playwright/packages/playwright-test/src/reporters/base.ts

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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 { codeFrameColumns } from '@babel/code-frame';
import colors from 'colors/safe';
import fs from 'fs';
import milliseconds from 'ms';
import path from 'path';
import StackUtils from 'stack-utils';
import { FullConfig, TestCase, Suite, TestResult, TestError, Reporter, FullResult, TestStep } from '../../types/testReporter';
const stackUtils = new StackUtils();
export type TestResultOutput = { chunk: string | Buffer, type: 'stdout' | 'stderr' };
export const kOutputSymbol = Symbol('output');
export type PositionInFile = { column: number; line: number };
type Annotation = {
filePath: string;
title: string;
message: string;
position?: PositionInFile;
};
type FailureDetails = {
tokens: string[];
position?: PositionInFile;
};
type ErrorDetails = {
message: string;
position?: PositionInFile;
};
type TestSummary = {
skipped: number;
expected: number;
skippedWithError: TestCase[];
unexpected: TestCase[];
flaky: TestCase[];
failuresToPrint: TestCase[];
};
export class BaseReporter implements Reporter {
duration = 0;
config!: FullConfig;
suite!: Suite;
result!: FullResult;
fileDurations = new Map<string, number>();
monotonicStartTime: number = 0;
private printTestOutput = !process.env.PWTEST_SKIP_TEST_OUTPUT;
protected _omitFailures: boolean;
constructor(options: { omitFailures?: boolean } = {}) {
this._omitFailures = options.omitFailures || false;
}
onBegin(config: FullConfig, suite: Suite) {
this.monotonicStartTime = monotonicTime();
this.config = config;
this.suite = suite;
}
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) {
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) {
console.log(formatError(error));
}
async onEnd(result: FullResult) {
this.duration = monotonicTime() - this.monotonicStartTime;
this.result = result;
}
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, unexpected, flaky }: 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 (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 ${this.config.globalTimeout / 1000}s for the entire test run`));
return tokens.join('\n');
}
protected generateSummary(): TestSummary {
let skipped = 0;
let expected = 0;
const skippedWithError: TestCase[] = [];
const unexpected: TestCase[] = [];
const flaky: TestCase[] = [];
this.suite.allTests().forEach(test => {
switch (test.outcome()) {
case 'skipped': {
++skipped;
if (test.results.some(result => !!result.error))
skippedWithError.push(test);
break;
}
case 'expected': ++expected; break;
case 'unexpected': unexpected.push(test); break;
case 'flaky': flaky.push(test); break;
}
});
const failuresToPrint = [...unexpected, ...flaky, ...skippedWithError];
return {
skipped,
expected,
skippedWithError,
unexpected,
flaky,
failuresToPrint
};
}
epilogue(full: boolean) {
const summary = this.generateSummary();
const summaryMessage = this.generateSummaryMessage(summary);
if (full && summary.failuresToPrint.length && !this._omitFailures)
this._printFailures(summary.failuresToPrint);
this._printSlowTests();
this._printSummary(summaryMessage);
}
private _printFailures(failures: TestCase[]) {
console.log('');
failures.forEach((test, index) => {
console.log(formatFailure(this.config, test, {
index: index + 1,
includeStdio: this.printTestOutput
}).message);
});
}
private _printSlowTests() {
this.getSlowTests().forEach(([file, duration]) => {
console.log(colors.yellow(' Slow test: ') + file + colors.yellow(` (${milliseconds(duration)})`));
});
}
private _printSummary(summary: string) {
if (summary.trim()) {
console.log('');
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, filePath?: string} = {}): {
message: string,
annotations: Annotation[]
} {
const { index, includeStdio, includeAttachments = true, filePath } = 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 { tokens: resultTokens, position } = formatResultFailure(test, result, ' ');
if (!resultTokens.length)
continue;
if (result.retry) {
resultLines.push('');
resultLines.push(colors.gray(pad(` Retry #${result.retry}`, '-')));
}
resultLines.push(...resultTokens);
if (includeAttachments) {
for (let i = 0; i < result.attachments.length; ++i) {
const attachment = result.attachments[i];
