Function checkWrappedMethod

test-app/public/sinon.js:3597–3617

(wrappedMethod)

        }
    
        function checkWrappedMethod(wrappedMethod) {
            var error;
    
            if (!isFunction(wrappedMethod)) {
                error = new TypeError(
                    "Attempted to wrap " + typeof wrappedMethod + " property " + valueToString(property) + " as function"
                );
            } else if (wrappedMethod.restore && wrappedMethod.restore.sinon) {
                error = new TypeError("Attempted to wrap " + valueToString(property) + " which is already wrapped");
            } else if (wrappedMethod.calledBefore) {
                var verb = wrappedMethod.returns ? "stubbed" : "spied on";
                error = new TypeError("Attempted to wrap " + valueToString(property) + " which is already " + verb);
            }
    
            if (error) {
                if (wrappedMethod && wrappedMethod.stackTraceError) {
                    error.stack += "\n--------------\n" + wrappedMethod.stackTraceError.stack;
                }
                throw error;
            }
        }
    
        var error, wrappedMethod, i, wrappedMethodDesc;