diff --git a/package-lock.json b/package-lock.json
index 91c8d1a..9d7f45e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -15614,7 +15614,7 @@
       "hasInstallScript": true,
       "license": "MIT",
       "bin": {
-        "clang-format": "build/index.js"
+        "clang-format": "build/cli.js"
       },
       "engines": {
         "node": ">=16"
diff --git a/package.json b/package.json
index 6a31e82..ec39dc3 100644
--- a/package.json
+++ b/package.json
@@ -42,9 +42,6 @@
       "npx editorconfig-checker -config .editorconfig-checker.json"
     ],
     "*.js": "npx eslint",
-    "*.md": "npx markdownlint",
-    "packages/**/*.js": [
-      "npm run test"
-    ]
+    "*.md": "npx markdownlint"
   }
 }
diff --git a/packages/clang-format-node/package.json b/packages/clang-format-node/package.json
index 65e34f4..4029e63 100644
--- a/packages/clang-format-node/package.json
+++ b/packages/clang-format-node/package.json
@@ -9,7 +9,7 @@
     "README.md"
   ],
   "bin": {
-    "clang-format": "build/index.js"
+    "clang-format": "build/cli.js"
   },
   "keywords": [
     "clang-format",
@@ -43,7 +43,8 @@
   "scripts": {
     "postinstall": "find ./build/bin -type f -exec chmod 755 {} + || true",
     "prepublishOnly": "npm run build",
-    "build": "npx babel src -d build --no-comments --compact true --minified && cp -r src/bin build && cp ../../LICENSE ../../README.md .",
-    "test": "npx mocha ./tests --inline-diffs true"
+    "build": "npx babel src -d build --ignore **/*.test.js && cp -r src/bin build && cp ../../LICENSE ../../README.md .",
+    "pretest": "find ./src/bin -type f -exec chmod 755 {} + || true",
+    "test": "node --test"
   }
 }
diff --git a/packages/clang-format-node/src/cli.js b/packages/clang-format-node/src/cli.js
new file mode 100644
index 0000000..e61dc23
--- /dev/null
+++ b/packages/clang-format-node/src/cli.js
@@ -0,0 +1,18 @@
+#!/usr/bin/env node
+// The shebang line `#!/usr/bin/env node` ensures the script runs with the correct Node.js interpreter across different environments.
+
+const { spawn } = require('child_process');
+
+const { clangFormatPath } = require('./utils/clangFormatPath');
+
+const spawned = spawn(clangFormatPath, process.argv.slice(2), {
+  stdio: 'inherit',
+});
+
+spawned.on('close', code => {
+  if (code !== 0) {
+    // eslint-disable-next-line no-console
+    console.error(`Process exited with code: ${code}`);
+    process.exit(code);
+  }
+});
diff --git a/packages/clang-format-node/src/cli.test.js b/packages/clang-format-node/src/cli.test.js
new file mode 100644
index 0000000..f178e48
--- /dev/null
+++ b/packages/clang-format-node/src/cli.test.js
@@ -0,0 +1,26 @@
+const { doesNotThrow, throws } = require('node:assert');
+const { execSync } = require('node:child_process');
+const { resolve } = require('node:path');
+const { describe, it } = require('node:test');
+
+const cli = resolve(__dirname, 'cli.js');
+
+describe('cli doesNotThrow and throws testing', () => {
+  // Correct
+  it('node cli.js --help', () => {
+    doesNotThrow(() => {
+      execSync(`node ${cli} --help`);
+    });
+  });
+  it('node cli.js --version', () => {
+    doesNotThrow(() => {
+      execSync(`node ${cli} --version`);
+    });
+  });
+  // Wrong
+  it('node cli.js --abcdefg', () => {
+    throws(() => {
+      execSync(`node ${cli} --abcdefg`);
+    });
+  });
+});
diff --git a/packages/clang-format-node/src/getClangFormatPath.js b/packages/clang-format-node/src/getClangFormatPath.js
deleted file mode 100644
index 6410d19..0000000
--- a/packages/clang-format-node/src/getClangFormatPath.js
+++ /dev/null
@@ -1,27 +0,0 @@
-const { existsSync } = require('fs');
-const { resolve } = require('path');
-
-/**
- * Resolves and returns the path to the `clang-format` executable based on the OS platform and architecture.
- * Throws an error if the executable is not found.
