H2 manual write triggers the stream complete test

[TingDaoK]

Issue #, if available:

• While I am binding out the function, I found this behavior confusing.
• The data write failed to be read from, but it will fail the data write with AWS_ERROR_HTTP_STREAM_HAS_COMPLETED
• But when I dig into the code, it does make sense, the write will fail with stream completed, and the stream will complete with the real error.
• Add one test to display this behavior.

Description of changes:

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 79.49%. Comparing base (e526ac3) to head (6e9690d).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #510   +/-   ##
=======================================
  Coverage   79.48%   79.49%           
=======================================
  Files          27       27           
  Lines       11686    11684    -2     
=======================================
- Hits         9289     9288    -1     
+ Misses       2397     2396    -1     

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[graebm]

The docs say that it should work the way you assumed, that the stream-write-complete error-code should have been AWS_IO_STREAM_READ_FAILED, and not AWS_ERROR_HTTP_STREAM_HAS_COMPLETED. Is this easy to fix?

aws-c-http/include/aws/http/request_response.h

Lines 379 to 385 in e3a9cab

	* @param error_code If error_code is AWS_ERROR_SUCCESS (0), the data was successfully sent.
	* Any other error_code indicates that the HTTP-stream is in the process of terminating.
	* If the error_code is AWS_ERROR_HTTP_STREAM_HAS_COMPLETED,
	* the stream's termination has nothing to do with this write operation.
	* Any other non-zero error code indicates a problem with this particular write
	* operation's data.
	* @param user_data User data for this write operation.