midi_player/test/event_test.exs

28 lines
830 B
Elixir

defmodule MIDIPlayer.EventTest do
use ExUnit.Case
doctest MIDIPlayer.Event
alias MIDIPlayer.Event
test "note event" do
assert %Event.Note{channel: 0, tone: 60, start_time: 1, end_time: 1000, velocity: 127} =
Event.Note.new(0, 60, 1, 1000, 127)
end
test "change program event" do
assert %Event.ChangeProgram{channel: 0, time: 1, program: 40} =
Event.ChangeProgram.new(0, 1, 40)
end
test "note event conversion" do
note = Event.Note.new(0, 60, 1, 1000, 127)
[note_on, note_off] = Event.convert(note)
assert {1, <<0x90, 60, 127>>} = note_on
assert {1000, <<0x80, 60, 64>>} = note_off
end
test "change program event conversion" do
change_program = Event.ChangeProgram.new(0, 1, 40)
assert [{1, <<0xC0, 40>>}] = Event.convert(change_program)
end
end