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We can reconstruct the CDP error and print a better error message using RemoteAgentError. This is better than the current output, which in a lot of cases will be "CDP Exception: [object Object]". A possible future improvement to this involves extending the CDP protocol to send the individual components of the error individually, so that we don't have to parse the string. Differential Revision: https://phabricator.services.mozilla.com/D28703 --HG-- extra : moz-landing-system : lando
104 lines
2.4 KiB
JavaScript
104 lines
2.4 KiB
JavaScript
/* Any copyright is dedicated to the Public Domain.
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* http://creativecommons.org/publicdomain/zero/1.0/ */
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"use strict";
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/* eslint-disable no-tabs */
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const {
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RemoteAgentError,
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UnknownMethodError,
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UnsupportedError,
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} = ChromeUtils.import("chrome://remote/content/Error.jsm");
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add_test(function test_RemoteAgentError_ctor() {
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const e1 = new RemoteAgentError();
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equal(e1.name, "RemoteAgentError");
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equal(e1.message, "");
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equal(e1.cause, e1.message);
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const e2 = new RemoteAgentError("message");
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equal(e2.message, "message");
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equal(e2.cause, e2.message);
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const e3 = new RemoteAgentError("message", "cause");
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equal(e3.message, "message");
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equal(e3.cause, "cause");
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run_next_test();
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});
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add_test(function test_RemoteAgentError_notify() {
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// nothing much we can test, except test that it doesn't throw
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new RemoteAgentError().notify();
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run_next_test();
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});
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add_test(function test_RemoteAgentError_toString() {
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const e = new RemoteAgentError("message");
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equal(e.toString(), RemoteAgentError.format(e));
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equal(e.toString({stack: true}), RemoteAgentError.format(e, {stack: true}));
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run_next_test();
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});
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add_test(function test_RemoteAgentError_format() {
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const {format} = RemoteAgentError;
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equal(format({name: "HippoError"}), "HippoError");
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equal(format({name: "HorseError", message: "neigh"}), "HorseError: neigh");
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const dog = {
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name: "DogError",
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message: "woof",
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stack: " one\ntwo\nthree ",
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};
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equal(format(dog), "DogError: woof");
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equal(format(dog, {stack: true}),
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`DogError: woof:
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one
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two
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three`);
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const cat = {
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name: "CatError",
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message: "meow",
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stack: "four\nfive\nsix",
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cause: dog,
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};
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equal(format(cat), "CatError: meow");
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equal(format(cat, {stack: true}),
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`CatError: meow:
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four
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five
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six
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caused by: DogError: woof:
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one
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two
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three`);
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run_next_test();
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});
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add_test(function test_RemoteAgentError_fromJSON() {
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const cdpErr = {message: `TypeError: foo:
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bar
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baz`};
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const err = RemoteAgentError.fromJSON(cdpErr);
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equal(err.message, "TypeError: foo");
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equal(err.stack, "bar\nbaz");
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equal(err.cause, null);
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run_next_test();
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});
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add_test(function test_UnsupportedError() {
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ok(new UnsupportedError() instanceof RemoteAgentError);
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run_next_test();
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});
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add_test(function test_UnknownMethodError() {
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ok(new UnknownMethodError() instanceof RemoteAgentError);
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run_next_test();
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});
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