Tests assertions

force-app/main/default/classes/GeocodingServiceTest.cls

@@ -0,0 +1,107 @@
+/**
+ * Generic unit tests for geocoding service
+ * @author Lorenzo
+ * @version 1.0
+ */
+
+ @isTest
+ private with sharing class GeocodingServiceTest {
+     private static final String STREET = 'Camino del Jueves 26';
+     private static final String CITY = 'Armilla';
+     private static final String POSTAL_CODE = '18100';
+     private static final String STATE = 'Granada';
+     private static final String COUNTRY = 'Spain';
+     private static final Decimal LATITUDE = 3.123;
+     private static final Decimal LONGITUDE = 31.333;
+     private static final Decimal CONTINENT = '31.333';
+
+     @isTest
+     static void successResponse() {
+         // GIVEN
+         GeocodingService.GeocodingAddress address = new GeocodingService.GeocodingAddress();
+         address.street = STREET;
+         address.city = CITY;
+         address.postalcode = POSTAL_CODE;
+         address.state = STATE;
+         address.country = COUNTRY;
+
+         Test.setMock(
+             HttpCalloutMock.class,
+             new OpenStreetMapHttpCalloutMockImpl()
+         );
+
+         // WHEN
+         List<GeocodingService.Coordinates> computedCoordinates = GeocodingService.geocodeAddresses(
+             new List<GeocodingService.GeocodingAddress>{ address }
+         );
+
+         // THEN
+         Assert.areEqual(1, computedCoordinates.size());
+         Assert.areEqual(LATITUDE, computedCoordinates[0].lat);
+         Assert.areEqual(LONGITUDE, computedCoordinates[0].lon);
+     }
+
+     static void testMethod blankAddress() {
+         // GIVEN
+         GeocodingService.GeocodingAddress address = new GeocodingService.GeocodingAddress();
+
+         Test.setMock(
+             HttpCalloutMock.class,
+             new OpenStreetMapHttpCalloutMockImpl()
+         );
+
+         // WHEN
+         List<GeocodingService.Coordinates> computedCoordinates = GeocodingService.geocodeAddresses(
+             new List<GeocodingService.GeocodingAddress>{ address }
+         );
+
+         // THEN
+         Assert.areEqual(1, computedCoordinates.size());
+         Assert.isNull(computedCoordinates[0].lat);
+         Assert.isNull(computedCoordinates[0].lon);
+     }
+     @isTest
+     static void errorResponse() {
+         // GIVEN
+         GeocodingService.GeocodingAddress address = new GeocodingService.GeocodingAddress();
+         address.street = STREET;
+         address.city = CITY;
+         address.postalcode = POSTAL_CODE;
+         address.state = STATE;
+         address.country = COUNTRY;
+
+         Test.setMock(
+             HttpCalloutMock.class,
+             new OpenStreetMapHttpCalloutMockImplError()
+         );
+
+         // WHEN
+         List<GeocodingService.Coordinates> computedCoordinates = GeocodingService.geocodeAddresses(
+             new List<GeocodingService.GeocodingAddress>{ address }
+         );
+
+         // THEN
+         Assert.areEqual(1, computedCoordinates.size(), 'Asserts that the number of coordinates is equal to 1.');
+         Assert.isNull(computedCoordinates[0].lat, 'Assert that the first coordinate is null.');
+         Assert.isNull(computedCoordinates[0].lon, 'Assert that the first coordinate is null.');
+     }
+
+     public class OpenStreetMapHttpCalloutMockImpl implements HttpCalloutMock {
+         public HTTPResponse respond(HTTPRequest req) {
+             HttpResponse res = new HttpResponse();
+             res.setHeader('Content-Type', 'application/json');
+             res.setBody('[{"lat": ' + LATITUDE + ',"lon": ' + LONGITUDE + '}]');
+             res.setStatusCode(200);
+             return res;
+         }
+     }
+
+     public class OpenStreetMapHttpCalloutMockImplError implements HttpCalloutMock {
+         public HTTPResponse respond(HTTPRequest req) {
+             HttpResponse res = new HttpResponse();
+             res.setHeader('Content-Type', 'application/json');
+             res.setStatusCode(400);
+             return res;
+         }
+     }
+ }