playwright/packages/playwright-test/src/reporters/base.ts
2023-02-12 10:00:40 -08:00

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/**
* 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.
*/
import { colors, ms as milliseconds, parseStackTraceLine } from 'playwright-core/lib/utilsBundle';
import fs from 'fs';
import path from 'path';
import type { FullConfig, TestCase, Suite, TestResult, TestError, FullResult, TestStep, Location, Reporter } from '../../types/testReporter';
import type { FullConfigInternal } from '../common/types';
import { codeFrameColumns } from '../common/babelBundle';
import { monotonicTime } from 'playwright-core/lib/utils';
export type TestResultOutput = { chunk: string | Buffer, type: 'stdout' | 'stderr' };
export const kOutputSymbol = Symbol('output');
type Annotation = {
title: string;
message: string;
location?: Location;
};
type ErrorDetails = {
message: string;
location?: Location;
};
type TestSummary = {
skipped: number;
expected: number;
interrupted: TestCase[];
unexpected: TestCase[];
flaky: TestCase[];
failuresToPrint: TestCase[];
fatalErrors: TestError[];
};
export class BaseReporter implements Reporter {
duration = 0;
config!: FullConfigInternal;
suite!: Suite;
totalTestCount = 0;
result!: FullResult;
private fileDurations = new Map<string, number>();
private monotonicStartTime: number = 0;
private _omitFailures: boolean;
private readonly _ttyWidthForTest: number;
private _fatalErrors: TestError[] = [];
constructor(options: { omitFailures?: boolean } = {}) {
this._omitFailures = options.omitFailures || false;
this._ttyWidthForTest = parseInt(process.env.PWTEST_TTY_WIDTH || '', 10);
}
onBegin(config: FullConfig, suite: Suite) {
this.monotonicStartTime = monotonicTime();
this.config = config as FullConfigInternal;
this.suite = suite;
this.totalTestCount = suite.allTests().length;
}
onStdOut(chunk: string | Buffer, test?: TestCase, result?: TestResult) {
this._appendOutput({ chunk, type: 'stdout' }, result);
}
onStdErr(chunk: string | Buffer, test?: TestCase, result?: TestResult) {
this._appendOutput({ chunk, type: 'stderr' }, result);
}
private _appendOutput(output: TestResultOutput, result: TestResult | undefined) {
if (!result)
return;
(result as any)[kOutputSymbol] = (result as any)[kOutputSymbol] || [];
(result as any)[kOutputSymbol].push(output);
}
onTestEnd(test: TestCase, result: TestResult) {
// Ignore any tests that are run in parallel.
for (let suite: Suite | undefined = test.parent; suite; suite = suite.parent) {
if ((suite as any)._parallelMode === 'parallel')
return;
}
const projectName = test.titlePath()[1];
const relativePath = relativeTestPath(this.config, test);
const fileAndProject = (projectName ? `[${projectName}] ` : '') + relativePath;
const duration = this.fileDurations.get(fileAndProject) || 0;
this.fileDurations.set(fileAndProject, duration + result.duration);
}
onError(error: TestError) {
this._fatalErrors.push(error);
}
async onEnd(result: FullResult) {
this.duration = monotonicTime() - this.monotonicStartTime;
this.result = result;
}
protected ttyWidth() {
return this._ttyWidthForTest || process.stdout.columns || 0;
}
protected fitToScreen(line: string, prefix?: string): string {
const ttyWidth = this.ttyWidth();
if (!ttyWidth) {
// Guard against the case where we cannot determine available width.
