WIP: WebClient

[facebook-errors] / src / test / java / de / juplo / facebook / errors / GraphApiExchangeFilterFunctionIntegrationTest.java

diff --git a/src/test/java/de/juplo/facebook/errors/GraphApiExchangeFilterFunctionIntegrationTest.java b/src/test/java/de/juplo/facebook/errors/GraphApiExchangeFilterFunctionIntegrationTest.java
index 2c94a49..306f044 100644 (file)
--- a/src/test/java/de/juplo/facebook/errors/GraphApiExchangeFilterFunctionIntegrationTest.java
+++ b/src/test/java/de/juplo/facebook/errors/GraphApiExchangeFilterFunctionIntegrationTest.java
@@ -13,6 +13,7 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.client.reactive.JettyClientHttpConnector;
+import org.springframework.web.reactive.function.client.ExchangeFilterFunction;
 import org.springframework.web.reactive.function.client.WebClient;
 import reactor.core.publisher.Mono;
 import reactor.test.StepVerifier;
@@ -40,7 +41,6 @@ public class GraphApiExchangeFilterFunctionIntegrationTest
             .builder()
             .clientConnector(new JettyClientHttpConnector())
             .baseUrl(server.url("/").toString())
-            .filter(GraphApiExchangeFilterFunction.INSTANCE)
             .build();
        }
 
@@ -74,6 +74,7 @@ public class GraphApiExchangeFilterFunctionIntegrationTest
             .get()
             .uri("/egal")
             .retrieve()
+            .onStatus(status -> status.is4xxClientError(), response -> GraphApiException.create(response))
             .bodyToMono(String.class);
 
     StepVerifier
@@ -89,4 +90,64 @@ public class GraphApiExchangeFilterFunctionIntegrationTest
         })
         .verify(Duration.ofSeconds(3));
   }
+
+  @Test
+  public void testTest()
+  {
+    server
+        .enqueue(new MockResponse()
+            .setResponseCode(400)
+            .setHeader("Content-Type", "text/plain")
+            .setBody("Hello Spring!"));
+
+               Mono<String> result;
+
+    result = webClient.get()
+                               .uri("/greeting?name=Spring")
+                               .retrieve()
+        .onStatus(status -> status.is4xxClientError(), response -> GraphApiException.create(response))
+                               .bodyToMono(String.class);
+
+               StepVerifier.create(result)
+                               .expectError(Exception.class)
+                               .verify(Duration.ofSeconds(3));
+
+    server
+        .enqueue(new MockResponse()
+            .setResponseCode(200)
+            .setHeader("Content-Type", "text/plain")
+            .setHeader("Foo", "Bar")
+            .setBody("Hello Spring!"));
+
+               result = webClient.get()
+                               .uri("/greeting?name=Spring")
+                               .retrieve()
+        .onStatus(status -> status.is4xxClientError(), response -> GraphApiException.create(response))
+                               .bodyToMono(String.class);
+
+               StepVerifier.create(result)
+                               .expectNext("Hello Spring!")
+        .expectComplete()
+                               .verify(Duration.ofSeconds(3));
+  }
+
+  public static ExchangeFilterFunction errorHandlingFilter()
+  {
+    return ExchangeFilterFunction.ofResponseProcessor(clientResponse ->
+    {
+      if (clientResponse.statusCode() != null && (clientResponse.statusCode()
+          .is5xxServerError() || clientResponse.statusCode().is4xxClientError()))
+      {
+        return clientResponse.bodyToMono(String.class)
+            .flatMap(errorBody ->
+            {
+              return Mono.error(new Exception(errorBody));
+            });
+      }
+      else
+      {
+        return Mono.just(clientResponse);
+      }
+    });
+  }
 }