docs: test for cli options

Author: Uzlopak

doc/api/cli.md

@@ -2602,11 +2602,15 @@ V8 options that are allowed are:
 
 <!-- node-options-v8 end -->
 
+<!-- node-options-others start -->
+
 `--perf-basic-prof-only-functions`, `--perf-basic-prof`,
 `--perf-prof-unwinding-info`, and `--perf-prof` are only available on Linux.
 
 `--enable-etw-stack-walking` is only available on Windows.
 
+<!-- node-options-others end -->
+
 ### `NODE_PATH=path[:…]`
 
 <!-- YAML

test/parallel/test-cli-node-options-docs.js

@@ -0,0 +1,62 @@
+'use strict';
+const common = require('../common');
+if (process.config.variables.node_without_node_options)
+  common.skip('missing NODE_OPTIONS support');
+
+// Test options specified by env variable.
+
+const assert = require('assert');
+const fs = require('fs');
+const path = require('path')
+
+const rootDir = path.resolve(__dirname, '..', '..');
+const cliMd = path.join(rootDir, 'doc', 'api', 'cli.md');
+const cliText = fs.readFileSync(cliMd, { encoding: 'utf8' });
+
+const nodeOptionsCC = fs.readFileSync(path.resolve(rootDir, 'src', 'node_options.cc'), 'utf8');
+const addOptionRE = /AddOption[\s\n\r]*\([\s\n\r]*"([^"]+)"(.*?)\);/gs;
+
+const nodeOptionsText = cliText.match(/<!-- node-options-node start -->(.*)<!-- node-options-others end -->/s)[1];
+
+for (const [, envVar, config ] of nodeOptionsCC.matchAll(addOptionRE)) {
+  let hasTrueAsDefaultValue = false
+  let isNodeOption = false;
+  if (envVar.startsWith('[')) {
+    continue;
+  }
+  
+  if (config.includes('kAllowedInEnvvar')) {
+    isNodeOption = true;
+  }
+  if (config.includes('kDisallowedInEnvvar')) {
+    isNodeOption = false;
+  }
+
+  if (/^\s*true\s*$/.test(config.split(',').pop())) {
+    hasTrueAsDefaultValue = true
+  }
+
+  if (!hasTrueAsDefaultValue && new RegExp(`\#\#\#.*\`${envVar}[\[=\\s\\b\`]`).test(cliText) === false) {
+    console.log(`Should have option ${envVar} documented`)
+  }
+
+  if (!hasTrueAsDefaultValue && new RegExp(`\#\#\#.*\`--no-${envVar.slice(2)}[\[=\\s\\b\`]`).test(cliText) === true) {
+    console.log(`Should not have option --no-${envVar.slice(2)} documented`)
+  }
+
+  if (hasTrueAsDefaultValue && new RegExp(`\#\#\#.*\`--no-${envVar.slice(2)}[\[=\\s\\b\`]`).test(cliText) === false) {
+    console.log(`Should have option --no-${envVar.slice(2)} documented`)
+  }
+  
+  if (!hasTrueAsDefaultValue && new RegExp(`\`${envVar}\``).test(nodeOptionsText) === false) {
+    console.log(`Should have option ${envVar} in NODE_OPTIONS documented`)
+  }
+
+  if (hasTrueAsDefaultValue && new RegExp(`\`--no-${envVar.slice(2)}`).test(cliText) === false) {
+    console.log(`Should have option --no-${envVar.slice(2)} in NODE_OPTIONS documented`)
+  }
+
+  if (!hasTrueAsDefaultValue && new RegExp(`\`--no-${envVar.slice(2)}`).test(cliText) === true) {
+    console.log(`Should not have option --no-${envVar.slice(2)} in NODE_OPTIONS documented`)
+  }
+}