Added HV Socket tests (#240)

* Added HV Socket tests

Added tests for core Hyper-V socket functionality, including testing
CloseRead and CloseWrite, as well as checking addresses are appropriate
and timeouts work.

Added fuzzing test to check for edge case read/write issues.

Signed-off-by: Hamza El-Saawy <hamzaelsaawy@microsoft.com>

* pr: asserts, naming, fatal in test

Signed-off-by: Hamza El-Saawy <hamzaelsaawy@microsoft.com>

Signed-off-by: Hamza El-Saawy <hamzaelsaawy@microsoft.com>

.gitignore

@@ -2,6 +2,9 @@
 
 *.exe
 
+# testing
+testdata
+
 # go workspaces
 go.work
 go.work.sum

go.mod

@@ -6,3 +6,5 @@ require (
 	github.com/sirupsen/logrus v1.7.0
 	golang.org/x/sys v0.0.0-20220422013727-9388b58f7150
 )
+
+require golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4 // indirect

go.sum

@@ -6,6 +6,8 @@ github.com/sirupsen/logrus v1.7.0 h1:ShrD1U9pZB12TX0cVy0DtePoCH97K8EtX+mg7ZARUtM
 github.com/sirupsen/logrus v1.7.0/go.mod h1:yWOB1SBYBC5VeMP7gHvWumXLIWorT60ONWic61uBYv0=
 github.com/stretchr/testify v1.2.2 h1:bSDNvY7ZPG5RlJ8otE/7V6gMiyenm9RtJ7IUVIAoJ1w=
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
+golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4 h1:uVc8UZUe6tr40fFVnUP5Oj+veunVezqYl9z7DYw9xzw=
+golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20191026070338-33540a1f6037/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20220422013727-9388b58f7150 h1:xHms4gcpe1YE7A3yIllJXP16CMAGuqwO2lX1mTyyRRc=
 golang.org/x/sys v0.0.0-20220422013727-9388b58f7150/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=