return line;
}
return fitToWidth(line, ttyWidth, prefix);
}
protected generateStartingMessage() {
const jobs = Math.min(this.config.workers, this.config._internal.maxConcurrentTestGroups);
const shardDetails = this.config.shard ? `, shard ${this.config.shard.current} of ${this.config.shard.total}` : '';
return '\n' + colors.dim('Running ') + this.totalTestCount + colors.dim(` test${this.totalTestCount !== 1 ? 's' : ''} using `) + jobs + colors.dim(` worker${jobs !== 1 ? 's' : ''}${shardDetails}`);
}
protected getSlowTests(): [string, number][] {
if (!this.config.reportSlowTests)
return [];
const fileDurations = [...this.fileDurations.entries()];
fileDurations.sort((a, b) => b[1] - a[1]);
const count = Math.min(fileDurations.length, this.config.reportSlowTests.max || Number.POSITIVE_INFINITY);
const threshold = this.config.reportSlowTests.threshold;
return fileDurations.filter(([, duration]) => duration > threshold).slice(0, count);
}
protected generateSummaryMessage({ skipped, expected, interrupted, unexpected, flaky, fatalErrors }: TestSummary) {
const tokens: string[] = [];
if (unexpected.length) {
tokens.push(colors.red(` ${unexpected.length} failed`));
for (const test of unexpected)
tokens.push(colors.red(formatTestHeader(this.config, test, ' ')));
}
if (interrupted.length) {
tokens.push(colors.yellow(` ${interrupted.length} interrupted`));
for (const test of interrupted)
tokens.push(colors.yellow(formatTestHeader(this.config, test, ' ')));
}
if (flaky.length) {
tokens.push(colors.yellow(` ${flaky.length} flaky`));
for (const test of flaky)
tokens.push(colors.yellow(formatTestHeader(this.config, test, ' ')));
}
if (skipped)
tokens.push(colors.yellow(` ${skipped} skipped`));
if (expected)
tokens.push(colors.green(` ${expected} passed`) + colors.dim(` (${milliseconds(this.duration)})`));
if (this.result.status === 'timedout')
tokens.push(colors.red(` Timed out waiting ${this.config.globalTimeout / 1000}s for the entire test run`));
if (fatalErrors.length && expected + unexpected.length + interrupted.length + flaky.length > 0)
tokens.push(colors.red(` ${fatalErrors.length === 1 ? '1 error was not a part of any test' : fatalErrors.length + ' errors were not a part of any test'}, see above for details`));
return tokens.join('\n');
}
protected generateSummary(): TestSummary {
let skipped = 0;
let expected = 0;
const interrupted: TestCase[] = [];
const interruptedToPrint: TestCase[] = [];
const unexpected: TestCase[] = [];
const flaky: TestCase[] = [];
this.suite.allTests().forEach(test => {
switch (test.outcome()) {
case 'skipped': {
if (test.results.some(result => result.status === 'interrupted')) {
if (test.results.some(result => !!result.error))
interruptedToPrint.push(test);
interrupted.push(test);
} else {
++skipped;
}
break;
}
case 'expected': ++expected; break;
case 'unexpected': unexpected.push(test); break;
case 'flaky': flaky.push(test); break;
}
});
const failuresToPrint = [...unexpected, ...flaky, ...interruptedToPrint];
return {
skipped,
expected,
interrupted,
unexpected,
flaky,
failuresToPrint,
fatalErrors: this._fatalErrors,
};
}
epilogue(full: boolean) {
const summary = this.generateSummary();
const summaryMessage = this.generateSummaryMessage(summary);
if (full && summary.failuresToPrint.length && !this._omitFailures)
this._printFailures(summary.failuresToPrint);
this._printSlowTests();
this._printSummary(summaryMessage);
}
private _printFailures(failures: TestCase[]) {
console.log('');
failures.forEach((test, index) => {
console.log(formatFailure(this.config, test, {
index: index + 1,
}).message);
});
}
private _printSlowTests() {
const slowTests = this.getSlowTests();
slowTests.forEach(([file, duration]) => {
console.log(colors.yellow(' Slow test file: ') + file + colors.yellow(` (${milliseconds(duration)})`));
});
if (slowTests.length)
console.log(colors.yellow(' Consider splitting slow test files to speed up parallel execution'));
}
private _printSummary(summary: string) {
if (summary.trim())
console.log(summary);
}
willRetry(test: TestCase): boolean {
return test.outcome() === 'unexpected' && test.results.length <= test.retries;
}
}
export function formatFailure(config: FullConfig, test: TestCase, options: {index?: number, includeStdio?: boolean, includeAttachments?: boolean} = {}): {
message: string,
annotations: Annotation[]
} {
const { index, includeStdio, includeAttachments = true } = options;
const lines: string[] = [];
const title = formatTestTitle(config, test);
const annotations: Annotation[] = [];
const header = formatTestHeader(config, test, ' ', index);
