[TEST] Error: Starting inspector on [...] failed: address already in use

[ghost]

During work on #87 and #110, the following error came up:

Problem

  1) EthPM integration "before each" hook: Create a fake EthPM host and memory registry for "successfully installs single dependency from EthPM":
base.js:225
     Error: Starting inspector on 127.0.0.1:39487 failed: address already in use
      at Object.done (P:\sand\truffle\dependencies\truffle-core\node_modules\ipfsd-ctl\src\exec.js:23:27)
      at Stream.listeners.done.once (P:\sand\truffle\dependencies\truffle-core\node_modules\ipfsd-ctl\src\exec.js:45:18)
      at Stream.f (P:\sand\truffle\dependencies\truffle-core\node_modules\once\once.js:25:25)
      at emitOne (events.js:116:13)
      at Stream.emit (events.js:211:7)
      at Socket.reemit (P:\sand\truffle\dependencies\truffle-core\node_modules\duplexer\index.js:70:25)
      at emitOne (events.js:121:20)
      at Socket.emit (events.js:211:7)
      at Pipe._handle.close [as _onclose] (net.js:554:12)

This happens because the mocha-test launches another process (ipfs daemon), and the node.js debugger is loosing it (can't handle this by default). This was tested with VSCode and Webstorm on win10.

Workaround

This is a know issue, with several workarounds (and possibly even a solutions) written over the years on the web.

The most official workaround/solution should be selected, documented and applied.

[ghost]

@cgewecke , closing this for... housekeeping reasons!!!