Redmine

According to Capybara's documentation, Capybara will automatically wait until the HTML condition is met if you use the assertions provided by Capybara.
The current Redmine system test includes a section that is sometimes unreliable, known as a "flaky" part, which may or may not succeed during runtime.

By giving preference to the use of Capybara's assertions, it is possible to mitigate the test's flakiness.