chore(poll): return NotModifiedTimeoutErr on 304

poll_single_test.go

@@ -46,3 +46,24 @@ func TestClient_PollItem(t *testing.T) {
 	require.NotEmpty(t, ct)
 	require.NoError(t, <-updateErrCh)
 }
+
+func TestClient_PollItem_Timeout(t *testing.T) {
+	if testing.Short() {
+		t.Skip("Skipping in short mode: 1 sec minimum to trigger timeout")
+		return
+	}
+	t.Parallel()
+
+	f, ctx := newFixture(t)
+
+	pk := randomPk()
+	sk := randomSk()
+
+	err := f.cli.InsertItem(ctx, f.bucket, pk, sk, "", []byte("hello1"))
+	require.NoError(t, err)
+
+	_, ct, err := f.cli.ReadItemSingle(ctx, f.bucket, pk, sk)
+	item, ct, err := f.cli.PollItem(ctx, f.bucket, pk, sk, ct, 1*time.Second)
+	require.ErrorIs(t, err, k2v.NotModifiedTimeoutErr)
+	require.Empty(t, item)
+}