diff --git a/opus_test.go b/opus_test.go
index 177dde8..7db698a 100644
--- a/opus_test.go
+++ b/opus_test.go
@@ -86,6 +86,8 @@ func TestCodecFloat32(t *testing.T) {
 	}
 	addSineFloat32(pcm, SAMPLE_RATE, G4)
 	err = enc.EncodeFloat32(pcm)
+	enc.Close()
+
 	if err != nil {
 		t.Fatalf("Couldn't encode data: %v", err)
 	}
@@ -95,11 +97,16 @@ func TestCodecFloat32(t *testing.T) {
 	}
 	// TODO: Uh-oh.. it looks like I forgot to put a data = data[:n] here, yet
 	// the test is not failing. Why?
-	n, err := dec.ReadFloat32(pcm)
-	if err != nil {
-		t.Fatalf("Couldn't decode data: %v", err)
+	var out []float32
+	buf := make([]float32, 120*SAMPLE_RATE)
+	for {
+		n, err := dec.ReadFloat32(pcm)
+		if err != nil {
+			break
+		}
+		out = append(out, buf[:n]...)
 	}
-	if len(pcm) != n {
-		t.Fatalf("Length mismatch: %d samples in, %d out", len(pcm), n)
+	if len(out) != len(pcm) {
+		t.Fatalf("Length mismatch: %d samples in, %d out", len(out), len(pcm))
 	}
 }