07:12:45 zeus:((v2.6.0))~/dev/h2spec$ ./h2spec -vkt -p 4443 -P /cache/1024 http2/6.9.1/3
Hypertext Transfer Protocol Version 2 (HTTP/2)
  6. Frame Definitions
    6.9. WINDOW_UPDATE
      6.9.1. The Flow-Control Window
             [send] SETTINGS Frame (length:6, flags:0x00, stream_id:0)
             [recv] SETTINGS Frame (length:18, flags:0x00, stream_id:0)
             [send] SETTINGS Frame (length:0, flags:0x01, stream_id:0)
             [recv] SETTINGS Frame (length:0, flags:0x01, stream_id:0)
             [send] HEADERS Frame (length:24, flags:0x04, stream_id:1)
             [send] WINDOW_UPDATE Frame (length:4, flags:0x00, stream_id:1)
             [send] WINDOW_UPDATE Frame (length:4, flags:0x00, stream_id:1)
             [recv] HEADERS Frame (length:148, flags:0x04, stream_id:1)
             [recv] DATA Frame (length:1024, flags:0x01, stream_id:1)
             [recv] Timeout
        using source address 127.0.0.1:53226
        × 3: Sends multiple WINDOW_UPDATE frames increasing the flow control window to above 2^31-1 on a stream
          -> The endpoint MUST sends a RST_STREAM frame with a FLOW_CONTROL_ERROR code.
             Expected: RST_STREAM Frame (Error Code: FLOW_CONTROL_ERROR)
               Actual: DATA Frame (length:1024, flags:0x01, stream_id:1)

Failures:

Hypertext Transfer Protocol Version 2 (HTTP/2)
  6. Frame Definitions
    6.9. WINDOW_UPDATE
      6.9.1. The Flow-Control Window
        using source address 127.0.0.1:53226
        × 3: Sends multiple WINDOW_UPDATE frames increasing the flow control window to above 2^31-1 on a stream
          -> The endpoint MUST sends a RST_STREAM frame with a FLOW_CONTROL_ERROR code.
             Expected: RST_STREAM Frame (Error Code: FLOW_CONTROL_ERROR)
               Actual: DATA Frame (length:1024, flags:0x01, stream_id:1)

Finished in 2.0084 seconds
1 tests, 0 passed, 0 skipped, 1 failed

07:11:31 zeus:(fix_6_9_1_3)~/dev/h2spec$ ./h2spec -vkt -p 4443 -P /cache/1024 http2/6.9.1/3
Hypertext Transfer Protocol Version 2 (HTTP/2)
  6. Frame Definitions
    6.9. WINDOW_UPDATE
      6.9.1. The Flow-Control Window
             source address: 127.0.0.1:45728
             [send] SETTINGS Frame (length:6, flags:0x00, stream_id:0)
             [recv] SETTINGS Frame (length:18, flags:0x00, stream_id:0)
             [send] SETTINGS Frame (length:0, flags:0x01, stream_id:0)
             [recv] SETTINGS Frame (length:0, flags:0x01, stream_id:0)
             [send] HEADERS Frame (length:24, flags:0x05, stream_id:1)
             [send] WINDOW_UPDATE Frame (length:4, flags:0x00, stream_id:1)
             [send] WINDOW_UPDATE Frame (length:4, flags:0x00, stream_id:1)
             [send] DATA Frame (length:4, flags:0x01, stream_id:1)
             [recv] RST_STREAM Frame (length:4, flags:0x00, stream_id:1)
        ✔ 3: Sends multiple WINDOW_UPDATE frames increasing the flow control window to above 2^31-1 on a stream

Finished in 0.0053 seconds
1 tests, 1 passed, 0 skipped, 0 failed