resultLines.push('');
resultLines.push(colors.cyan(pad(` attachment #${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/')) {
let text = attachment.body!.toString();
if (text.length > 300)
text = text.slice(0, 300) + '...';
resultLines.push(colors.cyan(` ${text}`));
}
}
resultLines.push(colors.cyan(pad(' ', '-')));
}
}
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(pad('--- Test output', '-')) + '\n\n' + outputText + '\n' + pad('', '-'));
}
if (filePath) {
annotations.push({
filePath,
position,
title,
message: [header, ...resultLines].join('\n'),
});
}
lines.push(...resultLines);
}
lines.push('');
return {
message: lines.join('\n'),
annotations
};
}
export function formatResultFailure(test: TestCase, result: TestResult, initialIndent: string): FailureDetails {
const resultTokens: string[] = [];
if (result.status === 'timedOut') {
resultTokens.push('');
resultTokens.push(indent(colors.red(`Timeout of ${test.timeout}ms exceeded.`), initialIndent));
}
if (result.status === 'passed' && test.expectedStatus === 'failed') {
resultTokens.push('');
resultTokens.push(indent(colors.red(`Expected to fail, but passed.`), initialIndent));
}
let error: ErrorDetails | undefined = undefined;
if (result.error !== undefined) {
error = formatError(result.error, test.location.file);
resultTokens.push(indent(error.message, initialIndent));
}
return {
tokens: resultTokens,
position: error?.position,
};
}
function relativeTestPath(config: FullConfig, test: TestCase): string {
return path.relative(config.rootDir, test.location.file) || path.basename(test.location.file);
}
function stepSuffix(step: TestStep | undefined) {
const stepTitles = step ? step.titlePath() : [];
return stepTitles.map(t => ' ' + t).join('');
}
export function formatTestTitle(config: FullConfig, test: TestCase, step?: TestStep): string {
// root, project, file, ...describes, test
const [, projectName, , ...titles] = test.titlePath();
const location = `${relativeTestPath(config, test)}:${test.location.line}:${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 + ') ' : ''}${title}`;
return pad(header, '=');
}
export function formatError(error: TestError, file?: string): ErrorDetails {
const stack = error.stack;
const tokens = [''];
let positionInFile: PositionInFile | undefined;
if (stack) {
const { message, stackLines, position } = prepareErrorStack(
stack,
file
);
positionInFile = position;
tokens.push(message);
const codeFrame = generateCodeFrame(file, position);
if (codeFrame) {
tokens.push('');
tokens.push(codeFrame);
}
tokens.push('');
tokens.push(colors.dim(stackLines.join('\n')));
} else if (error.message) {
tokens.push(error.message);
} else if (error.value) {
tokens.push(error.value);
}
return {
position: positionInFile,
message: tokens.join('\n'),
};
}
function pad(line: string, char: string): string {
if (line)
line += ' ';
return line + colors.gray(char.repeat(Math.max(0, 100 - line.length)));
}
function indent(lines: string, tab: string) {
return lines.replace(/^(?=.+$)/gm, tab);
}
function generateCodeFrame(file?: string, position?: PositionInFile): string | undefined {
if (!position || !file)
return;
const source = fs.readFileSync(file!, 'utf8');
const codeFrame = codeFrameColumns(
source,
{ start: position },
{ highlightCode: colors.enabled }
);
return codeFrame;
}
export function prepareErrorStack(stack: string, file?: string): {
message: string;
stackLines: string[];
position?: PositionInFile;
} {
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);
const position = file ? positionInFile(stackLines, file) : undefined;
return {
message,
stackLines,
position,
};
}
function positionInFile(stackLines: string[], file: string): PositionInFile | undefined {
// Stack will have /private/var/folders instead of /var/folders on Mac.
file = fs.realpathSync(file);
for (const line of stackLines) {
const parsed = stackUtils.parseLine(line);
if (!parsed || !parsed.file)
continue;
if (path.resolve(process.cwd(), parsed.file) === file)
return { column: parsed.column || 0, line: parsed.line || 0 };
}
}
function monotonicTime(): number {
const [seconds, nanoseconds] = process.hrtime();
return seconds * 1000 + (nanoseconds / 1000000 | 0);
}
const asciiRegex = 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(asciiRegex, '');
}