Package ratpack.test

Class MainClassApplicationUnderTest

  • All Implemented Interfaces:
    java.lang.AutoCloseable, ApplicationUnderTest, CloseableApplicationUnderTest
    public class MainClassApplicationUnderTest
extends ServerBackedApplicationUnderTest
    An application under test fixture that can be used to test a server started by a “main” method. 
    
 import ratpack.core.server.RatpackServer;
 import ratpack.test.MainClassApplicationUnderTest;

 import static org.junit.jupiter.api.Assertions.assertEquals;

 public class Example {

   public static class App {
     public static void main(String[] args) throws Exception {
       RatpackServer.start(s -> s
         .handlers(c -> c
           .get(ctx -> ctx.render("Hello world!"))
         )
       );
     }
   }

   public static void main(String[] args) throws Exception {
     new MainClassApplicationUnderTest(App.class).test(testHttpClient ->
       assertEquals("Hello world!", testHttpClient.getText())
     );
   }
 }

    Note that this type implements CloseableApplicationUnderTest, and should be closed when no longer needed.

    See Also:
    ServerBackedApplicationUnderTest.addImpositions(ImpositionsSpec), ServerBackedApplicationUnderTest

    • Constructor Detail

      • MainClassApplicationUnderTest

        public MainClassApplicationUnderTest​(java.lang.Class<?> mainClass)
        Creates a new app under test, based on the given main class.
        Parameters:
        mainClass - a class who's main method starts a Ratpack server

    • Method Detail

      • createServer

        protected ratpack.core.server.RatpackServer createServer()
                                                  throws java.lang.Exception
        Starts the Ratpack server by invoking the public static void main(String[]) method of the “main class” backing this object.
        Specified by:
        createServer in class ServerBackedApplicationUnderTest
        Returns:
        the Ratpack server created by the main method
        Throws:
        java.lang.Exception - if the main method cannot be invoked