WIP. Non-functional.

So the basic idea here is that instead of binding a hidden `grunt.even.on('watch)` event, we could register a multiTask directly, and loop over the supplied filenames.

The problem seems to be that grunt-contrib-watch doesn't expect to hand off to a multiTask, so things don't work correctly. There seems to be an approach for handling this kind of case laid out here though: https://www.npmjs.com/package/grunt-contrib-watch#compiling-files-as-needed

Needs more experimentation.

Console/node/tasks/php_tests.js

@@ -1,17 +1,17 @@
 var fs = require('fs');
 
-module.exports = function(grunt) {
-  grunt.event.on('watch', function(action, filepath) {
-	var CakeTestRunner, regex = /\.php$/;
-	if (regex.test(filepath)) {
-	  CakeTestRunner = require('../cake_test_runner'),
-	  file = new CakeTestRunner(filepath);
-
-	  if (fs.existsSync('.vagrant')) {  //@TODO: This doesn't work because the folder shows up inside the VM too.
-	    file.vagrantHost = true;
-	  }
-
-	  file.exists(function() { file.run(); });
-	}
-  });
-};
+// module.exports = function(grunt) {
+//   grunt.event.on('watch', function(action, filepath) {
+// 	var CakeTestRunner, regex = /\.php$/;
+// 	if (regex.test(filepath)) {
+// 	  CakeTestRunner = require('../cake_test_runner'),
+// 	  file = new CakeTestRunner(filepath);
+//
+// 	  if (fs.existsSync('.vagrant')) {  //@TODO: This doesn't work because the folder shows up inside the VM too.
+// 	    file.vagrantHost = true;
+// 	  }
+//
+// 	  file.exists(function() { file.run(); });
+// 	}
+//   });
+// };

Gruntfile.js

@@ -1,7 +1,7 @@
 module.exports = function(grunt) {
   grunt.loadTasks('Console/node/tasks');
   require('load-grunt-tasks')(grunt);
-  var changedFiles = {};
+  var fs = require('fs');
 
   grunt.initConfig({
     pkg: grunt.file.readJSON('package.json'),
@@ -17,6 +17,9 @@ module.exports = function(grunt) {
         }
       }
     },
+    phptestfile: {
+    	target: {},
+    },
 
     watch: {
       php: {
@@ -27,8 +30,8 @@ module.exports = function(grunt) {
           '!tmp/**',
           '!.git/**/*.php'
         ],
-        tasks: 'null' // See Console/node/tasks/php_tests.js
-//         tasks: 'phptestfile',
+//         tasks: 'null', // See Console/node/tasks/php_tests.js
+        tasks: ['phptestfile'],
         options: {
           spawn: false
         }
@@ -43,27 +46,19 @@ module.exports = function(grunt) {
   grunt.registerTask('default', ['less', 'watch']);
   grunt.registerTask('test', ['jstest']); // See Console/node/tasks/js_tests.js
 
+  grunt.registerMultiTask('phptestfile', function() {
+    var files = this.filesSrc;
+    var CakeTestRunner = require('./Console/node/cake_test_runner');
+    var phpfile;
+    var vagrantHost = fs.existsSync('.vagrant');
 
+    files.forEach(function(filepath) {
+      phpfile = new CakeTestRunner(filepath);
+      phpfile.vagrantHost = vagrantHost;
+      phpfile.exists(function() { phpfile.run(); });
+    });
 
-//   grunt.event.on('watch', function(action, filepath) {
-//     if (this.name === 'watch:php') {
-//       changedFiles[filepath] = action;
-//     }
-//   });
-//
-//   grunt.registerMultiTask('phptestfile', function() {
-//     console.log(changedFiles);
-//     return true;
-//
-//     var filepath = '?';
-//     var CakeTestRunner = require('./Console/node/cake_test_runner');
-//     var file = new CakeTestRunner(filepath);
-//
-//     if (fs.existsSync('.vagrant')) {  //@TODO: This doesn't work because the folder shows up inside the VM too.
-//       file.vagrantHost = true;
-//     }
-//
-//     file.exists(function() { file.run(); });
-//   });
-
-};
+    // Otherwise, print a success message.
+    grunt.log.ok('Files tested: ' + files.length);
+  });
+}