| InvalidHTTPMethod | The HTTP method used in the request is not one of the expected values: DELETE, GET, HEAD, OPTIONS, PATCH, POST, PUT, or TRACE. |
| InvalidStatusCode | The status code returned by the upstream server does not have a matching response in the OpenAPI spec. |
| MissingResponseDefinition | The OpenAPI spec contained a missing inline response definition or referenced a response that did not exist. |
| MissingSchemaDefinition | The requested path was not found in the OpenAPI spec. This response was not validated and may be missing relevant testcase properties.The OpenAPI spec contained a missing inline schema definition or referenced a schema that did not exist. |
| PathNotFound | The requested path was not found in the OpenAPI spec. |
| RequestFailedJSONDeserialization | The request body could not be deserialized as JSON. |
| RequestFailedValidationUnexpectedBoolean | The request body contained a boolean value when the OpenAPI spec expected a different type. |
| RequestFailedValidationUnexpectedNull | The request body contains a null value when the OpenAPI spec did not allow null values. |
| RequestFailedValidationUnexpectedNumber | The request body contained a number value when the OpenAPI spec expected a different type. |
| RequestFailedValidationUnexpectedProperty | The request body contained a property that was not defined in the OpenAPI spec. |
| RequestFailedValidationUnexpectedString | The request body contained a string value when the OpenAPI spec expected a different type. |
| RequestFailedValidationUnsupportedSchemaKind | The OpenAPI spec contained a schema with an unsupported kind, such as anyOf, oneOf, or not. |
| RequestMismatchNonEmptyBody | The client included a non-empty body when the OpenAPI spec expected an empty body. |
| RequestMismatchedContentTypeHeader | The client included a Content-Type header in the request that does not match any content types defined in the OpenAPI spec. |
| RequestMissingContentTypeHeader | The client did not include a Content-Type header in the request. This is only an issue when the response body is not empty. |
| ResponseFailedJSONDeserialization | The response body could not be deserialized as JSON. |
| ResponseFailedValidationUnexpectedBoolean | The response body contained a boolean value when the OpenAPI spec expected a different type. |
| ResponseFailedValidationUnexpectedNull | The response body contains a null value when the OpenAPI spec did not allow null values. |
| ResponseFailedValidationUnexpectedNumber | The response body contained a number value when the OpenAPI spec expected a different type. |
| ResponseFailedValidationUnexpectedProperty | The response body contained a property that was not defined in the OpenAPI spec. |
| ResponseFailedValidationUnexpectedString | The response body contained a string value when the OpenAPI spec expected a different type. |
| ResponseFailedValidationUnsupportedSchemaKind | The OpenAPI spec contained a schema with an unsupported kind, such as anyOf, oneOf, or not. |
| ResponseMismatchNonEmptyBody | The upstream server included a non-empty response body when the OpenAPI spec expected an empty body. |
| ResponseMismatchedContentTypeHeader | The upstream server included a Content-Type header in the response that does not match any content types defined in the OpenAPI spec. |
| ResponseMissingContentTypeHeader | The upstream server did not include a Content-Type header in the response. This is only an issue when the response body is not empty. |