Call require("mock-modules").register in every mockable module.

Mocking happens only when config.constants.__MOCK__ is true.

bin/jsx

@@ -32,5 +32,23 @@ require("commoner").resolve(function(id) {
 
   // Constant propagation means removing any obviously dead code after
   // replacing constant expressions with literal (boolean) values.
-  return propagate(constants, source);
+  source = propagate(constants, source);
+
+  if (constants.__MOCK__) {
+    // Make sure there is exactly one newline at the end of the module.
+    source = source.replace(/\s+$/m, "\n");
+
+    return context.getProvidedP().then(function(idToPath) {
+      if (id !== "mock-modules" &&
+          id !== "mocks" &&
+          idToPath.hasOwnProperty("mock-modules")) {
+        return source + '\nrequire("mock-modules").register(' +
+          JSON.stringify(id) + ', module);\n';
+      }
+
+      return source;
+    });
+  }
+
+  return source;
 });

grunt/config/jsx/debug.json

@@ -1,6 +1,7 @@
 {
     "debug": true,
     "constants": {
+        "__MOCK__": true,
         "__DEV__": true
     }
 }

src/test/mock-modules.js

@@ -16,8 +16,9 @@
  * @providesModule mock-modules
  */
 
-var global = Function("return this")();
-require('test/mock-timers').installMockTimers(global);
+exports.register = function(id, module) {
+    // TODO
+};
 
 exports.dumpCache = function() {
     require("mocks").clear();
@@ -31,3 +32,6 @@ exports.dontMock = function() {
 exports.mock = function() {
     return exports;
 };
+
+var global = Function("return this")();
+require('test/mock-timers').installMockTimers(global);