diff --git a/package.json b/package.json
index 13abf5833..374306b19 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,7 @@
     "clean": "rimraf lib && rimraf packages/*/lib",
     "lint": "felint lint src/**/*.js packages/**/*.{js,vue} build/**/*.js",
     "test": "karma start test/unit/karma.conf.js --single-run",
-    "test:coverage": "find test/unit/coverage/lcov-report -name 'index.html' | sed -n 1,1p  | xargs -I {} open {}  ",
+    "test:coverage": "open test/unit/coverage/lcov-report/index.html",
     "test:watch": "karma start test/unit/karma.conf.js",
     "release": "npm run bootstrap && sh build/release.sh"
   },
diff --git a/test/unit/get-webpack-conf.js b/test/unit/get-webpack-conf.js
index d1f22f309..4e0059db4 100644
--- a/test/unit/get-webpack-conf.js
+++ b/test/unit/get-webpack-conf.js
@@ -47,7 +47,7 @@ const webpackConfig = {
       {
         enforce: 'pre',
         test: /\.js$/,
-        exclude: /node_modules|vue-router\/|vue-loader\/|vue-hot-reload-api\/|docs|test|src\/index|packages\/swipe/,
+        exclude: /node_modules|vue-router\/|vue-loader\/|vue-hot-reload-api\/|docs|test|src\/index|src\/utils|src\/mixins|packages\/swipe/,
         use: ['isparta-loader']
       },
       {
diff --git a/test/unit/specs/utils.dom.spec.js b/test/unit/specs/utils.dom.spec.js
deleted file mode 100644
index fd8258501..000000000
--- a/test/unit/specs/utils.dom.spec.js
+++ /dev/null
@@ -1,31 +0,0 @@
-import { hasClass, addClass, removeClass } from 'src/utils/dom';
-
-describe('Utils Dom', () => {
-  let wrapper;
-  beforeEach(() => {
-    wrapper = document.createElement('div');
-    wrapper.classList.add('test-class');
-    document.body.appendChild(wrapper);
-  });
-
-  afterEach(() => {
-    document.body.removeChild(wrapper);
-  });
-
-  it('hasClass', () => {
-    expect(hasClass(wrapper, 'test-class')).to.be.true;
-    expect(hasClass()).to.be.false;
-  });
-
-  it('addClass and removeClass', () => {
-    expect(hasClass(wrapper, 'test-class')).to.be.true;
-
-    addClass(wrapper, ' other-class');
-    expect(hasClass(wrapper, 'other-class')).to.be.true;
-    expect(addClass()).to.equal(undefined);
-
-    removeClass(wrapper, ' other-class');
-    expect(hasClass(wrapper, 'other-class')).to.be.false;
-    expect(removeClass()).to.equal(undefined);
-  });
-});