Add Basic Setup to Write Tests for hTTP Client

We do lot of HTTP client calls, but do not have much tests about that.
This is the foundation to write capture replay test for the DefectDojo
API calls.

Signed-off-by: Sven Strittmatter <sven.strittmatter@iteratec.com>

Author: Weltraumschaf

pom.xml

@@ -178,6 +178,12 @@
       <version>3.15.6</version>
       <scope>test</scope>
     </dependency>
+    <dependency>
+      <groupId>org.wiremock</groupId>
+      <artifactId>wiremock</artifactId>
+      <version>3.4.1</version>
+      <scope>test</scope>
+    </dependency>
   </dependencies>
 
   <distributionManagement>

src/test/java/io/securecodebox/persistence/defectdojo/HttpClientTest.java

@@ -0,0 +1,56 @@
+package io.securecodebox.persistence.defectdojo;
+
+import com.github.tomakehurst.wiremock.junit5.WireMockRuntimeInfo;
+import com.github.tomakehurst.wiremock.junit5.WireMockTest;
+import org.junit.jupiter.api.Test;
+
+import java.io.IOException;
+import java.net.URI;
+import java.net.http.HttpClient;
+import java.net.http.HttpRequest;
+import java.net.http.HttpResponse;
+
+import static com.github.tomakehurst.wiremock.client.WireMock.*;
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.containsString;
+import static org.hamcrest.Matchers.is;
+
+/**
+ * This is just a PoC to test if WireMock is sufficient to test our REST calls
+ * <p>
+ * See https://wiremock.org/docs/quickstart/java-junit/
+ * and https://wiremock.org/docs/junit-jupiter/
+ */
+@WireMockTest(httpPort = HttpClientTest.PORT)
+final class HttpClientTest {
+
+  public static final int PORT = 8888;
+
+  private URI createUri(String path) {
+    return URI.create("http://localhost:%d/%s".formatted(PORT, path));
+  }
+
+  @Test
+  void test_something_with_wiremock(WireMockRuntimeInfo wmRuntimeInfo) throws IOException, InterruptedException {
+    stubFor(get("/my/resource")
+      .withHeader("Content-Type", containing("xml"))
+      .willReturn(ok()
+        .withHeader("Content-Type", "text/xml")
+        .withBody("<response>SUCCESS</response>")));
+
+    // Setup HTTP POST request (with HTTP Client embedded in Java 11+)
+    final HttpClient client = HttpClient.newBuilder().build();
+    final HttpRequest request = HttpRequest.newBuilder()
+      .uri(createUri("my/resource"))
+      .header("Content-Type", "text/xml")
+      .GET()
+      .build();
+
+    // Send the request and receive the response
+    final HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString());
+
+    // Verify the response (with AssertJ)
+    assertThat(response.statusCode(), is(200));
+    assertThat(response.body(), containsString("<response>SUCCESS</response>"));
+  }
+}