additional test

test/integration/fixtures/uncaught/after-runner.fixture.js

@@ -0,0 +1,9 @@
+'use strict';
+
+describe("Uncaught exception after runner's end", () => {
+  it('test', () => {
+    setTimeout(() => {
+      throw new Error('Unexpected crash');
+    }, 100);
+  });
+});

test/integration/uncaught.spec.js

@@ -3,6 +3,7 @@
 var assert = require('assert');
 var helpers = require('./helpers');
 var run = helpers.runMochaJSON;
+var runMocha = helpers.runMocha;
 var args = [];
 
 describe('uncaught exceptions', function() {
@@ -100,6 +101,28 @@ describe('uncaught exceptions', function() {
     });
   });
 
+  it("handles uncaught exceptions after runner's end", function(done) {
+    runMocha(
+      'uncaught/after-runner.fixture.js',
+      args,
+      function(err, res) {
+        if (err) {
+          return done(err);
+        }
+
+        expect(res, 'to have failed').and('to satisfy', {
+          failing: 0,
+          passing: 1,
+          pending: 0,
+          output: expect.it('to contain', 'Error: Unexpected crash')
+        });
+
+        done();
+      },
+      'pipe'
+    );
+  });
+
   it('issue-1327: should run the first test and then bail', function(done) {
     run('uncaught/issue-1327.fixture.js', args, function(err, res) {
       if (err) {