From af73325840f7cfda9b55eb5ee605f6c40f5a0d12 Mon Sep 17 00:00:00 2001
From: EC2 Default User <ec2-user@ip-172-31-27-145.eu-west-2.compute.internal>
Date: Wed, 27 Aug 2025 08:28:11 +0000
Subject: [PATCH] Added tests

---
 tests/operations/index.mjs       |  1 +
 tests/operations/tests/Ngram.mjs | 34 ++++++++++++++++++++++++++++++++
 2 files changed, 35 insertions(+)
 create mode 100644 tests/operations/tests/Ngram.mjs

diff --git a/tests/operations/index.mjs b/tests/operations/index.mjs
index f147e9e7..7487480f 100644
--- a/tests/operations/index.mjs
+++ b/tests/operations/index.mjs
@@ -114,6 +114,7 @@ import "./tests/MS.mjs";
 import "./tests/MultipleBombe.mjs";
 import "./tests/MurmurHash3.mjs";
 import "./tests/NetBIOS.mjs";
+import "./tests/Ngram.mjs";
 import "./tests/NormaliseUnicode.mjs";
 import "./tests/NTLM.mjs";
 import "./tests/OTP.mjs";
diff --git a/tests/operations/tests/Ngram.mjs b/tests/operations/tests/Ngram.mjs
new file mode 100644
index 00000000..97af9d12
--- /dev/null
+++ b/tests/operations/tests/Ngram.mjs
@@ -0,0 +1,34 @@
+/**
+ * Ngram tests.
+ *
+ * @author jg42526
+ *
+ * @copyright Crown Copyright 2017
+ * @license Apache-2.0
+ */
+import TestRegister from "../../lib/TestRegister.mjs";
+
+TestRegister.addTests([
+    {
+        name: "Ngram 3",
+        input: "hello",
+        expectedOutput: "hel,ell,llo",
+        recipeConfig: [
+            {
+                op: "N-gram",
+                args: ["3", ","],
+            },
+        ],
+    },
+    {
+        name: "Ngram longer than input",
+        input: "hello",
+        expectedOutput: "",
+        recipeConfig: [
+            {
+                op: "N-gram",
+                args: ["6", ","],
+            },
+        ],
+    },
+]);