50 lines
1.3 KiB
Elixir
50 lines
1.3 KiB
Elixir
defmodule MPEGAudioFrameParserIntegrationTest do
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use ExUnit.Case
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test "128kbps 44100hz MP3" do
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MPEGAudioFrameParser.start_link()
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assert count_frames("test/fixtures/test_128_44100.mp3") == 254
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end
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test "64kbps 12000hz MP3" do
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MPEGAudioFrameParser.start_link()
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assert count_frames("test/fixtures/test_64_12000.mp3") == 140
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end
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test "160kbps 24000hz MP3" do
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MPEGAudioFrameParser.start_link()
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assert count_frames("test/fixtures/test_160_24000.mp3") == 277
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end
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test "128kbps 44100hz MP3 with CRC protection" do
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MPEGAudioFrameParser.start_link()
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assert count_frames("test/fixtures/test_128_44100_crc_protection.mp3") == 254
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end
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test "64kbps 22050hz MP2" do
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MPEGAudioFrameParser.start_link()
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assert count_frames("test/fixtures/test_64_22050.mp2") == 126
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end
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defp count_frames(path) do
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File.cwd!()
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|> Path.join(path)
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|> File.open!()
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|> read_bytes(4096, 0)
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end
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defp read_bytes(file, block_size, total_frames) do
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IO.binread(file, block_size)
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|> handle_read(file, block_size, total_frames)
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end
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defp handle_read(:eof, _file, _block_size, total_frames) do
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total_frames
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end
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defp handle_read(data, file, block_size, total_frames) do
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new_frames = MPEGAudioFrameParser.add_packet(data)
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read_bytes(file, block_size, total_frames + length(new_frames))
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end
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end
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