@aws-cdk/integ-runner
Version:
CDK Integration Testing Tool
500 lines • 74.1 kB
JavaScript
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.IntegTestRunner = void 0;
const path = require("path");
const cloud_assembly_schema_1 = require("@aws-cdk/cloud-assembly-schema");
const chokidar = require("chokidar");
const handler_js_1 = require("chokidar/handler.js");
const fs = require("fs-extra");
const workerpool = require("workerpool");
const runner_base_1 = require("./runner-base");
const logger = require("../logger");
const utils_1 = require("../utils");
const common_1 = require("../workers/common");
/**
* File events that we care about from chokidar.
* In chokidar v4, EventName includes additional events like 'error', 'raw', 'ready', 'all'
* that we need to filter out in the 'all' handler.
*/
const FILE_EVENTS = [handler_js_1.EVENTS.ADD, handler_js_1.EVENTS.CHANGE];
/**
* Type guard to check if an event is a file event we should process.
*/
function isFileEvent(event) {
return FILE_EVENTS.includes(event);
}
/**
* An integration test runner that orchestrates executing
* integration tests
*/
class IntegTestRunner extends runner_base_1.IntegRunner {
constructor(options, destructiveChanges) {
super(options);
this._destructiveChanges = destructiveChanges;
}
async actualTests() {
const actualTestSuite = await this.actualTestSuite();
// We don't want new tests written in the legacy mode.
// If there is no existing snapshot _and_ this is a legacy
// test then point the user to the new `IntegTest` construct
if (!this.hasSnapshot() && actualTestSuite.type === 'legacy-test-suite') {
throw new Error(`${this.testName} is a new test. Please use the IntegTest construct ` +
'to configure the test\n' +
'https://github.com/aws/aws-cdk/tree/main/packages/%40aws-cdk/integ-tests-alpha');
}
return actualTestSuite.testSuite;
}
createCdkContextJson() {
if (!fs.existsSync(this.cdkContextPath)) {
fs.writeFileSync(this.cdkContextPath, JSON.stringify({
watch: {},
}, undefined, 2));
}
}
/**
* When running integration tests with the update path workflow
* it is important that the snapshot that is deployed is the current snapshot
* from the upstream branch. In order to guarantee that, first checkout the latest
* (to the user) snapshot from upstream
*
* It is not straightforward to figure out what branch the current
* working branch was created from. This is a best effort attempt to do so.
* This assumes that there is an 'origin'. `git remote show origin` returns a list of
* all branches and we then search for one that starts with `HEAD branch: `
*/
checkoutSnapshot() {
// We use the directory that contains the snapshot to run git commands in
// We don't change the cwd for executing git, but instead use the -C flag
// @see https://git-scm.com/docs/git#Documentation/git.txt--Cltpathgt
// This way we are guaranteed to operate under the correct git repo, even
// when executing integ-runner from outside the repo under test.
