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