test: compute list of expected globals from ESLint config file

Author: aduh95

.gitignore

@@ -102,6 +102,8 @@ _UpgradeReport_Files/
 tools/*/*.i
 tools/*/*.i.tmp
 
+test/common/knownGlobals.json
+
 # === Rules for release artifacts ===
 /*.tar.*
 /*.pkg

Makefile

@@ -189,6 +189,7 @@ testclean:
 # Next one is legacy remove this at some point
 	$(RM) -r test/tmp*
 	$(RM) -r test/.tmp*
+	$(RM) -d test/common/knownGlobals.json
 
 .PHONY: distclean
 .NOTPARALLEL: distclean
@@ -280,8 +281,11 @@ v8:
 	export PATH="$(NO_BIN_OVERRIDE_PATH)" && \
 		tools/make-v8.sh $(V8_ARCH).$(BUILDTYPE_LOWER) $(V8_BUILD_OPTIONS)
 
+test/common/knownGlobals.json: test/common/parseEslintConfigForKnownGlobals.js lib/.eslintrc.yaml
+	$(NODE) $< > $@
+
 .PHONY: jstest
-jstest: build-addons build-js-native-api-tests build-node-api-tests ## Runs addon tests and JS tests
+jstest: build-addons build-js-native-api-tests build-node-api-tests test/common/knownGlobals.json ## Runs addon tests and JS tests
 	$(PYTHON) tools/test.py $(PARALLEL_ARGS) --mode=$(BUILDTYPE_LOWER) \
 		$(TEST_CI_ARGS) \
 		--skip-tests=$(CI_SKIP_TESTS) \

test/common/index.js

@@ -37,11 +37,6 @@ const bits = ['arm64', 'mips', 'mipsel', 'ppc64', 'riscv64', 's390x', 'x64']
   .includes(process.arch) ? 64 : 32;
 const hasIntl = !!process.config.variables.v8_enable_i18n_support;
 
-const {
-  atob,
-  btoa
-} = require('buffer');
-
 // Some tests assume a umask of 0o022 so set that up front. Tests that need a
 // different umask will set it themselves.
 //
@@ -257,61 +252,16 @@ function platformTimeout(ms) {
   return ms; // ARMv8+
 }
 
-let knownGlobals = [
-  atob,
-  btoa,
-  clearImmediate,
-  clearInterval,
-  clearTimeout,
-  global,
-  setImmediate,
-  setInterval,
-  setTimeout,
-  queueMicrotask,
-];
-
-// TODO(@jasnell): This check can be temporary. AbortController is
-// not currently supported in either Node.js 12 or 10, making it
-// difficult to run tests comparatively on those versions. Once
-// all supported versions have AbortController as a global, this
-// check can be removed and AbortController can be added to the
-// knownGlobals list above.
-if (global.AbortController)
-  knownGlobals.push(global.AbortController);
-
-if (global.gc) {
-  knownGlobals.push(global.gc);
-}
-
-if (global.performance) {
-  knownGlobals.push(global.performance);
-}
-if (global.PerformanceMark) {
-  knownGlobals.push(global.PerformanceMark);
-}
-if (global.PerformanceMeasure) {
-  knownGlobals.push(global.PerformanceMeasure);
-}
-
-// TODO(@ethan-arrowood): Similar to previous checks, this can be temporary
-// until v16.x is EOL. Once all supported versions have structuredClone we
-// can add this to the list above instead.
-if (global.structuredClone) {
-  knownGlobals.push(global.structuredClone);
-}
-
-if (global.fetch) {
-  knownGlobals.push(fetch);
-}
-if (hasCrypto && global.crypto) {
-  knownGlobals.push(global.crypto);
-  knownGlobals.push(global.Crypto);
-  knownGlobals.push(global.CryptoKey);
-  knownGlobals.push(global.SubtleCrypto);
+let knownGlobals;
+try {
+  knownGlobals = require('./knownGlobals.json');
+} catch (err) {
+  console.info('You may need to run `make test/common/knownGlobals.json`.');
+  throw err;
 }
 
 function allowGlobals(...allowlist) {
-  knownGlobals = knownGlobals.concat(allowlist);
+  knownGlobals.push(...allowlist);
 }
 
 if (process.env.NODE_TEST_KNOWN_GLOBALS !== '0') {
@@ -323,9 +273,10 @@ if (process.env.NODE_TEST_KNOWN_GLOBALS !== '0') {
   function leakedGlobals() {
     const leaked = [];
 