const gitCwd = path.dirname(this.snapshotDir);
const git = ['git', '-C', gitCwd];
// https://git-scm.com/docs/git-merge-base
let baseBranch = undefined;
// try to find the base branch that the working branch was created from
try {
const origin = (0, utils_1.exec)([...git, 'remote', 'show', 'origin']);
const originLines = origin.split('\n');
for (const line of originLines) {
if (line.trim().startsWith('HEAD branch: ')) {
baseBranch = line.trim().split('HEAD branch: ')[1];
}
}
}
catch (e) {
logger.warning('%s\n%s', 'Could not determine git origin branch.', `You need to manually checkout the snapshot directory ${this.snapshotDir}` +
'from the merge-base (https://git-scm.com/docs/git-merge-base)');
logger.warning('error: %s', (0, common_1.formatError)(e));
}
// if we found the base branch then get the merge-base (most recent common commit)
// and checkout the snapshot using that commit
if (baseBranch) {
const relativeSnapshotDir = path.relative(gitCwd, this.snapshotDir);
const checkoutCommand = [...git, 'checkout', [...git, 'merge-base', 'HEAD', baseBranch], '--', relativeSnapshotDir];
try {
(0, utils_1.execWithSubShell)(checkoutCommand);
}
catch (e) {
logger.warning('%s\n%s', `Could not checkout snapshot directory '${this.snapshotDir}'. Please verify the following command completes correctly:`, (0, utils_1.renderCommand)(checkoutCommand), '');
logger.warning('error: %s', (0, common_1.formatError)(e));
}
}
}
/**
* Runs cdk deploy --watch for an integration test
*
* This is meant to be run on a single test and will not create a snapshot
*/
async watchIntegTest(options) {
const actualTestSuite = await this.actualTestSuite();
const actualTestCase = actualTestSuite.testSuite[options.testCaseName];
if (!actualTestCase) {
throw new Error(`Did not find test case name '${options.testCaseName}' in '${Object.keys(actualTestSuite.testSuite)}'`);
}
const enableForVerbosityLevel = (needed = 1) => {
const verbosity = options.verbosity ?? 0;
return (verbosity >= needed) ? true : undefined;
};
try {
await this.watch({
...this.defaultArgs,
deploymentMethod: {
method: 'hotswap',
fallback: {
method: 'change-set',
},
},
profile: this.profile,
requireApproval: cloud_assembly_schema_1.RequireApproval.NEVER,
traceLogs: enableForVerbosityLevel(2) ?? false,
verbose: enableForVerbosityLevel(3),
debug: enableForVerbosityLevel(4),
}, options.testCaseName, options.verbosity ?? 0);
}
catch (e) {
throw e;
}
}
/**
* Orchestrates running integration tests. Currently this includes
*
* 1. (if update workflow is enabled) Deploying the snapshot test stacks
* 2. Deploying the integration test stacks
* 2. Saving the snapshot (if successful)
* 3. Destroying the integration test stacks (if clean=false)
*
* The update workflow exists to check for cases where a change would cause
* a failure to an existing stack, but not for a newly created stack.
*/
async runIntegTestCase(options) {
let assertionResults;
const actualTestSuite = await this.actualTestSuite();
const actualTestCase = actualTestSuite.testSuite[options.testCaseName];
if (!actualTestCase) {
throw new Error(`Did not find test case name '${options.testCaseName}' in '${Object.keys(actualTestSuite.testSuite)}'`);
}
const clean = options.clean ?? true;
const updateWorkflowEnabled = (options.updateWorkflow ?? true)
&& (actualTestCase.stackUpdateWorkflow ?? true);
const enableForVerbosityLevel = (needed = 1) => {
const verbosity = options.verbosity ?? 0;
return (verbosity >= needed) ? true : undefined;
};
try {
if (!options.dryRun && (actualTestCase.cdkCommandOptions?.deploy?.enabled ?? true)) {
