Add ToGeohash and FromGeohash operations

test/tests/operations/ToGeohash.mjs

@@ -0,0 +1,34 @@
+/**
+ * To Geohash tests
+ *
+ * @author gchq77703
+ *
+ * @copyright Crown Copyright 2018
+ * @license Apache-2.0
+ */
+import TestRegister from "../../TestRegister";
+
+TestRegister.addTests([
+    {
+        name: "To Geohash",
+        input: "37.8324,112.5584\n37.9324,-112.2584",
+        expectedOutput: "ww8p1r4t8\n9w8pv3ruj",
+        recipeConfig: [
+            {
+                op: "To Geohash",
+                args: [9],
+            },
+        ],
+    },
+    {
+        name: "To Geohash",
+        input: "37.8324,112.5584\n\n\n",
+        expectedOutput: "ww8p1r4t8\n\n\n",
+        recipeConfig: [
+            {
+                op: "To Geohash",
+                args: [9],
+            },
+        ],
+    },
+]);