"use strict";

const util = require("util");

module.exports = function assertErrorType(error) {
	if (!(error instanceof Error)) {
		let stack = (new Error).stack
			.split("\n")
			.filter((line, n) => (n > 0 || !line.startsWith("Error")))
			.join("\n");

		console.warn(`Converted Node stream produced an error value that isn't an Error instance: ${util.inspect(error)}`);
		console.warn(`Stack:`);
		console.warn(stack);
	}
};