assertionResults = await this.deploy({
...this.defaultArgs,
profile: this.profile,
requireApproval: cloud_assembly_schema_1.RequireApproval.NEVER,
verbose: enableForVerbosityLevel(3),
debug: enableForVerbosityLevel(4),
}, updateWorkflowEnabled, options.testCaseName);
}
// only create the snapshot if there are no failed assertion results
// (i.e. no failures)
if (!Object.values(assertionResults ?? {}).some(result => result.status === 'fail')) {
await this.createSnapshot();
}
}
catch (e) {
throw e;
}
finally {
if (!options.dryRun) {
if (clean && (actualTestCase.cdkCommandOptions?.destroy?.enabled ?? true)) {
await this.destroy(options.testCaseName, {
...this.defaultArgs,
profile: this.profile,
all: true,
force: true,
app: this.cdkApp,
output: path.relative(this.directory, this.cdkOutDir),
...actualTestCase.cdkCommandOptions?.destroy?.args,
context: this.getContext(actualTestCase.cdkCommandOptions?.destroy?.args?.context),
verbose: enableForVerbosityLevel(3),
debug: enableForVerbosityLevel(4),
});
}
}
this.cleanup();
}
return assertionResults;
}
/**
* Perform a integ test case stack destruction
*/
async destroy(testCaseName, destroyArgs) {
const actualTestCase = (await this.actualTestSuite()).testSuite[testCaseName];
try {
if (actualTestCase.hooks?.preDestroy) {
actualTestCase.hooks.preDestroy.forEach(cmd => {
(0, utils_1.exec)((0, utils_1.chunks)(cmd), {
cwd: path.dirname(this.snapshotDir),
});
});
}
await this.cdk.destroy({
...destroyArgs,
});
if (actualTestCase.hooks?.postDestroy) {
actualTestCase.hooks.postDestroy.forEach(cmd => {
(0, utils_1.exec)((0, utils_1.chunks)(cmd), {
cwd: path.dirname(this.snapshotDir),
});
});
}
}
catch (e) {
this.parseError(e, actualTestCase.cdkCommandOptions?.destroy?.expectError ?? false, actualTestCase.cdkCommandOptions?.destroy?.expectedMessage);
}
}
async watch(options, testCaseName, verbosity) {
const actualTestSuite = await this.actualTestSuite();
const actualTestCase = actualTestSuite.testSuite[testCaseName];
if (actualTestCase.hooks?.preDeploy) {
actualTestCase.hooks.preDeploy.forEach(cmd => {
(0, utils_1.exec)((0, utils_1.chunks)(cmd), {
cwd: path.dirname(this.snapshotDir),
});
});
}
const watchArgs = {
...options,
lookups: actualTestSuite.enableLookups,
stacks: [
...actualTestCase.stacks,
...actualTestCase.assertionStack ? [actualTestCase.assertionStack] : [],
],
output: path.relative(this.directory, this.cdkOutDir),
outputsFile: path.relative(this.directory, path.join(this.cdkOutDir, 'assertion-results.json')),
...actualTestCase?.cdkCommandOptions?.deploy?.args,
context: {
...this.getContext(actualTestCase?.cdkCommandOptions?.deploy?.args?.context),
},
app: this.cdkApp,
};
const destroyMessage = {
additionalMessages: [
'After you are done you must manually destroy the deployed stacks',
` ${[
...process.env.AWS_REGION ? [`AWS_REGION=${process.env.AWS_REGION}`] : [],
'cdk destroy',
`-a '${this.cdkApp}'`,
watchArgs.stacks.join(' '),
`--profile ${watchArgs.profile}`,
].join(' ')}`,
],
};
workerpool.workerEmit(destroyMessage);
if (watchArgs.verbose) {
// if `-vvv` (or above) is used then print out the command that was used
// this allows users to manually run the command
workerpool.workerEmit({
additionalMessages: [
'Repro:',
` ${[
'cdk synth',
`-a '${this.cdkApp}'`,
`-o '${this.cdkOutDir}'`,
...Object.entries(this.getContext()).flatMap(([k, v]) => typeof v !== 'object' ? [`-c '${k}=${v}'`] : []),
watchArgs.stacks.join(' '),
`--outputs-file ${watchArgs.outputsFile}`,
`--profile ${watchArgs.profile}`,
'--hotswap-fallback',
].join(' ')}`,
],
});
}
