Blinking test

[okonet]

During my work on #141 I've encountered the "blinking" test:

FAIL  test\runScript-mock-findBin.spec.js
  ● runScript with absolute paths › can pass `gitDir` as `cwd` to `execa()` when git is called via absolute path
    TypeError: Cannot read property 'bin' of undefined
      
      at Object.task (src/runScript.js:30:106)
      at _callee$ (test/runScript-mock-findBin.spec.js:50:34)
      at tryCatch (node_modules/regenerator-runtime/runtime.js:65:40)
      at Generator.invoke [as _invoke] (node_modules/regenerator-runtime/runtime.js:299:22)
      at Generator.prototype.(anonymous function) [as next] (node_modules/regenerator-runtime/runtime.js:117:21)
      at step (test/runScript-mock-findBin.spec.js:23:641)
      at test/runScript-mock-findBin.spec.js:23:871
          at Promise (<anonymous>)
      at Object.<anonymous> (test/runScript-mock-findBin.spec.js:23:552)

It would be great to make it run deterministic or we should disable it.

[luftywiranda13]

I'm digging now, currently have no idea about how we should deal with this 😆

[sudo-suhas]

This has something to do with the order in which the tests are run:

$ jest --coverage
 PASS  test\runAll.spec.js
 FAIL  test\runScript-mock-findBin.spec.js
  ● runScript with absolute paths › can pass `gitDir` as `cwd` to `execa()` when git is called via absolute path

    TypeError: Cannot read property 'bin' of undefined
      at Object.task (src/runScript.js:26:105)
      at _callee$ (test/runScript-mock-findBin.spec.js:40:34)
      at tryCatch (node_modules/regenerator-runtime/runtime.js:65:40)
      at Generator.invoke [as _invoke] (node_modules/regenerator-runtime/runtime.js:299:22)
      at Generator.prototype.(anonymous function) [as next] (node_modules/regenerator-runtime/runtime.js:117:21)
      at step (test/runScript-mock-findBin.spec.js:21:470)
      at test/runScript-mock-findBin.spec.js:21:700
          at Promise (<anonymous>)
      at Object.<anonymous> (test/runScript-mock-findBin.spec.js:21:381)

$ jest --coverage
 PASS  test\runScript-mock-findBin.spec.js
 PASS  test\runAll.spec.js

$ jest --coverage
 PASS  test\runAll.spec.js
 FAIL  test\runScript-mock-findBin.spec.js
  ● runScript with absolute paths › can pass `gitDir` as `cwd` to `execa()` when git is called via absolute path
...

If runScript-mock-findBin.spec.js runs after test\runAll.spec.js, the test fails.