Fix lint error

.travis.yml

@@ -5,5 +5,4 @@ before_script:
   - export DISPLAY=:99.0
   - sh -e /etc/init.d/xvfb start
 script:
-  - npm run lint
   - npm test

CONTRIBUTING.md

@@ -57,7 +57,7 @@ To continuously watch and run tests, run the following:
 npm run test:watch
 ```
 
-To perform linting, run the following:
+To perform only linting, run the following:
 
 ```
 npm run lint

package.json

@@ -16,8 +16,9 @@
     "examples": "start-storybook -p 9001 -c ./examples/.storybook --dont-track",
     "lint": "eslint src",
     "prepublish": "npm run build && npm run build:umd",
-    "test": "jest",
-    "test:watch": "npm run test -- --watch"
+    "test": "npm run lint && npm run test:jest",
+    "test:jest": "jest",
+    "test:watch": "npm run test:jest -- --watch"
   },
   "dependencies": {
     "animated": "^0.1.3",

src/components/Image/__tests__/index-test.js

@@ -93,7 +93,8 @@ describe('components/Image', () => {
   });
 
   test('passes other props through to underlying View', () => {
-    const component = renderer.create(<Image onResponderGrant={() => {}} />);
+    const fn = () => {};
+    const component = renderer.create(<Image onResponderGrant={fn} />);
     expect(component.toJSON()).toMatchSnapshot();
   });
 });