Updated the files.

my-app/node_modules/less/test/browser/runner-modify-vars-spec.js

@@ -0,0 +1,33 @@
+var alreadyRun = false;
+
+describe('less.js modify vars', function () {
+    beforeEach(function (done) {
+        // simulating "setUp" or "beforeAll" method
+        if (alreadyRun) {
+            done();
+            return;
+        }
+
+        alreadyRun = true;
+
+        less.pageLoadFinished
+            .then(function () {
+                less.modifyVars({
+                    var1: 'green',
+                    var2: 'purple',
+                    scale: 20
+                }).then(function () {
+                    done();
+                });
+            });
+    });
+
+    testLessEqualsInDocument();
+    it('Should log only 2 XHR requests', function (done) {
+        var xhrLogMessages = logMessages.filter(function (item) {
+            return (/XHR: Getting '/).test(item);
+        });
+        expect(xhrLogMessages.length).to.equal(2);
+        done();
+    });
+});