From 2f05c55fa3d016476450eaa766766e1d87fc50c5 Mon Sep 17 00:00:00 2001
From: Brian Vaughn <bvaughn@fb.com>
Date: Wed, 22 Dec 2021 16:07:20 -0500
Subject: [PATCH] Run DevTools e2e tests on Circle CI

---
 .circleci/config.yml                       |  25 ++++
 scripts/circleci/run_devtools_e2e_tests.js | 165 +++++++++++++++++++++
 2 files changed, 190 insertions(+)
 create mode 100755 scripts/circleci/run_devtools_e2e_tests.js

diff --git a/.circleci/config.yml b/.circleci/config.yml
index 86f54450e51a..a9905a53b7a9 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -200,6 +200,28 @@ jobs:
       - store_artifacts:
           path: ./build/devtools.tgz
 
+  run_devtools_e2e_tests:
+    docker: *docker
+    environment: *environment
+    steps:
+      - checkout
+      - attach_workspace:
+          at: .
+      - run: yarn workspaces info | head -n -1 > workspace_info.txt
+      - *restore_node_modules
+      - run:
+          name: Install Packages
+          command: yarn --frozen-lockfile --cache-folder ~/.cache/yarn
+      - run:
+          name: Playwright install deps
+          command: |
+            npx playwright install
+            sudo npx playwright install-deps
+      - run:
+          environment:
+            RELEASE_CHANNEL: experimental
+          command: ./scripts/circleci/run_devtools_e2e_tests.js
+
   yarn_lint_build:
     docker: *docker
     environment: *environment
@@ -452,6 +474,9 @@ workflows:
       - build_devtools_and_process_artifacts:
           requires:
             - yarn_build_combined
+      - run_devtools_e2e_tests:
+          requires:
+            - build_devtools_and_process_artifacts
 
   fuzz_tests:
     unless: << pipeline.parameters.prerelease_commit_sha >>
diff --git a/scripts/circleci/run_devtools_e2e_tests.js b/scripts/circleci/run_devtools_e2e_tests.js
new file mode 100755
index 000000000000..fbd8baf3c64c
--- /dev/null
+++ b/scripts/circleci/run_devtools_e2e_tests.js
@@ -0,0 +1,165 @@
+#!/usr/bin/env node
+
+'use strict';
+
+const {spawn} = require('child_process');
+const {join} = require('path');
+
+const ROOT_PATH = join(__dirname, '..', '..');
+
+const inlinePackagePath = join(ROOT_PATH, 'packages', 'react-devtools-inline');
+const shellPackagePath = join(ROOT_PATH, 'packages', 'react-devtools-shell');
+
+let buildProcess = null;
+let serverProcess = null;
+let testProcess = null;
+
+function format(loggable) {
+  return `${loggable}`
+    .split('\n')
+    .filter(line => {
+      return line.trim() !== '';
+    })
+    .map(line => `  ${line}`)
+    .join('\n');
+}
+
+function logBright(loggable) {
+  console.log(`\x1b[1m${loggable}\x1b[0m`);
+}
+
+function logDim(loggable) {
+  const formatted = format(loggable, 2);
+  if (formatted !== '') {
+    console.log(`\x1b[2m${formatted}\x1b[0m`);
+  }
+}
+
+function logError(loggable) {
+  const formatted = format(loggable, 2);
+  if (formatted !== '') {
+    console.error(`\x1b[31m${formatted}\x1b[0m`);
+  }
+}
+
+function buildInlinePackage() {
+  logBright('Building inline packages');
+
+  buildProcess = spawn('yarn', ['build'], {cwd: inlinePackagePath});
+  buildProcess.stdout.on('data', data => {
+    logDim(data);
+  });
+  buildProcess.stderr.on('data', data => {
+    if (`${data}`.includes('Warning')) {
+      logDim(data);
+    } else {
+      logError(`Error:\n${data}`);
+
+      exitWithCode(1);
+    }
+  });
+  buildProcess.on('close', code => {
+    logBright('Inline package built');
+
+    runTestShell();
+  });
+}
+
+function runTestShell() {
+  const timeoutID = setTimeout(() => {
+    // Assume the test shell server failed to start.
+    logError('Testing shell server failed to start');
+    exitWithCode(1);
+  }, 30000);
+
+  logBright('Starting testing shell server');
+
+  serverProcess = spawn('yarn', ['start'], {cwd: shellPackagePath});
+  serverProcess.stdout.on('data', data => {
+    if (`${data}`.includes('Compiled successfully.')) {
+      logBright('Testing shell server running');
+
+      clearTimeout(timeoutID);
+
+      runEndToEndTests();
+    }
+  });
+  serverProcess.stderr.on('data', data => {
+    if (`${data}`.includes('EADDRINUSE')) {
+      // Something is occuprying this port;
+      // We could kill the process and restart but probably better to prompt the user to do this.
+
+      logError('Free up the port and re-run tests:');
+      logBright('  kill -9 $(lsof -ti:8080)');
+
+      exitWithCode(1);
+    } else if (`${data}`.includes('ERROR')) {
+      logError(`Error:\n${data}`);
+
+      exitWithCode(1);
+    } else {
+      // Non-fatal stuff like Babel optimization warnings etc.
+      logDim(data);
+    }
+  });
+}
+
+async function runEndToEndTests() {
+  logBright('Running e2e tests');
+
+  testProcess = spawn('yarn', ['test:e2e'], {cwd: inlinePackagePath});
+  testProcess.stdout.on('data', data => {
+    // Log without formatting because Playwright applies its own formatting.
+    const formatted = format(data);
+    if (formatted !== '') {
+      console.log(formatted);
+    }
+  });
+  testProcess.stderr.on('data', data => {
+    // Log without formatting because Playwright applies its own formatting.
+    const formatted = format(data);
+    if (formatted !== '') {
+      console.error(formatted);
+    }
+
+    exitWithCode(1);
+  });
+  testProcess.on('close', code => {
+    logBright(`Tests completed with code: ${code}`);
+
+    exitWithCode(code);
+  });
+}
+
+function exitWithCode(code) {
+  if (buildProcess !== null) {
+    try {
+      logBright('Shutting down build process');
+      buildProcess.kill();
+    } catch (error) {
+      logError(error);
+    }
+  }
+
+  if (serverProcess !== null) {
+    try {
+      logBright('Shutting down shell server process');
+      serverProcess.kill();
+    } catch (error) {
+      logError(error);
+    }
+  }
+
+  if (testProcess !== null) {
+    try {
+      logBright('Shutting down test process');
+      testProcess.kill();
+    } catch (error) {
+      logError(error);
+    }
+  }
+
+  process.exit(code);
+}
+
+buildInlinePackage();