@aws-cdk-testing/cli-integ
Version:
Integration tests for the AWS CDK CLI
195 lines • 28.1 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.integTest = integTest;
exports.randomString = randomString;
const fs = require("fs");
const path = require("path");
const corking_1 = require("./corking");
const SKIP_TESTS = fs.readFileSync(path.join(__dirname, '..', 'skip-tests.txt'), { encoding: 'utf-8' })
.split('\n')
.map(x => x.trim())
.filter(x => x && !x.startsWith('#'));
if (SKIP_TESTS.length > 0) {
process.stderr.write(`ℹ️ Skipping tests: ${JSON.stringify(SKIP_TESTS)}\n`);
}
// Whether we want to stop after the first failure, for quicker debugging (hopefully).
const FAIL_FAST = process.env.FAIL_FAST === 'true';
// Keep track of whether the suite has failed. If so, we stop running.
let failed = false;
/**
* A wrapper for jest's 'test' which takes regression-disabled tests into account and prints a banner
*/
function integTest(name, callback, timeoutMillis) {
const runner = shouldSkip(name) ? test.skip : test;
// we're quite a bit of sporadic failures due to environmental causes.
// lets retry 3 times to try and mitigate that.
jest.retryTimes(3);
runner(name, async () => {
const output = new corking_1.MemoryStream();
output.write('================================================================\n');
output.write(`${name}\n`);
output.write('================================================================\n');
const start = Date.now();
let waitTime = 0;
process.stderr.write(`[INTEG TEST::${name}] Starting (pid ${process.pid})...\n`);
maybePrintMemoryUsage(name);
try {
if (FAIL_FAST && failed) {
throw new Error('FAIL_FAST requested and currently failing. Stopping test early.');
}
const ret = await callback({
output,
randomString: randomString(),
name,
log(s) {
output.write(`${s}\n`);
},
reportWaitTime(n) {
waitTime += n;
},
});
await writeLog(name, {
success: true,
output: output.toString(),
totalDuration: Date.now() - start,
waitTime,
});
return ret;
}
catch (e) {
// Print the buffered output, only if the test fails.
failed = true;
output.write(e.message);
output.write(e.stack);
await writeLog(name, {
success: false,
output: output.toString(),
totalDuration: Date.now() - start,
waitTime,
});
process.stderr.write(`[INTEG TEST::${name}] Failed: ${e}\n`);
const isGitHub = !!process.env.GITHUB_RUN_ID;
if (isGitHub) {
// GitHub Actions compatible output formatting
// https://docs.github.com/en/actions/writing-workflows/choosing-what-your-workflow-does/workflow-commands-for-github-actions#setting-an-error-message
let written = process.stderr.write(`::error title=Failed ${name}::${e.message}\n`);
if (!written) {
// Wait for drain
await new Promise((ok) => process.stderr.once('drain', ok));
}
// Print output only if the test fails. Use 'console.log' so the output is buffered by
// jest and prints without a stack trace (if verbose: false).
written = process.stdout.write([
`::group::Failure details: ${name} (click to expand)\n`,
`${output.buffer().toString()}\n`,
'::endgroup::\n',
].join(''));
if (!written) {
// Wait for drain
await new Promise((ok) => process.stdout.once('drain', ok));
}
}
else {
// Use 'console.log' so the output is buffered by
// jest and prints without a stack trace (if verbose: false).
// eslint-disable-next-line no-console
console.log(output.buffer().toString());
}
throw e;
}
finally {
const duration = Date.now() - start;
process.stderr.write(`[INTEG TEST::${name}] Done (${humanTime(duration)}).\n`);
maybePrintMemoryUsage(name);
}
}, timeoutMillis);
}
function shouldSkip(testName) {
return SKIP_TESTS.includes(testName);
}
function maybePrintMemoryUsage(testName) {
if (process.env.INTEG_MEMORY_DEBUG !== 'true') {
return;
}
const memoryUsage = process.memoryUsage();
const report = {};
for (const [key, value] of Object.entries(memoryUsage)) {
report[key] = `${Math.round(value / 1024 / 1024)} MB`;
}
process.stderr.write(`[INTEG TEST::${testName}] Memory Usage: ${JSON.stringify(report)}`);
}
function randomString() {
// Crazy
return Math.random().toString(36).replace(/[^a-z0-9]+/g, '');
}
/**
* Write log files
*
* Write a text log to `${INTEG_LOGS}/[FAILED-]description-of-test.txt`, and a single
* line of a Markdown table to `${INTEG_LOGS}/md/1-description-of-test.md`.
