{"action":"created","comment":{"url":"https://api.github.com/repos/coreos/etcd/pulls/comments/61176868","id":61176868,"diff_hunk":"@@ -71,16 +86,16 @@ func TestMergeUser(t *testing.T) {\n \t\t\tUser{User: \"foo\", Roles: []string{\"role1\", \"role2\"}},\n \t\t\tfalse,\n \t\t},\n-\t\t{\n-\t\t\tUser{User: \"foo\"},\n-\t\t\tUser{User: \"foo\", Password: \"$2a$10$aUPOdbOGNawaVSusg3g2wuC3AH6XxIr9/Ms4VgDvzrAVOJPYzZILa\"},\n-\t\t\tUser{User: \"foo\", Roles: []string{}, Password: \"$2a$10$aUPOdbOGNawaVSusg3g2wuC3AH6XxIr9/Ms4VgDvzrAVOJPYzZILa\"},\n+\t\t{ // empty password will not overwrite the previous password","path":"etcdserver/auth/auth_test.go","position":30,"original_position":30,"commit_id":"bba08f6f79d6fbfb13b8db1c9f8911f9d9c9190a","original_commit_id":"bba08f6f79d6fbfb13b8db1c9f8911f9d9c9190a","user":{"login":"gyuho","id":6799218,"avatar_url":"https://avatars.githubusercontent.com/u/6799218?v=3","gravatar_id":"","url":"https://api.github.com/users/gyuho","html_url":"https://github.com/gyuho","followers_url":"https://api.github.com/users/gyuho/followers","following_url":"https://api.github.com/users/gyuho/following{/other_user}","gists_url":"https://api.github.com/users/gyuho/gists{/gist_id}","starred_url":"https://api.github.com/users/gyuho/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/gyuho/subscriptions","organizations_url":"https://api.github.com/users/gyuho/orgs","repos_url":"https://api.github.com/users/gyuho/repos","events_url":"https://api.github.com/users/gyuho/events{/privacy}","received_events_url":"https://api.github.com/users/gyuho/received_events","type":"User","site_admin":false},"body":"@xiang90 Just added the case to test `empty password will not overwrite the previous password`. PTAL. Thanks!","created_at":"2016-04-26T22:37:59Z","updated_at":"2016-04-26T22:37:59Z","html_url":"https://github.com/coreos/etcd/pull/5196#discussion_r61176868","pull_request_url":"https://api.github.com/repos/coreos/etcd/pulls/5196","_links":{"self":{"href":"https://api.github.com/repos/coreos/etcd/pulls/comments/61176868"},"html":{"href":"https://github.com/coreos/etcd/pull/5196#discussion_r61176868"},"pull_request":{"href":"https://api.github.com/repos/coreos/etcd/pulls/5196"}}},"pull_request":{"url":"https://api.github.com/repos/coreos/etcd/pulls/5196","id":67899552,"html_url":"https://github.com/coreos/etcd/pull/5196","diff_url":"https://github.com/coreos/etcd/pull/5196.diff","patch_url":"https://github.com/coreos/etcd/pull/5196.patch","issue_url":"https://api.github.com/repos/coreos/etcd/issues/5196","number":5196,"state":"open","locked":false,"title":"etcdserver/auth: check empty 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https://github.com/coreos/etcd/issues/5182.","created_at":"2016-04-26T14:49:23Z","updated_at":"2016-04-26T22:37:59Z","closed_at":null,"merged_at":null,"merge_commit_sha":"e25e72d6c1b4565e4c6f65c4f79d8851b95f16f1","assignee":null,"milestone":null,"commits_url":"https://api.github.com/repos/coreos/etcd/pulls/5196/commits","review_comments_url":"https://api.github.com/repos/coreos/etcd/pulls/5196/comments","review_comment_url":"https://api.github.com/repos/coreos/etcd/pulls/comments{/number}","comments_url":"https://api.github.com/repos/coreos/etcd/issues/5196/comments","statuses_url":"https://api.github.com/repos/coreos/etcd/statuses/bba08f6f79d6fbfb13b8db1c9f8911f9d9c9190a","head":{"label":"gyuho:password_check","ref":"password_check","sha":"bba08f6f79d6fbfb13b8db1c9f8911f9d9c9190a","user":{"login":"gyuho","id":6799218,"avatar_url":"https://avatars.githubusercontent.com/u/6799218?v=3","gravatar_id":"","url":"https://api.github.com/users/gyuho","html_url":"https://github.com/gyuho","followers_url":"https://api.github.com/users/gyuho/followers","following_url":"https://api.github.com/users/gyuho/following{/other_user}","gists_url":"https://api.github.com/users/gyuho/gists{/gist_id}","starred_url":"https://api.github.com/users/gyuho/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/gyuho/subscriptions","organizations_url":"https://api.github.com/users/gyuho/orgs","repos_url":"https://api.github.com/users/gyuho/repos","events_url":"https://api.github.com/users/gyuho/events{/privacy}","received_events_url":"https://api.github.com/users/gyuho/received_events","type":"User","site_admin":false},"repo":{"id":42982042,"name":"etcd","full_name":"gyuho/etcd","owner":{"login":"gyuho","id":6799218,"avatar_url":"https://avatars.githubusercontent.com/u/6799218?v=3","gravatar_id":"","url":"https://api.github.com/users/gyuho","html_url":"https://github.com/gyuho","followers_url":"https://api.github.com/users/gyuho/followers","following_url":"https://api.github.com/users/gyuho/following{/other_user}","gists_url":"https://api.github.com/users/gyuho/gists{/gist_id}","starred_url":"https://api.github.com/users/gyuho/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/gyuho/subscriptions","organizations_url":"https://api.github.com/users/gyuho/orgs","repos_url":"https://api.github.com/users/gyuho/repos","events_url":"https://api.github.com/users/gyuho/events{/privacy}","received_events_url":"https://api.github.com/users/gyuho/received_events","type":"User","site_admin":false},"private":false,"html_url":"https://github.com/gyuho/etcd","description":"A 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