Babel-tap is not supporting tap command line options --cov

[paladugu18]

When i use the code coverage option with babel-tap am seeing this error:

babel-tap test.js --cov
module.js:491
    throw err;
    ^

Error: Cannot find module '/Users/../.node-spawn-wrap-15411-b2267dadd6af/babel-node.js'
    at Function.Module._resolveFilename (module.js:489:15)
    at Function.Module._load (module.js:439:25)
    at Function.Module.runMain (module.js:609:10)
    at Object.<anonymous> (/usr/local/lib/node_modules/babel-tap/node_modules/babel-cli/lib/_babel-node.js:154:22)
    at Module._compile (module.js:573:30)
    at Module.replacementCompile (/usr/local/lib/node_modules/babel-tap/node_modules/nyc/node_modules/append-transform/index.js:58:13)
    at module.exports (/usr/local/lib/node_modules/babel-tap/node_modules/nyc/node_modules/default-require-extensions/js.js:8:9)
    at Object.<anonymous> (/usr/local/lib/node_modules/babel-tap/node_modules/nyc/node_modules/append-transform/index.js:62:4)
    at Module.load (module.js:507:32)
    at tryModuleLoad (module.js:470:12)
test.js ............................................... 0/1
  not ok test.js
    timeout: 240000
    file: test.js
    command: /usr/local/lib/node_modules/babel-tap/node_modules/babel-cli/bin/babel-node.js
    args:
      - test.js
    cwd: /Users/../Documents/code-katas/babel-tap
    exitCode: 1

total ................................................. 0/1


  0 passing (1s)
  1 failing

----------|----------|----------|----------|----------|----------------|
File      |  % Stmts | % Branch |  % Funcs |  % Lines |Uncovered Lines |
----------|----------|----------|----------|----------|----------------|
All files |  Unknown |  Unknown |  Unknown |  Unknown |                |
----------|----------|----------|----------|----------|----------------|

Looks like node-tap/bin/run.js is spawning child process when we run with --cov option and for some reason, it is unable to find the spawned processes.

[andrei-cocorean]

I had the same problem and fixed it by running:
tap --nyc-arg='--require=babel-register' --cov test.js