fixes #18976 - separate tests with different request formats
When making a JSON format request followed by a request with no explicit format, Rails 5 is now memorising that it's requesting application/json instead of resetting to HTML or similar. It shouldn't be assumed that the state is reset between requests within a test (rails/rails@33db421).
Related issues
Refactor #18976: HostsControllerTest REMOTE_USER tests should not assume format of subsequent requests
Added by Dominic Cleal about 7 years ago
fixes #18976 - separate tests with different request formats
When making a JSON format request followed by a request with no explicit
format, Rails 5 is now memorising that it's requesting application/json
instead of resetting to HTML or similar. It shouldn't be assumed that
the state is reset between requests within a test (rails/rails@33db421).