*
* The latter are designed to be globcatted to $GITHUB_STEP_SUMMARY after tests
* (we don't write there directly to avoid concurrency issues with multiple processes
* reading and mutating the same file).
*
* We do use `atomicWrite` to write files -- it's only necessary for the header file,
* which gets overwritten by every test, just to make sure it properly exists (shouldn't
* end up empty or with interleaved contents). The other writes are not
* contended and don't need to be atomic, but the function is just ergonomic to use.
*/
async function writeLog(testName, result) {
if (process.env.INTEG_LOGS) {
// Write the log file
const slug = slugify(testName);
const logFileName = `${process.env.INTEG_LOGS}/${result.success ? '' : 'FAILED-'}${slug}.txt`;
await atomicWrite(logFileName, result.output);
// Write a row for the markdown table
// Sort failures before successes, and the table header before all
const mdFileName = `${process.env.INTEG_LOGS}/md/${result.success ? '2' : '1'}-${slug}.md`;
const columns = [
['Result', result.success ? 'pass ✅' : 'fail ❌'],
['Test Name', testName],
['Test Duration', humanTime(result.totalDuration - result.waitTime)],
['Wait Time', result.waitTime > 0 ? humanTime(result.waitTime) : '-'],
];
await atomicWrite(`${process.env.INTEG_LOGS}/md/0-header.md`, [
`| ${columns.map(([col, _val]) => col).join(' | ')} |`,
`| ${columns.map(() => '-----------').join(' | ')} |`,
].map(x => `${x}\n`).join(''));
await atomicWrite(mdFileName, `| ${columns.map(([_col, val]) => val).join(' | ')} |\n`);
}
}
function humanTime(delta) {
const components = [];
const S = 1000;
const M = 60 * S;
const H = 60 * M;
const hours = Math.floor(delta / H);
if (hours > 0) {
components.push(`${hours}h`);
delta -= hours * H;
}
const minutes = Math.floor(delta / M);
if (minutes > 0) {
components.push(`${minutes}m`);
delta -= minutes * M;
}
const seconds = Math.floor(delta / S);
if (seconds > 0) {
components.push(`${seconds}s`);
delta -= seconds * S;
}
components.push(`${delta}ms`);
// Retain the 2 most significant components
return components.slice(0, 2).join('');
}
function slugify(x) {
return x.replace(/[^a-zA-Z0-9_,]+/g, '-');
}
async function atomicWrite(fileName, contents) {
await fs.promises.mkdir(path.dirname(fileName), { recursive: true });
const tmp = `${fileName}.${process.pid}`;
await fs.promises.writeFile(tmp, contents);
await fs.promises.rename(tmp, fileName);
}
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* as fs from 'fs';\nimport * as path from 'path';\nimport { MemoryStream } from './corking';\n\nconst SKIP_TESTS = fs.readFileSync(path.join(__dirname, '..', 'skip-tests.txt'), { encoding: 'utf-8' })\n  .split('\\n')\n  .map(x => x.trim())\n  .filter(x => x && !x.startsWith('#'));\n\nif (SKIP_TESTS.length > 0) {\n  process.stderr.write(`ℹ️ Skipping tests: ${JSON.stringify(SKIP_TESTS)}\\n`);\n}\n\n// Whether we want to stop after the first failure, for quicker debugging (hopefully).\nconst FAIL_FAST = process.env.FAIL_FAST === 'true';\n\n// Keep track of whether the suite has failed. If so, we stop running.\nlet failed = false;\n\nexport interface TestContext {\n  readonly randomString: string;\n  readonly name: string;\n  readonly output: NodeJS.WritableStream;\n  log(s: string): void;\n  reportWaitTime(ms: number): void;\n}\n\n/**\n * A wrapper for jest's 'test' which takes regression-disabled tests into account and prints a banner\n */\nexport function integTest(\n  name: string,\n  callback: (context: TestContext) => Promise<void>,\n  timeoutMillis?: number,\n): void {\n  const runner = shouldSkip(name) ? test.skip : test;\n\n  // we're quite a bit of sporadic failures due to environmental causes.