v8/test/inspector/runtime/console-context.js

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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.
let {session, contextGroup, Protocol} = InspectorTest.start('Tests console.context');
InspectorTest.runAsyncTestSuite([
async function testConsoleContextMethod() {
InspectorTest.log('console.context description:');
var {result:{result}} = await Protocol.Runtime.evaluate({
expression: 'console.context'});
InspectorTest.logMessage(result);
[console] Proper type conversions in console builtins. This updates the following set of console builtins in V8 to match the Console Standard (https://console.spec.whatwg.org) with respect to (potentially side effecting) type conversions: - console.debug - console.error - console.info - console.log - console.trace - console.warn - console.group - console.groupCollapsed - console.assert The V8 implementation only performs the type conversions and updates the arguments in-place with the results from the %String% constructor, %parseInt%, or %parseFloat% invocations. The actual formatting is still left completely to the debugger front-end. To give a concrete example, the following code ```js const msgFmt = { toString() { return 'Message %i' } }; console.log('LOG: %s`, msgFmt, 42); ``` sends the following parameters to the debugger front-end ```js ["LOG: %s", "Message %i", 42] ``` and it's then the job of the front-end to perform the actual string substitutions. It's also worth calling out that the console builtins are only concerned with %s, %f, %d, and %i formatting specifiers, since these are the only ones that trigger type conversions, and %o, %O, and %c can only be implemented in a meaningful way at a higher level. Fixed: chromium:1277944 Bug: chromium:1282076 Doc: https://bit.ly/v8-proper-console-type-conversions Spec: https://console.spec.whatwg.org Change-Id: I0996680811aa96236bd0d879e4a11101629ef1a7 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3352118 Reviewed-by: Kim-Anh Tran <kimanh@chromium.org> Auto-Submit: Benedikt Meurer <bmeurer@chromium.org> Reviewed-by: Igor Sheludko <ishell@chromium.org> Commit-Queue: Igor Sheludko <ishell@chromium.org> Cr-Commit-Position: refs/heads/main@{#78432}
2021-12-22 11:25:21 +00:00
// Enumerate the methods alpha-sorted to make the test
// independent of the (unspecified) enumeration order
// of console.context() methods.
InspectorTest.log('console.context() methods:');
[console] Proper type conversions in console builtins. This updates the following set of console builtins in V8 to match the Console Standard (https://console.spec.whatwg.org) with respect to (potentially side effecting) type conversions: - console.debug - console.error - console.info - console.log - console.trace - console.warn - console.group - console.groupCollapsed - console.assert The V8 implementation only performs the type conversions and updates the arguments in-place with the results from the %String% constructor, %parseInt%, or %parseFloat% invocations. The actual formatting is still left completely to the debugger front-end. To give a concrete example, the following code ```js const msgFmt = { toString() { return 'Message %i' } }; console.log('LOG: %s`, msgFmt, 42); ``` sends the following parameters to the debugger front-end ```js ["LOG: %s", "Message %i", 42] ``` and it's then the job of the front-end to perform the actual string substitutions. It's also worth calling out that the console builtins are only concerned with %s, %f, %d, and %i formatting specifiers, since these are the only ones that trigger type conversions, and %o, %O, and %c can only be implemented in a meaningful way at a higher level. Fixed: chromium:1277944 Bug: chromium:1282076 Doc: https://bit.ly/v8-proper-console-type-conversions Spec: https://console.spec.whatwg.org Change-Id: I0996680811aa96236bd0d879e4a11101629ef1a7 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3352118 Reviewed-by: Kim-Anh Tran <kimanh@chromium.org> Auto-Submit: Benedikt Meurer <bmeurer@chromium.org> Reviewed-by: Igor Sheludko <ishell@chromium.org> Commit-Queue: Igor Sheludko <ishell@chromium.org> Cr-Commit-Position: refs/heads/main@{#78432}
