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"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.CRCoverage = void 0;
var _eventsHelper = require("../../utils/eventsHelper");
var _utils = require("../../utils");
/**
* Copyright 2017 Google Inc. All rights reserved.
* Modifications copyright (c) Microsoft Corporation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
class CRCoverage {
constructor(client) {
this._jsCoverage = void 0;
this._cssCoverage = void 0;
this._jsCoverage = new JSCoverage(client);
this._cssCoverage = new CSSCoverage(client);
}
async startJSCoverage(options) {
return await this._jsCoverage.start(options);
}
async stopJSCoverage() {
return await this._jsCoverage.stop();
}
async startCSSCoverage(options) {
return await this._cssCoverage.start(options);
}
async stopCSSCoverage() {
return await this._cssCoverage.stop();
}
}
exports.CRCoverage = CRCoverage;
class JSCoverage {
constructor(client) {
this._client = void 0;
this._enabled = void 0;
this._scriptIds = void 0;
this._scriptSources = void 0;
this._eventListeners = void 0;
this._resetOnNavigation = void 0;
this._reportAnonymousScripts = false;
this._client = client;
this._enabled = false;
this._scriptIds = new Set();
this._scriptSources = new Map();
this._eventListeners = [];
this._resetOnNavigation = false;
}
async start(options) {
(0, _utils.assert)(!this._enabled, 'JSCoverage is already enabled');
const {
resetOnNavigation = true,
reportAnonymousScripts = false
} = options;
this._resetOnNavigation = resetOnNavigation;
this._reportAnonymousScripts = reportAnonymousScripts;
this._enabled = true;
this._scriptIds.clear();
this._scriptSources.clear();
this._eventListeners = [_eventsHelper.eventsHelper.addEventListener(this._client, 'Debugger.scriptParsed', this._onScriptParsed.bind(this)), _eventsHelper.eventsHelper.addEventListener(this._client, 'Runtime.executionContextsCleared', this._onExecutionContextsCleared.bind(this)), _eventsHelper.eventsHelper.addEventListener(this._client, 'Debugger.paused', this._onDebuggerPaused.bind(this))];
await Promise.all([this._client.send('Profiler.enable'), this._client.send('Profiler.startPreciseCoverage', {
callCount: true,
detailed: true
}), this._client.send('Debugger.enable'), this._client.send('Debugger.setSkipAllPauses', {
skip: true
})]);
}
_onDebuggerPaused() {
this._client.send('Debugger.resume');
}
_onExecutionContextsCleared() {
if (!this._resetOnNavigation) return;
this._scriptIds.clear();
this._scriptSources.clear();
}
async _onScriptParsed(event) {
this._scriptIds.add(event.scriptId);
// Ignore other anonymous scripts unless the reportAnonymousScripts option is true.
if (!event.url && !this._reportAnonymousScripts) return;
// This might fail if the page has already navigated away.
const response = await this._client._sendMayFail('Debugger.getScriptSource', {
scriptId: event.scriptId
});
if (response) this._scriptSources.set(event.scriptId, response.scriptSource);
}
async stop() {
(0, _utils.assert)(this._enabled, 'JSCoverage is not enabled');
this._enabled = false;
const [profileResponse] = await Promise.all([this._client.send('Profiler.takePreciseCoverage'), this._client.send('Profiler.stopPreciseCoverage'), this._client.send('Profiler.disable'), this._client.send('Debugger.disable')]);
_eventsHelper.eventsHelper.removeEventListeners(this._eventListeners);
const coverage = {
entries: []
};
for (const entry of profileResponse.result) {
if (!this._scriptIds.has(entry.scriptId)) continue;
if (!entry.url && !this._reportAnonymousScripts) continue;
const source = this._scriptSources.get(entry.scriptId);
if (source) coverage.entries.push({
...entry,
source
});else coverage.entries.push(entry);
}
return coverage;
}
}
class CSSCoverage {
constructor(client) {
this._client = void 0;
this._enabled = void 0;
this._stylesheetURLs = void 0;
this._stylesheetSources = void 0;
this._eventListeners = void 0;
this._resetOnNavigation = void 0;
this._client = client;
this._enabled = false;
this._stylesheetURLs = new Map();
this._stylesheetSources = new Map();
this._eventListeners = [];
this._resetOnNavigation = false;
}
async start(options) {
(0, _utils.assert)(!this._enabled, 'CSSCoverage is already enabled');
const {
resetOnNavigation = true
} = options;
this._resetOnNavigation = resetOnNavigation;
this._enabled = true;
this._stylesheetURLs.clear();
this._stylesheetSources.clear();
this._eventListeners = [_eventsHelper.eventsHelper.addEventListener(this._client, 'CSS.styleSheetAdded', this._onStyleSheet.bind(this)), _eventsHelper.eventsHelper.addEventListener(this._client, 'Runtime.executionContextsCleared', this._onExecutionContextsCleared.bind(this))];
await Promise.all([this._client.send('DOM.enable'), this._client.send('CSS.enable'), this._client.send('CSS.startRuleUsageTracking')]);
}
_onExecutionContextsCleared() {
if (!this._resetOnNavigation) return;
this._stylesheetURLs.clear();
this._stylesheetSources.clear();
}
async _onStyleSheet(event) {
const header = event.header;
// Ignore anonymous scripts
if (!header.sourceURL) return;
// This might fail if the page has already navigated away.
