made default strings use string literal (#15049)

modules/openapi-generator/src/main/resources/csharp-netcore/Configuration.mustache

@@ -145,7 +145,7 @@ namespace {{packageName}}.Client
                                 {
                                     "{{{name}}}", new Dictionary<string, object> {
                                         {"description", "{{{description}}}{{^description}}No description provided{{/description}}"},
-                                        {"default_value", "{{{defaultValue}}}"},
+                                        {"default_value", {{#isString}}{{^isEnum}}@{{/isEnum}}{{/isString}}"{{{defaultValue}}}"},
                                         {{#enumValues}}
                                         {{#-first}}
                                         {

modules/openapi-generator/src/main/resources/csharp-netcore/libraries/generichost/ModelSignature.mustache

@@ -1 +1 @@
-{{#model.allVars}}{{>PropertyDataType}} {{#lambda.camelcase_param}}{{name}}{{/lambda.camelcase_param}}{{#defaultValue}} = {{^isDateTime}}{{{defaultValue}}}{{/isDateTime}}{{#isDateTime}}default{{/isDateTime}}{{/defaultValue}}{{^defaultValue}}{{#isNullable}} = default{{/isNullable}}{{/defaultValue}}  {{/model.allVars}}
+{{#model.allVars}}{{>PropertyDataType}} {{#lambda.camelcase_param}}{{name}}{{/lambda.camelcase_param}}{{#defaultValue}} = {{^isDateTime}}{{#isString}}{{^isEnum}}@{{/isEnum}}{{/isString}}{{{defaultValue}}}{{/isDateTime}}{{#isDateTime}}default{{/isDateTime}}{{/defaultValue}}{{^defaultValue}}{{#isNullable}} = default{{/isNullable}}{{/defaultValue}}  {{/model.allVars}}

modules/openapi-generator/src/main/resources/csharp-netcore/modelGeneric.mustache

@@ -134,7 +134,7 @@
     {{#hasOnlyReadOnly}}
         [JsonConstructorAttribute]
     {{/hasOnlyReadOnly}}
-        public {{classname}}({{#readWriteVars}}{{{datatypeWithEnum}}}{{#isEnum}}{{^isContainer}}{{^required}}?{{/required}}{{/isContainer}}{{/isEnum}} {{#lambda.camelcase_param}}{{name}}{{/lambda.camelcase_param}} = {{#defaultValue}}{{^isDateTime}}{{{defaultValue}}}{{/isDateTime}}{{#isDateTime}}default({{{datatypeWithEnum}}}){{/isDateTime}}{{/defaultValue}}{{^defaultValue}}default({{{datatypeWithEnum}}}{{#isEnum}}{{^isContainer}}{{^required}}?{{/required}}{{/isContainer}}{{/isEnum}}){{/defaultValue}}{{^-last}}, {{/-last}}{{/readWriteVars}}){{#parent}} : base({{#parentVars}}{{#lambda.camelcase_param}}{{name}}{{/lambda.camelcase_param}}{{^-last}}, {{/-last}}{{/parentVars}}){{/parent}}
+        public {{classname}}({{#readWriteVars}}{{{datatypeWithEnum}}}{{#isEnum}}{{^isContainer}}{{^required}}?{{/required}}{{/isContainer}}{{/isEnum}} {{#lambda.camelcase_param}}{{name}}{{/lambda.camelcase_param}} = {{#defaultValue}}{{^isDateTime}}{{#isString}}{{^isEnum}}@{{/isEnum}}{{/isString}}{{{defaultValue}}}{{/isDateTime}}{{#isDateTime}}default({{{datatypeWithEnum}}}){{/isDateTime}}{{/defaultValue}}{{^defaultValue}}default({{{datatypeWithEnum}}}{{#isEnum}}{{^isContainer}}{{^required}}?{{/required}}{{/isContainer}}{{/isEnum}}){{/defaultValue}}{{^-last}}, {{/-last}}{{/readWriteVars}}){{#parent}} : base({{#parentVars}}{{#lambda.camelcase_param}}{{name}}{{/lambda.camelcase_param}}{{^-last}}, {{/-last}}{{/parentVars}}){{/parent}}
         {
             {{#vars}}
             {{^isInherited}}
@@ -178,7 +178,7 @@
             {{^conditionalSerialization}}
             {{^vendorExtensions.x-csharp-value-type}}
             // use default value if no "{{#lambda.camelcase_param}}{{name}}{{/lambda.camelcase_param}}" provided
-            this.{{name}} = {{#lambda.camelcase_param}}{{name}}{{/lambda.camelcase_param}} ?? {{{defaultValue}}};
+            this.{{name}} = {{#lambda.camelcase_param}}{{name}}{{/lambda.camelcase_param}} ?? {{#isString}}@{{/isString}}{{{defaultValue}}};
             {{/vendorExtensions.x-csharp-value-type}}
             {{#vendorExtensions.x-csharp-value-type}}
             this.{{name}} = {{#lambda.camelcase_param}}{{name}}{{/lambda.camelcase_param}};