lines.push(colors.red(header));
for (const result of test.results) {
const resultLines: string[] = [];
const errors = formatResultFailure(config, test, result, ' ', colors.enabled);
if (!errors.length)
continue;
const retryLines = [];
if (result.retry) {
retryLines.push('');
retryLines.push(colors.gray(separator(` Retry #${result.retry}`)));
}
resultLines.push(...retryLines);
resultLines.push(...errors.map(error => '\n' + error.message));
if (includeAttachments) {
for (let i = 0; i < result.attachments.length; ++i) {
const attachment = result.attachments[i];
const hasPrintableContent = attachment.contentType.startsWith('text/') && attachment.body;
if (!attachment.path && !hasPrintableContent)
continue;
resultLines.push('');
resultLines.push(colors.cyan(separator(` attachment #${i + 1}: ${attachment.name} (${attachment.contentType})`)));
if (attachment.path) {
const relativePath = path.relative(process.cwd(), attachment.path);
resultLines.push(colors.cyan(` ${relativePath}`));
// Make this extensible
if (attachment.name === 'trace') {
resultLines.push(colors.cyan(` Usage:`));
resultLines.push('');
resultLines.push(colors.cyan(` npx playwright show-trace ${relativePath}`));
resultLines.push('');
}
} else {
if (attachment.contentType.startsWith('text/') && attachment.body) {
let text = attachment.body.toString();
if (text.length > 300)
text = text.slice(0, 300) + '...';
resultLines.push(colors.cyan(` ${text}`));
}
}
resultLines.push(colors.cyan(separator(' ')));
}
}
const output = ((result as any)[kOutputSymbol] || []) as TestResultOutput[];
if (includeStdio && output.length) {
const outputText = output.map(({ chunk, type }) => {
const text = chunk.toString('utf8');
if (type === 'stderr')
return colors.red(stripAnsiEscapes(text));
return text;
}).join('');
resultLines.push('');
resultLines.push(colors.gray(separator('--- Test output')) + '\n\n' + outputText + '\n' + separator());
}
for (const error of errors) {
annotations.push({
location: error.location,
title,
message: [header, ...retryLines, error.message].join('\n'),
});
}
lines.push(...resultLines);
}
lines.push('');
return {
message: lines.join('\n'),
annotations
};
}
export function formatResultFailure(config: FullConfig, test: TestCase, result: TestResult, initialIndent: string, highlightCode: boolean): ErrorDetails[] {
const errorDetails: ErrorDetails[] = [];
if (result.status === 'passed' && test.expectedStatus === 'failed') {
errorDetails.push({
message: indent(colors.red(`Expected to fail, but passed.`), initialIndent),
});
}
if (result.status === 'interrupted') {
errorDetails.push({
message: indent(colors.red(`Test was interrupted.`), initialIndent),
});
}
for (const error of result.errors) {
const formattedError = formatError(config, error, highlightCode, test.location.file);
errorDetails.push({
message: indent(formattedError.message, initialIndent),
location: formattedError.location,
});
}
return errorDetails;
}
export function relativeFilePath(config: FullConfig, file: string): string {
return path.relative(config.rootDir, file) || path.basename(file);
}
function relativeTestPath(config: FullConfig, test: TestCase): string {
return relativeFilePath(config, test.location.file);
}
export function stepSuffix(step: TestStep | undefined) {
const stepTitles = step ? step.titlePath() : [];
return stepTitles.map(t => ' ' + t).join('');
}
export function formatTestTitle(config: FullConfig, test: TestCase, step?: TestStep, omitLocation: boolean = false): string {
// root, project, file, ...describes, test
const [, projectName, , ...titles] = test.titlePath();
let location;
if (omitLocation)
location = `${relativeTestPath(config, test)}`;
else
location = `${relativeTestPath(config, test)}:${step?.location?.line ?? test.location.line}:${step?.location?.column ?? test.location.column}`;
const projectTitle = projectName ? `[${projectName}] ` : '';
return `${projectTitle}${location} ${titles.join(' ')}${stepSuffix(step)}`;
}
function formatTestHeader(config: FullConfig, test: TestCase, indent: string, index?: number): string {
const title = formatTestTitle(config, test);
const header = `${indent}${index ? index + ') ' : ''}${title}`;
return separator(header);
}
export function formatError(config: FullConfig, error: TestError, highlightCode: boolean, file?: string): ErrorDetails {
const message = error.message || error.value || '';
const stack = error.stack;
if (!stack && !error.location)
return { message };
const tokens = [];
// Now that we filter out internals from our stack traces, we can safely render
// the helper / original exception locations.
