{"action":"opened","issue":{"url":"https://api.github.com/repos/facebook/react/issues/4590","labels_url":"https://api.github.com/repos/facebook/react/issues/4590/labels{/name}","comments_url":"https://api.github.com/repos/facebook/react/issues/4590/comments","events_url":"https://api.github.com/repos/facebook/react/issues/4590/events","html_url":"https://github.com/facebook/react/issues/4590","id":99951342,"number":4590,"title":"`grunt test` broken","user":{"login":"springuper","id":687412,"avatar_url":"https://avatars.githubusercontent.com/u/687412?v=3","gravatar_id":"","url":"https://api.github.com/users/springuper","html_url":"https://github.com/springuper","followers_url":"https://api.github.com/users/springuper/followers","following_url":"https://api.github.com/users/springuper/following{/other_user}","gists_url":"https://api.github.com/users/springuper/gists{/gist_id}","starred_url":"https://api.github.com/users/springuper/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/springuper/subscriptions","organizations_url":"https://api.github.com/users/springuper/orgs","repos_url":"https://api.github.com/users/springuper/repos","events_url":"https://api.github.com/users/springuper/events{/privacy}","received_events_url":"https://api.github.com/users/springuper/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-08-10T02:00:49Z","updated_at":"2015-08-10T02:00:49Z","closed_at":null,"body":"`grunt test` command is broken after commit `2f07935`, the error message is\r\n\r\n```\r\nRunning \"jest\" task\r\nrunning jest (this may take a while)\r\nUsing Jest CLI v0.4.18\r\n FAIL  src/addons/__tests__/ReactFragment-test.js\r\nTypeError: Cannot read property 'length' of undefined\r\n  at maybeReadMore_ (_stream_readable.js:426:18)\r\n  at /Users/shangchun/Repos/react2/react/node_modules/jest-cli/src/lib/FakeTimers.js:342:7\r\n  at doNTCallback0 (node.js:408:9)\r\n  at process._tickCallback (node.js:337:13)\r\n\r\n FAIL  src/addons/transitions/__tests__/ReactTransitionChildMapping-test.js\r\nError: Attempted to send a message to the worker before the response from the last message was received! Worker processes can only handle one m\r\nessage at a time.\r\n FAIL  src/addons/link/__tests__/ReactLinkPropTypes-test.js\r\nTypeError: Cannot read property 'length' of undefined\r\n  at maybeReadMore_ (_stream_readable.js:426:18)\r\n  at /Users/shangchun/Repos/react2/react/node_modules/jest-cli/src/lib/FakeTimers.js:342:7\r\n  at doNTCallback0 (node.js:408:9)\r\n  at process._tickCallback (node.js:337:13)\r\n...\r\n```"}}