2021-12-22 11:25:21 +00:00
var {result: {result: {value}}} = await Protocol.Runtime.evaluate({
expression: 'Object.keys(console.context()).sort()',
returnByValue: true
});
InspectorTest.logMessage(value);
},
async function testDefaultConsoleContext() {
await Protocol.Runtime.enable();
Protocol.Runtime.evaluate({expression: 'console.log(239)'});
var {params:{context}} = await Protocol.Runtime.onceConsoleAPICalled();
InspectorTest.log(context);
Protocol.Runtime.evaluate({expression: 'console.info(239)'});
var {params:{context}} = await Protocol.Runtime.onceConsoleAPICalled();
InspectorTest.log(context);
Protocol.Runtime.evaluate({expression: 'console.debug(239)'});
var {params:{context}} = await Protocol.Runtime.onceConsoleAPICalled();
InspectorTest.log(context);
await Protocol.Runtime.evaluate({expression: 'console.clear()'});
await Protocol.Runtime.disable();
},
async function testAnonymousConsoleContext() {
await Protocol.Runtime.enable();
Protocol.Runtime.evaluate({expression: 'console.context().log(239)'});
var {params:{context}} = await Protocol.Runtime.onceConsoleAPICalled();
InspectorTest.log(context);
Protocol.Runtime.evaluate({expression: 'console.context().info(239)'});
var {params:{context}} = await Protocol.Runtime.onceConsoleAPICalled();
InspectorTest.log(context);
Protocol.Runtime.evaluate({expression: 'console.context().debug(239)'});
var {params:{context}} = await Protocol.Runtime.onceConsoleAPICalled();
InspectorTest.log(context);
await Protocol.Runtime.evaluate({expression: 'console.context().clear()'});
await Protocol.Runtime.disable();
},
async function testNamedConsoleContext() {
await Protocol.Runtime.enable();
Protocol.Runtime.evaluate({expression: `
var context = console.context('named-context');
context.log(239);
context.info(239);
context.debug(239);
`});
var {params:{context}} = await Protocol.Runtime.onceConsoleAPICalled();
InspectorTest.log(context);
var {params:{context}} = await Protocol.Runtime.onceConsoleAPICalled();
InspectorTest.log(context);
var {params:{context}} = await Protocol.Runtime.onceConsoleAPICalled();
InspectorTest.log(context);
await Protocol.Runtime.evaluate({expression: 'console.clear()'});
await Protocol.Runtime.disable();
},
async function testTwoConsoleContextsWithTheSameName() {
await Protocol.Runtime.enable();
Protocol.Runtime.evaluate({expression: 'console.context(\'named-context\').log(239)'});
var {params:{context}} = await Protocol.Runtime.onceConsoleAPICalled();
InspectorTest.log(context);
Protocol.Runtime.evaluate({expression: 'console.context(\'named-context\').log(239)'});
var {params:{context}} = await Protocol.Runtime.onceConsoleAPICalled();
InspectorTest.log(context);
await Protocol.Runtime.evaluate({expression: 'console.clear()'});
await Protocol.Runtime.disable();
},
async function testConsoleCountInDifferentConsoleContexts() {
await Protocol.Runtime.enable();
Protocol.Runtime.evaluate({expression: 'console.context(\'named-context\').count(239)'});
var {params:{args}} = await Protocol.Runtime.onceConsoleAPICalled();
InspectorTest.logMessage(args);
Protocol.Runtime.evaluate({expression: 'console.context(\'named-context\').count(239)'});
var {params:{args}} = await Protocol.Runtime.onceConsoleAPICalled();
InspectorTest.logMessage(args);
await Protocol.Runtime.evaluate({expression: 'console.clear()'});
await Protocol.Runtime.disable();
},
async function testConsoleCountForNamedConsoleContext() {
await Protocol.Runtime.enable();
Protocol.Runtime.evaluate({expression: `
var context = console.context('named-context');
context.count(239);
context.count(239);
`});
var {params:{args}} = await Protocol.Runtime.onceConsoleAPICalled();
InspectorTest.logMessage(args);
var {params:{args}} = await Protocol.Runtime.onceConsoleAPICalled();
InspectorTest.logMessage(args);
await Protocol.Runtime.evaluate({expression: 'console.clear()'});
await Protocol.Runtime.disable();
}
]);