const assertionResults = path.join(this.cdkOutDir, 'assertion-results.json');
const watcher = chokidar.watch([this.cdkOutDir], {
cwd: this.directory,
});
watcher.on('all', (event, file) => {
if (!isFileEvent(event)) {
return; // Ignore non-file events like 'error', 'raw', 'ready', 'all'
}
// we only care about changes to the `assertion-results.json` file. If there
// are assertions then this will change on every deployment
if (assertionResults.endsWith(file) && (event === 'add' || event === 'change')) {
const start = Date.now();
if (actualTestCase.hooks?.postDeploy) {
actualTestCase.hooks.postDeploy.forEach(cmd => {
(0, utils_1.exec)((0, utils_1.chunks)(cmd), {
cwd: path.dirname(this.snapshotDir),
});
});
}
if (actualTestCase.assertionStack && actualTestCase.assertionStackName) {
const res = this.processAssertionResults(assertionResults, actualTestCase.assertionStackName, actualTestCase.assertionStack);
if (res && Object.values(res).some(r => r.status === 'fail')) {
workerpool.workerEmit({
reason: common_1.DiagnosticReason.ASSERTION_FAILED,
testName: `${testCaseName} (${watchArgs.profile}`,
message: (0, common_1.formatAssertionResults)(res),
duration: (Date.now() - start) / 1000,
});
}
else {
workerpool.workerEmit({
reason: common_1.DiagnosticReason.TEST_SUCCESS,
testName: `${testCaseName}`,
message: res ? (0, common_1.formatAssertionResults)(res) : 'NO ASSERTIONS',
duration: (Date.now() - start) / 1000,
});
}
// emit the destroy message after every run
// so that it's visible to the user
workerpool.workerEmit(destroyMessage);
}
}
});
await new Promise(resolve => {
watcher.on('ready', async () => {
resolve({});
});
});
const { promise: waiter, resolve } = (0, utils_1.promiseWithResolvers)();
await this.cdk.watch(watchArgs, {
// if `-v` (or above) is passed then stream the logs
onStdout: (message) => {
if (verbosity > 0) {
process.stdout.write(message);
}
},
// if `-v` (or above) is passed then stream the logs
onStderr: (message) => {
if (verbosity > 0) {
process.stderr.write(message);
}
},
onClose: async (code) => {
if (code !== 0) {
throw new Error('Watch exited with error');
}
await watcher.close();
resolve(code);
},
});
await waiter;
}
/**
* Perform a integ test case deployment, including
* performing the update workflow
*/
async deploy(deployArgs, updateWorkflowEnabled, testCaseName) {
const actualTestCase = (await this.actualTestSuite()).testSuite[testCaseName];
try {
if (actualTestCase.hooks?.preDeploy) {
actualTestCase.hooks.preDeploy.forEach(cmd => {
(0, utils_1.exec)((0, utils_1.chunks)(cmd), {
cwd: path.dirname(this.snapshotDir),
});
});
}
// if the update workflow is not disabled, first
// perform a deployment with the existing snapshot
// then perform a deployment (which will be a stack update)
// with the current integration test
// We also only want to run the update workflow if there is an existing
// snapshot (otherwise there is nothing to update)
const expectedTestSuite = await this.expectedTestSuite();
if (updateWorkflowEnabled && this.hasSnapshot() &&
(expectedTestSuite && testCaseName in expectedTestSuite?.testSuite)) {
// make sure the snapshot is the latest from 'origin'
this.checkoutSnapshot();
const expectedTestCase = expectedTestSuite.testSuite[testCaseName];
await this.cdk.deploy({
...deployArgs,
stacks: expectedTestCase.stacks,
...expectedTestCase?.cdkCommandOptions?.deploy?.args,
context: this.getContext(expectedTestCase?.cdkCommandOptions?.deploy?.args?.context),
app: path.relative(this.directory, this.snapshotDir),
lookups: expectedTestSuite?.enableLookups,
});
}
// now deploy the "actual" test.
