refine pipeline to run prettier and tests (#7)

* refine pipeline to run prettier and tests

* fix prettier failure

Author: liorheber

.travis.yml

@@ -5,6 +5,8 @@ cache: yarn
 
 script:
   - export BRANCH=$(if [ "$TRAVIS_PULL_REQUEST" == "false" ]; then echo $TRAVIS_BRANCH; else echo $TRAVIS_PULL_REQUEST_BRANCH; fi)
+  - yarn prettier
+  - yarn test
   - yarn build
   - cd ./packages/docs
   - yarn install

packages/core/tests/index.spec.js

@@ -6,6 +6,6 @@ import toJson from "enzyme-to-json";
 describe("core component", () => {
   test("will render", () => {
     const cmp = shallow(<HelloWorld />);
-    expect(toJson((cmp))).toMatchSnapshot();
+    expect(toJson(cmp)).toMatchSnapshot();
   });
 });