By using the context created by the test, the goroutines produced in
http.Client is actually closed when cancelled and such, not leaked.
Signed-off-by: Josef Johansson <josef86@gmail.com>
* init TLS.Config when connecting to Redis with TLS
* don't overwrite TLS config if it exists
* add tests for Redis with TLS
* remove hardcoded certs
* add GenerateCert func
* use GenerateCert util func
* fix issue reported by go fmt
* limit return statements in GenerateCert
