diff --git a/browser/app/js/actions/__tests__/alert.test.js b/browser/app/js/actions/__tests__/alert.test.js
index ca5b3e240..2602930cf 100644
--- a/browser/app/js/actions/__tests__/alert.test.js
+++ b/browser/app/js/actions/__tests__/alert.test.js
@@ -54,4 +54,16 @@ describe("Alert actions", () => {
     const actions = store.getActions()
     expect(actions).toEqual(expectedActions)
   })
+
+  it("creates alert/CLEAR action directly", () => {
+    const store = mockStore()
+    const expectedActions = [
+      {
+        type: "alert/CLEAR"
+      }
+    ]
+    store.dispatch(actionsAlert.clear())
+    const actions = store.getActions()
+    expect(actions).toEqual(expectedActions)
+  })
 })
diff --git a/browser/app/js/actions/__tests__/buckets.test.js b/browser/app/js/actions/__tests__/buckets.test.js
index 36bb6ba9f..ac7fee43f 100644
--- a/browser/app/js/actions/__tests__/buckets.test.js
+++ b/browser/app/js/actions/__tests__/buckets.test.js
@@ -40,6 +40,26 @@ describe("Buckets actions", () => {
     })
   })
 
+  it("creates buckets/SET_LIST directly", () => {
+    const store = mockStore()
+    const expectedActions = [
+      { type: "buckets/SET_LIST", buckets: ["test1", "test2"] }
+    ]
+    store.dispatch(actionsBuckets.setList(["test1", "test2"]))
+    const actions = store.getActions()
+    expect(actions).toEqual(expectedActions)
+  })
+
+  it("creates buckets/SET_FILTER directly", () => {
+    const store = mockStore()
+    const expectedActions = [
+      { type: "buckets/SET_FILTER", filter: "test" }
+    ]
+    store.dispatch(actionsBuckets.setFilter("test"))
+    const actions = store.getActions()
+    expect(actions).toEqual(expectedActions)
+  })
+
   it("should update browser url and creates buckets/SET_CURRENT_BUCKET action when selectBucket is called", () => {
     const store = mockStore()
     const expectedActions = [
diff --git a/browser/app/js/components/Login.js b/browser/app/js/components/Login.js
index e74375942..3bc6aa7a2 100644
--- a/browser/app/js/components/Login.js
+++ b/browser/app/js/components/Login.js
@@ -28,21 +28,16 @@ import { Redirect } from "react-router-dom"
 export class Login extends React.Component {
   handleSubmit(event) {
     event.preventDefault()
-    const { dispatch, history } = this.props
+    const { showAlert, history } = this.props
     let message = ""
     if (!document.getElementById("accessKey").value) {
-      message = "Secret Key cannot be empty"
-    }
-    if (!document.getElementById("secretKey").value) {
       message = "Access Key cannot be empty"
     }
+    if (!document.getElementById("secretKey").value) {
+      message = "Secret Key cannot be empty"
+    }
     if (message) {
-      dispatch(
-        actionsAlert.set({
-          type: "danger",
-          message
-        })
-      )
+      showAlert("danger", message)
       return
     }
     web
@@ -54,19 +49,14 @@ export class Login extends React.Component {
         history.push(minioBrowserPrefix)
       })
       .catch(e => {
-        dispatch(
-          actionsAlert.set({
-            type: "danger",
-            message: e.message
-          })
-        )
+        showAlert("danger", e.message)
       })
   }
 
   componentWillMount() {
-    const { dispatch } = this.props
+    const { clearAlert } = this.props
     // Clear out any stale message in the alert of previous page
-    dispatch(actionsAlert.clear())
+    clearAlert()
     document.body.classList.add("is-guest")
   }
 
@@ -74,17 +64,12 @@ export class Login extends React.Component {
     document.body.classList.remove("is-guest")
   }
 
-  clearAlert() {
-    const { dispatch } = this.props
-    dispatch(actionsAlert.clear())
-  }
-
   render() {
-    const { alert } = this.props
+    const { clearAlert, alert } = this.props
     if (web.LoggedIn()) {
       return <Redirect to={minioBrowserPrefix} />
     }
-    let alertBox = <Alert {...alert} onDismiss={this.clearAlert.bind(this)} />
+    let alertBox = <Alert {...alert} onDismiss={clearAlert} />
     // Make sure you don't show a fading out alert box on the initial web-page load.
     if (!alert.message) alertBox = ""
     return (
@@ -128,4 +113,11 @@ export class Login extends React.Component {
   }
 }
 
