How to resolve JSON Schema validation Error in Rest Assured - io.cucumber.core.exception.CucumberExc-CodePudding

I was trying to do the JSON schema validation in Rest Assured framework using the below code by reading the filename loginschema.json from src/test/resources/data folder and was getting CucumberException. Can someone provide their inputs on how to resolve this issue?

**UtilFile:**

import java.io.*;
import java.util.*;
import io.restassured.module.jsv.JsonSchemaValidator;

public void verifyResponseBody(File fileName)  {
String pathName = "src/test/resources/data/"  fileName  ".json";
response.then().assertThat().body(JsonSchemaValidator.matchesJsonSchemaInClasspath(pathName));
}

**Cucumber file:**
Then I see response matches file loginschema


**Common Stepdefintion File:**

@Then("I see response matches file {}")
public void i_see_response_matches_file(File fileName) {
    apiUtil.verifyResponseBody(fileName);
}    

**Error:**     
And I see response matches file loginschema                      # 
test.java.com.stepdefinitions.Common_StepDefintions.i_see_response_matches_file(java.io.File)
  io.cucumber.core.exception.CucumberException: Could not convert arguments for step [I see response matches file {}] defined at 'test.java.com.stepdefinitions.Common_StepDefintions.i_see_response_matches_file(java.io.File)'.

CodePudding user response：

You get this error because you cannot just take an arbitrary sequence of chars from your steps (like you do with {}) and treat it as a File (argument type that your step takes).

You should change this public void i_see_response_matches_file(File fileName) to this public void i_see_response_matches_file(String fileName) and create File instance from that path internally within a step.

P.S. - Or you can create custom parameter type and describer conversion there.

CodePudding user response：

Alexey already provided the reason for exception. Here I am showing you how to write custom parameter type for cucumber expression.

Feature:

Scenario Outline: File name
Then I see response matches file <loginschema>

Examples: 
  | loginschema                                                                |
  | C:\\Users\\Nandan\\EclipseWorkspace\\APIPractice\\PayLoads\\Response.json |

StepDefinition:

/*Converting the output parameter type to File*/

@ParameterType(".*")
public File file(String path) {
    return new File(path);
}

@Then("I see response matches file {file}")
public void i_see_response_matches_file(File fileName) {
    System.out.println(fileName);
}

Output:

C:\Users\Nandan\EclipseWorkspace\APIPractice\PayLoads\Response.json