Add tests for withXml option in Go client generator (OpenAPITools#21913)

* test withXml option

* fix path

Author: wing328

.github/workflows/samples-go-client.yaml

@@ -4,9 +4,11 @@ on:
   push:
     paths:
       - 'samples/openapi3/client/petstore/go/go-petstore-aws-signature/**'
+      - 'samples/openapi3/client/petstore/go-petstore-withXml/**'
   pull_request:
     paths:
       - 'samples/openapi3/client/petstore/go/go-petstore-aws-signature/**'
+      - 'samples/openapi3/client/petstore/go-petstore-withXml/**'
 
 jobs:
   build:
@@ -17,6 +19,7 @@ jobs:
       matrix:
         sample:
           - 'samples/openapi3/client/petstore/go/go-petstore-aws-signature/'
+          - 'samples/openapi3/client/petstore/go-petstore-withXml/'
     steps:
       - uses: actions/checkout@v5
       - uses: actions/setup-go@v6

bin/configs/go-petstore-withXml.yaml

@@ -0,0 +1,9 @@
+generatorName: go
+outputDir: samples/openapi3/client/petstore/go-petstore-withXml
+inputSpec: modules/openapi-generator/src/test/resources/3_0/petstore-addpet-only.yaml
+templateDir: modules/openapi-generator/src/main/resources/go
+additionalProperties:
+  enumClassPrefix: "true"
+  packageName: petstore
+  disallowAdditionalPropertiesIfNotPresent: false
+  withXml: false

samples/openapi3/client/petstore/go-petstore-withXml/.gitignore

@@ -0,0 +1,24 @@
+# Compiled Object files, Static and Dynamic libs (Shared Objects)
+*.o
+*.a
+*.so
+
+# Folders
+_obj
+_test
+
+# Architecture specific extensions/prefixes
+*.[568vq]
+[568vq].out
+
+*.cgo1.go
+*.cgo2.c
+_cgo_defun.c
+_cgo_gotypes.go
+_cgo_export.*
+
+_testmain.go
+
+*.exe
+*.test
+*.prof

samples/openapi3/client/petstore/go-petstore-withXml/.openapi-generator-ignore

@@ -0,0 +1,23 @@
+# OpenAPI Generator Ignore
+# Generated by openapi-generator https://github.com/openapitools/openapi-generator
+
+# Use this file to prevent files from being overwritten by the generator.
+# The patterns follow closely to .gitignore or .dockerignore.
+
+# As an example, the C# client generator defines ApiClient.cs.
+# You can make changes and tell OpenAPI Generator to ignore just this file by uncommenting the following line:
+#ApiClient.cs
+
+# You can match any string of characters against a directory, file or extension with a single asterisk (*):
+#foo/*/qux
+# The above matches foo/bar/qux and foo/baz/qux, but not foo/bar/baz/qux
+
+# You can recursively match patterns against a directory, file or extension with a double asterisk (**):
+#foo/**/qux
+# This matches foo/bar/qux, foo/baz/qux, and foo/bar/baz/qux
+
+# You can also negate patterns with an exclamation (!).
+# For example, you can ignore all files in a docs folder with the file extension .md:
+#docs/*.md
+# Then explicitly reverse the ignore rule for a single file:
+#!docs/README.md

samples/openapi3/client/petstore/go-petstore-withXml/.openapi-generator/FILES

@@ -0,0 +1,19 @@
+.gitignore
+.travis.yml
+README.md
+api/openapi.yaml
+api_pet.go
+client.go
+configuration.go
+docs/Category.md
+docs/Pet.md
+docs/PetAPI.md
+docs/Tag.md
+git_push.sh
+go.mod
+go.sum
+model_category.go
+model_pet.go
+model_tag.go
+response.go
+utils.go

samples/openapi3/client/petstore/go-petstore-withXml/.openapi-generator/VERSION

@@ -0,0 +1 @@
+7.16.0-SNAPSHOT

samples/openapi3/client/petstore/go-petstore-withXml/.travis.yml

@@ -0,0 +1,8 @@
+language: go
+
+install:
+  - go get -d -v .
+
+script:
+  - go build -v ./
+

