/**
* @license
* Copyright 2017 Google Inc.
* SPDX-License-Identifier: Apache-2.0
*/
import type { Protocol } from 'devtools-protocol';
import type { CDPSession } from '../api/CDPSession.js';
/**
* The CoverageEntry class represents one entry of the coverage report.
* @public
*/
export interface CoverageEntry {
/**
* The URL of the style sheet or script.
*/
url: string;
/**
* The content of the style sheet or script.
*/
text: string;
/**
* The covered range as start and end positions.
*/
ranges: Array<{
start: number;
end: number;
}>;
}
/**
* The CoverageEntry class for JavaScript
* @public
*/
export interface JSCoverageEntry extends CoverageEntry {
/**
* Raw V8 script coverage entry.
*/
rawScriptCoverage?: Protocol.Profiler.ScriptCoverage;
}
/**
* Set of configurable options for JS coverage.
* @public
*/
export interface JSCoverageOptions {
/**
* Whether to reset coverage on every navigation.
*/
resetOnNavigation?: boolean;
/**
* Whether anonymous scripts generated by the page should be reported.
*/
reportAnonymousScripts?: boolean;
/**
* Whether the result includes raw V8 script coverage entries.
*/
includeRawScriptCoverage?: boolean;
/**
* Whether to collect coverage information at the block level.
* If true, coverage will be collected at the block level (this is the default).
* If false, coverage will be collected at the function level.
*/
useBlockCoverage?: boolean;
}
/**
* Set of configurable options for CSS coverage.
* @public
*/
export interface CSSCoverageOptions {
/**
* Whether to reset coverage on every navigation.
*/
resetOnNavigation?: boolean;
}
/**
* The Coverage class provides methods to gather information about parts of
* JavaScript and CSS that were used by the page.
*
* @remarks
* To output coverage in a form consumable by {@link https://github.com/istanbuljs | Istanbul},
* see {@link https://github.com/istanbuljs/puppeteer-to-istanbul | puppeteer-to-istanbul}.
*
* @example
* An example of using JavaScript and CSS coverage to get percentage of initially
* executed code:
*
* ```ts
* // Enable both JavaScript and CSS coverage
* await Promise.all([
* page.coverage.startJSCoverage(),
* page.coverage.startCSSCoverage(),
* ]);
* // Navigate to page
* await page.goto('https://example.com');
* // Disable both JavaScript and CSS coverage
* const [jsCoverage, cssCoverage] = await Promise.all([
* page.coverage.stopJSCoverage(),
* page.coverage.stopCSSCoverage(),
* ]);
* let totalBytes = 0;
* let usedBytes = 0;
* const coverage = [...jsCoverage, ...cssCoverage];
* for (const entry of coverage) {
* totalBytes += entry.text.length;
* for (const range of entry.ranges) usedBytes += range.end - range.start - 1;
* }
* console.log(`Bytes used: ${(usedBytes / totalBytes) * 100}%`);
* ```
*
* @public
*/
export declare class Coverage {
#private;
/**
* @internal
*/
constructor(client: CDPSession);
/**
* @internal
*/
updateClient(client: CDPSession): void;
/**
* @param options - Set of configurable options for coverage defaults to
* `resetOnNavigation : true, reportAnonymousScripts : false,`
* `includeRawScriptCoverage : false, useBlockCoverage : true`
* @returns Promise that resolves when coverage is started.
*
* @remarks
* Anonymous scripts are ones that don't have an associated url. These are
* scripts that are dynamically created on the page using `eval` or
* `new Function`. If `reportAnonymousScripts` is set to `true`, anonymous
* scripts URL will start with `debugger://VM` (unless a magic //# sourceURL
* comment is present, in which case that will the be URL).
*/
startJSCoverage(options?: JSCoverageOptions): Promise<void>;
/**
* Promise that resolves to the array of coverage reports for
* all scripts.
*
* @remarks
* JavaScript Coverage doesn't include anonymous scripts by default.
* However, scripts with sourceURLs are reported.
*/
stopJSCoverage(): Promise<JSCoverageEntry[]>;
/**
* @param options - Set of configurable options for coverage, defaults to
* `resetOnNavigation : true`
* @returns Promise that resolves when coverage is started.
*/
startCSSCoverage(options?: CSSCoverageOptions): Promise<void>;
/**
* Promise that resolves to the array of coverage reports
* for all stylesheets.
*
* @remarks
* CSS Coverage doesn't include dynamically injected style tags
* without sourceURLs.
*/
stopCSSCoverage(): Promise<CoverageEntry[]>;
}
/**
* @public
*/
export declare class JSCoverage {
#private;
/**
* @internal
*/
constructor(client: CDPSession);
/**
* @internal
*/
updateClient(client: CDPSession): void;
start(options?: {
resetOnNavigation?: boolean;
reportAnonymousScripts?: boolean;
includeRawScriptCoverage?: boolean;
useBlockCoverage?: boolean;
}): Promise<void>;
stop(): Promise<JSCoverageEntry[]>;
}
/**
* @public
*/
export declare class CSSCoverage {
#private;
constructor(client: CDPSession);
/**
* @internal
*/
updateClient(client: CDPSession): void;
start(options?: {
resetOnNavigation?: boolean;
}): Promise<void>;
stop(): Promise<CoverageEntry[]>;
}
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