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"use strict";
var assert = require("chai").assert
, sinon = require("sinon")
, identity = require("../../function/identity")
, finallyMethod = require("../../thenable_/finally");
var throwUnexpected = function () { throw new Error("Unexpected"); };
describe("thenable_/finally", function () {
describe("Successful on fulfilled", function () {
var callback, input, result;
before(function () {
callback = sinon.fake();
input = Promise.resolve("foo");
result = finallyMethod.call(input, callback);
return result;
});
it("Should invoke finally callback", function () { assert(callback.calledOnce); });
it("Return promise should fulfill with original result", function () {
return Promise.all([input, result]).then(function (results) {
assert.equal(results[0], results[1]);
});
});
});
describe("Successful on rejected", function () {
var callback, input, result;
before(function () {
var inputError = new Error("Rejected");
callback = sinon.fake();
input = Promise.reject(inputError);
result = finallyMethod.call(input, callback);
return result["catch"](function (error) { if (error !== inputError) throw error; });
});
it("Should invoke finally callback", function () { assert(callback.calledOnce); });
it("Return promise should fulfill with original result", function () {
return Promise.all([input["catch"](identity), result["catch"](identity)]).then(
function (results) { assert.equal(results[0], results[1]); }
);
});
});
describe("Failed on fulfilled", function () {
var callback, result, finallyError;
before(function () {
finallyError = new Error("Finally Rejected");
callback = sinon.fake["throws"](finallyError);
var input = Promise.resolve("foo");
result = finallyMethod.call(input, callback);
return result["catch"](function (error) { if (error !== finallyError) throw error; });
});
it("Should invoke finally callback", function () { assert(callback.calledOnce); });
it("Return promise should be rejected with finally error", function () {
return result.then(throwUnexpected, function (error) {
assert.equal(finallyError, error);
});
});
});
describe("Failed on rejected", function () {
var callback, result, finallyError;
before(function () {
finallyError = new Error("Finally Rejected");
callback = sinon.fake["throws"](finallyError);
var input = Promise.reject(new Error("Rejected"));
result = finallyMethod.call(input, callback);
return result["catch"](function (error) { if (error !== finallyError) throw error; });
});
it("Should invoke finally callback", function () { assert(callback.calledOnce); });
it("Return promise should be rejected with finally error", function () {
return result.then(throwUnexpected, function (error) {
assert.equal(finallyError, error);
});
});
});
});