Address PR review comments mocha org

Author: 73rhodes

bin/mocha.js

@@ -110,9 +110,10 @@ if (mochaArgs['node-option'] || Object.keys(nodeArgs).length || hasInspect) {
   proc.on('exit', (code, signal) => {
     process.on('exit', () => {
       if (signal) {
+        const numericSignal =
+          typeof signal === 'string' ? os.constants.signals[signal] : signal;
         if (mochaArgs['posix-exit-codes'] === true) {
-          process.exitCode = 128 + os.constants.signals[signal];
-          process.exit(process.exitCode);
+          process.exit(128 + numericSignal);
         } else {
           process.kill(process.pid, signal);
         }

…ion/fixtures/posix-exit-codes.fixture.js …tion/fixtures/signals-sigabrt.fixture.jstest/integration/fixtures/posix-exit-codes.fixture.js renamed to test/integration/fixtures/signals-sigabrt.fixture.js test/integration/fixtures/posix-exit-codes.fixture.js renamed to test/integration/fixtures/signals-sigabrt.fixture.js

@@ -0,0 +1,7 @@
+'use strict';
+
+describe('signal suite', function () {
+  it('test SIGTERM', function () {
+    process.kill(process.pid, 'SIGTERM');
+  });
+});

test/integration/fixtures/signals-sigterm.fixture.js

@@ -4,30 +4,41 @@ var helpers = require('../helpers');
 var runMocha = helpers.runMocha;
 
 describe('--posix-exit-codes', function () {
-  var mocha;
-
-  function killSubprocess() {
-    mocha.kill('SIGKILL');
-  }
+  describe('when enabled with node options', function () {
+    var args = ['--no-warnings', '--posix-exit-codes'];
 
-  // these two handlers deal with a ctrl-c on command-line
-  before(function () {
-    process.on('SIGINT', killSubprocess);
-  });
+    it('should exit with code 134 on SIGABRT', function (done) {
+      var fixture = 'signals-sigabrt.fixture.js';
+      runMocha(fixture, args, function postmortem(err, res) {
+        if (err) {
+          return done(err);
+        }
+        expect(res.code, 'to be', 134);
+        done();
+      });
+    });
 
-  after(function () {
-    process.removeListener('SIGINT', killSubprocess);
+    it('should exit with code 143 on SIGTERM', function (done) {
+      var fixture = 'signals-sigterm.fixture.js';
+      runMocha(fixture, args, function postmortem(err, res) {
+        if (err) {
+          return done(err);
+        }
+        expect(res.code, 'to be', 143);
+        done();
+      });
+    });
   });
 
-  describe('when enabled with node options', function () {
-    it('should exit with code 134 on SIGABRT', function (done) {
-      var fixture = 'posix-exit-codes.fixture.js';
-      var args = ['--no-warnings', '--posix-exit-codes'];
-      mocha = runMocha(fixture, args, function postmortem(err, res) {
+  describe('when not enabled with node options', function () {
+    it('should exit with code null on SIGABRT', function (done) {
+      var fixture = 'signals-sigabrt.fixture.js';
+      var args = ['--no-warnings'];
+      runMocha(fixture, args, function postmortem(err, res) {
         if (err) {
           return done(err);
         }
-        expect(res.code, 'to be', 134);
+        expect(res.code, 'to be', null);
         done();
       });
     });