cneicy
ceddfd3d6b
Sync production source including routing, billing, Astra detection and public uptime. Update custom build instructions and license packaging.
55 lines
1.8 KiB
Go
55 lines
1.8 KiB
Go
package common
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import (
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"bytes"
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"context"
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"encoding/binary"
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"strings"
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"testing"
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)
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// minimalWAV builds a valid 16-bit PCM mono WAV with the given number of sample frames.
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func minimalWAV(sampleRate uint32, frames int) []byte {
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const numChannels = 1
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const bitsPerSample = 16
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dataSize := frames * numChannels * (bitsPerSample / 8)
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buf := &bytes.Buffer{}
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buf.WriteString("RIFF")
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binary.Write(buf, binary.LittleEndian, uint32(36+dataSize))
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buf.WriteString("WAVE")
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buf.WriteString("fmt ")
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binary.Write(buf, binary.LittleEndian, uint32(16))
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binary.Write(buf, binary.LittleEndian, uint16(1)) // PCM
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binary.Write(buf, binary.LittleEndian, uint16(numChannels))
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binary.Write(buf, binary.LittleEndian, sampleRate)
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byteRate := sampleRate * numChannels * (bitsPerSample / 8)
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binary.Write(buf, binary.LittleEndian, byteRate)
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binary.Write(buf, binary.LittleEndian, uint16(numChannels*(bitsPerSample/8)))
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binary.Write(buf, binary.LittleEndian, uint16(bitsPerSample))
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buf.WriteString("data")
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binary.Write(buf, binary.LittleEndian, uint32(dataSize))
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buf.Write(make([]byte, dataSize))
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return buf.Bytes()
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}
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func TestGetAudioDurationCaseInsensitiveExt(t *testing.T) {
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wav := minimalWAV(8000, 8000) // 1 second
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for _, ext := range []string{".wav", ".WAV", ".Wav"} {
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d, err := GetAudioDuration(context.Background(), bytes.NewReader(wav), ext)
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if err != nil {
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t.Fatalf("ext %q: unexpected error: %v", ext, err)
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}
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if d < 0.99 || d > 1.01 {
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t.Fatalf("ext %q: expected ~1s duration, got %v", ext, d)
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}
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}
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}
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func TestGetAudioDurationUppercaseNotUnsupported(t *testing.T) {
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_, err := GetAudioDuration(context.Background(), bytes.NewReader([]byte("not audio")), ".MP3")
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if err != nil && strings.Contains(err.Error(), "unsupported audio format") {
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t.Fatalf("uppercase extension rejected as unsupported: %v", err)
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}
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}
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