feat: sync deployed v1.0.0-rc.38-custom.42

Sync production source including routing, billing, Astra detection and public uptime. Update custom build instructions and license packaging.

common/audio_case_test.go

@@ -0,0 +1,54 @@
+package common
+
+import (
+	"bytes"
+	"context"
+	"encoding/binary"
+	"strings"
+	"testing"
+)
+
+// minimalWAV builds a valid 16-bit PCM mono WAV with the given number of sample frames.
+func minimalWAV(sampleRate uint32, frames int) []byte {
+	const numChannels = 1
+	const bitsPerSample = 16
+	dataSize := frames * numChannels * (bitsPerSample / 8)
+	buf := &bytes.Buffer{}
+	buf.WriteString("RIFF")
+	binary.Write(buf, binary.LittleEndian, uint32(36+dataSize))
+	buf.WriteString("WAVE")
+	buf.WriteString("fmt ")
+	binary.Write(buf, binary.LittleEndian, uint32(16))
+	binary.Write(buf, binary.LittleEndian, uint16(1)) // PCM
+	binary.Write(buf, binary.LittleEndian, uint16(numChannels))
+	binary.Write(buf, binary.LittleEndian, sampleRate)
+	byteRate := sampleRate * numChannels * (bitsPerSample / 8)
+	binary.Write(buf, binary.LittleEndian, byteRate)
+	binary.Write(buf, binary.LittleEndian, uint16(numChannels*(bitsPerSample/8)))
+	binary.Write(buf, binary.LittleEndian, uint16(bitsPerSample))
+	buf.WriteString("data")
+	binary.Write(buf, binary.LittleEndian, uint32(dataSize))
+	buf.Write(make([]byte, dataSize))
+	return buf.Bytes()
+}
+
+func TestGetAudioDurationCaseInsensitiveExt(t *testing.T) {
+	wav := minimalWAV(8000, 8000) // 1 second
+
+	for _, ext := range []string{".wav", ".WAV", ".Wav"} {
+		d, err := GetAudioDuration(context.Background(), bytes.NewReader(wav), ext)
+		if err != nil {
+			t.Fatalf("ext %q: unexpected error: %v", ext, err)
+		}
+		if d < 0.99 || d > 1.01 {
+			t.Fatalf("ext %q: expected ~1s duration, got %v", ext, d)
+		}
+	}
+}
+
+func TestGetAudioDurationUppercaseNotUnsupported(t *testing.T) {
+	_, err := GetAudioDuration(context.Background(), bytes.NewReader([]byte("not audio")), ".MP3")
+	if err != nil && strings.Contains(err.Error(), "unsupported audio format") {
+		t.Fatalf("uppercase extension rejected as unsupported: %v", err)
+	}
+}