[BUG] Generation of test cases are failing for spring.

Created by: jskhedkarl

OpenAPI generator is not generating Integration test cases for spring API's Using the following generator to generate spring based code from openAPI specification. <openapi-generator-maven-plugin.version>4.0.2</openapi-generator-maven-plugin.version> swagger spec https://github.com/OAI/OpenAPI-Specification/blob/master/examples/v3.0/petstore.yaml

However, older swagger-codegen is able to generate integration test cases for API's.

1#Code generation using openapi-generator 4.0.2 rm -rf Tester/* && openapi-generator generate -i petstore.yaml -g spring --library spring-mvc -o Tester/ skhedkar@Thanos:~/sandbox/trunk/jhipster$ tree Tester/ Tester/ ├── pom.xml ├── README.md └── src └── main ├── java │   └── org │   └── openapitools │   ├── api │   │   ├── ApiUtil.java │   │   ├── PetsApiController.java │   │   └── PetsApi.java │   ├── configuration │   │   ├── HomeController.java │   │   ├── OpenAPIDocumentationConfig.java │   │   ├── OpenAPIUiConfiguration.java │   │   ├── RFC3339DateFormat.java │   │   ├── WebApplication.java │   │   └── WebMvcConfiguration.java │   └── model │   ├── Error.java │   └── Pet.java └── resources └── application.properties

9 directories, 14 files

2#Code generation using swagger-codegen-cli 3.0.9 rm -rf Tester/* && java -jar swagger-codegen-cli-3.0.9-20190627.154813-43.jar generate -i petstore.yaml -l spring --library spring-mvc -o Tester/

skhedkar@Thanos:~/sandbox/trunk/swagger$ tree Tester/ Tester/ ├── pom.xml ├── README.md └── src ├── main │   ├── java │   │   └── io │   │   └── swagger │   │   ├── api │   │   │   ├── ApiException.java │   │   │   ├── ApiOriginFilter.java │   │   │   ├── ApiResponseMessage.java │   │   │   ├── NotFoundException.java │   │   │   ├── PetsApiController.java │   │   │   └── PetsApi.java │   │   ├── configuration │   │   │   ├── CustomInstantDeserializer.java │   │   │   ├── RFC3339DateFormat.java │   │   │   ├── SwaggerDocumentationConfig.java │   │   │   ├── SwaggerUiConfiguration.java │   │   │   ├── WebApplication.java │   │   │   └── WebMvcConfiguration.java │   │   └── model │   │   ├── Error.java │   │   ├── Pet.java │   │   └── Pets.java │   └── resources │   └── swagger.properties └── test └── java └── io └── swagger └── api └── PetsApiControllerIT.java

Major difference between openapi-generator and swagger-codegen-cli is that template file api_test.mustache is missing in former.

https://github.com/OpenAPITools/openapi-generator/tree/v4.0.2/modules/openapi-generator/src/main/resources/JavaSpring/libraries/spring-mvc

https://github.com/swagger-api/swagger-codegen/tree/master/modules/swagger-codegen/src/main/resources/JavaSpring/libraries/spring-mvc

I don't know if it is a bug or test case generation is not supported for spring in openapi-generator.