const response = await this._client._sendMayFail('CSS.getStyleSheetText', {
styleSheetId: header.styleSheetId
});
if (response) {
this._stylesheetURLs.set(header.styleSheetId, header.sourceURL);
this._stylesheetSources.set(header.styleSheetId, response.text);
}
}
async stop() {
(0, _utils.assert)(this._enabled, 'CSSCoverage is not enabled');
this._enabled = false;
const ruleTrackingResponse = await this._client.send('CSS.stopRuleUsageTracking');
await Promise.all([this._client.send('CSS.disable'), this._client.send('DOM.disable')]);
_eventsHelper.eventsHelper.removeEventListeners(this._eventListeners);
// aggregate by styleSheetId
const styleSheetIdToCoverage = new Map();
for (const entry of ruleTrackingResponse.ruleUsage) {
let ranges = styleSheetIdToCoverage.get(entry.styleSheetId);
if (!ranges) {
ranges = [];
styleSheetIdToCoverage.set(entry.styleSheetId, ranges);
}
ranges.push({
startOffset: entry.startOffset,
endOffset: entry.endOffset,
count: entry.used ? 1 : 0
});
}
const coverage = {
entries: []
};
for (const styleSheetId of this._stylesheetURLs.keys()) {
const url = this._stylesheetURLs.get(styleSheetId);
const text = this._stylesheetSources.get(styleSheetId);
const ranges = convertToDisjointRanges(styleSheetIdToCoverage.get(styleSheetId) || []);
coverage.entries.push({
url,
ranges,
text
});
}
return coverage;
}
}
function convertToDisjointRanges(nestedRanges) {
const points = [];
for (const range of nestedRanges) {
points.push({
offset: range.startOffset,
type: 0,
range
});
points.push({
offset: range.endOffset,
type: 1,
range
});
}
// Sort points to form a valid parenthesis sequence.
points.sort((a, b) => {
// Sort with increasing offsets.
if (a.offset !== b.offset) return a.offset - b.offset;
// All "end" points should go before "start" points.
if (a.type !== b.type) return b.type - a.type;
const aLength = a.range.endOffset - a.range.startOffset;
const bLength = b.range.endOffset - b.range.startOffset;
// For two "start" points, the one with longer range goes first.
if (a.type === 0) return bLength - aLength;
// For two "end" points, the one with shorter range goes first.
return aLength - bLength;
});
const hitCountStack = [];
const results = [];
let lastOffset = 0;
// Run scanning line to intersect all ranges.
for (const point of points) {
if (hitCountStack.length && lastOffset < point.offset && hitCountStack[hitCountStack.length - 1] > 0) {
const lastResult = results.length ? results[results.length - 1] : null;
if (lastResult && lastResult.end === lastOffset) lastResult.end = point.offset;else results.push({
start: lastOffset,
end: point.offset
});
}
lastOffset = point.offset;
if (point.type === 0) hitCountStack.push(point.range.count);else hitCountStack.pop();
}
// Filter out empty ranges.
return results.filter(range => range.end - range.start > 1);
}