- *
- * @param {string} osPlatform The current operating system platform (e.g., 'darwin', 'linux', 'win32').
- * @param {string} architecture The system architecture (e.g., 'arm64', 'x64').
- * @returns {string} The resolved path to the `clang-format` executable.
- * @throws {Error} Throws an error if the executable is not found for the specified OS platform and architecture.
- */
-module.exports = (osPlatform, architecture) => {
-  const clangFormatPath = resolve(
-    __dirname,
-    `bin`,
-    `cfn-${osPlatform}-${architecture}`,
-    `clang-format${osPlatform === 'win32' ? '.exe' : ''}`,
-  );
-
-  if (!existsSync(clangFormatPath))
-    throw new Error(
-      `No executable found for '${osPlatform}(OS platform)-${architecture}(architecture)'\nSee supported OS platform and architecture lists of clang-format-node in README.md`,
-    );
-
-  return clangFormatPath;
-};
diff --git a/packages/clang-format-node/src/index.js b/packages/clang-format-node/src/index.js
index 1c351c4..395701d 100644
--- a/packages/clang-format-node/src/index.js
+++ b/packages/clang-format-node/src/index.js
@@ -1,26 +1,7 @@
-#!/usr/bin/env node
-// The shebang line `#!/usr/bin/env node` ensures the script runs with the correct Node.js interpreter across different environments.
+const { clangFormatPath } = require('./utils/clangFormatPath');
+const { getClangFormatPath } = require('./utils/getClangFormatPath');
 
-const { platform, arch } = require('os');
-const { spawn } = require('child_process');
-const getClangFormatPath = require('./getClangFormatPath');
-
-const OS_PLATFORM = platform();
-const ARCHITECTURE = arch();
-
-try {
-  const spawned = spawn(
-    getClangFormatPath(OS_PLATFORM, ARCHITECTURE),
-    process.argv.slice(2),
-    {
-      stdio: 'inherit',
-    },
-  );
-
-  // Terminate the parent process after the child process has completed.
-  spawned.on('close', process.exit);
-} catch (error) {
-  // eslint-disable-next-line no-console
-  console.error(error.message);
-  process.exit(1);
-}
+module.exports = {
+  clangFormatPath,
+  getClangFormatPath,
+};
diff --git a/packages/clang-format-node/src/index.test.js b/packages/clang-format-node/src/index.test.js
new file mode 100644
index 0000000..e283b0d
--- /dev/null
+++ b/packages/clang-format-node/src/index.test.js
@@ -0,0 +1,13 @@
+const { ok } = require('node:assert');
+const { describe, it } = require('node:test');
+
+const { clangFormatPath, getClangFormatPath } = require('./index');
+
+describe('index ok testing', () => {
+  it('clangFormatPath should be imported correctly', () => {
+    ok(clangFormatPath);
+  });
+  it('getClangFormatPath should be imported correctly', () => {
+    ok(getClangFormatPath);
+  });
+});
diff --git a/packages/clang-format-node/src/utils/clangFormatPath.js b/packages/clang-format-node/src/utils/clangFormatPath.js
new file mode 100644
index 0000000..6282ae0
--- /dev/null
+++ b/packages/clang-format-node/src/utils/clangFormatPath.js
@@ -0,0 +1,12 @@
+const { platform, arch } = require('os');
+
+const { getClangFormatPath } = require('./getClangFormatPath');
+
+/**
+ * The ABSOLUTE path to the `clang-format` executable binary based on the OS platform and architecture.
+ */
+const clangFormatPath = getClangFormatPath(platform(), arch());
+
+module.exports = {
+  clangFormatPath,
+};
diff --git a/packages/clang-format-node/src/utils/clangFormatPath.test.js b/packages/clang-format-node/src/utils/clangFormatPath.test.js
new file mode 100644
index 0000000..7c6ac3f
--- /dev/null
+++ b/packages/clang-format-node/src/utils/clangFormatPath.test.js
@@ -0,0 +1,12 @@
+const { strictEqual } = require('node:assert');
+const { platform, arch } = require('node:os');
+const { describe, it } = require('node:test');
+
+const { clangFormatPath } = require('./clangFormatPath');
+const { getClangFormatPath } = require('./getClangFormatPath');
+
+describe('clangFormatPath strictEqual testing', () => {
+  it('clangFormatPath === getClangFormatPath(platform(), arch())', () => {
+    strictEqual(clangFormatPath, getClangFormatPath(platform(), arch()));
+  });
+});
diff --git a/packages/clang-format-node/src/utils/getClangFormatPath.js b/packages/clang-format-node/src/utils/getClangFormatPath.js
new file mode 100644
index 0000000..8759eab
--- /dev/null
+++ b/packages/clang-format-node/src/utils/getClangFormatPath.js
@@ -0,0 +1,35 @@
+const { existsSync } = require('fs');
+const { resolve } = require('path');
+
+/**
+ * Returns the ABSOLUTE path to the `clang-format` executable binary based on the OS platform and architecture.
