test_probe v0.0.2 TestProbe.Message
The %Message{}
struct is used to wrap incoming messages.
Along with payload it stores type of the message and sender reference if applicable.
%Message{
type: :any | :call | :cast | :info, # type of the message
data: :any | payload, # message body
from: :any | {pid, ref} | nil # set in case of call
}
It is also used as a pattern when you need to match message.
%Message{} # an absolute wildcard, matches any message
%Message{type: :call} # matches any 'call' message
%Message{data: :hello} # matches any message with payload == :hello
Link to this section Summary
Functions
Matches two messages. You may use a wildcard :any
to specify that any value
under a particular key would be considered a match
Link to this section Types
Link to this section Functions
Matches two messages. You may use a wildcard :any
to specify that any value
under a particular key would be considered a match.
Examples
If you’re expecting message by payload, but don’t really care of where it came from:
m = %Message{type: :call, data: "hey", from: {pid, ref}}
match(m, %Message{data: "hey"}) == true