"12.2.7 UNIMPLEMENTED"
"12.2.8 UNIMPLEMENTED"
"12.2.9 UNIMPLEMENTED"
"12.3.1 UNIMPLEMENTED"
"12.3.10 UNIMPLEMENTED"
"12.3.11 UNIMPLEMENTED"
"12.3.12 UNIMPLEMENTED"
"12.3.13 UNIMPLEMENTED"
"12.3.14 UNIMPLEMENTED"
"12.3.15 UNIMPLEMENTED"
"12.3.16 UNIMPLEMENTED"
"12.3.17 UNIMPLEMENTED"
"12.3.18 UNIMPLEMENTED"
"12.3.2 UNIMPLEMENTED"
"12.3.3 UNIMPLEMENTED"
"12.3.4 UNIMPLEMENTED"
"12.3.5 UNIMPLEMENTED"
"12.3.6 UNIMPLEMENTED"

    testRotate(new byte[] {1, 2, 3}, -4, new byte[] {2, 3, 1});
    testRotate(new byte[] {1, 2, 3}, -3, new byte[] {1, 2, 3});
    testRotate(new byte[] {1, 2, 3}, -2, new byte[] {3, 1, 2});
    testRotate(new byte[] {1, 2, 3}, -1, new byte[] {2, 3, 1});
    testRotate(new byte[] {1, 2, 3}, 0, new byte[] {1, 2, 3});
    testRotate(new byte[] {1, 2, 3}, 1, new byte[] {3, 1, 2});

	}
	if got, want := NewReaderSize(nil, 1234).Size(), 1234; got != want {
		t.Errorf("NewReaderSize's Reader.Size = %d; want %d", got, want)
	}
}

func TestWriterSize(t *testing.T) {
	if got, want := NewWriter(nil).Size(), DefaultBufSize; got != want {
		t.Errorf("NewWriter's Writer.Size = %d; want %d", got, want)
	}
	if got, want := NewWriterSize(nil, 1234).Size(), 1234; got != want {

    testRotate(new byte[] {1, 2, 3}, -4, new byte[] {2, 3, 1});
    testRotate(new byte[] {1, 2, 3}, -3, new byte[] {1, 2, 3});
    testRotate(new byte[] {1, 2, 3}, -2, new byte[] {3, 1, 2});
    testRotate(new byte[] {1, 2, 3}, -1, new byte[] {2, 3, 1});
    testRotate(new byte[] {1, 2, 3}, 0, new byte[] {1, 2, 3});
    testRotate(new byte[] {1, 2, 3}, 1, new byte[] {3, 1, 2});

    testRotate(new char[] {'1', '2', '3'}, 0, new char[] {'1', '2', '3'});
    testRotate(new char[] {'1', '2', '3'}, 1, new char[] {'3', '1', '2'});
    testRotate(new char[] {'1', '2', '3'}, 2, new char[] {'2', '3', '1'});
    testRotate(new char[] {'1', '2', '3'}, 3, new char[] {'1', '2', '3'});
    testRotate(new char[] {'1', '2', '3'}, 4, new char[] {'3', '1', '2'});
    testRotate(new char[] {'1', '2', '3'}, 5, new char[] {'2', '3', '1'});

    testRotate(new float[] {1, 2, 3}, -4, new float[] {2, 3, 1});
    testRotate(new float[] {1, 2, 3}, -3, new float[] {1, 2, 3});
    testRotate(new float[] {1, 2, 3}, -2, new float[] {3, 1, 2});
    testRotate(new float[] {1, 2, 3}, -1, new float[] {2, 3, 1});
    testRotate(new float[] {1, 2, 3}, 0, new float[] {1, 2, 3});
    testRotate(new float[] {1, 2, 3}, 1, new float[] {3, 1, 2});

    testRotate(new int[] {1, 2, 3}, -4, new int[] {2, 3, 1});
    testRotate(new int[] {1, 2, 3}, -3, new int[] {1, 2, 3});
    testRotate(new int[] {1, 2, 3}, -2, new int[] {3, 1, 2});
    testRotate(new int[] {1, 2, 3}, -1, new int[] {2, 3, 1});
    testRotate(new int[] {1, 2, 3}, 0, new int[] {1, 2, 3});
    testRotate(new int[] {1, 2, 3}, 1, new int[] {3, 1, 2});
    testRotate(new int[] {1, 2, 3}, 2, new int[] {2, 3, 1});

    testRotate(new double[] {1, 2, 3}, 1, new double[] {3, 1, 2});
    testRotate(new double[] {1, 2, 3}, 2, new double[] {2, 3, 1});
    testRotate(new double[] {1, 2, 3}, 3, new double[] {1, 2, 3});
    testRotate(new double[] {1, 2, 3}, 4, new double[] {3, 1, 2});
    testRotate(new double[] {1, 2, 3}, 5, new double[] {2, 3, 1});

    testRotate(new double[] {1, 2, 3, 4}, -9, new double[] {2, 3, 4, 1});

    testRotate(new float[] {1, 2, 3}, -4, new float[] {2, 3, 1});
    testRotate(new float[] {1, 2, 3}, -3, new float[] {1, 2, 3});
    testRotate(new float[] {1, 2, 3}, -2, new float[] {3, 1, 2});
    testRotate(new float[] {1, 2, 3}, -1, new float[] {2, 3, 1});
    testRotate(new float[] {1, 2, 3}, 0, new float[] {1, 2, 3});
    testRotate(new float[] {1, 2, 3}, 1, new float[] {3, 1, 2});

    testRotate(new long[] {1, 2, 3}, -4, new long[] {2, 3, 1});
    testRotate(new long[] {1, 2, 3}, -3, new long[] {1, 2, 3});
    testRotate(new long[] {1, 2, 3}, -2, new long[] {3, 1, 2});
    testRotate(new long[] {1, 2, 3}, -1, new long[] {2, 3, 1});
    testRotate(new long[] {1, 2, 3}, 0, new long[] {1, 2, 3});
    testRotate(new long[] {1, 2, 3}, 1, new long[] {3, 1, 2});