test: add batch of known issue tests

This commit adds tests for several known issues.

Refs: https://github.com/nodejs/node/issues/1901
Refs: https://github.com/nodejs/node/issues/728
Refs: https://github.com/nodejs/node/issues/4778
Refs: https://github.com/nodejs/node/issues/947
Refs: https://github.com/nodejs/node/issues/2734
PR-URL: https://github.com/nodejs/node/pull/5653
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>

test/known_issues/test-child-process-max-buffer.js

@@ -0,0 +1,16 @@
+'use strict';
+// Refs: https://github.com/nodejs/node/issues/1901
+const common = require('../common');
+const assert = require('assert');
+const cp = require('child_process');
+const unicode = '中文测试'; // Length = 4, Byte length = 13
+
+if (process.argv[2] === 'child') {
+  console.log(unicode);
+} else {
+  const cmd = `${process.execPath} ${__filename} child`;
+
+  cp.exec(cmd, { maxBuffer: 10 }, common.mustCall((err, stdout, stderr) => {
+    assert.strictEqual(err.message, 'stdout maxBuffer exceeded');
+  }));
+}

test/known_issues/test-events-known-properties.js

@@ -0,0 +1,12 @@
+'use strict';
+// Refs: https://github.com/nodejs/node/issues/728
+const common = require('../common');
+const assert = require('assert');
+const EventEmitter = require('events');
+const ee = new EventEmitter();
+
+ee.on('__proto__', common.mustCall((data) => {
+  assert.strictEqual(data, 42);
+}));
+
+ee.emit('__proto__', 42);

test/known_issues/test-module-deleted-extensions.js

@@ -0,0 +1,17 @@
+'use strict';
+// Refs: https://github.com/nodejs/node/issues/4778
+const common = require('../common');
+const assert = require('assert');
+const fs = require('fs');
+const path = require('path');
+const file = path.join(common.tmpDir, 'test-extensions.foo.bar');
+
+common.refreshTmpDir();
+fs.writeFileSync(file, '', 'utf8');
+require.extensions['.foo.bar'] = (module, path) => {};
+delete require.extensions['.foo.bar'];
+require.extensions['.bar'] = common.mustCall((module, path) => {
+  assert.strictEqual(module.id, file);
+  assert.strictEqual(path, file);
+});
+require(path.join(common.tmpDir, 'test-extensions'));

test/known_issues/test-process-external-stdio-close.js

@@ -0,0 +1,23 @@
+'use strict';
+// Refs: https://github.com/nodejs/node/issues/947
+const common = require('../common');
+const assert = require('assert');
+const cp = require('child_process');
+
+if (process.argv[2] === 'child') {
+  process.on('message', common.mustCall((msg) => {
+    assert.strictEqual(msg, 'go');
+    console.log('logging should not cause a crash');
+    process.disconnect();
+  }));
+} else {
+  const child = cp.fork(__filename, ['child'], {silent: true});
+
+  child.on('close', common.mustCall((exitCode, signal) => {
+    assert.strictEqual(exitCode, 0);
+    assert.strictEqual(signal, null);
+  }));
+
+  child.stdout.destroy();
+  child.send('go');
+}

test/known_issues/test-vm-getters.js

@@ -0,0 +1,19 @@
+'use strict';
+// Refs: https://github.com/nodejs/node/issues/2734
+require('../common');
+const assert = require('assert');
+const vm = require('vm');
+const sandbox = {};
+
+Object.defineProperty(sandbox, 'prop', {
+  get() {
+    return 'foo';
+  }
+});
+
+const descriptor = Object.getOwnPropertyDescriptor(sandbox, 'prop');
+const context = vm.createContext(sandbox);
+const code = 'Object.getOwnPropertyDescriptor(this, "prop");';
+const result = vm.runInContext(code, context);
+
+assert.strictEqual(result, descriptor);