io.dropwizard.testing.junit5.DropwizardClientExtension Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of dropwizard-testing Show documentation

There is a newer version: 5.0.0-alpha.4

package io.dropwizard.testing.junit5;

import com.fasterxml.jackson.databind.ObjectMapper;
import io.dropwizard.core.setup.Environment;
import io.dropwizard.testing.common.DropwizardClient;

import java.net.URI;
import java.net.URL;

//@formatter:off
/**
 * Test your HTTP client code by writing a JAX-RS test double class and let this extension start and stop a
 * Dropwizard application containing your doubles.
 * 
 * Example:
 * 

    {@literal @}Path("/ping")
    public static class PingResource {
        {@literal @}GET
        public String ping() {
            return "pong";
        }
    }

    public static DropwizardClientExtension dropwizard = new DropwizardClientExtension(new PingResource());

    {@literal @}Test
    public void shouldPing() throws IOException {
        URL url = new URL(dropwizard.baseUri() + "/ping");
        String response = new BufferedReader(new InputStreamReader(url.openStream())).readLine();
        assertEquals("pong", response);
    }

 * Of course, you'd use your http client, not {@link URL#openStream()}.
 * 
 * 
 * The {@link DropwizardClientExtension} takes care of:
 * 

 * Creating a simple default configuration.
 * Creating a simplistic application.
 * Adding a dummy health check to the application to suppress the startup warning.
 * Adding your resources to the application.
 * Choosing a free random port number.
 * Starting the application.
 * Stopping the application.
 * 
 * 
 */
//@formatter:off
public class DropwizardClientExtension implements DropwizardExtension {
    private final DropwizardClient client;

    public DropwizardClientExtension(Object... resources) {
        this.client = new DropwizardClient(resources);
    }

    public URI baseUri() {
        return client.baseUri();
    }

    public ObjectMapper getObjectMapper() {
        return client.getObjectMapper();
    }

    public Environment getEnvironment() {
        return client.getEnvironment();
    }

    @Override
    public void before() throws Throwable {
        client.before();
    }

    @Override
    public void after() {
        client.after();
    }
}