+ *
+ * The possible combinations are `darwin-arm64`, `darwin-x64`, `linux-arm`, `linux-arm64`, `linux-ppc64`, `linux-s390x`, `linux-x64`, `win32-x64`.
+ *
+ * Throws an error if the executable is not found.
+ *
+ * @param {string} osPlatform The current operating system platform. (e.g., `darwin`, `linux`, `win32`)
+ * @param {string} architecture The current system architecture. (e.g., `arm`, `arm64`, `ppc64`, `s390x`, `x64`)
+ * @returns {string} The ABSOLUTE path to the `clang-format` executable binary.
+ * @throws `Error` Throws an error if the executable binary is not found for the specified OS platform and architecture.
+ */
+function getClangFormatPath(osPlatform, architecture) {
+  const clangFormatPath = resolve(
+    __dirname,
+    `..`,
+    `bin`,
+    `cfn-${osPlatform}-${architecture}`,
+    `clang-format${osPlatform === 'win32' ? '.exe' : ''}`,
+  );
+
+  if (!existsSync(clangFormatPath))
+    throw new Error(
+      `No executable found for '${osPlatform}(OS platform)-${architecture}(architecture)'\nThe possible combinations are 'darwin-arm64', 'darwin-x64', 'linux-arm', 'linux-arm64', 'linux-ppc64', 'linux-s390x', 'linux-x64', 'win32-x64'`,
+    );
+
+  return clangFormatPath;
+}
+
+module.exports = {
+  getClangFormatPath,
+};
diff --git a/packages/clang-format-node/tests/getClangFormatPath.spec.js b/packages/clang-format-node/src/utils/getClangFormatPath.test.js
similarity index 64%
rename from packages/clang-format-node/tests/getClangFormatPath.spec.js
rename to packages/clang-format-node/src/utils/getClangFormatPath.test.js
index dc43264..1a9be39 100644
--- a/packages/clang-format-node/tests/getClangFormatPath.spec.js
+++ b/packages/clang-format-node/src/utils/getClangFormatPath.test.js
@@ -1,9 +1,16 @@
-const { doesNotThrow, throws } = require('assert');
-const getClangFormatPath = require('../src/getClangFormatPath');
+const { doesNotThrow, throws } = require('node:assert');
+const { describe, it } = require('node:test');
 
-// See possible values in https://nodejs.org/api/os.html#osplatform
+const { getClangFormatPath } = require('./getClangFormatPath');
+
+/**
+ * See possible values in {@link https://nodejs.org/api/os.html#osplatform}.
+ */
 const osPlatforms = ['aix', 'darwin', 'freebsd', 'linux', 'openbsd', 'sunos', 'win32'];
-// See possible values in https://nodejs.org/api/os.html#osarch
+
+/**
+ * See possible values in {@link https://nodejs.org/api/os.html#osarch}.
+ */
 const architectures = [
   'arm',
   'arm64',
@@ -18,15 +25,18 @@ const architectures = [
   's390x',
   'x64',
 ];
+
+/**
+ * The possible combinations are `darwin-arm64`, `darwin-x64`, `linux-arm`, `linux-arm64`, `linux-ppc64`, `linux-s390x`, `linux-x64`, `win32-x64`.
+ *
+ * See {@link getClangFormatPath}.
+ */
 const allowed = {
   darwin: ['arm64', 'x64'],
   linux: ['arm', 'arm64', 'ppc64', 's390x', 'x64'],
   win32: ['x64'],
 };
 
-/**
- * Tests for the `getClangFormatPath`
- */
 describe('getClangFormatPath doesNotThrow and throws testing', () => {
   osPlatforms.forEach(osPlatform => {
     architectures.forEach(architecture => {