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https://github.com/vsariola/sointu.git
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The Model was getting unmaintanable mess. This is an attempt to refactor/rewrite the Model so that data of certain type is exposed in standardized way, offering certain standard manipulations for that data type, and on the GUI side, certain standard widgets to tied to that data. This rewrite closes #72, #106 and #120.
170 lines
5.2 KiB
Go
170 lines
5.2 KiB
Go
package vm_test
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import (
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"bytes"
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"encoding/binary"
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"io/ioutil"
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"log"
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"math"
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"os"
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"path"
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"path/filepath"
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"runtime"
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"strings"
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"testing"
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"github.com/vsariola/sointu"
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"github.com/vsariola/sointu/vm"
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"gopkg.in/yaml.v2"
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)
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const errorThreshold = 1e-2
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func TestAllRegressionTests(t *testing.T) {
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_, myname, _, _ := runtime.Caller(0)
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files, err := filepath.Glob(path.Join(path.Dir(myname), "..", "tests", "*.yml"))
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if err != nil {
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t.Fatalf("cannot glob files in the test directory: %v", err)
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}
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for _, filename := range files {
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basename := filepath.Base(filename)
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testname := strings.TrimSuffix(basename, path.Ext(basename))
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t.Run(testname, func(t *testing.T) {
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if runtime.GOOS != "windows" && strings.Contains(testname, "sample") {
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t.Skip("Samples (gm.dls) available only on Windows")
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return
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}
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asmcode, err := ioutil.ReadFile(filename)
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if err != nil {
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t.Fatalf("cannot read the .asm file: %v", filename)
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}
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var song sointu.Song
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err = yaml.Unmarshal(asmcode, &song)
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if err != nil {
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t.Fatalf("could not parse the .yml file: %v", err)
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}
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buffer, err := sointu.Play(vm.GoSynther{}, song, nil)
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buffer = buffer[:song.Score.LengthInRows()*song.SamplesPerRow()] // extend to the nominal length always.
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if err != nil {
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t.Fatalf("Play failed: %v", err)
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}
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if os.Getenv("SOINTU_TEST_SAVE_OUTPUT") == "YES" {
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outputpath := path.Join(path.Dir(myname), "actual_output")
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if _, err := os.Stat(outputpath); os.IsNotExist(err) {
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os.Mkdir(outputpath, 0755)
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}
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outFileName := path.Join(path.Dir(myname), "actual_output", testname+".raw")
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outfile, err := os.OpenFile(outFileName, os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0755)
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defer outfile.Close()
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if err != nil {
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t.Fatalf("Creating file failed: %v", err)
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}
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var createdbuf bytes.Buffer
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err = binary.Write(&createdbuf, binary.LittleEndian, buffer)
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if err != nil {
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t.Fatalf("error converting buffer: %v", err)
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}
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_, err = outfile.Write(createdbuf.Bytes())
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if err != nil {
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log.Fatal(err)
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}
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}
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compareToRawFloat32(t, buffer, testname+".raw")
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})
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}
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}
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func TestStackUnderflow(t *testing.T) {
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patch := sointu.Patch{sointu.Instrument{NumVoices: 1, Units: []sointu.Unit{
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{Type: "pop", Parameters: map[string]int{}},
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}}}
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synth, err := vm.GoSynther{}.Synth(patch, 120)
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if err != nil {
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t.Fatalf("bridge compile error: %v", err)
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}
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buffer := make(sointu.AudioBuffer, 1)
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err = buffer.Fill(synth)
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if err == nil {
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t.Fatalf("rendering should have failed due to stack underflow")
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}
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}
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func TestStackBalancing(t *testing.T) {
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patch := sointu.Patch{
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sointu.Instrument{NumVoices: 1, Units: []sointu.Unit{
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{Type: "push", Parameters: map[string]int{}},
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}}}
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synth, err := vm.GoSynther{}.Synth(patch, 120)
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if err != nil {
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t.Fatalf("bridge compile error: %v", err)
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}
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buffer := make(sointu.AudioBuffer, 1)
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err = buffer.Fill(synth)
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if err == nil {
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t.Fatalf("rendering should have failed due to unbalanced stack push/pop")
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}
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}
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func compareToRawFloat32(t *testing.T, buffer sointu.AudioBuffer, rawname string) {
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_, filename, _, _ := runtime.Caller(0)
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expectedb, err := ioutil.ReadFile(path.Join(path.Dir(filename), "..", "tests", "expected_output", rawname))
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if err != nil {
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t.Fatalf("cannot read expected: %v", err)
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}
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expected := make(sointu.AudioBuffer, len(expectedb)/8)
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buf := bytes.NewReader(expectedb)
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err = binary.Read(buf, binary.LittleEndian, &expected)
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if err != nil {
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t.Fatalf("error converting expected buffer: %v", err)
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}
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if len(expected) != len(buffer) {
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t.Fatalf("buffer length mismatch, got %v, expected %v", len(buffer), len(expected))
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}
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firsterr := -1
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errs := 0
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for i, v := range expected[1 : len(expected)-1] {
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for j, s := range v {
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if math.IsNaN(float64(buffer[i][j])) || (math.Abs(float64(s-buffer[i][j])) > errorThreshold &&
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math.Abs(float64(s-buffer[i+1][j])) > errorThreshold && math.Abs(float64(s-buffer[i+2][j])) > errorThreshold) {
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errs++
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if firsterr == -1 {
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firsterr = i
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}
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if errs > 200 { // we are again quite liberal with rounding errors, as different platforms have minor differences in floating point rounding
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t.Fatalf("more than 200 errors bigger than %v detected, first at sample position %v", errorThreshold, firsterr)
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}
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}
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}
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}
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}
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func compareToRawInt16(t *testing.T, buffer []int16, rawname string) {
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_, filename, _, _ := runtime.Caller(0)
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expectedb, err := ioutil.ReadFile(path.Join(path.Dir(filename), "..", "tests", "expected_output", rawname))
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if err != nil {
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t.Fatalf("cannot read expected: %v", err)
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}
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expected := make([]int16, len(expectedb)/2)
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buf := bytes.NewReader(expectedb)
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err = binary.Read(buf, binary.LittleEndian, &expected)
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if err != nil {
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t.Fatalf("error converting expected buffer: %v", err)
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}
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if len(expected) != len(buffer) {
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t.Fatalf("buffer length mismatch, got %v, expected %v", len(buffer), len(expected))
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}
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for i, v := range expected {
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if math.IsNaN(float64(buffer[i])) || v != buffer[i] {
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t.Fatalf("error at sample position %v", i)
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}
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}
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}
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func convertToInt16Buffer(buffer []float32) []int16 {
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int16Buffer := make([]int16, len(buffer))
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for i, v := range buffer {
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int16Buffer[i] = int16(math.Round(math.Min(math.Max(float64(v), -1.0), 1.0) * 32767))
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}
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return int16Buffer
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}
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