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// Copyright 2017 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// TODO(kozyatinskiy): fix or remove it later with new stack traces it's almost
// imposible to hit limit.
let {session, contextGroup, Protocol} = InspectorTest.start('Checks that we report not more then maxDepth call chains.');
contextGroup.addScript(`
function promisesChain(num) {
var p = Promise.resolve();
for (var i = 0; i < num - 1; ++i) {
p = p.then(() => 42);
}
return p;
}
`);
Protocol.Debugger.enable();
InspectorTest.runAsyncTestSuite([
async function testPaused() {
let callback = '() => { debugger; }';
startTest({ generated: 8, limit: 16, callback});
dumpCaptured((await Protocol.Debugger.oncePaused()).params.asyncStackTrace);
await Protocol.Debugger.resume();
startTest({ generated: 8, limit: 8, callback});
dumpCaptured((await Protocol.Debugger.oncePaused()).params.asyncStackTrace);
await Protocol.Debugger.resume();
startTest({ generated: 8, limit: 7, callback});
dumpCaptured((await Protocol.Debugger.oncePaused()).params.asyncStackTrace);
await Protocol.Debugger.resume();
startTest({ generated: 8, limit: 0, callback});
dumpCaptured((await Protocol.Debugger.oncePaused()).params.asyncStackTrace);
await Protocol.Debugger.resume();
},
async function testConsoleTrace() {
await Protocol.Runtime.enable();
let callback = '() => { console.trace(42); }';
startTest({ generated: 8, limit: 16, callback});
let msg = await Protocol.Runtime.onceConsoleAPICalled();
dumpCaptured(msg.params.stackTrace.parent);
startTest({ generated: 8, limit: 8, callback});
msg = await Protocol.Runtime.onceConsoleAPICalled();
dumpCaptured(msg.params.stackTrace.parent);
startTest({ generated: 8, limit: 7, callback});
msg = await Protocol.Runtime.onceConsoleAPICalled();
dumpCaptured(msg.params.stackTrace.parent);
startTest({ generated: 8, limit: 0, callback});
msg = await Protocol.Runtime.onceConsoleAPICalled();
dumpCaptured(msg.params.stackTrace.parent);
await Protocol.Runtime.disable();
}
]);
function startTest(params) {
InspectorTest.log('Actual call chain length: ' + params.generated);
InspectorTest.log('setAsyncCallStackDepth(maxDepth): ' + params.limit);
Protocol.Debugger.setAsyncCallStackDepth({maxDepth: params.limit});
Protocol.Runtime.evaluate({expression:
`promisesChain(${params.generated}).then(${params.callback})`});
}
function dumpCaptured(stack) {
let count = 0;
while (stack) {
++count;
stack = stack.parent;
}
InspectorTest.log('reported: ' + count + '\n');
}
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