getSerializableError.spec.js

"use strict";
var request = require("request");
describe("when serializing and deserializing a normal error", function () {
	it('will not give the same result', function () {
		var error = new Error("This is my error");
		var serialized = JSON.parse(JSON.stringify(error));
		expect(serialized.stack).not.to.be.ok;
	});
});

describe("when passed an error", function () {
	it('will make an error that is serializable', function () {
		var getSerialiazableError = require("../../lib/util/getSerializableError");
		var error = getSerialiazableError(new Error("This is my error"));
		var serialized = JSON.parse(JSON.stringify(error));
		expect(serialized.stack).to.be.ok;
		expect(error).to.eql(serialized);
	});
	it('will make only copy properties that can be JSON.serialized', function () {
		var getSerialiazableError = require("../../lib/util/getSerializableError");
		var sourceError = new Error("This is my error");
		//create circular reference
		var o = { circle:{}};
		o.circle = o;
		sourceError.test = o;
		var error = getSerialiazableError(sourceError);
		var serialized = JSON.parse(JSON.stringify(error));
		expect(serialized.stack).to.be.ok;
		expect(error).to.eql(serialized);
	});

	it('will not crash on big objects JSON.serialized', function (done) {
		var getSerialiazableError = require("../../lib/util/getSerializableError");
		var sourceError = new Error("This is my error");
		//get request response, that will reak havoc on the node process if JSON.stringify is run on it
		request.get("http://google.com", function(err, response){
			for(var i=0; i<1000; i++){
				sourceError[i] = response;
			}
			var error = getSerialiazableError(sourceError);
			var serialized = JSON.parse(JSON.stringify(error));
			expect(serialized.stack).to.be.ok;
			expect(error).to.eql(serialized);
			return done();
		});
	});
});