LWP::UserAgent suitable for simulating and testing network calls.

It overrides a few key low-level methods of LWP::UserAgent that are
concerned with actually sending your request over the network,
allowing an interception of that request and simulating a particular
response. This greatly facilitates testing of client networking
code where the server follows a known protocol.

WWW: https://metacpan.org/release/Test-LWP-UserAgent