-    for (const val in global) {
-      if (!knownGlobals.includes(global[val])) {
-        leaked.push(val);
+    const globals = Object.getOwnPropertyDescriptors(global);
+    for (const val in globals) {
+      if (globals[val].configurable && !knownGlobals.includes(val) && !knownGlobals.includes(global[val])) {
+        leaked.push(val.toString());
       }
     }
 
@@ -335,7 +286,7 @@ if (process.env.NODE_TEST_KNOWN_GLOBALS !== '0') {
   process.on('exit', function() {
     const leaked = leakedGlobals();
     if (leaked.length > 0) {
-      assert.fail(`Unexpected global(s) found: ${leaked.join(', ')}`);
+      assert.fail(`Unexpected global(s) found: ${leaked.join(', ')}. Add it to lib/.eslint.yaml or call common.allowGlobals().`);
     }
   });
 }

test/common/parseEslintConfigForKnownGlobals.js

@@ -0,0 +1,42 @@
+#!/usr/bin/env node
+'use strict';
+
+const fs = require('fs');
+const path = require('path');
+const readline = require('readline');
+
+const searchLines = [
+  '  no-restricted-globals:',
+  '  node-core/prefer-primordials:',
+];
+
+const restrictedGlobalLine = /^\s{4}- name:\s?([^#\s]+)/;
+const closingLine = /^\s{0,3}[^#\s]/;
+
+process.stdout.write('["process"');
+
+const eslintConfig = readline.createInterface({
+  input: fs.createReadStream(
+    path.join(__dirname, '..', '..', 'lib', '.eslintrc.yaml')
+  ),
+  crlfDelay: Infinity,
+});
+
+let isReadingGlobals = false;
+eslintConfig.on('line', (line) => {
+  if (isReadingGlobals) {
+    const match = restrictedGlobalLine.exec(line);
+    if (match != null) {
+      process.stdout.write(',' + JSON.stringify(match[1]));
+    } else if (closingLine.test(line)) {
+      isReadingGlobals = false;
+    }
+  } else if (line === searchLines[0]) {
+    searchLines.shift();
+    isReadingGlobals = true;
+  }
+});
+
+eslintConfig.once('close', () => {
+  process.stdout.write(']');
+});

test/parallel/test-repl-autocomplete.js

@@ -15,6 +15,8 @@ common.skipIfDumbTerminal();
 const tmpdir = require('../common/tmpdir');
 tmpdir.refresh();
 
+common.allowGlobals('require', '_', '_error', ...require('module').builtinModules);
+
 process.throwDeprecation = true;
 
 const defaultHistoryPath = path.join(tmpdir.path, '.node_repl_history');

test/parallel/test-repl-autolibs.js

@@ -26,6 +26,8 @@ const assert = require('assert');
 const util = require('util');
 const repl = require('repl');
 
+common.allowGlobals('require', '_', '_error', ...require('module').builtinModules);
+
 const putIn = new ArrayStream();
 repl.start('', putIn, null, true);
 

test/parallel/test-repl-envvars.js

@@ -2,13 +2,15 @@
 
 // Flags: --expose-internals
 
-require('../common');
+const common = require('../common');
 const stream = require('stream');
 const REPL = require('internal/repl');
 const assert = require('assert');
 const inspect = require('util').inspect;
 const { REPL_MODE_SLOPPY, REPL_MODE_STRICT } = require('repl');
 
+common.allowGlobals('require', '_', '_error', ...require('module').builtinModules);
+
 const tests = [
   {
     env: {},

test/parallel/test-repl-history-navigation.js

@@ -18,6 +18,8 @@ tmpdir.refresh();
 process.throwDeprecation = true;
 process.on('warning', common.mustNotCall());
 
+common.allowGlobals('require', '_', '_error', ...require('module').builtinModules);
+
 const defaultHistoryPath = path.join(tmpdir.path, '.node_repl_history');
 
 // Create an input stream specialized for testing an array of actions

test/parallel/test-repl-history-perm.js

@@ -20,6 +20,8 @@ const Duplex = require('stream').Duplex;
 // Invoking the REPL should create a repl history file at the specified path
 // and mode 600.
 
