Add failing test: after hook not run if beforeEach skipped test

Related to #2286.

test/integration/fixtures/regression/issue-2286.js

@@ -0,0 +1,5 @@
+describe('suite', function () {
+  beforeEach(function () { this.skip() })
+  after(function () { console.log('after in suite') })
+  it('test', function () {})
+})

test/integration/regression.js

@@ -50,4 +50,18 @@ describe('regressions', function() {
       done();
     });
   })
+
+  it('issue-2286: after doesn\'t execute if test was skipped in beforeEach', function(done) {
+    var args = [];
+    run('regression/issue-2286.js', args, function(err, res) {
+      var occurences = function(str) {
+        var pattern = new RegExp(str, 'g');
+        return (res.output.match(pattern) || []).length;
+      };
+
+      assert(!err);
+      assert.equal(occurences('after in suite'), 1);
+      done();
+    });
+  })
 });