Require talk key for tone test transmission

tonetest_test.go

@@ -7,6 +7,17 @@ import (
 
 // Regression: tone transmission was started before opening its output file,
 // so a creation error left audio transmission running without cleanup.
+// Regression: tone test transmitted immediately, preventing the configured
+// talk key from controlling it.
+func TestToneTestRequiresAutoTransmit(t *testing.T) {
+	if (&Barnard{ToneTest: true}).toneTestAutoTransmit() {
+		t.Fatal("tone test started without auto-transmit")
+	}
+	if !(&Barnard{ToneTest: true, AutoTransmit: true}).toneTestAutoTransmit() {
+		t.Fatal("tone test did not auto-transmit")
+	}
+}
+
 func TestNewAudioFileSaverReportsUnavailableOutputPath(t *testing.T) {
 	path := filepath.Join(t.TempDir(), "missing", "tone.pcm")
 	if saver, err := NewAudioFileSaver(path); err == nil || saver != nil {