diff --git a/karma.conf.js b/karma.conf.js
index 07cf09ea5d..209837431f 100644
--- a/karma.conf.js
+++ b/karma.conf.js
@@ -25,10 +25,9 @@ module.exports = function (config) {
             "src/core/wrapper/layout.js",
             "src/core/plugin.js",
             "src/core/**/*.js",
-            "private/prepare.js",
             "src/data/**/*.js",
             "src/**/*.test.js",
-            "test/**/*.test.js"
+            "test/**/*.js"
         ],
 
 
diff --git a/private/prepare.js b/test/prepare.js
similarity index 100%
rename from private/prepare.js
rename to test/prepare.js
diff --git a/test/utils/base.test.js b/test/utils/base.test.js
index a6c942fc85..5184f79bff 100644
--- a/test/utils/base.test.js
+++ b/test/utils/base.test.js
@@ -105,6 +105,6 @@ describe("baseFunctionTest", function () {
      */
     it("makeArray", function () {
         var a = BI.makeArray(2, 1);
-        expect(a).to.deep.equal([1, 1, 1]);
+        expect(a).to.deep.equal([1, 1]);
     });
 });