await this.cdk.deploy({
...deployArgs,
lookups: (await this.actualTestSuite()).enableLookups,
stacks: [
...actualTestCase.stacks,
],
output: path.relative(this.directory, this.cdkOutDir),
...actualTestCase?.cdkCommandOptions?.deploy?.args,
context: this.getContext(actualTestCase?.cdkCommandOptions?.deploy?.args?.context),
app: this.cdkApp,
});
// If there are any assertions
// deploy the assertion stack as well
// This is separate from the above deployment because we want to
// set `rollback: false`. This allows the assertion stack to deploy all the
// assertions instead of failing at the first failed assertion
// combining it with the above deployment would prevent any replacement updates
if (actualTestCase.assertionStack) {
await this.cdk.deploy({
...deployArgs,
lookups: (await this.actualTestSuite()).enableLookups,
stacks: [
actualTestCase.assertionStack,
],
rollback: false,
output: path.relative(this.directory, this.cdkOutDir),
...actualTestCase?.cdkCommandOptions?.deploy?.args,
outputsFile: path.relative(this.directory, path.join(this.cdkOutDir, 'assertion-results.json')),
context: this.getContext(actualTestCase?.cdkCommandOptions?.deploy?.args?.context),
app: this.cdkApp,
});
}
if (actualTestCase.hooks?.postDeploy) {
actualTestCase.hooks.postDeploy.forEach(cmd => {
(0, utils_1.exec)((0, utils_1.chunks)(cmd), {
cwd: path.dirname(this.snapshotDir),
});
});
}
if (actualTestCase.assertionStack && actualTestCase.assertionStackName) {
return this.processAssertionResults(path.join(this.cdkOutDir, 'assertion-results.json'), actualTestCase.assertionStackName, actualTestCase.assertionStack);
}
}
catch (e) {
this.parseError(e, actualTestCase.cdkCommandOptions?.deploy?.expectError ?? false, actualTestCase.cdkCommandOptions?.deploy?.expectedMessage);
}
return;
}
/**
* Process the outputsFile which contains the assertions results as stack
* outputs
*/
processAssertionResults(file, assertionStackName, assertionStackId) {
const results = {};
if (fs.existsSync(file)) {
try {
const outputs = fs.readJSONSync(file);
if (assertionStackName in outputs) {
for (const [assertionId, result] of Object.entries(outputs[assertionStackName])) {
if (assertionId.startsWith('AssertionResults')) {
const assertionResult = JSON.parse(result.replace(/\n/g, '\\n'));
if (assertionResult.status === 'fail' || assertionResult.status === 'success') {
results[assertionId] = assertionResult;
}
}
}
}
}
catch (e) {
// if there are outputs, but they cannot be processed, then throw an error
// so that the test fails
results[assertionStackId] = {
status: 'fail',
message: `error processing assertion results: ${e}`,
};
}
finally {
// remove the outputs file so it is not part of the snapshot
// it will contain env specific information from values
// resolved at deploy time
fs.unlinkSync(file);
}
}
return Object.keys(results).length > 0 ? results : undefined;
}
/**
* Parses an error message returned from a CDK command
*/
parseError(e, expectError, expectedMessage) {
if (expectError) {
if (expectedMessage) {
const message = e.message;
if (!message.match(expectedMessage)) {
throw (e);
}
}
}
else {
throw e;
}
}
}
exports.IntegTestRunner = IntegTestRunner;
//# 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* as path from 'path';\nimport type { DestroyOptions, TestCase } from '@aws-cdk/cloud-assembly-schema';\nimport { RequireApproval } from '@aws-cdk/cloud-assembly-schema';\nimport * as chokidar from 'chokidar';\nimport { type EventName, EVENTS } from 'chokidar/handler.js';\nimport * as fs from 'fs-extra';\nimport * as workerpool from 'workerpool';\nimport type { IntegRunnerOptions } from './runner-base';\nimport { IntegRunner } from './runner-base';\nimport type * as cdk from '../engines/cdk-interface';\nimport * as logger from '../logger';\nimport { chunks, exec, execWithSubShell, promiseWithResolvers, renderCommand } from '../utils';\nimport type { DestructiveChange, AssertionResults, AssertionResult } from '../workers/common';\nimport { DiagnosticReason, formatAssertionResults, formatError } from '../workers/common';\n\n/**\n * File events that we care about from chokidar.