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/* Any copyright is dedicated to the Public Domain.
* http://creativecommons.org/publicdomain/zero/1.0/ */
"use strict";
// Check that console helpers are not set when existing variables with similar names
// exists in the page.
const TEST_URI = `data:text/html,<!DOCTYPE html><script>
var $ = "var_$";
const $$ = "const_$$";
let help = "let_help";
globalThis.values = "globalThis_values";
function keys() {
return "function_keys";
}
function pauseInDebugger() {
let $x = "let_$x";
debugger;
}
</script>`;
add_task(async function () {
const hud = await openNewTabAndConsole(TEST_URI);
let message = await executeAndWaitForResultMessage(hud, "$", "var_$");
ok(message, "$ was not overridden");
message = await executeAndWaitForResultMessage(hud, "$$", "const_$$");
ok(message, "$$ was not overridden");
message = await executeAndWaitForResultMessage(hud, "help", "let_help");
ok(message, "help was not overridden");
message = await executeAndWaitForResultMessage(
hud,
"values",
"globalThis_values"
);
ok(message, "values was not overridden");
message = await executeAndWaitForResultMessage(
hud,
"keys()",
"function_keys"
);
ok(message, "keys was not overridden");
info("Pause in Debugger");
await openDebugger();
const toolbox = gDevTools.getToolboxForTab(gBrowser.selectedTab);
const dbg = createDebuggerContext(toolbox);
SpecialPowers.spawn(gBrowser.selectedBrowser, [], function () {
content.wrappedJSObject.pauseInDebugger();
});
await pauseDebugger(dbg);
info("Go back to Console");
await toolbox.selectTool("webconsole");
message = await executeAndWaitForResultMessage(hud, "$x", "let_$x");
ok(
message,
`frame variable "$x" was not overridden while paused in the debugger`
);
await resume(dbg);
});
add_task(async function () {
// Test the behavior when the variables are declared in the script.
const hud = await openNewTabAndConsole("data:text/html,Nothing");
let message = await executeAndWaitForResultMessage(
hud,
"var $ = 'var_$'; $",
"var_$"
);
ok(message, "$ was not overridden");
message = await executeAndWaitForResultMessage(
hud,
"const $$ = 'const_$$'; $$",
"const_$$"
);
ok(message, "$$ was not overridden");
message = await executeAndWaitForResultMessage(
hud,
"function keys() { return 'function_keys'; } keys()",
"function_keys"
);
ok(message, "keys was not overridden");
// Hoisted variable.
message = await executeAndWaitForResultMessage(
hud,
"{ var clear = 'var_clear'; } clear",
"var_clear"
);
ok(message, "clear was not overridden");
// Hoisted function.
message = await executeAndWaitForResultMessage(
hud,
"{ function help() { return 'function_help'; } } help()",
"function_help"
);
ok(message, "help was not overridden");
// Lexical variables are not hoisted.
message = await executeAndWaitForResultMessage(
hud,
"{ let values = 'let_values'; } typeof values",
"function"
);
ok(message, "values was not overridden because it's not global");
});
add_task(async function () {
// NOTE: Open a new page to use the same binding name again.
const hud = await openNewTabAndConsole("data:text/html,Nothing");
// An assignment on `globalThis` property inside the script doesn't shadow
// the helper binding.
let message = await executeAndWaitForResultMessage(
hud,
"globalThis.values = 'globalThis_values'; typeof values",
"function"
);
ok(message, "values was overridden because it's not declaration");
// Executing `values` again shadows the helper binding, given it exists
// before the execution.
message = await executeAndWaitForResultMessage(
hud,
"values",
"globalThis_values"
);
ok(message, "values was not overridden if it exists before the execution");
});
|
