wait-on is a cross-platform command line utility and Node.js API which will wait for files, ports, sockets, and http(s) resources to become available
Simple pass-through node.js stream (RW) which accumulates the length of the stream. (streams2)
Simple stream sink which accumulates or collects the data from a stream. Pipe your stream into this to get all the data as buffer, string, or raw array. (streams2)
Light wrapper around chaijs which automatically sets chai.Assertion.includeStack = true