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Introduction to WireMock (#437) 

* initial commit for wiremock

* introduction to wiremock

* minor fixes

* adds the wire_mock.json file
This commit is contained in:
nguyennamthai 2016-06-07 18:44:55 +07:00 committed by Grzegorz Piwowarek
parent 49c9072564
commit aadaba0331
4 changed files with 330 additions and 139 deletions
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9
rest-testing/pom.xml
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@ -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>

5
rest-testing/src/main/resources/wiremock_intro.json Normal file
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@ -0,0 +1,5 @@
{
"testing-library": "WireMock",
"creator": "Tom Akehurst",
"website": "wiremock.org"
}

127
rest-testing/src/test/java/com/baeldung/rest/wiremock/introduction/JUnitManaged.java Normal file
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package com.baeldung.rest.wiremock.introduction;
import static com.github.tomakehurst.wiremock.client.WireMock.aResponse;
import static com.github.tomakehurst.wiremock.client.WireMock.equalTo;
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.post;
import static com.github.tomakehurst.wiremock.client.WireMock.postRequestedFor;
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.urlPathEqualTo;
import static com.github.tomakehurst.wiremock.client.WireMock.urlPathMatching;
import static com.github.tomakehurst.wiremock.client.WireMock.matching;
import static com.github.tomakehurst.wiremock.client.WireMock.containing;
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.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
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_whenMatchingURL_thenCorrect() throws IOException {
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 = convertHttpResponseToString(httpResponse);
verify(getRequestedFor(urlEqualTo("/baeldung/wiremock")));
assertEquals(200, httpResponse.getStatusLine().getStatusCode());
assertEquals("application/json", httpResponse.getFirstHeader("Content-Type").getValue());
assertEquals("\"testing-library\": \"WireMock\"", stringResponse);
}
@Test
public void givenJUnitManagedServer_whenMatchingHeaders_thenCorrect() throws IOException {
stubFor(get(urlPathEqualTo("/baeldung/wiremock")).withHeader("Accept", matching("text/.*")).willReturn(aResponse().withStatus(503).withHeader("Content-Type", "text/html").withBody("!!! Service Unavailable !!!")));
CloseableHttpClient httpClient = HttpClients.createDefault();
HttpGet request = new HttpGet("http://localhost:8080/baeldung/wiremock");
request.addHeader("Accept", "text/html");
HttpResponse httpResponse = httpClient.execute(request);
String stringResponse = convertHttpResponseToString(httpResponse);
verify(getRequestedFor(urlEqualTo("/baeldung/wiremock")));
assertEquals(503, httpResponse.getStatusLine().getStatusCode());
assertEquals("text/html", httpResponse.getFirstHeader("Content-Type").getValue());
assertEquals("!!! Service Unavailable !!!", stringResponse);
}
@Test
public void givenJUnitManagedServer_whenMatchingBody_thenCorrect() throws IOException {
stubFor(post(urlEqualTo("/baeldung/wiremock")).withHeader("Content-Type", equalTo("application/json")).withRequestBody(containing("\"testing-library\": \"WireMock\"")).withRequestBody(containing("\"creator\": \"Tom Akehurst\""))
.withRequestBody(containing("\"website\": \"wiremock.org\"")).willReturn(aResponse().withStatus(200)));
InputStream jsonInputStream = this.getClass().getClassLoader().getResourceAsStream("wiremock_intro.json");
String jsonString = convertInputStreamToString(jsonInputStream);
StringEntity entity = new StringEntity(jsonString);
CloseableHttpClient httpClient = HttpClients.createDefault();
HttpPost request = new HttpPost("http://localhost:8080/baeldung/wiremock");
request.addHeader("Content-Type", "application/json");
request.setEntity(entity);
HttpResponse response = httpClient.execute(request);
verify(postRequestedFor(urlEqualTo("/baeldung/wiremock")).withHeader("Content-Type", equalTo("application/json")));
assertEquals(200, response.getStatusLine().getStatusCode());
}
@Test
public void givenJUnitManagedServer_whenNotUsingPriority_thenCorrect() throws IOException {
stubFor(get(urlPathMatching("/baeldung/.*")).willReturn(aResponse().withStatus(200)));
stubFor(get(urlPathEqualTo("/baeldung/wiremock")).withHeader("Accept", matching("text/.*")).willReturn(aResponse().withStatus(503)));
HttpResponse httpResponse = generateClientAndReceiveResponseForPriorityTests();
verify(getRequestedFor(urlEqualTo("/baeldung/wiremock")));
assertEquals(503, httpResponse.getStatusLine().getStatusCode());
}
@Test
public void givenJUnitManagedServer_whenUsingPriority_thenCorrect() throws IOException {
stubFor(get(urlPathMatching("/baeldung/.*")).atPriority(1).willReturn(aResponse().withStatus(200)));
stubFor(get(urlPathEqualTo("/baeldung/wiremock")).atPriority(2).withHeader("Accept", matching("text/.*")).willReturn(aResponse().withStatus(503)));
HttpResponse httpResponse = generateClientAndReceiveResponseForPriorityTests();
verify(getRequestedFor(urlEqualTo("/baeldung/wiremock")));
assertEquals(200, httpResponse.getStatusLine().getStatusCode());
}
private String convertHttpResponseToString(HttpResponse httpResponse) throws IOException {
InputStream inputStream = httpResponse.getEntity().getContent();
return convertInputStreamToString(inputStream);
}
private String convertInputStreamToString(InputStream inputStream) {
Scanner scanner = new Scanner(inputStream, "UTF-8");
String string = scanner.useDelimiter("\\Z").next();
scanner.close();
return string;
}
private HttpResponse generateClientAndReceiveResponseForPriorityTests() throws IOException {
CloseableHttpClient httpClient = HttpClients.createDefault();
HttpGet request = new HttpGet("http://localhost:8080/baeldung/wiremock");
request.addHeader("Accept", "text/xml");
return httpClient.execute(request);
}
}

52
rest-testing/src/test/java/com/baeldung/rest/wiremock/introduction/ProgrammaticallyManaged.java Normal file
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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;
}
}