diff --git a/Sources/ResgenSwift/Images/Generator/XcassetsGenerator.swift b/Sources/ResgenSwift/Images/Generator/XcassetsGenerator.swift
index 6d55599..fec56e7 100644
--- a/Sources/ResgenSwift/Images/Generator/XcassetsGenerator.swift
+++ b/Sources/ResgenSwift/Images/Generator/XcassetsGenerator.swift
@@ -119,7 +119,7 @@ class XcassetsGenerator {
             }
             
             // Write Content.json
-            let imagesetContentJson = parsedImage.contentJson
+            guard let imagesetContentJson = parsedImage.contentJson else { return }
             let contentJsonFilePath = "\(imagesetPath)/Contents.json"
             
             let contentJsonFilePathURL = URL(fileURLWithPath: contentJsonFilePath)
diff --git a/Sources/ResgenSwift/Images/Model/ImageContent.swift b/Sources/ResgenSwift/Images/Model/ImageContent.swift
new file mode 100644
index 0000000..55847d8
--- /dev/null
+++ b/Sources/ResgenSwift/Images/Model/ImageContent.swift
@@ -0,0 +1,32 @@
+//
+//  ImageContent.swift
+//
+//
+//  Created by Quentin Bandera on 19/04/2024.
+//
+
+import Foundation
+
+struct AssetContent: Codable, Equatable {
+    let images: [AssetImageDescription]
+    let info: AssetInfo
+
+    static func == (lhs: AssetContent, rhs: AssetContent) -> Bool {
+        guard lhs.images.count == rhs.images.count else { return false }
+        let lhsImages = lhs.images.sorted(by: { $0.scale < $1.scale })
+        let rhsImages = rhs.images.sorted(by: { $0.scale < $1.scale })
+
+        return lhsImages == rhsImages
+    }
+}
+
+struct AssetImageDescription: Codable, Equatable {
+    let idiom: String
+    let scale: String
+    let filename: String
+}
+
+struct AssetInfo: Codable, Equatable {
+    let version: Int
+    let author: String
+}
diff --git a/Sources/ResgenSwift/Images/Model/ParsedImage.swift b/Sources/ResgenSwift/Images/Model/ParsedImage.swift
index 2c42916..096c5c0 100644
--- a/Sources/ResgenSwift/Images/Model/ParsedImage.swift
+++ b/Sources/ResgenSwift/Images/Model/ParsedImage.swift
@@ -42,34 +42,45 @@ struct ParsedImage {
     
     // MARK: - Assets
     
-    var contentJson: String {
-        """
-        {
-          "images" : [
-            {
-              "idiom" : "universal",
-              "scale" : "1x",
-              "filename" : "\(name).\(XcassetsGenerator.outputImageExtension)"
-            },
-            {
-              "idiom" : "universal",
-              "scale" : "2x",
-              "filename" : "\(name)@2x.\(XcassetsGenerator.outputImageExtension)"
-            },
-            {
-              "idiom" : "universal",
-              "scale" : "3x",
-              "filename" : "\(name)@3x.\(XcassetsGenerator.outputImageExtension)"
-            }
-          ],
-          "info" : {
-            "version" : 1,
-            "author" : "ResgenSwift-Imagium"
-          }
+    var contentJson: String? {
+        let encoder = JSONEncoder()
+        encoder.outputFormatting = .prettyPrinted
+        
+        guard let data = try? encoder.encode(imageContent) else {
+            let error = ImagesError.writeFile("Contents.json", "Error encoding json file")
+            print(error.description)
+            Images.exit(withError: error)
         }
-        """
+
+        return String(data: data, encoding: .utf8)
     }
-    
+
+    var imageContent: AssetContent {
+        return AssetContent(
+            images: [
+                AssetImageDescription(
+                    idiom: "universal",
+                    scale: "1x",
+                    filename: "\(name).\(XcassetsGenerator.outputImageExtension)"
+                ),
+                AssetImageDescription(
+                    idiom: "universal",
+                    scale: "2x",
+                    filename: "\(name)@2x.\(XcassetsGenerator.outputImageExtension)"
+                ),
+                AssetImageDescription(
+                    idiom: "universal",
+                    scale: "3x",
+                    filename: "\(name)@3x.\(XcassetsGenerator.outputImageExtension)"
+                )
+            ],
+            info: AssetInfo(
+                version: 1,
+                author: "ResgenSwift-Imagium"
+            )
+        )
+    }
+
     // MARK: - Extension property
     
     func getImageProperty(isStatic: Bool, isSwiftUI: Bool) -> String {
diff --git a/Tests/ResgenSwiftTests/Images/ParsedImageTests.swift b/Tests/ResgenSwiftTests/Images/ParsedImageTests.swift
index b4a8093..0fea3d8 100644
--- a/Tests/ResgenSwiftTests/Images/ParsedImageTests.swift
+++ b/Tests/ResgenSwiftTests/Images/ParsedImageTests.swift
@@ -127,35 +127,33 @@ final class ParsedImageTests: XCTestCase {
                                       height: 10)
         
         // When
-        let property = parsedImage.contentJson
-        
+        let property = parsedImage.imageContent
+
         // Expect
-        let expect = """
-        {
-          "images" : [
-            {
-              "idiom" : "universal",
-              "scale" : "1x",
-              "filename" : "\(imageName).\(XcassetsGenerator.outputImageExtension)"
-            },
-            {
-              "idiom" : "universal",
-              "scale" : "2x",
-              "filename" : "\(imageName)@2x.\(XcassetsGenerator.outputImageExtension)"
-            },
-            {
-              "idiom" : "universal",
-              "scale" : "3x",
-              "filename" : "\(imageName)@3x.\(XcassetsGenerator.outputImageExtension)"
-            }
-          ],
-          "info" : {
-            "version" : 1,
-            "author" : "ResgenSwift-Imagium"
-          }
-        }
-        """
-        
-        XCTAssertEqual(property.adaptForXCTest(), expect.adaptForXCTest())
+        let expect = AssetContent(
+            images: [
+                AssetImageDescription(
+                    idiom: "universal",
+                    scale: "1x",
+                    filename: "\(parsedImage.name).\(XcassetsGenerator.outputImageExtension)"
+                ),
+                AssetImageDescription(
+                    idiom: "universal",
+                    scale: "2x",
+                    filename: "\(parsedImage.name)@2x.\(XcassetsGenerator.outputImageExtension)"
+                ),
+                AssetImageDescription(
+                    idiom: "universal",
+                    scale: "3x",
+                    filename: "\(parsedImage.name)@3x.\(XcassetsGenerator.outputImageExtension)"
+                )
+            ],
+            info: AssetInfo(
+                version: 1,
+                author: "ResgenSwift-Imagium"
+            )
+        )
+
+        XCTAssertEqual(property, expect)
     }
 }