modules/openapi-generator/src/test/resources/3_0/csharp/petstore-with-fake-endpoints-models-for-testing-with-http-signature.yaml

@@ -2259,4 +2259,13 @@ components:
       type: object
       properties:
         value:
-          type: string
+          type: string
+    LiteralStringClass:
+      type: object
+      properties:
+        escapedLiteralString:
+          type: string
+          default: C:\\Users\\username
+        unescapedLiteralString:
+          type: string
+          default: C:\Users\username

samples/client/petstore/csharp-netcore/OpenAPIClient-ConditionalSerialization/.openapi-generator/FILES

@@ -51,6 +51,7 @@ docs/HasOnlyReadOnly.md
 docs/HealthCheckResult.md
 docs/IsoscelesTriangle.md
 docs/List.md
+docs/LiteralStringClass.md
 docs/Mammal.md
 docs/MapTest.md
 docs/MixedPropertiesAndAdditionalPropertiesClass.md
@@ -167,6 +168,7 @@ src/Org.OpenAPITools/Model/HasOnlyReadOnly.cs
 src/Org.OpenAPITools/Model/HealthCheckResult.cs
 src/Org.OpenAPITools/Model/IsoscelesTriangle.cs
 src/Org.OpenAPITools/Model/List.cs
+src/Org.OpenAPITools/Model/LiteralStringClass.cs
 src/Org.OpenAPITools/Model/Mammal.cs
 src/Org.OpenAPITools/Model/MapTest.cs
 src/Org.OpenAPITools/Model/MixedPropertiesAndAdditionalPropertiesClass.cs

samples/client/petstore/csharp-netcore/OpenAPIClient-ConditionalSerialization/README.md

@@ -193,6 +193,7 @@ Class | Method | HTTP request | Description
  - [Model.HealthCheckResult](docs/HealthCheckResult.md)
  - [Model.IsoscelesTriangle](docs/IsoscelesTriangle.md)
  - [Model.List](docs/List.md)
+ - [Model.LiteralStringClass](docs/LiteralStringClass.md)
  - [Model.Mammal](docs/Mammal.md)
  - [Model.MapTest](docs/MapTest.md)
  - [Model.MixedPropertiesAndAdditionalPropertiesClass](docs/MixedPropertiesAndAdditionalPropertiesClass.md)

samples/client/petstore/csharp-netcore/OpenAPIClient-ConditionalSerialization/api/openapi.yaml

@@ -2186,6 +2186,15 @@ components:
         value:
           type: string
       type: object
+    LiteralStringClass:
+      properties:
+        escapedLiteralString:
+          default: C:\\Users\\username
+          type: string
+        unescapedLiteralString:
+          default: C:\Users\username
+          type: string
+      type: object
     _foo_get_default_response:
       example:
         string:

samples/client/petstore/csharp-netcore/OpenAPIClient-ConditionalSerialization/docs/LiteralStringClass.md

@@ -0,0 +1,11 @@
+# Org.OpenAPITools.Model.LiteralStringClass
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**EscapedLiteralString** | **string** |  | [optional] [default to "C:\\Users\\username"]
+**UnescapedLiteralString** | **string** |  | [optional] [default to "C:\Users\username"]
+
+[[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
+

samples/client/petstore/csharp-netcore/OpenAPIClient-ConditionalSerialization/src/Org.OpenAPITools.Test/Model/LiteralStringClassTests.cs

