Fix UnexpectedFrameError flaky tests (#31707)

JamesNK · web-flow · commit eb72f191b768 · 2021-04-13T12:11:33.000+12:00
diff --git a/src/Servers/Kestrel/Core/src/Internal/Http3/Http3Connection.cs b/src/Servers/Kestrel/Core/src/Internal/Http3/Http3Connection.cs
@@ -178,12 +178,13 @@ public void Abort(ConnectionAbortedException ex, Http3ErrorCode errorCode)
 
             if (!previousState)
             {
+                _errorCodeFeature.Error = (long)errorCode;
+
                 if (TryClose())
                 {
                     SendGoAway(_highestOpenedStreamId).Preserve();
                 }
 
-                _errorCodeFeature.Error = (long)errorCode;
                 _multiplexedContext.Abort(ex);
             }
         }

Original file line number	Diff line number	Diff line change
`@@ -178,12 +178,13 @@ public void Abort(ConnectionAbortedException ex, Http3ErrorCode errorCode)`
`178`	`178`
`179`	`179`	`if (!previousState)`
`180`	`180`	`{`
	`181`	`+ _errorCodeFeature.Error = (long)errorCode;`
	`182`	`+`
`181`	`183`	`if (TryClose())`
`182`	`184`	`{`
`183`	`185`	`SendGoAway(_highestOpenedStreamId).Preserve();`
`184`	`186`	`}`
`185`	`187`
`186`		`- _errorCodeFeature.Error = (long)errorCode;`
`187`	`188`	`_multiplexedContext.Abort(ex);`
`188`	`189`	`}`
`189`	`190`	`}`