2017-04-18 15:53:08 +00:00
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// Copyright 2017 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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2017-05-19 00:35:45 +00:00
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let {session, contextGroup, Protocol} = InspectorTest.start('Checks that we drop old async call chains.');
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2017-04-18 15:53:08 +00:00
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Protocol.Debugger.enable();
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Protocol.Runtime.enable();
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InspectorTest.runAsyncTestSuite([
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async function testInfrastructure() {
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Protocol.Debugger.setAsyncCallStackDepth({maxDepth: 128});
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await setMaxAsyncTaskStacks(1024);
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runWithAsyncChainPromise(1, 'console.trace(42)');
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dumpAsyncChainLength(await Protocol.Runtime.onceConsoleAPICalled());
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await setMaxAsyncTaskStacks(1024);
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runWithAsyncChainPromise(2, 'console.trace(42)');
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dumpAsyncChainLength(await Protocol.Runtime.onceConsoleAPICalled());
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await setMaxAsyncTaskStacks(1024);
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runWithAsyncChainPromise(5, 'console.trace(42)');
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dumpAsyncChainLength(await Protocol.Runtime.onceConsoleAPICalled());
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await setMaxAsyncTaskStacks(1024);
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runWithAsyncChainSetTimeout(1, 'console.trace(42)');
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dumpAsyncChainLength(await Protocol.Runtime.onceConsoleAPICalled());
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await setMaxAsyncTaskStacks(1024);
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runWithAsyncChainSetTimeout(2, 'console.trace(42)');
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dumpAsyncChainLength(await Protocol.Runtime.onceConsoleAPICalled());
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await setMaxAsyncTaskStacks(1024);
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runWithAsyncChainSetTimeout(5, 'console.trace(42)');
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dumpAsyncChainLength(await Protocol.Runtime.onceConsoleAPICalled());
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},
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async function testZeroLimit() {
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const limit = 0;
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Protocol.Debugger.setAsyncCallStackDepth({maxDepth: 128});
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await setMaxAsyncTaskStacks(limit);
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runWithAsyncChainPromise(1, 'console.trace(42)');
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dumpAsyncChainLength(await Protocol.Runtime.onceConsoleAPICalled());
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await setMaxAsyncTaskStacks(limit);
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runWithAsyncChainPromise(2, 'console.trace(42)');
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dumpAsyncChainLength(await Protocol.Runtime.onceConsoleAPICalled());
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await setMaxAsyncTaskStacks(limit);
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runWithAsyncChainSetTimeout(1, 'console.trace(42)');
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dumpAsyncChainLength(await Protocol.Runtime.onceConsoleAPICalled());
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await setMaxAsyncTaskStacks(limit);
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runWithAsyncChainSetTimeout(2, 'console.trace(42)');
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dumpAsyncChainLength(await Protocol.Runtime.onceConsoleAPICalled());
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},
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async function testOneLimit() {
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const limit = 1;
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Protocol.Debugger.setAsyncCallStackDepth({maxDepth: 128});
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await setMaxAsyncTaskStacks(limit);
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runWithAsyncChainPromise(1, 'console.trace(42)');
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dumpAsyncChainLength(await Protocol.Runtime.onceConsoleAPICalled());
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await setMaxAsyncTaskStacks(limit);
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runWithAsyncChainPromise(2, 'console.trace(42)');
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dumpAsyncChainLength(await Protocol.Runtime.onceConsoleAPICalled());
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await setMaxAsyncTaskStacks(limit);
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runWithAsyncChainSetTimeout(1, 'console.trace(42)');
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dumpAsyncChainLength(await Protocol.Runtime.onceConsoleAPICalled());
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await setMaxAsyncTaskStacks(limit);
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runWithAsyncChainSetTimeout(2, 'console.trace(42)');
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dumpAsyncChainLength(await Protocol.Runtime.onceConsoleAPICalled());
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},
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async function testTwoLimit() {
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const limit = 2;
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Protocol.Debugger.setAsyncCallStackDepth({maxDepth: 128});
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await setMaxAsyncTaskStacks(limit);
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runWithAsyncChainPromise(1, 'console.trace(42)');
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dumpAsyncChainLength(await Protocol.Runtime.onceConsoleAPICalled());
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await setMaxAsyncTaskStacks(limit);
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runWithAsyncChainPromise(2, 'console.trace(42)');
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dumpAsyncChainLength(await Protocol.Runtime.onceConsoleAPICalled());