samples/openapi3/client/petstore/go-petstore-withXml/README.md

@@ -0,0 +1,145 @@
+# Go API client for petstore
+
+This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+
+## Overview
+This API client was generated by the [OpenAPI Generator](https://openapi-generator.tech) project.  By using the [OpenAPI-spec](https://www.openapis.org/) from a remote server, you can easily generate an API client.
+
+- API version: 1.0.0
+- Package version: 1.0.0
+- Generator version: 7.16.0-SNAPSHOT
+- Build package: org.openapitools.codegen.languages.GoClientCodegen
+
+## Installation
+
+Install the following dependencies:
+
+```sh
+go get github.com/stretchr/testify/assert
+go get golang.org/x/oauth2
+go get golang.org/x/net/context
+```
+
+Put the package under your project folder and add the following in import:
+
+```go
+import petstore "github.com/GIT_USER_ID/GIT_REPO_ID"
+```
+
+To use a proxy, set the environment variable `HTTP_PROXY`:
+
+```go
+os.Setenv("HTTP_PROXY", "http://proxy_name:proxy_port")
+```
+
+## Configuration of Server URL
+
+Default configuration comes with `Servers` field that contains server objects as defined in the OpenAPI specification.
+
+### Select Server Configuration
+
+For using other server than the one defined on index 0 set context value `petstore.ContextServerIndex` of type `int`.
+
+```go
+ctx := context.WithValue(context.Background(), petstore.ContextServerIndex, 1)
+```
+
+### Templated Server URL
+
+Templated server URL is formatted using default variables from configuration or from context value `petstore.ContextServerVariables` of type `map[string]string`.
+
+```go
+ctx := context.WithValue(context.Background(), petstore.ContextServerVariables, map[string]string{
+	"basePath": "v2",
+})
+```
+
+Note, enum values are always validated and all unused variables are silently ignored.
+
+### URLs Configuration per Operation
+
+Each operation can use different server URL defined using `OperationServers` map in the `Configuration`.
+An operation is uniquely identified by `"{classname}Service.{nickname}"` string.
+Similar rules for overriding default operation server index and variables applies by using `petstore.ContextOperationServerIndices` and `petstore.ContextOperationServerVariables` context maps.
+
+```go
+ctx := context.WithValue(context.Background(), petstore.ContextOperationServerIndices, map[string]int{
+	"{classname}Service.{nickname}": 2,
+})
+ctx = context.WithValue(context.Background(), petstore.ContextOperationServerVariables, map[string]map[string]string{
+	"{classname}Service.{nickname}": {
+		"port": "8443",
+	},
+})
+```
+
+## Documentation for API Endpoints
+
+All URIs are relative to *http://petstore.swagger.io/v2*
+
+Class | Method | HTTP request | Description
+------------ | ------------- | ------------- | -------------
+*PetAPI* | [**AddPet**](docs/PetAPI.md#addpet) | **Post** /pet | Add a new pet to the store
+
+
+## Documentation For Models
+
+ - [Category](docs/Category.md)
+ - [Pet](docs/Pet.md)
+ - [Tag](docs/Tag.md)
+
+
+## Documentation For Authorization
+
+
+Authentication schemes defined for the API:
+### petstore_auth
+
+
+- **Type**: OAuth
+- **Flow**: implicit
+- **Authorization URL**: http://petstore.swagger.io/api/oauth/dialog
+- **Scopes**: 
+ - **write:pets**: modify pets in your account
+ - **read:pets**: read your pets
+
+Example
+
+```go
+auth := context.WithValue(context.Background(), petstore.ContextAccessToken, "ACCESSTOKENSTRING")
+r, err := client.Service.Operation(auth, args)
+```
+
+Or via OAuth2 module to automatically refresh tokens and perform user authentication.
+
+```go
+import "golang.org/x/oauth2"
+
+/* Perform OAuth2 round trip request and obtain a token */
+
+tokenSource := oauth2cfg.TokenSource(createContext(httpClient), &token)
+auth := context.WithValue(oauth2.NoContext, petstore.ContextOAuth2, tokenSource)
+r, err := client.Service.Operation(auth, args)
+```
+
+
+## Documentation for Utility Methods
+
+Due to the fact that model structure members are all pointers, this package contains
+a number of utility functions to easily obtain pointers to values of basic types.
+Each of these functions takes a value of the given basic type and returns a pointer to it:
+
+* `PtrBool`
+* `PtrInt`
+* `PtrInt32`
+* `PtrInt64`
+* `PtrFloat`
+* `PtrFloat32`
+* `PtrFloat64`
+* `PtrString`
+* `PtrTime`
+
+## Author
+
+
+