fix csharp tests

tests/Generator/resource/csharp/csharp_complex.cs

@@ -22,7 +22,7 @@ public class CommonType
 /// <summary>
 /// Represents an any type
 /// </summary>
-public class AnyType extends CommonType
+public class AnyType : CommonType
 {
     [JsonPropertyName("type")]
     public string Type { get; set; }
@@ -33,7 +33,7 @@ public class AnyType extends CommonType
 /// <summary>
 /// Represents an array type. An array type contains an ordered list of a specific type
 /// </summary>
-public class ArrayType extends CommonType
+public class ArrayType : CommonType
 {
     [JsonPropertyName("type")]
     public string Type { get; set; }
@@ -50,7 +50,7 @@ public class ArrayType extends CommonType
 /// <summary>
 /// Represents a scalar type
 /// </summary>
-public class ScalarType extends CommonType
+public class ScalarType : CommonType
 {
     [JsonPropertyName("format")]
     public string Format { get; set; }
@@ -65,7 +65,7 @@ public class ScalarType extends CommonType
 /// <summary>
 /// Represents a boolean type
 /// </summary>
-public class BooleanType extends ScalarType
+public class BooleanType : ScalarType
 {
     [JsonPropertyName("type")]
     public string Type { get; set; }
@@ -114,7 +114,7 @@ public class IntersectionType
 /// <summary>
 /// Represents a map type. A map type contains variable key value entries of a specific type
 /// </summary>
-public class MapType extends CommonType
+public class MapType : CommonType
 {
     [JsonPropertyName("type")]
     public string Type { get; set; }
@@ -131,7 +131,7 @@ public class MapType extends CommonType
 /// <summary>
 /// Represents a number type (contains also integer)
 /// </summary>
-public class NumberType extends ScalarType
+public class NumberType : ScalarType
 {
     [JsonPropertyName("type")]
     public string Type { get; set; }
@@ -166,7 +166,7 @@ public class ReferenceType
 /// <summary>
 /// Represents a string type
 /// </summary>
-public class StringType extends ScalarType
+public class StringType : ScalarType
 {
     [JsonPropertyName("type")]
     public string Type { get; set; }
@@ -184,7 +184,7 @@ public class StringType extends ScalarType
 /// <summary>
 /// Represents a struct type. A struct type contains a fix set of defined properties
 /// </summary>
-public class StructType extends CommonType
+public class StructType : CommonType
 {
     [JsonPropertyName("$final")]
     public bool Final { get; set; }

tests/Generator/resource/csharp/csharp_import.cs

@@ -8,6 +8,6 @@ public class Import
 }
 
 using System.Text.Json.Serialization;
-public class MyMap extends Student
+public class MyMap : Student
 {
 }

tests/Generator/resource/csharp/csharp_import_ns.cs

@@ -10,6 +10,6 @@ public class Import
 
 using System.Text.Json.Serialization;
 namespace Foo.Bar;
-public class MyMap extends My.Import.Student
+public class MyMap : My.Import.Student
 {
 }

tests/Generator/resource/csharp/csharp_oop.cs

@@ -6,7 +6,7 @@ public class Human
 }
 
 using System.Text.Json.Serialization;
-public class Student extends Human
+public class Student : Human
 {
     [JsonPropertyName("matricleNumber")]
     public string MatricleNumber { get; set; }

tests/Generator/resource/csharp/csharp_union.cs

@@ -6,14 +6,14 @@ public class Creature
 }
 
 using System.Text.Json.Serialization;
-public class Human extends Creature
+public class Human : Creature
 {
     [JsonPropertyName("firstName")]
     public string FirstName { get; set; }
 }
 
 using System.Text.Json.Serialization;
-public class Animal extends Creature
+public class Animal : Creature
 {
     [JsonPropertyName("nickname")]
     public string Nickname { get; set; }