When the request.remote_addr remains the default for testing, which is 0.0.0.0, the exception is simply raised inline (bystepping the regular exception handling from rescue_action). If the request.remote_addr is anything else, the regular rescue_action process takes place. This means you can test your rescue_action code by setting remote_addr to something else than 0.0.0.0.
The exception is stored in the exception accessor for further inspection.
Methods
Attributes
| [RW] | exception |
Public Instance methods
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# File vendor/rails/actionpack/lib/action_controller/test_case.rb, line 87
87: def rescue_action_without_handler(e)
88: self.exception = e
89:
90: if request.remote_addr == "0.0.0.0"
91: raise(e)
92: else
93: super(e)
94: end
95: end