\n  // lets retry 3 times to try and mitigate that.\n  jest.retryTimes(3);\n\n  runner(name, async () => {\n    const output = new MemoryStream();\n\n    output.write('================================================================\\n');\n    output.write(`${name}\\n`);\n    output.write('================================================================\\n');\n\n    const start = Date.now();\n    let waitTime = 0;\n\n    process.stderr.write(`[INTEG TEST::${name}] Starting (pid ${process.pid})...\\n`);\n    maybePrintMemoryUsage(name);\n    try {\n      if (FAIL_FAST && failed) {\n        throw new Error('FAIL_FAST requested and currently failing. Stopping test early.');\n      }\n\n      const ret = await callback({\n        output,\n        randomString: randomString(),\n        name,\n        log(s: string) {\n          output.write(`${s}\\n`);\n        },\n        reportWaitTime(n) {\n          waitTime += n;\n        },\n      });\n\n      await writeLog(name, {\n        success: true,\n        output: output.toString(),\n        totalDuration: Date.now() - start,\n        waitTime,\n      });\n\n      return ret;\n    } catch (e: any) {\n      // Print the buffered output, only if the test fails.\n      failed = true;\n\n      output.write(e.message);\n      output.write(e.stack);\n\n      await writeLog(name, {\n        success: false,\n        output: output.toString(),\n        totalDuration: Date.now() - start,\n        waitTime,\n      });\n      process.stderr.write(`[INTEG TEST::${name}] Failed: ${e}\\n`);\n\n      const isGitHub = !!process.env.GITHUB_RUN_ID;\n\n      if (isGitHub) {\n        // GitHub Actions compatible output formatting\n        // https://docs.github.com/en/actions/writing-workflows/choosing-what-your-workflow-does/workflow-commands-for-github-actions#setting-an-error-message\n        let written = process.stderr.write(`::error title=Failed ${name}::${e.message}\\n`);\n        if (!written) {\n          // Wait for drain\n          await new Promise((ok) => process.stderr.once('drain', ok));\n        }\n\n        // Print output only if the test fails. Use 'console.log' so the output is buffered by\n        // jest and prints without a stack trace (if verbose: false).\n        written = process.stdout.write([\n          `::group::Failure details: ${name} (click to expand)\\n`,\n          `${output.buffer().toString()}\\n`,\n          '::endgroup::\\n',\n        ].join(''));\n        if (!written) {\n          // Wait for drain\n          await new Promise((ok) => process.stdout.once('drain', ok));\n        }\n      } else {\n        // Use 'console.log' so the output is buffered by\n        // jest and prints without a stack trace (if verbose: false).\n        // eslint-disable-next-line no-console\n        console.log(output.buffer().toString());\n      }\n      throw e;\n    } finally {\n      const duration = Date.now() - start;\n      process.stderr.write(`[INTEG TEST::${name}] Done (${humanTime(duration)}).\\n`);\n      maybePrintMemoryUsage(name);\n    }\n  }, timeoutMillis);\n}\n\nfunction shouldSkip(testName: string) {\n  return SKIP_TESTS.includes(testName);\n}\n\nfunction maybePrintMemoryUsage(testName: string) {\n  if (process.env.INTEG_MEMORY_DEBUG !