java-tutorials/play-framework/routing-in-play/test/controllers/HomeControllerUnitTest.java

package controllers;

import org.junit.Test;
import play.Application;
import play.inject.guice.GuiceApplicationBuilder;
import play.mvc.Http;
import play.mvc.Result;
import play.test.WithApplication;
import play.twirl.api.Html;

import java.util.Optional;
import java.util.concurrent.CompletionStage;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import static play.mvc.Http.Status.*;
import static play.test.Helpers.GET;
import static play.test.Helpers.route;

public class HomeControllerUnitTest extends WithApplication {

    @Override
    protected Application provideApplication() {
        return new GuiceApplicationBuilder().build();
    }

    @Test
    public void givenRequest_whenRootPath_ThenStatusOkay() {
        Http.RequestBuilder request = new Http.RequestBuilder()
                .method(GET)
                .uri("/");

        Result result = route(app, request);
        assertEquals(OK, result.status());
    }
}