/* 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 . */
// Tests tracing all function returns
"use strict";
add_task(async function testTracingFunctionReturn() {
await pushPref("devtools.debugger.features.javascript-tracing", true);
const jsCode = `async function foo() { nullReturn(); falseReturn(); await new Promise(r => setTimeout(r, 0)); return bar(); }; function nullReturn() { return null; } function falseReturn() { return false; } function bar() { return 42; }; function throwingFunction() { throw new Error("the exception") }`;
const dbg = await initDebuggerWithAbsoluteURL(
"data:text/html," +
encodeURIComponent(``)
);
await openContextMenuInDebugger(dbg, "trace");
let toggled = waitForDispatch(
dbg.store,
"TOGGLE_JAVASCRIPT_TRACING_FUNCTION_RETURN"
);
selectContextMenuItem(dbg, `#debugger-trace-menu-item-function-return`);
await toggled;
ok(true, "Toggled the trace of function returns");
await clickElement(dbg, "trace");
const topLevelThreadActorID =
dbg.toolbox.commands.targetCommand.targetFront.threadFront.actorID;
info("Wait for tracing to be enabled");
await waitForState(dbg, () => {
return dbg.selectors.getIsThreadCurrentlyTracing(topLevelThreadActorID);
});
invokeInTab("foo");
await hasConsoleMessage(dbg, "⟶ interpreter λ foo");
await hasConsoleMessage(dbg, "⟶ interpreter λ bar");
await hasConsoleMessage(dbg, "⟵ λ bar");
await hasConsoleMessage(dbg, "⟵ λ foo");
await clickElement(dbg, "trace");
info("Wait for tracing to be disabled");
await waitForState(dbg, () => {
return !dbg.selectors.getIsThreadCurrentlyTracing(topLevelThreadActorID);
});
await openContextMenuInDebugger(dbg, "trace");
toggled = waitForDispatch(dbg.store, "TOGGLE_JAVASCRIPT_TRACING_VALUES");
selectContextMenuItem(dbg, `#debugger-trace-menu-item-log-values`);
await toggled;
ok(true, "Toggled the log values setting");
await clickElement(dbg, "trace");
info("Wait for tracing to be re-enabled with logging of returned values");
await waitForState(dbg, () => {
return dbg.selectors.getIsThreadCurrentlyTracing(topLevelThreadActorID);
});
invokeInTab("foo");
await hasConsoleMessage(dbg, "⟶ interpreter λ foo");
await hasConsoleMessage(dbg, "⟶ interpreter λ bar");
await hasConsoleMessage(dbg, "⟵ λ bar return 42");
await hasConsoleMessage(dbg, "⟶ interpreter λ nullReturn");
await hasConsoleMessage(dbg, "⟵ λ nullReturn return null");
await hasConsoleMessage(dbg, "⟶ interpreter λ falseReturn");
await hasConsoleMessage(dbg, "⟵ λ falseReturn return false");
await hasConsoleMessage(
dbg,
`⟵ λ foo return \nPromise { : "fulfilled", : 42 }`
);
invokeInTab("throwingFunction").catch(() => {});
await hasConsoleMessage(
dbg,
`⟵ λ throwingFunction throw \nError: the exception`
);
info("Stop tracing");
await clickElement(dbg, "trace");
await waitForState(dbg, () => {
return !dbg.selectors.getIsThreadCurrentlyTracing(topLevelThreadActorID);
});
info("Toggle the two settings to the default value");
await openContextMenuInDebugger(dbg, "trace");
toggled = waitForDispatch(dbg.store, "TOGGLE_JAVASCRIPT_TRACING_VALUES");
selectContextMenuItem(dbg, `#debugger-trace-menu-item-log-values`);
await toggled;
await openContextMenuInDebugger(dbg, "trace");
toggled = waitForDispatch(
dbg.store,
"TOGGLE_JAVASCRIPT_TRACING_FUNCTION_RETURN"
);
selectContextMenuItem(dbg, `#debugger-trace-menu-item-function-return`);
await toggled;
// Reset the trace on next interaction setting
Services.prefs.clearUserPref(
"devtools.debugger.javascript-tracing-on-next-interaction"
);
});