juplo.de Git - facebook-errors/blob - src/test/java/de/juplo/facebook/errors/GraphApiExchangeFilterFunctionIntegrationTest.java

   1 package de.juplo.facebook.errors;
   2
   3
   4 import de.juplo.facebook.errors.GraphApiException.Type;
   5 import okhttp3.mockwebserver.MockResponse;
   6 import okhttp3.mockwebserver.MockWebServer;
   7 import org.junit.After;
   8 import static org.junit.Assert.assertEquals;
   9 import static org.junit.Assert.fail;
  10 import org.junit.Before;
  11 import org.junit.Test;
  12 import org.slf4j.Logger;
  13 import org.slf4j.LoggerFactory;
  14 import org.springframework.http.HttpStatus;
  15 import org.springframework.http.client.reactive.JettyClientHttpConnector;
  16 import org.springframework.web.reactive.function.client.WebClient;
  17 import org.springframework.web.reactive.function.client.WebClientResponseException.BadRequest;
  18 import org.springframework.web.reactive.function.client.WebClientResponseException.InternalServerError;
  19 import reactor.core.publisher.Mono;
  20 import reactor.test.StepVerifier;
  21
  22
  23 /**
  24  *
  25  * @author Kai Moritz
  26  */
  27 public class GraphApiExchangeFilterFunctionIntegrationTest
  28 {
  29   private static final Logger LOG =
  30       LoggerFactory.getLogger(GraphApiExchangeFilterFunctionIntegrationTest.class);
  31
  32   private MockWebServer server;
  33         private WebClient webClient;
  34
  35
  36         @Before
  37         public void setup()
  38   {
  39     server = new MockWebServer();
  40     webClient =
  41         WebClient
  42             .builder()
  43             .clientConnector(new JettyClientHttpConnector())
  44             .baseUrl(server.url("/").toString())
  45             .filter(new GraphApiExchangeFilterFunction())
  46             .build();
  47         }
  48
  49         @After
  50         public void shutdown() throws Exception
  51   {
  52     this.server.shutdown();
  53         }
  54
  55
  56   @Test
  57   public void testNoError()
  58   {
  59     Mono<String> result;
  60
  61
  62     //server
  63     //    .enqueue(new MockResponse()
  64     //        .setResponseCode(HttpStatus.CONTINUE.value())
  65     //        .setHeader("Content-Type", "application/json")
  66     //        .setBody("Hallo Welt!"));
  67     //
  68     //result =
  69     //    webClient
  70     //        .get()
  71     //        .uri("/egal")
  72     //        .retrieve()
  73     //        .bodyToMono(String.class);
  74     //
  75     //StepVerifier
  76     //    .create(result)
  77     //    .expectNext("Hallo Welt!")
  78     //    .expectComplete()
  79     //    .verify();
  80
  81
  82     server
  83         .enqueue(new MockResponse()
  84             .setResponseCode(HttpStatus.OK.value())
  85             .setHeader("Content-Type", "text/plain")
  86             .setBody("Hallo Welt!"));
  87
  88     result =
  89         webClient
  90             .get()
  91             .uri("/egal")
  92             .retrieve()
  93             .bodyToMono(String.class);
  94
  95     StepVerifier
  96         .create(result)
  97         .expectNext("Hallo Welt!")
  98         .expectComplete()
  99         .verify();
 100
 101
 102     server
 103         .enqueue(new MockResponse()
 104             .setResponseCode(HttpStatus.TEMPORARY_REDIRECT.value())
 105             .setHeader("Location", server.url("/woanders"))
 106             .setHeader("Content-Type", "text/plain")
 107             .setBody("Jetzt doch woanders..."));
 108     server
 109         .enqueue(new MockResponse()
 110             .setResponseCode(HttpStatus.OK.value())
 111             .setHeader("Content-Type", "text/plain")
 112             .setBody("Hallo Welt!"));
 113
 114     result =
 115         webClient
 116             .get()
 117             .uri("/egal")
 118             .retrieve()
 119             .bodyToMono(String.class);
 120
 121     StepVerifier
 122         .create(result)
 123         .expectNext("Hallo Welt!")
