Merge pull request #2212 from MatthewShao/jest-dev

[web] Update Jest config and coverage ++

.travis.yml

@@ -52,8 +52,10 @@ matrix:
       before_install:
           - curl -o- -L https://yarnpkg.com/install.sh | bash
           - export PATH=$HOME/.yarn/bin:$PATH
-      install: cd web && yarn
-      script: npm test
+      install:
+          - cd web && yarn
+          - yarn global add codecov
+      script: npm test && codecov
       cache:
           yarn: true
           directories:

web/package.json

@@ -13,6 +13,11 @@
     ],
     "unmockedModulePathPatterns": [
       "react"
+    ],
+    "coverageDirectory":"./coverage",
+    "collectCoverage": true,
+    "coveragePathIgnorePatterns": [
+        "<rootDir>/src/js/filt/filt.js"
     ]
   },
   "dependencies": {

web/src/js/__tests__/ducks/settingsSpec.js

@@ -0,0 +1,26 @@
+jest.unmock('../../ducks/settings')
+jest.mock('../../utils')
+
+import reduceSettings, * as SettingsActions from '../../ducks/settings'
+
+describe('setting reducer', () => {
+    it('should return initial state', () => {
+        expect(reduceSettings(undefined, {})).toEqual({})
+    })
+
+    it('should handle receive action', () => {
+        let action = { type: SettingsActions.RECEIVE, data: 'foo' }
+        expect(reduceSettings(undefined, action)).toEqual('foo')
+    })
+
+    it('should handle update action', () => {
+        let action = {type: SettingsActions.UPDATE, data: {id: 1} }
+        expect(reduceSettings(undefined, action)).toEqual({id: 1})
+    })
+})
+
+describe('setting actions', () => {
+    it('should be possible to update setting', () => {
+        expect(reduceSettings(undefined, SettingsActions.update())).toEqual({})
+    })
+})