@@ -0,0 +1,77 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using Xunit;
+
+using System;
+using System.Linq;
+using System.IO;
+using System.Collections.Generic;
+using Org.OpenAPITools.Model;
+using Org.OpenAPITools.Client;
+using System.Reflection;
+using Newtonsoft.Json;
+
+namespace Org.OpenAPITools.Test.Model
+{
+    /// <summary>
+    ///  Class for testing LiteralStringClass
+    /// </summary>
+    /// <remarks>
+    /// This file is automatically generated by OpenAPI Generator (https://openapi-generator.tech).
+    /// Please update the test case below to test the model.
+    /// </remarks>
+    public class LiteralStringClassTests : IDisposable
+    {
+        // TODO uncomment below to declare an instance variable for LiteralStringClass
+        //private LiteralStringClass instance;
+
+        public LiteralStringClassTests()
+        {
+            // TODO uncomment below to create an instance of LiteralStringClass
+            //instance = new LiteralStringClass();
+        }
+
+        public void Dispose()
+        {
+            // Cleanup when everything is done.
+        }
+
+        /// <summary>
+        /// Test an instance of LiteralStringClass
+        /// </summary>
+        [Fact]
+        public void LiteralStringClassInstanceTest()
+        {
+            // TODO uncomment below to test "IsType" LiteralStringClass
+            //Assert.IsType<LiteralStringClass>(instance);
+        }
+
+
+        /// <summary>
+        /// Test the property 'EscapedLiteralString'
+        /// </summary>
+        [Fact]
+        public void EscapedLiteralStringTest()
+        {
+            // TODO unit test for the property 'EscapedLiteralString'
+        }
+        /// <summary>
+        /// Test the property 'UnescapedLiteralString'
+        /// </summary>
+        [Fact]
+        public void UnescapedLiteralStringTest()
+        {
+            // TODO unit test for the property 'UnescapedLiteralString'
+        }
+
+    }
+
+}

samples/client/petstore/csharp-netcore/OpenAPIClient-ConditionalSerialization/src/Org.OpenAPITools/Model/Animal.cs

@@ -49,7 +49,7 @@ protected Animal()
         /// </summary>
         /// <param name="className">className (required).</param>
         /// <param name="color">color (default to &quot;red&quot;).</param>
-        public Animal(string className = default(string), string color = "red")
+        public Animal(string className = default(string), string color = @"red")
         {
             // to ensure "className" is required (not null)
             if (className == null)

samples/client/petstore/csharp-netcore/OpenAPIClient-ConditionalSerialization/src/Org.OpenAPITools/Model/Cat.cs

@@ -48,7 +48,7 @@ protected Cat()
         /// <param name="declawed">declawed.</param>
         /// <param name="className">className (required) (default to &quot;Cat&quot;).</param>
         /// <param name="color">color (default to &quot;red&quot;).</param>
-        public Cat(bool declawed = default(bool), string className = "Cat", string color = "red") : base(className, color)
+        public Cat(bool declawed = default(bool), string className = @"Cat", string color = @"red") : base(className, color)
         {
             this._Declawed = declawed;
             if (this.Declawed != null)

samples/client/petstore/csharp-netcore/OpenAPIClient-ConditionalSerialization/src/Org.OpenAPITools/Model/Category.cs

@@ -45,7 +45,7 @@ protected Category()
         /// </summary>
         /// <param name="id">id.</param>
         /// <param name="name">name (required) (default to &quot;default-name&quot;).</param>
-        public Category(long id = default(long), string name = "default-name")
+        public Category(long id = default(long), string name = @"default-name")
         {
             // to ensure "name" is required (not null)
             if (name == null)

samples/client/petstore/csharp-netcore/OpenAPIClient-ConditionalSerialization/src/Org.OpenAPITools/Model/Dog.cs

@@ -48,7 +48,7 @@ protected Dog()
         /// <param name="breed">breed.</param>
         /// <param name="className">className (required) (default to &quot;Dog&quot;).</param>
         /// <param name="color">color (default to &quot;red&quot;).</param>
-        public Dog(string breed = default(string), string className = "Dog", string color = "red") : base(className, color)
+        public Dog(string breed = default(string), string className = @"Dog", string color = @"red") : base(className, color)
         {
             this._Breed = breed;
             if (this.Breed != null)

samples/client/petstore/csharp-netcore/OpenAPIClient-ConditionalSerialization/src/Org.OpenAPITools/Model/Foo.cs

@@ -36,7 +36,7 @@ public partial class Foo : IEquatable<Foo>, IValidatableObject
         /// Initializes a new instance of the <see cref="Foo" /> class.
         /// </summary>
         /// <param name="bar">bar (default to &quot;bar&quot;).</param>
-        public Foo(string bar = "bar")
+        public Foo(string bar = @"bar")
         {
             this.AdditionalProperties = new Dictionary<string, object>();
         }