/* NAME adpcm_test.go DESCRIPTION adpcm_test.go contains tests for the adpcm package. AUTHOR Trek Hopton <trek@ausocean.org> LICENSE adpcm_test.go is Copyright (C) 2018 the Australian Ocean Lab (AusOcean) It is free software: you can redistribute it and/or modify them under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. It is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License in gpl.txt. If not, see [GNU licenses](http://www.gnu.org/licenses). */ package adpcm import ( "bytes" "io/ioutil" "testing" ) // TestEncodeBlock will read PCM data, encode it in blocks and generate ADPCM // then compare the result with expected ADPCM. func TestEncodeBlock(t *testing.T) { // Read input pcm. pcm, err := ioutil.ReadFile("../../../test/test-data/av/input/original_8kHz_adpcm_test.pcm") if err != nil { t.Errorf("Unable to read input PCM file: %v", err) } // Encode adpcm. comp := bytes.NewBuffer(make([]byte, 0, EncBytes(len(pcm)))) enc := NewEncoder(comp) _, err = enc.Write(pcm) if err != nil { t.Errorf("Unable to write to encoder: %v", err) } // Read expected adpcm file. exp, err := ioutil.ReadFile("../../../test/test-data/av/output/encoded_8kHz_adpcm_test2.adpcm") if err != nil { t.Errorf("Unable to read expected ADPCM file: %v", err) } if !bytes.Equal(comp.Bytes(), exp) { t.Error("ADPCM generated does not match expected ADPCM") } } // TestDecodeBlock will read encoded ADPCM, decode it in blocks and then compare the // resulting PCM with the expected decoded PCM. func TestDecodeBlock(t *testing.T) { // Read adpcm. comp, err := ioutil.ReadFile("../../../test/test-data/av/input/encoded_8kHz_adpcm_test2.adpcm") if err != nil { t.Errorf("Unable to read input ADPCM file: %v", err) } // Decode adpcm. decoded := bytes.NewBuffer(make([]byte, 0, len(comp)*4)) dec := NewDecoder(decoded) _, err = dec.Write(comp) if err != nil { t.Errorf("Unable to write to decoder: %v", err) } // Read expected pcm file. exp, err := ioutil.ReadFile("../../../test/test-data/av/output/decoded_8kHz_adpcm_test2.pcm") if err != nil { t.Errorf("Unable to read expected PCM file: %v", err) } if !bytes.Equal(decoded.Bytes(), exp) { t.Error("PCM generated does not match expected PCM") } }