform === "win32") {
-  pathname = path.normalize(pathname).substring(1); // remove leading slash
-}
-process.chdir(pathname);
+process.chdir(dirname(import.meta.dirname));
 
 let extPath;
 for (const filename of readdirSync("extension")) {
@@ -20,6 +16,6 @@ if (!extPath) {
   throw new Error("No .vsix file found");
 }
 
-exec(`code --new-window --install-extension=${path} --extensionDevelopmentPath=${pathname} example`, {
+exec(`code --new-window --install-extension=${extPath} --extensionDevelopmentPath=${process.cwd()} example`, {
   stdio: "inherit",
 });