feat: added full support in USB (local) & ethernet (local or remote) of audio for Icom

internal/audio/codec_test.go

@@ -0,0 +1,37 @@
+package audio
+
+import "testing"
+
+func TestPCM16CodecRoundTrip(t *testing.T) {
+	c := NewPCM16Codec()
+	in := []byte{0x01, 0x02, 0x03, 0x04, 0xff, 0x7f}
+	enc, err := c.Encode(in)
+	if err != nil {
+		t.Fatalf("encode: %v", err)
+	}
+	dec, err := c.Decode(enc)
+	if err != nil {
+		t.Fatalf("decode: %v", err)
+	}
+	if string(dec) != string(in) {
+		t.Fatalf("round-trip mismatch: got % X want % X", dec, in)
+	}
+}
+
+func TestPCM16CodecTrimsOddByte(t *testing.T) {
+	c := NewPCM16Codec()
+	dec, err := c.Decode([]byte{0x10, 0x20, 0x30}) // 3 bytes = 1 sample + stray
+	if err != nil {
+		t.Fatalf("decode: %v", err)
+	}
+	if len(dec) != 2 {
+		t.Fatalf("expected the stray byte trimmed to 2, got %d", len(dec))
+	}
+}
+
+func TestPCM16CodecRejectsSingleByte(t *testing.T) {
+	c := NewPCM16Codec()
+	if _, err := c.Decode([]byte{0x10}); err == nil {
+		t.Fatalf("expected an error for a sub-sample payload")
+	}
+}