From f3acefc19c055d09ceb6d3a2407c821abac17cc1 Mon Sep 17 00:00:00 2001
From: Rhyad Zergane <rhyad.zergane1@digital.homeoffice.gov.uk>
Date: Fri, 18 Oct 2024 09:04:16 +0100
Subject: [PATCH] FOR-469: Add support for gds word and character counter

* Add validator for max and min word count
---
 lib/validation/validators.js       |  6 ++++++
 test/validation/spec.validators.js | 31 ++++++++++++++++++++++++++++++
 2 files changed, 37 insertions(+)

diff --git a/lib/validation/validators.js b/lib/validation/validators.js
index a747961..9330b5a 100644
--- a/lib/validation/validators.js
+++ b/lib/validation/validators.js
@@ -35,6 +35,12 @@ let validators = {
         return validators.string(value) && (value === '' || value.length <= length);
     },
 
+    maxwords(text, length) {
+        if (!validators.string(text)) return false;
+        const words = text.match(/\S+/g) || [];
+        return words.length <= length;
+    },
+
     exactlength(value, length) {
         return validators.string(value) && (value === '' || value.length === length);
     },
diff --git a/test/validation/spec.validators.js b/test/validation/spec.validators.js
index c0809d1..fb7565c 100644
--- a/test/validation/spec.validators.js
+++ b/test/validation/spec.validators.js
@@ -163,6 +163,37 @@ describe('validators', () => {
 
     });
 
+    describe('maxwords', () => {
+
+        describe('invalid values', () => {
+            let inputs = [
+                [undefined, 1],
+                [100, 10],
+                ['asdfasdfasdf', 0],
+                ['asdf asdf asdf asdf asdf asdf asdf asdf', 3]
+            ];
+            _.each(inputs, i => {
+                it(testName(i), () => {
+                    validators.maxwords.apply(null, i).should.not.be.ok;
+                });
+            });
+        });
+
+        describe('valid values', () => {
+            let inputs = [
+                ['', 0],
+                ['asdfasdf asdf asdf asdf asdf', 10],
+                ['123', 4]
+            ];
+            _.each(inputs, i => {
+                it(testName(i), () => {
+                    validators.maxwords.apply(null, i).should.be.ok;
+                });
+            });
+        });
+
+    });
+
     describe('exactlength', () => {
 
         describe('invalid values', () => {