support Problem Details handler in the MockRouter

Author: kliushnichenko

modules/jooby-test/src/main/java/io/jooby/test/MockRouter.java

@@ -18,6 +18,7 @@
 import io.jooby.Router;
 import io.jooby.SneakyThrows;
 import io.jooby.WebSocket;
+import io.jooby.problem.ProblemDetailsHandler;
 
 /**
  * Utility class that allows us to execute routes using a {@link MockContext}.
@@ -74,6 +75,9 @@ public Object value() {
    * @param application Source application.
    */
   public MockRouter(@NonNull Jooby application) {
+    if (application.problemDetailsIsEnabled()) {
+      application.error(ProblemDetailsHandler.from(application.getConfig()));
+    }
     this.supplier = () -> application;
   }
 

tests/src/test/java/io/jooby/i3787/Application.java

@@ -1,10 +1,19 @@
 package io.jooby.i3787;
 
+import com.typesafe.config.Config;
+import com.typesafe.config.ConfigFactory;
 import io.jooby.Jooby;
 import io.jooby.problem.HttpProblem;
 
+import java.util.Map;
+
 class Application extends Jooby {
   {
+    Config problemDetailsConfig = ConfigFactory.parseMap(
+        Map.of("problem.details.enabled", true)
+    );
+    getEnvironment().setConfig(problemDetailsConfig.withFallback(getConfig()));
+
     get("/throw", ctx -> {
       throw new CustomException();
     });
@@ -19,5 +28,6 @@ public static void main(String[] args) {
     runApp(args, Application::new);
   }
 
-  static class CustomException extends RuntimeException {}
+  static class CustomException extends RuntimeException {
+  }
 }