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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at <http://mozilla.org/MPL/2.0/>. */
"use strict";
add_task(async function () {
const dbg = await initDebugger("doc-return-values.html");
await togglePauseOnExceptions(dbg, true, true);
info("Test return values");
await testReturnValue(dbg, "to sender", [
{ label: "return_something" },
{ label: "<return>", value: uneval("to sender") },
]);
await testReturnValue(dbg, "undefined", [
{ label: "return_something" },
{ label: "<return>", value: '"undefined"' },
]);
await testReturnValue(dbg, 2, [
{ label: "return_something" },
{ label: "<return>", value: "2" },
]);
await testReturnValue(dbg, new Error("blah"), [
{ label: "return_something" },
{ label: "<return>", value: "Restricted" },
]);
info("Test throw values");
await testThrowValue(dbg, "a fit", [
{ label: "callee" },
// The "uneval" call here gives us the way one would write `val` as
// a JavaScript expression, similar to the way the debugger
// displays values, so this test works when `val` is a string.
{ label: "<exception>", value: uneval("a fit") },
]);
await testThrowValue(dbg, "undefined", [
{ label: "callee" },
{ label: "<exception>", value: '"undefined"' },
]);
await testThrowValue(dbg, 2, [
{ label: "callee" },
{ label: "<exception>", value: "2" },
]);
await testThrowValue(dbg, new Error("blah"), [
{ label: "callee" },
{ label: "<exception>", value: "Restricted" },
]);
});
async function testReturnValue(dbg, val, expectedScopeNodes) {
invokeInTab("return_something", val);
await waitForPaused(dbg);
// "Step in" 2 times to get to the point where the debugger can
// see the return value.
await stepIn(dbg);
await stepIn(dbg);
for (const [i, scopeNode] of expectedScopeNodes.entries()) {
const index = i + 1;
is(
getScopeNodeLabel(dbg, index),
scopeNode.label,
`check for ${scopeNode.label}`
);
if (scopeNode.value) {
is(
getScopeNodeValue(dbg, index),
scopeNode.value,
`check value is ${scopeNode.value}`
);
}
}
await resume(dbg);
assertNotPaused(dbg);
}
async function testThrowValue(dbg, val, expectedScopeNodes) {
invokeInTab("throw_something", val);
await waitForPaused(dbg);
// "Step in" once to get to the point where the debugger can see the
// exception.
await stepIn(dbg);
for (const [i, scopeNode] of expectedScopeNodes.entries()) {
const index = i + 1;
is(
getScopeNodeLabel(dbg, index),
scopeNode.label,
`check for ${scopeNode.label}`
);
if (scopeNode.value) {
is(
getScopeNodeValue(dbg, index),
scopeNode.value,
`check exception is ${scopeNode.value}`
);
}
}
await resume(dbg);
assertNotPaused(dbg);
}
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