\n * In chokidar v4, EventName includes additional events like 'error', 'raw', 'ready', 'all'\n * that we need to filter out in the 'all' handler.\n */\nconst FILE_EVENTS = [EVENTS.ADD, EVENTS.CHANGE] as const;\ntype FileEvent = typeof FILE_EVENTS[number];\n\n/**\n * Type guard to check if an event is a file event we should process.\n */\nfunction isFileEvent(event: EventName): event is FileEvent {\n  return (FILE_EVENTS as readonly string[]).includes(event);\n}\n\nexport interface CommonOptions {\n  /**\n   * The name of the test case\n   */\n  readonly testCaseName: string;\n\n  /**\n   * The level of verbosity for logging.\n   *\n   * @default 0\n   */\n  readonly verbosity?: number;\n}\n\nexport interface WatchOptions extends CommonOptions {\n\n}\n\n/**\n * Options for the integration test runner\n */\nexport interface RunOptions extends CommonOptions {\n  /**\n   * Whether or not to run `cdk destroy` and cleanup the\n   * integration test stacks.\n   *\n   * Set this to false if you need to perform any validation\n   * or troubleshooting after deployment.\n   *\n   * @default true\n   */\n  readonly clean?: boolean;\n\n  /**\n   * If set to true, the integration test will not deploy\n   * anything and will simply update the snapshot.\n   *\n   * You should NOT use this method since you are essentially\n   * bypassing the integration test.\n   *\n   * @default false\n   */\n  readonly dryRun?: boolean;\n\n  /**\n   * If this is set to false then the stack update workflow will\n   * not be run\n   *\n   * The update workflow exists to check for cases where a change would cause\n   * a failure to an existing stack, but not for a newly created stack.\n   *\n   * @default true\n   */\n  readonly updateWorkflow?: boolean;\n}\n\n/**\n * An integration test runner that orchestrates executing\n * integration tests\n */\nexport class IntegTestRunner extends IntegRunner {\n  constructor(options: IntegRunnerOptions, destructiveChanges?: DestructiveChange[]) {\n    super(options);\n    this._destructiveChanges = destructiveChanges;\n  }\n\n  public async actualTests(): Promise<{ [testName: string]: TestCase } | undefined> {\n    const actualTestSuite = await this.actualTestSuite();\n    // We don't want new tests written in the legacy mode.\n    // If there is no existing snapshot _and_ this is a legacy\n    // test then point the user to the new `IntegTest` construct\n    if (!this.hasSnapshot() && actualTestSuite.type === 'legacy-test-suite') {\n      throw new Error(`${this.testName} is a new test. Please use the IntegTest construct ` +\n        'to configure the test\\n' +\n        'https://github.com/aws/aws-cdk/tree/main/packages/%40aws-cdk/integ-tests-alpha',\n      );\n    }\n\n    return actualTestSuite.testSuite;\n  }\n\n  public createCdkContextJson(): void {\n    if (!fs.existsSync(this.cdkContextPath)) {\n      fs.writeFileSync(this.cdkContextPath, JSON.stringify({\n        watch: { },\n      }, undefined, 2));\n    }\n  }\n\n  /**\n   * When running integration tests with the update path workflow\n   * it is important that the snapshot that is deployed is the current snapshot\n   * from the upstream branch. In order to guarantee that, first checkout the latest\n   * (to the user) snapshot from upstream\n   *\n   * It is not straightforward to figure out what branch the current\n   * working branch was created from. This is a best effort attempt to do so.\n   * This assumes that there is an 'origin'. `git remote show origin` returns a list of\n   * all branches and we then search for one that starts with `HEAD branch: `\n   */\n  private checkoutSnapshot(): void {\n    // We use the directory that contains the snapshot to run git commands in\n    //