diff --git a/ui_settings_test.go b/ui_settings_test.go
new file mode 100644
index 0000000..aa66892
--- /dev/null
+++ b/ui_settings_test.go
@@ -0,0 +1,71 @@
+package main
+
+import (
+	"path/filepath"
+	"strings"
+	"testing"
+
+	"git.stormux.org/storm/barnard/config"
+	"git.stormux.org/storm/barnard/noise"
+	"git.stormux.org/storm/barnard/uiterm"
+)
+
+func TestOutputScrollScopeLeavesInputHomeAndEndAlone(t *testing.T) {
+	if outputScrollAllowed(uiViewInput) {
+		t.Fatal("message input unexpectedly allowed global chat scrolling")
+	}
+	for _, view := range []string{uiViewTree, uiViewAdmin} {
+		if !outputScrollAllowed(view) {
+			t.Errorf("%s unexpectedly disabled chat scrolling", view)
+		}
+	}
+}
+
+func TestAudioSettingsExposeCurrentValuesAndPersistMicChanges(t *testing.T) {
+	configPath := filepath.Join(t.TempDir(), "barnard.toml")
+	userConfig := config.NewConfig(&configPath)
+	b := &Barnard{UserConfig: userConfig, NoiseSuppressor: noise.NewSuppressor()}
+
+	items := b.audioSettingsItems()
+	labels := make([]string, 0, len(items))
+	for _, item := range items {
+		labels = append(labels, item.String())
+	}
+	joined := strings.Join(labels, "\n")
+	for _, wanted := range []string{"Automatic gain control: on", "Noise suppression: off", "Microphone level: 100 percent"} {
+		if !strings.Contains(joined, wanted) {
+			t.Errorf("settings did not include %q:\n%s", wanted, joined)
+		}
+	}
+
+	items[0].(adminItem).action()
+	items[1].(adminItem).action()
+	reloaded := config.NewConfig(&configPath)
+	if reloaded.GetAGCEnabled() {
+		t.Fatal("settings action did not persist disabled automatic gain control")
+	}
+	if !reloaded.GetNoiseSuppressionEnabled() {
+		t.Fatal("settings action did not persist enabled noise suppression")
+	}
+
+	if got := b.adjustMicVolume(-0.1); got < 0.899 || got > 0.901 {
+		t.Fatalf("adjusted microphone level = %v, want 0.9", got)
+	}
+	if got := config.NewConfig(&configPath).GetMicVolume(); got < 0.899 || got > 0.901 {
+		t.Fatalf("persisted microphone level = %v, want 0.9", got)
+	}
+	if got := b.setMicVolume(2); got != 1 {
+		t.Fatalf("clamped microphone level = %v, want 1", got)
+	}
+}
+
+func TestKeyboardHelpUsesConfiguredBindings(t *testing.T) {
+	f2 := uiterm.KeyF2
+	b := &Barnard{Hotkeys: &config.Hotkeys{
+		HelpMenu: &f2,
+	}}
+	items := b.keyboardHelpItems()
+	if len(items) == 0 || !strings.Contains(items[0].(adminItem).children[0].String(), "F2") {
+		t.Fatal("keyboard help did not use the configured help binding")
+	}
+}