fix cancel

Author: dignifiedquire

packages/jest-jasmine2/src/queue_runner.js

@@ -71,10 +71,15 @@ function queueRunner(options: Options) {
     );
   };
 
-  return options.queueableFns.reduce(
-    (promise, fn) => promise.then(() => mapper(fn)),
-    Promise.resolve(),
-  );
+  return PCancelable.fn(onCancel => {
+    onCancel(() => {
+      token.cancel();
+    });
+    return options.queueableFns.reduce(
+      (promise, fn) => promise.then(() => mapper(fn)),
+      Promise.resolve(),
+    );
+  });
 }
 
 module.exports = queueRunner;