Test for each pie working.

cli/test.js

@@ -1,13 +1,45 @@
 var fs = require( 'fs' ),
-    path = require( 'path' ),
-    mocha = require( 'mocha' );
+    path = require( 'path' );
 
 module.exports = {
+    getEngine: function( engine ) {
+        // This function is necessary to only require once
+        // even when a function is called several times
+        if ( !this.engine ) {
+            this.engine = require(
+                path.join( __dirname, 'tests', engine + '.js' )
+            );
+        }
+        return this.engine;
+    },
+
     test: function( pie ) {
         // First, get the pie if it's not an object
         if ( typeof pie === 'string' ) {
             pie = getPie( pie );
         }
+
+        // Get the config to know which test engine to use
+        var config = JSON.parse(
+            fs.readFileSync(
+                path.join( process.cwd(), 'config.json' )
+            )
+        );
+
+        // Set the list of supported test engines
+        var supported = [
+            'mocha'
+        ];
+
+        // If the test engine isn't part of the supported ones,
+        // stop the program immediately.
+        if ( !~supported.indexOf( config[ 'test engine' ] ) ) {
+            console.error( 'Test engine not supported.' );
+            process.exit( -1 );
+        }
+
+        // Run the test engine
+        module.exports.getEngine( config[ 'test engine' ] ).test( pie );
     },
 
     testAll: function() {
@@ -16,8 +48,8 @@ module.exports = {
 
         // For each pie, run mocha
         Object.keys( pies ).forEach( function( pie ) {
-            this.test( pies[ pie ] );
-        }, this );
+            module.exports.test( pies[ pie ] );
+        });
     }
 };
 

cli/tests/mocha.js

@@ -0,0 +1,44 @@
+var Mocha = require( 'mocha' ),
+    mocha = new Mocha,
+    fs = require( 'fs' ),
+    path = require( 'path' );
+
+module.exports = {
+    // Run the test using mocha on a pie
+    test: function( pie ) {
+        // Get all the test files of this pie
+        var files = fs.readdirSync(
+            path.join( process.cwd(), 'pies', pie.path, 'test' )
+
+        ).filter( function( file ) {
+            // Keep only the .js files
+            return file.substr( -3 ) === '.js';
+
+        }).forEach( function( file ) {
+            // Add each file to mocha
+            mocha.addFile(
+                path.join(
+                    process.cwd(),
+                    'pies',
+                    pie.path,
+                    'test',
+                    file
+                )
+            );
+        });
+
+        // If there is no file to test in this pie, just return
+        if ( mocha.files.length === 0 ) {
+            return;
+        }
+
+        // Get the pie name by splitting the path
+        var pieName = pie.path.split( '/' ).reverse()[ 0 ];
+
+        console.log( '\nRunning tests for ' + pieName );
+
+        // And run mocha tests while setting the reporter to "list"
+        mocha.reporter( 'list' ).run();
+    }
+};
+