diff --git a/tests/10_scrypt_hash/test.js b/tests/10_scrypt_hash/test.js
new file mode 100644
index 0000000..2c7e62b
--- /dev/null
+++ b/tests/10_scrypt_hash/test.js
@@ -0,0 +1,33 @@
+export default {
+  functionName: 'hashPassword',
+  prompt: `// Write an async JavaScript function 'hashPassword' that hashes a password using the scrypt key derivation function.
+// - The function must accept a password string and a salt string (both as regular strings, not Uint8Array).
+// - You MUST use dynamic import() to load the 'scrypt-js' library from a CDN.
+// - Convert the password and salt strings to Uint8Array using TextEncoder before passing to scrypt.
+// - Use these scrypt parameters: N=1024, r=8, p=1, dkLen=32 (these are relatively fast parameters for testing).
+// - The scrypt function from scrypt-js returns a Promise that resolves to a Uint8Array.
+// - Convert the resulting Uint8Array hash to a hexadecimal string.
+// - Return the hexadecimal hash string (lowercase).
+// - Handle the async nature of scrypt properly using await.`,
+  runTest: async (hashPassword) => {
+    const assert = {
+      strictEqual: (a, e, m) => { if (a !== e) throw new Error(m || `FAIL: ${a} !== ${e}`) },
+      ok: (v, m) => { if (!v) throw new Error(m) },
+    };
+    
+    const password = 'testPassword123';
+    const salt = 'randomSalt456';
+    
+    const hash = await hashPassword(password, salt);
+    
+    assert.ok(typeof hash === 'string', 'Test Failed: Hash should be a string.');
+    assert.strictEqual(hash.length, 64, 'Test Failed: Hash should be 64 hex characters (32 bytes).');
+    assert.ok(/^[0-9a-f]{64}$/.test(hash), 'Test Failed: Hash should be lowercase hexadecimal.');
+    
+    const hash2 = await hashPassword(password, salt);
+    assert.strictEqual(hash, hash2, 'Test Failed: Same inputs should produce same hash.');
+    
+    const hash3 = await hashPassword(password, 'differentSalt');
+    assert.ok(hash !== hash3, 'Test Failed: Different salts should produce different hashes.');
+  }
+};