const parsedStack = stack ? prepareErrorStack(stack) : undefined;
tokens.push(parsedStack?.message || message);
let location = error.location;
if (parsedStack && !location)
location = parsedStack.location;
if (location) {
try {
const source = fs.readFileSync(location.file, 'utf8');
const codeFrame = codeFrameColumns(source, { start: location }, { highlightCode });
// Convert /var/folders to /private/var/folders on Mac.
if (!file || fs.realpathSync(file) !== location.file) {
tokens.push('');
tokens.push(colors.gray(` at `) + `${relativeFilePath(config, location.file)}:${location.line}`);
}
tokens.push('');
tokens.push(codeFrame);
} catch (e) {
// Failed to read the source file - that's ok.
}
}
if (parsedStack) {
tokens.push('');
tokens.push(colors.dim(parsedStack.stackLines.join('\n')));
}
return {
location,
message: tokens.join('\n'),
};
}
export function separator(text: string = ''): string {
if (text)
text += ' ';
const columns = Math.min(100, process.stdout?.columns || 100);
return text + colors.dim('─'.repeat(Math.max(0, columns - text.length)));
}
function indent(lines: string, tab: string) {
return lines.replace(/^(?=.+$)/gm, tab);
}
export function prepareErrorStack(stack: string): {
message: string;
stackLines: string[];
location?: Location;
} {
const lines = stack.split('\n');
let firstStackLine = lines.findIndex(line => line.startsWith(' at '));
if (firstStackLine === -1)
firstStackLine = lines.length;
const message = lines.slice(0, firstStackLine).join('\n');
const stackLines = lines.slice(firstStackLine);
let location: Location | undefined;
for (const line of stackLines) {
const { frame: parsed, fileName: resolvedFile } = parseStackTraceLine(line);
if (!parsed || !resolvedFile)
continue;
if (belongsToNodeModules(resolvedFile))
continue;
location = { file: resolvedFile, column: parsed.column || 0, line: parsed.line || 0 };
break;
}
return { message, stackLines, location };
}
const ansiRegex = new RegExp('([\\u001B\\u009B][[\\]()#;?]*(?:(?:(?:[a-zA-Z\\d]*(?:;[-a-zA-Z\\d\\/#&.:=?%@~_]*)*)?\\u0007)|(?:(?:\\d{1,4}(?:;\\d{0,4})*)?[\\dA-PR-TZcf-ntqry=><~])))', 'g');
export function stripAnsiEscapes(str: string): string {
return str.replace(ansiRegex, '');
}
// Leaves enough space for the "prefix" to also fit.
function fitToWidth(line: string, width: number, prefix?: string): string {
const prefixLength = prefix ? stripAnsiEscapes(prefix).length : 0;
width -= prefixLength;
if (line.length <= width)
return line;
// Even items are plain text, odd items are control sequences.
const parts = line.split(ansiRegex);
const taken: string[] = [];
for (let i = parts.length - 1; i >= 0; i--) {
if (i % 2) {
// Include all control sequences to preserve formatting.
taken.push(parts[i]);
} else {
let part = parts[i].substring(parts[i].length - width);
if (part.length < parts[i].length && part.length > 0) {
// Add ellipsis if we are truncating.
part = '\u2026' + part.substring(1);
}
taken.push(part);
width -= part.length;
}
}
return taken.reverse().join('');
}
function belongsToNodeModules(file: string) {
return file.includes(`${path.sep}node_modules${path.sep}`);
}