How do I get Yeoman to continuously run tests - gruntjs

Question

When I run grunt server, my file edits are picked up and the browser refreshed through livereload.
When I run grunt test, it runs once and shuts down.
This behavior can be simulated by running
yo angular --minsafe mytest
grunt test
When I change karma.unit.singlerun = false in the Gruntfile, grunt test now says that a watcher is running, but no file changes seem to trigger running the tests again.
How do I get the reload capability with the tests similar to the way linemanjs works?

Answer 1

You were almost there! There's an additional option you can set in the Gruntfile called autoWatch, which monitors the files specified in your karma.conf.js for changes. A complete entry in your Gruntfile could look like this:
karma: {
unit: {
configFile: 'karma.conf.js',
singleRun: true,
autoWatch: false
},
server: {
configFile: 'karma.conf.js',
singleRun: false,
autoWatch: true
}
}

Answer 2

I set up as following
karma: {
unit: {
configFile: 'karma.conf.js',
singleRun: false,
autoWatch: true
}
}
It stands but can't rerun unit test when I change files, grunt karma:unit output
PhantomJS 1.9.7 (Linux) Controller: MainCtrl should attach a list of awesomeThings to the scope FAILED
Expected 3 to be 100.
PhantomJS 1.9.7 (Linux): Executed 1 of 1 (1 FAILED) ERROR (0.04 secs / 0.014 secs)
Found it: I use shared folder in Virtual and changing it outside virtual machine so that autoWatch can't recognize these changes.