== 'true') {\n    return;\n  }\n  const memoryUsage = process.memoryUsage() as any;\n  const report: any = {};\n  for (const [key, value] of Object.entries(memoryUsage)) {\n    report[key] = `${Math.round(value as number / 1024 / 1024)} MB`;\n  }\n  process.stderr.write(`[INTEG TEST::${testName}] Memory Usage: ${JSON.stringify(report)}`);\n}\n\nexport function randomString() {\n  // Crazy\n  return Math.random().toString(36).replace(/[^a-z0-9]+/g, '');\n}\n\n/**\n * Write log files\n *\n * Write a text log to `${INTEG_LOGS}/[FAILED-]description-of-test.txt`, and a single\n * line of a Markdown table to `${INTEG_LOGS}/md/1-description-of-test.md`.\n *\n * The latter are designed to be globcatted to $GITHUB_STEP_SUMMARY after tests\n * (we don't write there directly to avoid concurrency issues with multiple processes\n * reading and mutating the same file).\n *\n * We do use `atomicWrite` to write files -- it's only necessary for the header file,\n * which gets overwritten by every test, just to make sure it properly exists (shouldn't\n * end up empty or with interleaved contents). The other writes are not\n * contended and don't need to be atomic, but the function is just ergonomic to use.\n */\nasync function writeLog(testName: string, result: {\n  success: boolean;\n  output: string;\n  totalDuration: number;\n  waitTime: number;\n}) {\n  if (process.env.INTEG_LOGS) {\n    // Write the log file\n    const slug = slugify(testName);\n    const logFileName = `${process.env.INTEG_LOGS}/${result.success ? '' : 'FAILED-'}${slug}.txt`;\n    await atomicWrite(logFileName, result.output);\n\n    // Write a row for the markdown table\n    // Sort failures before successes, and the table header before all\n    const mdFileName = `${process.env.INTEG_LOGS}/md/${result.success ? '2' : '1'}-${slug}.md`;\n    const columns: Array<[string, string]> = [\n      ['Result', result.success ? 'pass ✅' : 'fail ❌'],\n      ['Test Name', testName],\n      ['Test Duration', humanTime(result.totalDuration - result.waitTime)],\n      ['Wait Time', result.waitTime > 0 ? humanTime(result.waitTime) : '-'],\n    ];\n    await atomicWrite(`${process.env.INTEG_LOGS}/md/0-header.md`, [\n      `| ${columns.map(([col, _val]) => col).join(' | ')} |`,\n      `| ${columns.map(() => '-----------').join(' | ')} |`,\n    ].map(x => `${x}\\n`).join(''));\n    await atomicWrite(mdFileName,\n      `| ${columns.map(([_col, val]) => val).join(' | ')} |\\n`);\n  }\n}\n\nfunction humanTime(delta: number) {\n  const components = [];\n\n  const S = 1000;\n  const M = 60 * S;\n  const H = 60 * M;\n\n  const hours = Math.floor(delta / H);\n  if (hours > 0) {\n    components.push(`${hours}h`);\n    delta -= hours * H;\n  }\n  const minutes = Math.floor(delta / M);\n  if (minutes > 0) {\n    components.push(`${minutes}m`);\n    delta -= minutes * M;\n  }\n  const seconds = Math.floor(delta / S);\n  if (seconds > 0) {\n    components.push(`${seconds}s`);\n    delta -= seconds * S;\n  }\n  components.push(`${delta}ms`);\n\n  // Retain the 2 most significant components\n  return components.slice(0, 2).join('');\n}\n\nfunction slugify(x: string) {\n  return x.replace(/[^a-zA-Z0-9_,]+/g, '-');\n}\n\nasync function atomicWrite(fileName: string, contents: string) {\n  await fs.promises.mkdir(path.dirname(fileName), { recursive: true });\n\n  const tmp = `${fileName}.${process.pid}`;\n  await fs.promises.writeFile(tmp, contents);\n  await fs.promises.rename(tmp, fileName);\n}\n"]}