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Test Info:
/* Any copyright is dedicated to the Public Domain.
// Test that failing top-level await expression (rejected or throwing) work as expected.
"use strict";
const TEST_URI =
"data:text/html;charset=utf-8,<!DOCTYPE html>Web Console test failing top-level await";
add_task(async function () {
// Needed for the execute() function below
await pushPref("security.allow_parent_unrestricted_js_loads", true);
// Enable await mapping.
await pushPref("devtools.debugger.features.map-await-expression", true);
const hud = await openNewTabAndConsole(TEST_URI);
info("Check that awaiting for a rejecting promise displays an error");
let res = await executeAndWaitForErrorMessage(
hud,
`await new Promise((resolve,reject) => setTimeout(() => reject("await-rej"), 250))`,
"Uncaught (in promise) await-rej"
);
ok(res.node, "awaiting for a rejecting promise displays an error message");
res = await executeAndWaitForErrorMessage(
hud,
`await Promise.reject("await-rej-2")`,
`Uncaught (in promise) await-rej-2`
);
ok(res.node, "awaiting for Promise.reject displays an error");
res = await executeAndWaitForErrorMessage(
hud,
`await Promise.reject("")`,
`Uncaught (in promise) <empty string>`
);
ok(
res.node,
"awaiting for Promise rejecting with empty string displays the expected error"
);
res = await executeAndWaitForErrorMessage(
hud,
`await Promise.reject(null)`,
`Uncaught (in promise) null`
);
ok(
res.node,
"awaiting for Promise rejecting with null displays the expected error"
);
res = await executeAndWaitForErrorMessage(
hud,
`await Promise.reject(undefined)`,
`Uncaught (in promise) undefined`
);
ok(
res.node,
"awaiting for Promise rejecting with undefined displays the expected error"
);
res = await executeAndWaitForErrorMessage(
hud,
`await Promise.reject(false)`,
`Uncaught (in promise) false`
);
ok(
res.node,
"awaiting for Promise rejecting with false displays the expected error"
);
res = await executeAndWaitForErrorMessage(
hud,
`await Promise.reject(0)`,
`Uncaught (in promise) 0`
);
ok(
res.node,
"awaiting for Promise rejecting with 0 displays the expected error"
);
res = await executeAndWaitForErrorMessage(
hud,
`await Promise.reject({foo: "bar"})`,
`Uncaught (in promise) Object { foo: "bar" }`
);
ok(
res.node,
"awaiting for Promise rejecting with an object displays the expected error"
);
res = await executeAndWaitForErrorMessage(
hud,
`await Promise.reject(new Error("foo"))`,
`Uncaught (in promise) Error: foo`
);
ok(
res.node,
"awaiting for Promise rejecting with an error object displays the expected error"
);
res = await executeAndWaitForErrorMessage(
hud,
`var err = new Error("foo");
err.name = "CustomError";
await Promise.reject(err);
`,
`Uncaught (in promise) CustomError: foo`
);
ok(
res.node,
"awaiting for Promise rejecting with an error object with a name property displays the expected error"
);
res = await executeAndWaitForErrorMessage(
hud,
`await new Promise(() => a.b.c)`,
`ReferenceError: a is not defined`
);
ok(
res.node,
"awaiting for a promise with a throwing function displays an error"
);
res = await executeAndWaitForErrorMessage(
hud,
`await new Promise(res => setTimeout(() => res(d.e.f), 250))`,
`ReferenceError: d is not defined`
);
ok(
res.node,
"awaiting for a promise with a throwing function displays an error"
);
res = await executeAndWaitForErrorMessage(
hud,
`await new Promise(res => { throw "instant throw"; })`,
`Uncaught (in promise) instant throw`
);
ok(
res.node,
"awaiting for a promise with a throwing function displays an error"
);
res = await executeAndWaitForErrorMessage(
hud,
`await new Promise(res => { throw new Error("instant error throw"); })`,
`Error: instant error throw`
);
ok(
res.node,
"awaiting for a promise with a thrown Error displays an error message"
);
res = await executeAndWaitForErrorMessage(
hud,
`await new Promise(res => { setTimeout(() => { throw "throw in timeout"; }, 250) })`,
`Uncaught throw in timeout`
);
ok(
res.node,
"awaiting for a promise with a throwing function displays an error"
);
res = await executeAndWaitForErrorMessage(
hud,
`await new Promise(res => {
setTimeout(() => { throw new Error("throw error in timeout"); }, 250)
})`,
`throw error in timeout`
);
ok(
res.node,
"awaiting for a promise with a throwing function displays an error"
);
info("Check that we have the expected number of commands");
const expectedInputsNumber = 16;
is(
(await findMessagesVirtualizedByType({ hud, typeSelector: ".command" }))
.length,
expectedInputsNumber,
"There is the expected number of commands messages"
);
info("Check that we have as many errors as commands");
const expectedErrorsNumber = expectedInputsNumber;
is(
(await findMessagesVirtualizedByType({ hud, typeSelector: ".error" }))
.length,
expectedErrorsNumber,
"There is the expected number of error messages"
);
info("Check that there's no result message");
is(
(await findMessagesVirtualizedByType({ hud, typeSelector: ".result" }))
.length,
0,
"There is no result messages"
);
info("Check that malformed await expressions displays a meaningful error");
res = await executeAndWaitForErrorMessage(
hud,
`await new Promise())`,
`SyntaxError: unexpected token: ')'`
);
ok(
res.node,
"awaiting for a malformed expression displays a meaningful error"
);
});