initial commit for wiremock

rest-testing/pom.xml

@@ -1,4 +1,5 @@
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>com.baeldung</groupId>
 	<artifactId>rest-testing</artifactId>
@@ -102,6 +103,12 @@
 			<version>${mockito.version}</version>
 			<scope>test</scope>
 		</dependency>
+		<dependency>
+			<groupId>com.github.tomakehurst</groupId>
+			<artifactId>wiremock</artifactId>
+			<version>1.58</version>
+			<scope>test</scope>
+		</dependency>
 
 	</dependencies>
 

rest-testing/src/test/java/com/baeldung/rest/wiremock/introduction/JUnitManaged.java

@@ -0,0 +1,53 @@
+package com.baeldung.rest.wiremock.introduction;
+
+import static com.github.tomakehurst.wiremock.client.WireMock.aResponse;
+import static com.github.tomakehurst.wiremock.client.WireMock.configureFor;
+import static com.github.tomakehurst.wiremock.client.WireMock.get;
+import static com.github.tomakehurst.wiremock.client.WireMock.getRequestedFor;
+import static com.github.tomakehurst.wiremock.client.WireMock.stubFor;
+import static com.github.tomakehurst.wiremock.client.WireMock.urlEqualTo;
+import static com.github.tomakehurst.wiremock.client.WireMock.urlPathMatching;
+import static com.github.tomakehurst.wiremock.client.WireMock.verify;
+import static org.junit.Assert.assertEquals;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Scanner;
+
+import org.apache.http.HttpResponse;
+import org.apache.http.client.methods.HttpGet;
+import org.apache.http.impl.client.CloseableHttpClient;
+import org.apache.http.impl.client.HttpClients;
+import org.junit.Rule;
+import org.junit.Test;
+
+import com.github.tomakehurst.wiremock.junit.WireMockRule;
+
+public class JUnitManaged {
+    @Rule
+    public WireMockRule wireMockRule = new WireMockRule();
+
+    @Test
+    public void givenJUnitManagedServer_whenStubbingURL_thenCorrect() throws IOException {
+        configureFor("localhost", 8080);
+        stubFor(get(urlPathMatching("/baeldung/.*")).willReturn(aResponse().withStatus(200).withHeader("Content-Type", "application/json").withBody("\"testing-library\": \"WireMock\"")));
+
+        CloseableHttpClient httpClient = HttpClients.createDefault();
+        HttpGet request = new HttpGet("http://localhost:8080/baeldung/wiremock");
+        HttpResponse httpResponse = httpClient.execute(request);
+        String stringResponse = convertResponseToString(httpResponse);
+
+        verify(getRequestedFor(urlEqualTo("/baeldung/wiremock")));
+        assertEquals(200, httpResponse.getStatusLine().getStatusCode());
+        assertEquals("application/json", httpResponse.getFirstHeader("Content-Type").getValue());
+        assertEquals("\"testing-library\": \"WireMock\"", stringResponse);
+    }
+
+    private String convertResponseToString(HttpResponse response) throws IOException {
+        InputStream responseStream = response.getEntity().getContent();
+        Scanner scanner = new Scanner(responseStream, "UTF-8");
+        String stringResponse = scanner.useDelimiter("\\Z").next();
+        scanner.close();
+        return stringResponse;
+    }
+}

rest-testing/src/test/java/com/baeldung/rest/wiremock/introduction/ProgrammaticallyManaged.java

@@ -0,0 +1,52 @@
+package com.baeldung.rest.wiremock.introduction;
+
+import static com.github.tomakehurst.wiremock.client.WireMock.aResponse;
+import static com.github.tomakehurst.wiremock.client.WireMock.configureFor;
+import static com.github.tomakehurst.wiremock.client.WireMock.get;
+import static com.github.tomakehurst.wiremock.client.WireMock.getRequestedFor;
+import static com.github.tomakehurst.wiremock.client.WireMock.stubFor;
+import static com.github.tomakehurst.wiremock.client.WireMock.urlEqualTo;
+import static com.github.tomakehurst.wiremock.client.WireMock.verify;
+import static org.junit.Assert.assertEquals;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Scanner;
+
+import org.apache.http.HttpResponse;
+import org.apache.http.client.methods.HttpGet;
+import org.apache.http.impl.client.CloseableHttpClient;
+import org.apache.http.impl.client.HttpClients;
+import org.junit.Test;
+
+import com.github.tomakehurst.wiremock.WireMockServer;
+
+public class ProgrammaticallyManaged {
+    WireMockServer wireMockServer = new WireMockServer();
+    CloseableHttpClient httpClient = HttpClients.createDefault();
+
+    @Test
+    public void givenProgrammaticallyManagedServer_whenUsingSimpleStubbing_thenCorrect() throws IOException {
+        wireMockServer.start();
+
+        configureFor("localhost", 8080);
+        stubFor(get(urlEqualTo("/baeldung")).willReturn(aResponse().withBody("Welcome to Baeldung!")));
+
+        HttpGet request = new HttpGet("http://localhost:8080/baeldung");
+        HttpResponse httpResponse = httpClient.execute(request);
+        String stringResponse = convertResponseToString(httpResponse);
+
+        verify(getRequestedFor(urlEqualTo("/baeldung")));
+        assertEquals("Welcome to Baeldung!", stringResponse);
+
+        wireMockServer.stop();
+    }
+
+    private String convertResponseToString(HttpResponse response) throws IOException {
+        InputStream responseStream = response.getEntity().getContent();
+        Scanner scanner = new Scanner(responseStream, "UTF-8");
+        String stringResponse = scanner.useDelimiter("\\Z").next();
+        scanner.close();
+        return stringResponse;
+    }
+}