91 lines
2.9 KiB
JavaScript
91 lines
2.9 KiB
JavaScript
"use strict";
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const {deepEqual, equal, fail, throws} = require("chai").assert;
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const sinon = require("sinon");
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const {setupTestDOMWindow} = require("./setup");
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describe("browser-polyfill", () => {
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describe("wrapped async functions", () => {
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it("returns a promise which resolves to the callback parameters", () => {
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const fakeChrome = {
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alarms: {clear: sinon.stub()},
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runtime: {
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lastError: null,
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requestUpdateCheck: sinon.stub(),
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},
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tabs: {
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query: sinon.stub(),
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},
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};
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return setupTestDOMWindow(fakeChrome).then(window => {
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// Test for single callback argument.
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fakeChrome.alarms.clear
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.onFirstCall().callsArgWith(1, "res1");
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// Test for single array callback argument.
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fakeChrome.tabs.query
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.onFirstCall().callsArgWith(1, ["res1", "res2"]);
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// Test for multiple callback arguments.
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fakeChrome.runtime.requestUpdateCheck
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.onFirstCall().callsArgWith(0, "res1", "res2");
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return Promise.all([
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window.browser.alarms.clear("test1"),
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window.browser.tabs.query({active: true}),
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window.browser.runtime.requestUpdateCheck(),
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]);
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}).then(results => {
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equal(results[0], "res1", "Fake alarms.clear call resolved to a single value");
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deepEqual(results[1], ["res1", "res2"],
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"Fake tabs.query resolved to an array of values");
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deepEqual(results[2], ["res1", "res2"],
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"Fake runtime.requestUpdateCheck resolved to an array of values");
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});
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});
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it("rejects the returned promise if chrome.runtime.lastError is not null", () => {
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const fakeChrome = {
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runtime: {
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lastError: new Error("fake lastError"),
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},
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tabs: {
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query: sinon.stub(),
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},
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};
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return setupTestDOMWindow(fakeChrome).then(window => {
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// Test for single array callback argument.
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fakeChrome.tabs.query
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.onFirstCall().callsArgWith(1, ["res1", "res2"]);
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return window.browser.tabs.query({active: true}).then(
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() => fail("Expected a rejected promise"),
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(err) => equal(err, fakeChrome.runtime.lastError,
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"Got the expected error in the rejected promise")
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);
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});
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});
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it("throws if the number of arguments are not in the range defined in the metadata", () => {
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const fakeChrome = {
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runtime: {
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lastError: null,
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sendMessage: sinon.spy(),
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},
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};
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return setupTestDOMWindow(fakeChrome).then(window => {
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throws(() => {
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window.browser.runtime.sendMessage();
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}, "Expected at least 1 argument for sendMessage(), got 0");
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throws(() => {
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window.browser.runtime.sendMessage("0", "1", "2", "3");
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}, "Expected at most 3 arguments for sendMessage(), got 4");
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});
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});
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});
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});
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