Executing .exe File Using Node Runs Only Once In Protractor

I write some tests using jasmine and protractor i want in the @beforeeach to execute .exe file using require('child_process') and then @aftereach i will restart the browser. The pr

Solution 1:

You should use the done and done.fail methods to exit the async beforeEach. You begin to execute Test.exe and immediately call done. This could have undesired results since the process could still be executing. I do not believe process.on('exit' every gets called. Below might get you started on the right track using event emitters from the child process.

beforeEach((done) => {
  const execFile = require('child_process').execFile;

  browser.get('URL'); 

  // child is of type ChildProcess
  const child = execFile('Test.exe', (error, stdout, stderr) => {
    if (error) {
      done.fail(stderr);
    }
    console.log(stdout);
  });

  // ChildProcess has event emitters and should be used to check if Test.exe
  // is done, has an error, etc.
  // See: https://nodejs.org/api/child_process.html#child_process_class_childprocess

  child.on('exit', () => {
    done();
  });
  child.on('error', (err) => {
    done.fail(stderr);
  });

});