From d9102185a4e4bd3f0ea38b583f4f5d9eaee5a998 Mon Sep 17 00:00:00 2001
From: Radymyr <lobodaradymyr@gmail.com>
Date: Wed, 28 Jan 2026 16:19:46 +0200
Subject: [PATCH 1/2] solution

---
 src/isIsogram.test.js | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/src/isIsogram.test.js b/src/isIsogram.test.js
index dfb16184..b32636f4 100644
--- a/src/isIsogram.test.js
+++ b/src/isIsogram.test.js
@@ -6,4 +6,18 @@ describe('isIsogram', () => {
   it(`should be declared`, () => {
     expect(isIsogram).toBeInstanceOf(Function);
   });
+
+  const isIsogramMap = {
+    playgrounds: true,
+    look: false,
+    Adam: false,
+    '': true,
+    Oops: false,
+  };
+
+  for (const key in isIsogramMap) {
+    it(`should ${isIsogramMap[key]} if ${key} passed`, () => {
+      expect(isIsogram(key)).toBe(isIsogramMap[key]);
+    });
+  }
 });

From a67a41be4efb95a49b244e925f0938d679bd2610 Mon Sep 17 00:00:00 2001
From: Radymyr <lobodaradymyr@gmail.com>
Date: Wed, 28 Jan 2026 16:26:11 +0200
Subject: [PATCH 2/2] fix: fixed arguments naming

---
 src/isIsogram.test.js | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)

diff --git a/src/isIsogram.test.js b/src/isIsogram.test.js
index b32636f4..2586a4f1 100644
--- a/src/isIsogram.test.js
+++ b/src/isIsogram.test.js
@@ -1,7 +1,7 @@
-'use strict';
+"use strict";
 
-describe('isIsogram', () => {
-  const { isIsogram } = require('./isIsogram');
+describe("isIsogram", () => {
+  const { isIsogram } = require("./isIsogram");
 
   it(`should be declared`, () => {
     expect(isIsogram).toBeInstanceOf(Function);
@@ -11,13 +11,17 @@ describe('isIsogram', () => {
     playgrounds: true,
     look: false,
     Adam: false,
-    '': true,
+    "": true,
     Oops: false,
   };
 
   for (const key in isIsogramMap) {
-    it(`should ${isIsogramMap[key]} if ${key} passed`, () => {
-      expect(isIsogram(key)).toBe(isIsogramMap[key]);
-    });
+    it(
+      `should ${isIsogramMap[key]} if ${key === "" ? "space" : key} ` +
+        "passed",
+      () => {
+        expect(isIsogram(key)).toBe(isIsogramMap[key]);
+      },
+    );
   }
 });