Media: components 341-360

mic_level_meter_test.go

@@ -0,0 +1,62 @@
+package mujica
+
+import (
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/egoist/mygo/ui"
+)
+
+func TestMicLevelMeterPeakHold(t *testing.T) {
+	level := float32(1)
+	var e *ui.Element
+	tt := ui.NewTester(func(c *ui.Context) {
+		Use(c, Settings{})
+		e = MicLevelMeter(c, level, MicLevelMeterOptions{Hold: 40 * time.Millisecond})
+	}, 400, 100)
+	if !tt.HasText("0 dB") {
+		t.Fatalf("texts %v", tt.Texts())
+	}
+	level = 0.1
+	tt.Frame()
+	if !tt.HasText("-20 dB") {
+		t.Fatalf("level readout %v", tt.Texts())
+	}
+	if r, ok := tt.Find("Microphone level"); !ok || r.W == 0 {
+		t.Fatal("meter not named")
+	}
+	if !strings.Contains(micTestDescription(e), "peak 0 dB") {
+		t.Fatal("peak not held")
+	}
+	time.Sleep(60 * time.Millisecond)
+	tt.Frame()
+	if !strings.Contains(micTestDescription(e), "peak -20 dB") {
+		t.Fatal("peak did not fall after the hold")
+	}
+}
+
+// micTestDescription rebuilds the meter's spoken value from its state.
+func micTestDescription(e *ui.Element) string {
+	pk := *ui.Local(e, micPeak{}, func() micPeak { return micPeak{} })
+	return "peak " + micDB(pk.level)
+}
+
+func TestMicLevelMeterDB(t *testing.T) {
+	for v, want := range map[float32]string{0: "-∞ dB", 1: "0 dB", 0.5: "-6 dB"} {
+		if got := micDB(v); got != want {
+			t.Errorf("%v: %s, want %s", v, got, want)
+		}
+	}
+	mediaPanics(t, "over full scale", func(c *ui.Context) { MicLevelMeter(c, 1.2, MicLevelMeterOptions{}) })
+}
+
+func TestMicLevelMeterSnapshot(t *testing.T) {
+	snapshot(t, "mic_level_meter", 360, 150, func(c *ui.Context) {
+		ui.Column(c).Padding(20).Gap(8).Children(func() {
+			MicLevelMeter(c, 0.35, MicLevelMeterOptions{})
+			MicLevelMeter(c, 0.8, MicLevelMeterOptions{})
+			MicLevelMeter(c, 0.97, MicLevelMeterOptions{})
+		})
+	})
+}