                     }
                 }
                 
-                context("a missingFieldError") {
+                context("a missingField error") {
                     it("should return the correct message") {
                         let field: Model.Key = .stringProperty
                         let type = Model.self

                    }
                }
                
                context("a convertibleError") {
                    it("should return the correct message") {
                        let value = ""
                        let expectedType = NSDictionary.self

    override func spec() {
        describe("failureReason") {
            context("when the error is") {
                context("a custom error") {
                    it("should return the message associated value") {
                        let expectedValue = "message"
                        let error = MapperError.customError(field: nil, message: expectedValue)
