Add JSON Schema validation

json/src/test/java/org/baeldung/json/schema/JSONSchemaTest.java

@@ -11,10 +11,30 @@ import org.junit.Test;
 public class JSONSchemaTest {
 
     @Test
-    public void validateJSON() {
+    public void givenInvalidInput_whenValidating_thenInvalid() {
 
         JSONObject jsonSchema = new JSONObject(new JSONTokener(JSONSchemaTest.class.getResourceAsStream("/schema.json")));
-        JSONObject jsonSubject = new JSONObject(new JSONTokener(JSONSchemaTest.class.getResourceAsStream("/product.json")));
+        JSONObject jsonSubject = new JSONObject(new JSONTokener(JSONSchemaTest.class.getResourceAsStream("/product_invalid.json")));
+
+        Schema schema = SchemaLoader.load(jsonSchema);
+
+        try {
+
+            schema.validate(jsonSubject);
+        }
+
+        catch (ValidationException e) {
+
+            System.out.println(e.getMessage());
+            e.getCausingExceptions().stream().map(ValidationException::getMessage).forEach(System.out::println);
+        }
+    }
+
+    @Test
+    public void givenValidInput_whenValidating_thenValid() {
+
+        JSONObject jsonSchema = new JSONObject(new JSONTokener(JSONSchemaTest.class.getResourceAsStream("/schema.json")));
+        JSONObject jsonSubject = new JSONObject(new JSONTokener(JSONSchemaTest.class.getResourceAsStream("/product_valid.json")));
 
         Schema schema = SchemaLoader.load(jsonSchema);
 

json/src/test/resources/product_valid.json

@@ -1,5 +1,5 @@
 {
     "id": 1,
     "name": "Lampshade",
-    "price": 0
+    "price": 10
 }