I am getting the error message : Executing the 'country' method on 'ParkLocator' failed. Make sure the method exists with the name 'country', is public and static, accepts a String, and returns an array of Strings from the web service.

Hi, @Ananth Muralidharan

try to use this code:

Apex class ParkLocator

public class ParkLocator {
public static String[] country(String country){
        ParkService.ParksImplPort Locator = new ParkService.ParksImplPort();
        return Locator.byCountry(country);
    }
}

Test Class ParkLocatorTest

@isTest
public class ParkLocatorTest {
@isTest static void testMock(){
        test.setMock(WebserviceMock.class, new ParkServiceMock());
        String[] parksName = ParkLocator.Country('India');
        List<String> country = new List<String>();
               	country.add('Inamdar National Park');
                country.add('Riza National Park');
                country.add('Shilpa National Park');
        System.assertEquals(country, parksName, 'park names are not as expected');
    }
}

ParkServiceMock

global class ParkServiceMock implements WebServiceMock {
    global void doInvoke(Object stub,Object request,Map<String, Object> response,String endpoint,
           String soapAction,String requestName,String responseNS,String responseName,String responseType){
        		ParkService.byCountryResponse response_x = new ParkService.byCountryResponse();
                List<String> country = new List<String>();
               	country.add('Inamdar Shola National Park');
                country.add('Riza National Park');
                country.add('Shilpa National Park');
            	response_x.return_x = country;
                response.put('response_x', response_x);
    	}   
}

Sincerely, 

Mykhailo Vdovychenko 

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