From e3cbe5e272845110ebe7862bcb35bc9999c416fe Mon Sep 17 00:00:00 2001
From: Kai Moritz <kai@jupl.de>
Date: Thu, 21 Nov 2019 13:55:46 +0100
Subject: [PATCH] WIP: TMP - WebClient

---
 ...ExchangeFilterFunctionIntegrationTest.java | 34 +++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/src/test/java/de/juplo/facebook/errors/GraphApiExchangeFilterFunctionIntegrationTest.java b/src/test/java/de/juplo/facebook/errors/GraphApiExchangeFilterFunctionIntegrationTest.java
index 2c94a49..a10066b 100644
--- a/src/test/java/de/juplo/facebook/errors/GraphApiExchangeFilterFunctionIntegrationTest.java
+++ b/src/test/java/de/juplo/facebook/errors/GraphApiExchangeFilterFunctionIntegrationTest.java
@@ -3,6 +3,7 @@ package de.juplo.facebook.errors;
 
 import de.juplo.facebook.errors.GraphApiException.Type;
 import java.time.Duration;
+import java.util.List;
 import okhttp3.mockwebserver.MockResponse;
 import okhttp3.mockwebserver.MockWebServer;
 import org.junit.After;
@@ -13,6 +14,7 @@ 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;
@@ -89,4 +91,36 @@ public class GraphApiExchangeFilterFunctionIntegrationTest
         })
         .verify(Duration.ofSeconds(3));
   }
+
+  @Test
+  public void testTest()
+  {
+    WebClient webClient =
+        WebClient
+            .builder()
+            .clientConnector(new JettyClientHttpConnector())
+            .baseUrl(server.url("/").toString())
+            .filter(ExchangeFilterFunction.ofResponseProcessor(response ->
+            {
+							List<String> headerValues = response.headers().header("Foo");
+							return headerValues.isEmpty() ? Mono.error(
+									new Exception("Response does not contain Foo header")) :
+									Mono.just(response);
+						}))
+            .build();
+
+    server
+        .enqueue(new MockResponse()
+            .setHeader("Content-Type", "text/plain")
+            .setBody("Hello Spring!"));
+
+		Mono<String> result = webClient.get()
+				.uri("/greeting?name=Spring")
+				.retrieve()
+				.bodyToMono(String.class);
+
+		StepVerifier.create(result)
+				.expectError(Exception.class)
+				.verify(Duration.ofSeconds(3));
+  }
 }
-- 
2.20.1