Fixed not initializing the childrens of a object node

Author: ditschedev

src/main/java/dev/ditsche/validator/rule/builder/ObjectRuleBuilder.java

@@ -3,6 +3,7 @@
 import dev.ditsche.validator.validation.Validatable;
 import dev.ditsche.validator.validation.ValidationObject;
 
+import java.util.LinkedList;
 import java.util.List;
 
 /**
@@ -16,6 +17,7 @@ public class ObjectRuleBuilder implements Builder {
 
     ObjectRuleBuilder(String field) {
         this.field = field;
+        this.children = new LinkedList<>();
     }
 
     public ObjectRuleBuilder child(Builder builder) {

src/test/java/dev/ditsche/validator/ValidatorTest.java

@@ -2,6 +2,7 @@
 
 import dev.ditsche.validator.dto.NestedEntity;
 import dev.ditsche.validator.dto.TestEntity;
+import dev.ditsche.validator.error.ValidationException;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 
@@ -25,9 +26,16 @@ public void shouldValidateExample() {
                 string("email").required().trim().email(),
                 string("firstName").defaultValue("").trim().alphanum().max(80),
                 number("count").max(5),
-                object("nestedEntity")
+                object("nestedEntity").child(
+                        string("name").required().trim().min(4)
+                )
         );
 
+        try {
+            testEntity = validator.validate(testEntity);
+        } catch (ValidationException ex) {
+            throw  ex;
+        }
     }
 
 }

src/test/java/dev/ditsche/validator/rule/ruleset/PatternRuleTest.java

@@ -52,7 +52,7 @@ public void shouldReturnValidErrorMessage() {
     @Test
     public void shouldValidate() {
         assertDoesNotThrow(() -> {
-            validator.validate(new TestEntity("test", "", "", 3));
+            validator.validate(new TestEntity("test", "", "", 3, null));
         });
     }