Audio

lib/mic/chunk_test.go

@@ -0,0 +1,20 @@
+package mic
+
+import (
+	"bytes"
+	"testing"
+)
+
+func TestAppendChunkPCMCaps(t *testing.T) {
+	t.Parallel()
+	half := maxChunkPCM / 2
+	buf := appendChunkPCM(nil, bytes.Repeat([]byte{1}, half))
+	buf = appendChunkPCM(buf, bytes.Repeat([]byte{2}, half))
+	buf = appendChunkPCM(buf, bytes.Repeat([]byte{3}, half))
+	if len(buf) != maxChunkPCM {
+		t.Fatalf("len = %d, want %d", len(buf), maxChunkPCM)
+	}
+	if buf[0] != 2 {
+		t.Fatalf("first byte = %d, want 2 (oldest chunk dropped)", buf[0])
+	}
+}