Adding ability to control auto-validation (#15)

Author: vudodov

V.Udodov.Json.Tests/EntityTests.cs

@@ -203,5 +203,30 @@ public void WhenTryingToGetFlexibleDataEntityItemItShouldThrow()
 
             result.Should().Be(12);
         }
+        
+        [Fact]
+        public void WhenSettingEntityFlexibleDataWithSchemaAndAutoValidationIsEnabledAndDataIsInvalidItShouldThrow()
+        {
+            const string schema = @"{
+              'type': 'object',
+              'properties': {
+                'shoe_size': { 'type': 'number', 'minimum': 5, 'maximum': 12, 'multipleOf': 1.0 }
+              }
+            }";
+
+            var entityMock = new EntityMock
+            {
+                AutoValidate = false,
+                ExtensionDataJsonSchema = schema
+            };
+            Action action = () => entityMock["shoe_size"] = 15;
+            Action validation = () => entityMock.Validate();
+
+            action.Should().NotThrow<JsonEntityValidationException>();
+            validation
+                .Should().Throw<JsonEntityValidationException>()
+                .And.Errors
+                .Should().HaveCount(1);
+        }
     }
 }

V.Udodov.Json/Entity.cs

@@ -13,6 +13,16 @@ public class Entity
         [JsonIgnore] private JSchema _extensionDataJsonSchema;
         [JsonExtensionData] private readonly IDictionary<string, JToken> _data = new Dictionary<string, JToken>();
 
+        /// <summary>
+        /// Enables auto-validation of object against JsonSchema on add attempt. 
+        /// </summary>
+        [JsonIgnore] public bool AutoValidate { get; set; }
+
+        public Entity()
+        {
+            AutoValidate = true;
+        }
+
         /// <summary>
         /// Get Full JSON Schema including class properties and configured flexible data schema.
         /// </summary>
@@ -93,15 +103,18 @@ private void Set(string key, object value)
         {
             var token = JToken.FromObject(value);
 
-            if (_extensionDataJsonSchema != null)
+            if (AutoValidate)
             {
-                var obj = JObject.FromObject(_data);
-                obj[key] = token;
+                if (_extensionDataJsonSchema != null)
+                {
+                    var obj = JObject.FromObject(_data);
+                    obj[key] = token;
 
-                if (!obj.IsValid(_extensionDataJsonSchema, out IList<ValidationError> errors))
-                    throw new JsonEntityValidationException(
-                        $"Validation for value {token} failed against JSON schema {_extensionDataJsonSchema}.",
-                        errors);
+                    if (!obj.IsValid(_extensionDataJsonSchema, out IList<ValidationError> errors))
+                        throw new JsonEntityValidationException(
+                            $"Validation for value {token} failed against JSON schema {_extensionDataJsonSchema}.",
+                            errors);
+                }
             }
 
             _data[key] = token;
@@ -132,5 +145,21 @@ object JTokenToObject(JToken source)
             value = null;
             return false;
         }
+
+        /// <summary>
+        /// Validates if current entity state is valid against JsonSchema.
+        /// </summary>
+        /// <exception cref="JsonEntityValidationException"></exception>
+        public void Validate()
+        {
+            if (_extensionDataJsonSchema == null) return;
+            
+            var obj = JObject.FromObject(_data);
+
+            if (!obj.IsValid(_extensionDataJsonSchema, out IList<ValidationError> errors))
+                throw new JsonEntityValidationException(
+                    $"Validation failed against JSON schema {_extensionDataJsonSchema}.",
+                    errors);
+        }
     }
 }