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Membrane Multimedia Framework (Core)
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lib/membrane/testing/pipeline/assertions.ex
defmodule Membrane.Testing.Pipeline.Assertions do
@doc """
Asserts that a message sent from `Membrane.Testing.Pipeline` matching `pattern` was or is going to be received
within the `timeout` period, specified in milliseconds.
The `pattern` argument must be a match pattern. Flunks with `failure_message`
if a message matching `pattern` is not received.
For example to wait for message indicating `handle_prepared_to_playing` callback
was called:
assert_receive_message :handle_prepared_to_playing
"""
defmacro assert_receive_message(
pattern,
timeout \\ Application.fetch_env!(:ex_unit, :assert_receive_timeout),
failure_message \\ nil
) do
import ExUnit.Assertions, only: [assert_receive: 3]
quote do
assert_receive {Membrane.Testing.Pipeline, unquote(pattern)},
unquote(timeout),
unquote(failure_message)
end
end
end