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("Content-Type", "text/plain")
 106             .setBody("Hallo Welt!"));
 107
 108     result =
 109         webClient
 110             .get()
 111             .uri("/egal")
 112             .retrieve()
 113             .bodyToMono(String.class);
 114
 115     StepVerifier
 116         .create(result)
 117         .expectNext("Hallo Welt!")
 118         .expectComplete()
 119         .verify();
 120
 121
 122     server
 123         .enqueue(new MockResponse()
 124             .setResponseCode(HttpStatus.INTERNAL_SERVER_ERROR.value())
 125             .setHeader("Content-Type", "text/plain")
 126             .setBody("Hallo Welt!"));
 127
 128     result =
 129         webClient
 130             .get()
 131             .uri("/egal")
 132             .retrieve()
 133             .bodyToMono(String.class);
 134
 135     StepVerifier
 136         .create(result)
 137         .expectError(InternalServerError.class)
 138         .verify();
 139   }
 140
 141   @Test
 142   public void testValidError()
 143   {
 144     server
 145         .enqueue(new MockResponse()
 146             .setResponseCode(HttpStatus.BAD_REQUEST.value())
 147             .setHeader("Content-Type", "application/json")
 148             .setBody(
 149                 "{\n" +
 150                 "  \"error\":\n" +
 151                 "  {\n" +
 152                 "    \"message\": \"(#613) Calls to stream have exceeded the rate of 600 calls per 600 seconds.\",\n" +
 153                 "    \"type\": \"OAuthException\",\n" +
 154                 "    \"code\": 613\n" +
 155                 "  }\n" +
 156                 "}"));
 157
 158     Mono<String> result =
 159         webClient
 160             .get()
 161             .uri("/egal")
 162             .retrieve()
 163             .bodyToMono(String.class);
 164
 165     StepVerifier.create(result).expectErrorSatisfies(throwable ->
 166     {
 167       assertEquals(RateLimitExceededException.class, throwable.getClass());
 168       RateLimitExceededException e = (RateLimitExceededException)throwable;
 169       LOG.debug("{}", e.toString());
 170       assertEquals(new Integer(613), e.getCode());
 171       assertEquals("(#613) Calls to stream have exceeded the rate of 600 calls per 600 seconds.", e.getMessage());
 172       assertEquals(Type.OAuthException, e.getType());
 173     })
 174     .verify();
 175   }
 176
 177   @Test
 178   public void testUnmappedError()
 179   {
 180     server
 181         .enqueue(new MockResponse()
 182             .setResponseCode(HttpStatus.BAD_REQUEST.value())
 183             .setHeader("Content-Type", "application/json")
 184             .setBody(
 185                 "{\n" +
 186                 "  \"error\":\n" +
 187                 "  {\n" +
 188                 "    \"message\": \"This error does not exist.\",\n" +
 189                 "    \"type\": \"NonexistentTypeException\",\n" +
 190                 "    \"code\": 999999999\n" +
 191                 "  }\n" +
 192                 "}"));
 193
 194
 195     Mono<String> result =
 196         webClient
 197             .get()
 198             .uri("/egal")
 199             .retrieve()
 200             .bodyToMono(String.class);
 201
 202     StepVerifier.create(result).expectErrorSatisfies(throwable ->
 203     {
 204       assertEquals(UnmappedErrorException.class, throwable.getClass());
 205       UnmappedErrorException e = (UnmappedErrorException)throwable;
 206       LOG.debug("{}", e.toString());
 207       assertEquals(new Integer(999999999), e.getCode());
 208       assertEquals("This error does not exist.", e.getMessage());
 209       try
 210       {
 211         Type type = e.getType();
 212         LOG.error("unknown type: {}", type);
 213         fail("unmapped type was resolved by enum: " + type);
 214       }
 215       catch (IllegalArgumentException ee) {}
 216     })
 217     .verify();
 218   }
 219
 220   @Test
 221   public void testInvlalidError()
 222   {
 223     Mono<String> result;
 224
 225
 226     server
 227         .enqueue(new MockResponse()
 228             .setResponseCode(HttpStatus.BAD_REQUEST.value())
 229             .setHeader("Content-Type", "application/json")
 230             .setBody(
 231                 "{\n" +
 232                 "  \"error\":\n" +
 233                 "  {\n" +
 234                 "    \"message\": \"Not a Graph-Api-Exception.\",\n" +
 235                 "    \"type\": \"Whatever\",\n" +
 236                 "    \"code\": \"some string\"\n" +
 237                 "  }\n" +
 238                 "}"));
 239
 240     result =
 241         webClient
 242             .get()
 243             .uri("/egal")
 244             .retrieve()
 245             .bodyToMono(String.class);
 246
 247     StepVerifier.create(result).expectError(BadRequest.class).verify();
 248
 249
 250     server
 251         .enqueue(new MockResponse()
 252             .setResponseCode(HttpStatus.BAD_REQUEST.value())
 253             .setHeader("Content-Type", "text/plain")
 254             .setBody("Hallo Welt!"));
 255
 256     result =
 257         webClient
 258             .get()
 259             .uri("/egal")
 260             .retrieve()
 261             .bodyToMono(String.class);
 262
 263     StepVerifier.create(result).expectError(BadRequest.class).verify();
 264   }
 265 }