✅ Update tests

src/Tests/UnitTestsModel/LargeImageTest.cs

@@ -1,3 +1,4 @@
+using Model;
 using Xunit;
 
 namespace Model.Tests
@@ -28,5 +29,76 @@ namespace Model.Tests
 
             Assert.False(result);
         }
+        
+        [Fact]
+        public void Equals_WithNull_ReturnsFalse()
+        {
+            LargeImage image = new LargeImage("base64");
+
+            var result = image.Equals(null);
+
+            
+            Assert.False(result);
+        }
+
+        [Fact]
+        public void Equals_WithSameReference_ReturnsTrue()
+        {
+            LargeImage image = new LargeImage("base64");
+
+            var result = image.Equals(image);
+
+            
+            Assert.True(result);
+        }
+
+        [Fact]
+        public void Equals_WithDifferentType_ReturnsFalse()
+        {
+            LargeImage image = new LargeImage("base64");
+            var obj = new object();
+
+            var result = image.Equals(obj);
+
+            
+            Assert.False(result);
+        }
+
+        [Fact]
+        public void Equals_WithDifferentBase64_ReturnsFalse()
+        {
+            LargeImage image1 = new LargeImage("base64");
+            LargeImage image2 = new LargeImage("differentBase64");
+
+            var result = image1.Equals(image2);
+
+            
+            Assert.False(result);
+        }
+
+        [Fact]
+        public void Equals_WithSameBase64_ReturnsTrue()
+        {
+            LargeImage image1 = new LargeImage("base64");
+            LargeImage image2 = new LargeImage("base64");
+
+            var result = image1.Equals(image2);
+
+            
+            Assert.True(result);
+        }
+
+        [Fact]
+        public void GetHashCode_ReturnsSameHashCode_ForSameBase64()
+        {
+            string base64 = "abcdefghij";
+            LargeImage largeImage1 = new LargeImage(base64);
+            LargeImage largeImage2 = new LargeImage(base64);
+
+            int hashCode1 = largeImage1.GetHashCode();
+            int hashCode2 = largeImage2.GetHashCode();
+
+            Assert.Equal(hashCode1, hashCode2);
+        }
     }
-}
+}