     
     class func generateTestsSource(testSpec: TestSpec, language: Language) -> String {
         
+        let testClassIdentifier = "\(testSpec.namespace)_\(testSpec.testName)"
+        let inputStructName = "\(testClassIdentifier)Input"
+        let outputStructName = "\(testClassIdentifier)Output"
+
         // Header
         var source: String = ""
         source.append(

        
        source.append(" */\n") // TODO: Add input test.md

        // Imports
        source.append(
            "import XCTest\n" +

            "}\n"
        )
        
        return source
    }
}
