diff --git a/tests/test-audio-info.cc b/tests/test-audio-info.cc
index e550730..0c8a819 100644
--- a/tests/test-audio-info.cc
+++ b/tests/test-audio-info.cc
@@ -37,7 +37,9 @@ static void test_file(const std::string& name, const FileInfo& info)
     Audio audio;
     auto file = audio.open(SAMPLES_DIR "/" + name);
     test("error", AudioError::OK, file->get_error());
-    test("codec", info.codec_name, file->get_codec_name());
+    test(file->get_codec_name(), true, !file->get_codec_name().compare(
+        0, info.codec_name.length(), info.codec_name
+    ));
     test("bit rate", info.bit_rate, file->get_bit_rate());
     test("sample rate", info.sample_rate, file->get_sample_rate());
     test("bps", info.bits_per_sample, file->get_bits_per_sample());
@@ -50,13 +52,13 @@ void test_audio_info()
     const double MP3_T = 5.0 * 1152 / 44100; // 5 frames * duration per mp3 frame
 
     std::map<std::string, FileInfo> files = {
-        {"1ch-96000Hz-24bps.flac", {"FLAC (Free Lossless Audio Codec)", 0, 96000, 24, 1, 0.1}},
-        {"2ch-48000Hz-16bps.flac", {"FLAC (Free Lossless Audio Codec)", 0, 48000, 16, 2, 0.1}},
-        {"2ch-44100Hz-16bps.wav", {"PCM signed 16-bit little-endian", 0, 44100, 16, 2, 0.1}},
-        {"2ch-44100Hz-128cbr.mp3", {"MP3 (MPEG audio layer 3)", 128000, 44100, 0, 2, MP3_T}},
-        {"2ch-44100Hz-320cbr.mp3", {"MP3 (MPEG audio layer 3)", 320000, 44100, 0, 2, MP3_T}},
-        {"2ch-44100Hz-V0.mp3", {"MP3 (MPEG audio layer 3)", 112000, 44100, 0, 2, MP3_T}},
-        {"2ch-44100Hz-V2.mp3", {"MP3 (MPEG audio layer 3)", 64000, 44100, 0, 2, MP3_T}},
+        {"1ch-96000Hz-24bps.flac", {"FLAC", 0, 96000, 24, 1, 0.1}},
+        {"2ch-48000Hz-16bps.flac", {"FLAC", 0, 48000, 16, 2, 0.1}},
+        {"2ch-44100Hz-16bps.wav", {"PCM", 0, 44100, 16, 2, 0.1}},
+        {"2ch-44100Hz-128cbr.mp3", {"MP3", 128000, 44100, 0, 2, MP3_T}},
+        {"2ch-44100Hz-320cbr.mp3", {"MP3", 320000, 44100, 0, 2, MP3_T}},
+        {"2ch-44100Hz-V0.mp3", {"MP3", 112000, 44100, 0, 2, MP3_T}},
+        {"2ch-44100Hz-V2.mp3", {"MP3", 64000, 44100, 0, 2, MP3_T}},
     };
     for (const auto& item : files) {
         run(