}

  @Test
  public void forGraph_depthFirstPostOrder_tree() throws Exception {
    Traverser<Character> traverser = Traverser.forGraph(TREE);

    assertEqualCharNodes(traverser.depthFirstPostOrder('h'), "abcdefgh");
    assertEqualCharNodes(traverser.depthFirstPostOrder('d'), "abcd");
    assertEqualCharNodes(traverser.depthFirstPostOrder('a'), "a");
  }

  @Test

    //     the smaller of these blocks with the far end of the other one. That leaves us with a
    //     smaller version of the same problem.
    //     Say we are rotating abcdefgh by 5. We start with abcde|fgh. The smaller block is [fgh]:
    //     [abc]de|[fgh] -> [fgh]de|[abc]. Now [fgh] is in the right place, but we need to swap [de]

        }
      },
    )
  }

  @Test fun goAwayWithDebugDataRoundTrip() {
    val expectedError = ErrorCode.PROTOCOL_ERROR
    val expectedData: ByteString = "abcdefgh".encodeUtf8()

    // Compose the expected GOAWAY frame without debug data.
    writeMedium(frame, 8 + expectedData.size)
    frame.writeByte(TYPE_GOAWAY)
    frame.writeByte(FLAG_NONE)