 124         .expectComplete()
 125         .verify();
 126
 127
 128     server
 129         .enqueue(new MockResponse()
 130             .setResponseCode(HttpStatus.INTERNAL_SERVER_ERROR.value())
 131             .setHeader("Content-Type", "text/plain")
 132             .setBody("Hallo Welt!"));
 133
 134     result =
 135         webClient
 136             .get()
 137             .uri("/egal")
 138             .retrieve()
 139             .bodyToMono(String.class);
 140
 141     StepVerifier
 142         .create(result)
 143         .expectError(InternalServerError.class)
 144         .verify();
 145   }
 146
 147   @Test
 148   public void testValidError()
 149   {
 150     server
 151         .enqueue(new MockResponse()
 152             .setResponseCode(HttpStatus.BAD_REQUEST.value())
 153             .setHeader("Content-Type", "application/json")
 154             .setBody(
 155                 "{\n" +
 156                 "  \"error\":\n" +
 157                 "  {\n" +
 158                 "    \"message\": \"(#613) Calls to stream have exceeded the rate of 600 calls per 600 seconds.\",\n" +
 159                 "    \"type\": \"OAuthException\",\n" +
 160                 "    \"code\": 613\n" +
 161                 "  }\n" +
 162                 "}"));
 163
 164     Mono<String> result =
 165         webClient
 166             .get()
 167             .uri("/egal")
 168             .retrieve()
 169             .bodyToMono(String.class);
 170
 171     StepVerifier.create(result).expectErrorSatisfies(throwable ->
 172     {
 173       assertEquals(RateLimitExceededException.class, throwable.getClass());
 174       RateLimitExceededException e = (RateLimitExceededException)throwable;
 175       LOG.debug("{}", e.toString());
 176       assertEquals(new Integer(613), e.getCode());
 177       assertEquals("(#613) Calls to stream have exceeded the rate of 600 calls per 600 seconds.", e.getMessage());
 178       assertEquals(Type.OAuthException, e.getType());
 179     })
 180     .verify();
 181   }
 182
 183   @Test
 184   public void testUnmappedError()
 185   {
 186     server
 187         .enqueue(new MockResponse()
 188             .setResponseCode(HttpStatus.BAD_REQUEST.value())
 189             .setHeader("Content-Type", "application/json")
 190             .setBody(
 191                 "{\n" +
 192                 "  \"error\":\n" +
 193                 "  {\n" +
 194                 "    \"message\": \"This error does not exist.\",\n" +
 195                 "    \"type\": \"NonexistentTypeException\",\n" +
 196                 "    \"code\": 999999999\n" +
 197                 "  }\n" +
 198                 "}"));
 199
 200
 201     Mono<String> result =
 202         webClient
 203             .get()
 204             .uri("/egal")
 205             .retrieve()
 206             .bodyToMono(String.class);
 207
 208     StepVerifier.create(result).expectErrorSatisfies(throwable ->
 209     {
 210       assertEquals(UnmappedErrorException.class, throwable.getClass());
 211       UnmappedErrorException e = (UnmappedErrorException)throwable;
 212       LOG.debug("{}", e.toString());
 213       assertEquals(new Integer(999999999), e.getCode());
 214       assertEquals("This error does not exist.", e.getMessage());
 215       try
 216       {
 217         Type type = e.getType();
 218         LOG.error("unknown type: {}", type);
 219         fail("unmapped type was resolved by enum: " + type);
 220       }
 221       catch (IllegalArgumentException ee) {}
 222     })
 223     .verify();
 224   }
 225
 226   @Test
 227   public void testInvlalidError()
 228   {
 229     Mono<String> result;
 230
 231
 232     server
 233         .enqueue(new MockResponse()
 234             .setResponseCode(HttpStatus.BAD_REQUEST.value())
 235             .setHeader("Content-Type", "application/json")
 236             .setBody(
 237                 "{\n" +
 238                 "  \"error\":\n" +
 239                 "  {\n" +
 240                 "    \"message\": \"Not a Graph-Api-Exception.\",\n" +
 241                 "    \"type\": \"Whatever\",\n" +
 242                 "    \"code\": \"some string\"\n" +
 243                 "  }\n" +
 244                 "}"));
 245
 246     result =
 247         webClient
 248             .get()
 249             .uri("/egal")
 250             .retrieve()
 251             .bodyToMono(String.class);
 252
 253     StepVerifier.create(result).expectError(BadRequest.class).verify();
 254
 255
 256     server
 257         .enqueue(new MockResponse()
 258             .setResponseCode(HttpStatus.BAD_REQUEST.value())
 259             .setHeader("Content-Type", "text/plain")
 260             .setBody("Hallo Welt!"));
 261
 262     result =
 263         webClient
 264             .get()
 265             .uri("/egal")
 266             .retrieve()
 267             .bodyToMono(String.class);
 268
 269     StepVerifier.create(result).expectError(BadRequest.class).verify();
 270   }
 271 }