Updated the files.

my-app/node_modules/less/test/plugins/filemanager/index.js

@@ -0,0 +1,19 @@
+(function(exports) {
+    var plugin = function(less) {
+        var FileManager = less.FileManager, TestFileManager = new FileManager();
+        function TestFileManager() { }
+        TestFileManager.loadFile = function (filename, currentDirectory, options, environment, callback) {
+            if (filename.match(/.*\.test$/)) {
+                return less.environment.fileManagers[0].loadFile('colors.test', currentDirectory, options, environment, callback);
+            }
+            return less.environment.fileManagers[0].loadFile(filename, currentDirectory, options, environment, callback);
+        };
+
+        return TestFileManager;
+    };
+
+    exports.install = function(less, pluginManager) {
+        less.environment.addFileManager(new plugin(less));
+    };
+
+})(typeof exports === 'undefined' ? this['AddFilePlugin'] = {} : exports);

my-app/node_modules/less/test/plugins/postprocess/index.js

@@ -0,0 +1,14 @@
+(function(exports) {
+    var postProcessor = function() {};
+
+    postProcessor.prototype = {
+        process: function (css) {
+            return 'hr {height:50px;}\n' + css;
+        }
+    };
+
+    exports.install = function(less, pluginManager) {
+        pluginManager.addPostProcessor( new postProcessor());
+    };
+
+})(typeof exports === 'undefined' ? this['postProcessorPlugin'] = {} : exports);

my-app/node_modules/less/test/plugins/preprocess/index.js

@@ -0,0 +1,19 @@
+(function(exports) {
+    var preProcessor = function() {};
+
+    preProcessor.prototype = {
+        process : function (src, extra) {
+            var injected = '@color: red;\n';
+            var ignored = extra.imports.contentsIgnoredChars;
+            var fileInfo = extra.fileInfo;
+            ignored[fileInfo.filename] = ignored[fileInfo.filename] || 0;
+            ignored[fileInfo.filename] += injected.length;
+            return injected + src;
+        }
+    };
+
+    exports.install = function(less, pluginManager) {
+        pluginManager.addPreProcessor( new preProcessor() );
+    };
+
+})(typeof exports === 'undefined' ? this['preProcessorPlugin'] = {} : exports);

my-app/node_modules/less/test/plugins/visitor/index.js

@@ -0,0 +1,24 @@
+(function(exports) {
+    var RemoveProperty = function(less) {
+        this._visitor = new less.visitors.Visitor(this);
+    };
+
+    RemoveProperty.prototype = {
+        isReplacing: true,
+        run: function (root) {
+            return this._visitor.visit(root);
+        },
+        visitDeclaration: function (ruleNode, visitArgs) {
+            if (ruleNode.name != '-some-aribitrary-property') {
+                return ruleNode;
+            } else {
+                return [];
+            }
+        }
+    };
+
+    exports.install = function(less, pluginManager) {
+        pluginManager.addVisitor( new RemoveProperty(less));
+    };
+
+})(typeof exports === 'undefined' ? this['VisitorPlugin'] = {} : exports);