+common.allowGlobals('require', '_', '_error', ...require('module').builtinModules);
+
 const stream = new Duplex();
 stream.pause = stream.resume = () => {};
 // ends immediately

test/parallel/test-repl-let-process.js

@@ -1,8 +1,10 @@
 'use strict';
-require('../common');
+const common = require('../common');
 const ArrayStream = require('../common/arraystream');
 const repl = require('repl');
 
+common.allowGlobals('require', '_', '_error', ...require('module').builtinModules);
+
 // Regression test for https://github.com/nodejs/node/issues/6802
 const input = new ArrayStream();
 repl.start({ input, output: process.stdout, useGlobal: true });

test/parallel/test-repl-options.js

@@ -28,6 +28,8 @@ const assert = require('assert');
 const repl = require('repl');
 const cp = require('child_process');
 
+common.allowGlobals('require', '_', '_error', ...require('module').builtinModules);
+
 assert.strictEqual(repl.repl, undefined);
 repl._builtinLibs; // eslint-disable-line no-unused-expressions
 

test/parallel/test-repl-persistent-history.js

@@ -17,6 +17,8 @@ common.skipIfDumbTerminal();
 const tmpdir = require('../common/tmpdir');
 tmpdir.refresh();
 
+common.allowGlobals('require', '_', '_error', ...require('module').builtinModules);
+
 // Mock os.homedir()
 os.homedir = function() {
   return tmpdir.path;

test/parallel/test-repl-reset-event.js

@@ -26,7 +26,7 @@ const assert = require('assert');
 const repl = require('repl');
 const util = require('util');
 
-common.allowGlobals(42);
+common.allowGlobals(42, 'require', '_', '_error', ...require('module').builtinModules);
 
 // Create a dummy stream that does nothing
 const dummy = new ArrayStream();

test/parallel/test-repl-reverse-search.js

@@ -16,6 +16,8 @@ common.allowGlobals('aaaa');
 const tmpdir = require('../common/tmpdir');
 tmpdir.refresh();
 
+common.allowGlobals('require', '_', '_error', ...require('module').builtinModules);
+
 const defaultHistoryPath = path.join(tmpdir.path, '.node_repl_history');
 
 // Create an input stream specialized for testing an array of actions

test/parallel/test-repl-underscore.js

@@ -1,10 +1,12 @@
 'use strict';
 
-require('../common');
+const common = require('../common');
 const assert = require('assert');
 const repl = require('repl');
 const stream = require('stream');
 
+common.allowGlobals('require', '_', '_error', ...require('module').builtinModules);
+
 testSloppyMode();
 testStrictMode();
 testResetContext();

test/parallel/test-repl-use-global.js

@@ -7,6 +7,8 @@ const stream = require('stream');
 const repl = require('internal/repl');
 const assert = require('assert');
 
+common.allowGlobals('require', '_', '_error', ...require('module').builtinModules);
+
 // Array of [useGlobal, expectedResult] pairs
 const globalTestCases = [
   [false, 'undefined'],

test/parallel/test-repl.js

@@ -39,6 +39,7 @@ const moduleFilename = fixtures.path('a');
 global.invoke_me = function(arg) {
   return `invoked ${arg}`;
 };
+common.allowGlobals('invoke_me', 'require', 'a', '_', '_error', 'message', ...require('module').builtinModules);
 
 // Helpers for describing the expected output:
 const kArrow = /^ *\^+ *$/;  // Arrow of ^ pointing to syntax error location

test/sequential/test-module-loading.js

@@ -278,6 +278,7 @@ assert.throws(
 
   assert.deepStrictEqual(children, {
     'common/index.js': {
+      'common/knownGlobals.json': {},
       'common/tmpdir.js': {}
     },
     'fixtures/not-main-module.js': {},