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await setMaxAsyncTaskStacks(limit);
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runWithAsyncChainPromise(3, 'console.trace(42)');
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dumpAsyncChainLength(await Protocol.Runtime.onceConsoleAPICalled());
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await setMaxAsyncTaskStacks(limit);
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runWithAsyncChainSetTimeout(1, 'console.trace(42)');
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dumpAsyncChainLength(await Protocol.Runtime.onceConsoleAPICalled());
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await setMaxAsyncTaskStacks(limit);
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runWithAsyncChainSetTimeout(2, 'console.trace(42)');
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dumpAsyncChainLength(await Protocol.Runtime.onceConsoleAPICalled());
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await setMaxAsyncTaskStacks(limit);
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runWithAsyncChainSetTimeout(3, 'console.trace(42)');
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dumpAsyncChainLength(await Protocol.Runtime.onceConsoleAPICalled());
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},
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async function testMoreThanTwoLimit() {
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for (let limit = 3; limit <= 7; ++limit) {
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Protocol.Debugger.setAsyncCallStackDepth({maxDepth: 128});
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await setMaxAsyncTaskStacks(limit);
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runWithAsyncChainPromise(1, 'console.trace(42)');
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dumpAsyncChainLength(await Protocol.Runtime.onceConsoleAPICalled());
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await setMaxAsyncTaskStacks(limit);
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runWithAsyncChainPromise(2, 'console.trace(42)');
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dumpAsyncChainLength(await Protocol.Runtime.onceConsoleAPICalled());
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await setMaxAsyncTaskStacks(limit);
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runWithAsyncChainPromise(3, 'console.trace(42)');
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dumpAsyncChainLength(await Protocol.Runtime.onceConsoleAPICalled());
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await setMaxAsyncTaskStacks(limit);
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runWithAsyncChainSetTimeout(1, 'console.trace(42)');
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dumpAsyncChainLength(await Protocol.Runtime.onceConsoleAPICalled());
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await setMaxAsyncTaskStacks(limit);
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runWithAsyncChainSetTimeout(2, 'console.trace(42)');
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dumpAsyncChainLength(await Protocol.Runtime.onceConsoleAPICalled());
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await setMaxAsyncTaskStacks(limit);
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runWithAsyncChainSetTimeout(3, 'console.trace(42)');
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dumpAsyncChainLength(await Protocol.Runtime.onceConsoleAPICalled());
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}
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},
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]);
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function runWithAsyncChainPromise(len, source) {
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InspectorTest.log(`Run expression '${source}' with async chain len: ${len}`);
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2017-11-21 15:42:43 +00:00
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let asyncCall = `(function asyncCall(num) {
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if (num === 0) {
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${source};
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return;
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}
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Promise.resolve().then(() => asyncCall(num - 1));
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})(${len})`;
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Protocol.Runtime.evaluate({expression: asyncCall});
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2017-04-18 15:53:08 +00:00
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}
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function runWithAsyncChainSetTimeout(len, source) {
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InspectorTest.log(`Run expression '${source}' with async chain len: ${len}`);
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let setTimeoutPrefix = '() => setTimeout(';
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let setTimeoutSuffix = ', 0)';
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Protocol.Runtime.evaluate({
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expression: `setTimeout(${setTimeoutPrefix.repeat(len - 1)}'${source}'${setTimeoutSuffix.repeat(len - 1)}, 0)`
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});
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}
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function dumpAsyncChainLength(message) {
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let stackTrace = message.params.asyncStackTrace || message.params.stackTrace.parent;
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let asyncChainCount = 0;
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while (stackTrace) {
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++asyncChainCount;
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stackTrace = stackTrace.parent;
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}
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InspectorTest.log(`actual async chain len: ${asyncChainCount}\n`);
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}
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async function setMaxAsyncTaskStacks(max) {
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2017-04-21 23:41:07 +00:00
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let expression = `inspector.setMaxAsyncTaskStacks(${max})`;
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2017-04-18 15:53:08 +00:00
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InspectorTest.log(expression);
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await Protocol.Runtime.evaluate({expression});
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}
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