From d2cd52218a67543d1c8a28c717de73507507becc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jannis=20Mo=C3=9Fhammer?= <jannis.mosshammer@netways.de>
Date: Thu, 13 Jun 2013 17:29:38 +0200
Subject: [PATCH] Add mockup for requirejs

Tests can now call require('requiremock') to bootstrap an alternative
requirejs implementation and use the resulting object for defining
dependencies and mocks

refs #4308
---
 test/js/runtests               |   3 +-
 test/js/testlib/requiremock.js | 124 +++++++++++++++++++++++++++++++++
 2 files changed, 126 insertions(+), 1 deletion(-)
 create mode 100644 test/js/testlib/requiremock.js

diff --git a/test/js/runtests b/test/js/runtests
index 27c810432..2d3b759a3 100755
--- a/test/js/runtests
+++ b/test/js/runtests
@@ -84,7 +84,8 @@ def main():
         return 2
     os.environ['NODE_PATH'] = os.environ.get('NODE_PATH', '') + \
                               ':/usr/local/lib/node_modules' \
-                              ':/usr/lib/node_modules'
+                              ':/usr/local/share/npm/lib/node_modules' \
+                              ':/usr/lib/node_modules:./testlib'
 
     # Commandline preparation
     command_options, more_command_options = [], None
diff --git a/test/js/testlib/requiremock.js b/test/js/testlib/requiremock.js
new file mode 100644
index 000000000..5bda50d18
--- /dev/null
+++ b/test/js/testlib/requiremock.js
@@ -0,0 +1,124 @@
+/**
+* {{LICENSE_HEADER}}
+* {{LICENSE_HEADER}}
+**/
+
+/**
+*   This node module acts as a mock for requirejs and allows you to 
+*   define your own dependencies in your tests. It also removes the 
+*   asynchronous character of dependency loading, so you don't need
+*   to handle everthing in the callbacks.
+*
+*   Per default it resolves the 'logging' dependency by routing it 
+*   to console.
+*  
+**/
+var registeredDependencies = {};
+
+/**
+*   Mock for the requirejs(dependencyList, callback) function, loads
+*   all dependencies that have been registered under the given names
+*   in dependencies and calls fn with them as the parameter
+*
+**/
+var requireJsMock = function(dependencies, fn) {
+    var fnArgs = [];
+    for (var i=0;i<dependencies.length;i++) {
+        if (typeof registeredDependencies[dependencies[i]] === "undefined") {
+            console.warn("Unknown dependency "+dependencies[i]+" in define()");
+        }
+        fnArgs.push(registeredDependencies[dependencies[i]]);
+    }
+    fn.apply(this,fnArgs);
+};
+
+/**
+*   Mock for the 'define' function of requireJS, behaves exactly the same
+*   except that it looks up the dependencies in the list provided by registerDepencies()
+*   A module that hasn't been defined with a name can be fetched with getDefined() (without parameter)
+*
+**/
+var defineMock = function() { 
+    var fn = function() {}, 
+        fnargs = [],
+        currentArg = 0,
+        scopeName = '__define__';
+    do {
+        var argType = typeof arguments[currentArg];
+        if( argType === "string") {
+            scopeName = arguments[currentArg];
+            currentArg++;
+            continue;
+        } else if (argType === "function") {
+            fn = arguments[currentArg];
+        } else if (Array.isArray(arguments[currentArg])) {
+            var argList = arguments[currentArg];
+            fn = arguments[currentArg+1];
+            for (var i=0;i<argList.length;i++) {
+                if (typeof registerDependencies[argList[i]] === "undefined") {
+                    console.warn("Unknown dependency "+argList[i]+" in define()");
+                }
+                
+                fnargs.push(registeredDependencies[argList[i]]);
+            }
+        }
+        break;
+    } while(true);
+    registeredDependencies[scopeName] = fn.apply(this,fnargs);
+};
+
+/**
+*   Called on module initialisation, will register the 
+*   requirejs, define and jquery '$' methods globally
+*   and also purge any module-global dependencies
+*
+**/
+function initRequireMethods() {
+    GLOBAL.$ = require('jquery');
+    GLOBAL.requirejs = requireJsMock;
+    GLOBAL.define = defineMock;
+    registeredDependencies = {
+        'jquery' : GLOBAL.$,
+        'logging' : console
+    };
+}
+initRequireMethods();
+
+/**
+*   Resets all additional dependencies, i.e. all dependencies
+*   without a name
+**/
+function purgeDependencies() {
+    registeredDependencies = {
+        'jquery' : GLOBAL.$,
+        '__define__' : registeredDependencies.__define__,
+        'logging' : console
+    };
+}
+// helper to log debug messages with console
+console.debug = console.log;
+
+/**
+*  Registers a name=>object map of dependencies
+*  for lookup with requirejs()/define()
+**/
+function registerDependencies(obj) {
+    for(var name in obj) {
+        registeredDependencies[name] = obj[name];
+    }
+}
+
+/**
+*   The API for this module
+**/
+module.exports = {
+    purgeDependencies: purgeDependencies,
+    registerDependencies: registerDependencies,
+    getDefine: function(name) {
+        if (typeof arg === "undefined") {
+            return registeredDependencies.__define__;
+        } else {
+            return registeredDependencies[name];
+        }
+    }
+};