DialContextWithRetry creates a new DialContextFunc -- which has the same signature as the net.Conn.DialContext function -- that calls coreDialer.DialContext multiple times with an exponential backoff.

MinTotalBackoffDuration returns the minimum duration that backoff would wait, including all steps, not including any jitter.

NewNetDialer creates a new (net).Dialer with the given connection timeout and keep alive duration.

StartTestServer creates and starts an *httptest.Server in the background, then parses its URL and returns both values.

DialContextFunc is a function that matches the (net).Dialer.DialContext functions's signature.