-export default connect(state => state)(Login)
+const mapDispatchToProps = dispatch => {
+  return {
+    showAlert: (type, message) => dispatch(actionsAlert.set({type: type, message: message})),
+    clearAlert: () => dispatch(actionsAlert.clear())
+  }
+}
+
+export default connect(state => state, mapDispatchToProps)(Login)
diff --git a/browser/app/js/components/__tests__/Alert.test.js b/browser/app/js/components/__tests__/Alert.test.js
new file mode 100644
index 000000000..5b8e3a492
--- /dev/null
+++ b/browser/app/js/components/__tests__/Alert.test.js
@@ -0,0 +1,34 @@
+/*
+ * Minio Cloud Storage (C) 2018 Minio, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import React from "react"
+import { shallow, mount } from "enzyme"
+import Alert from "../Alert"
+
+describe("Alert", () => {
+  it("should render without crashing", () => {
+    shallow(<Alert />)
+  })
+
+  it("should call onDismiss when close button is clicked", () => {
+    const onDismiss = jest.fn()
+    const wrapper = mount(
+      <Alert show={true} type="danger" message="test" onDismiss={onDismiss}/>
+    )
+    wrapper.find("button").simulate("click", { preventDefault: jest.fn() })
+    expect(onDismiss).toHaveBeenCalled()
+  })
+})
diff --git a/browser/app/js/components/__tests__/App.test.js b/browser/app/js/components/__tests__/App.test.js
new file mode 100644
index 000000000..7548cbacd
--- /dev/null
+++ b/browser/app/js/components/__tests__/App.test.js
@@ -0,0 +1,25 @@
+/*
+ * Minio Cloud Storage (C) 2018 Minio, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import React from "react"
+import { shallow } from "enzyme"
+import App from "../App"
+
+describe("App", () => {
+  it("should render without crashing", () => {
+    shallow(<App match={ {url: "/minio"} }/>)
+  })
+})
diff --git a/browser/app/js/components/__tests__/Browser.test.js b/browser/app/js/components/__tests__/Browser.test.js
new file mode 100644
index 000000000..3bb5a0e45
--- /dev/null
+++ b/browser/app/js/components/__tests__/Browser.test.js
@@ -0,0 +1,29 @@
+/*
+ * Minio Cloud Storage (C) 2018 Minio, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import React from "react"
+import { shallow } from "enzyme"
+import Browser from "../Browser"
+import configureStore from "redux-mock-store"
+
+const mockStore = configureStore()
+
+describe("Browser", () => {
+  it("should render without crashing", () => {
+    const store = mockStore()
+    shallow(<Browser store={store}/>)
+  })
+})
diff --git a/browser/app/js/components/__tests__/BucketContainer.test.js b/browser/app/js/components/__tests__/BucketContainer.test.js
new file mode 100644
index 000000000..2c3807d8a
--- /dev/null
+++ b/browser/app/js/components/__tests__/BucketContainer.test.js
@@ -0,0 +1,52 @@
+/*
+ * Minio Cloud Storage (C) 2018 Minio, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import React from "react"
+import { shallow } from "enzyme"
+import BucketContainer from "../BucketContainer"
+import configureStore from "redux-mock-store"
+
+const mockStore = configureStore()
+
+describe("BucketContainer", () => {
+  let store
+  beforeEach(() => {
+    store = mockStore({
+      buckets: {
+        currentBucket: "Test"
+      }
+    })
+    store.dispatch = jest.fn()
+  })
+  
+  it("should render without crashing", () => {
+    shallow(<BucketContainer store={store}/>)
+  })
+
+  it('maps state and dispatch to props', () => {
+    const wrapper = shallow(<BucketContainer store={store}/>)
+    expect(wrapper.props()).toEqual(expect.objectContaining({
+      isActive: expect.any(Boolean),
+      selectBucket: expect.any(Function)
+    }))
+  })
+
+  it('maps selectBucket to dispatch action', () => {
+    const wrapper = shallow(<BucketContainer store={store}/>)
+    wrapper.props().selectBucket()
+    expect(store.dispatch).toHaveBeenCalled()
+  })
+})
diff --git a/browser/app/js/components/__tests__/BucketList.test.js b/browser/app/js/components/__tests__/BucketList.test.js
index cda8bf5ad..b64d29192 100644
--- a/browser/app/js/components/__tests__/BucketList.test.js
+++ b/browser/app/js/components/__tests__/BucketList.test.js
@@ -18,7 +18,12 @@ import React from "react"
 import { shallow } from "enzyme"
 import { BucketList } from "../BucketList"
 
-describe("Bucket", () => {
+describe("BucketList", () => {
+  it("should render without crashing", () => {
+    const fetchBuckets = jest.fn()
+    shallow(<BucketList visibleBuckets={[]} fetchBuckets={fetchBuckets} />)
+  })
+
   it("should call fetchBuckets before component is mounted", () => {
     const fetchBuckets = jest.fn()
     const wrapper = shallow(
diff --git a/browser/app/js/components/__tests__/Host.test.js b/browser/app/js/components/__tests__/Host.test.js
new file mode 100644
index 000000000..6fcea1026
--- /dev/null
+++ b/browser/app/js/components/__tests__/Host.test.js
@@ -0,0 +1,25 @@
+/*
+ * Minio Cloud Storage (C) 2018 Minio, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import React from "react"
+import { shallow } from "enzyme"
+import Host from "../Host"
+
+describe("Host", () => {
+  it("should render without crashing", () => {
+    shallow(<Host />)
+  })
+})
diff --git a/browser/app/js/components/__tests__/Login.test.js b/browser/app/js/components/__tests__/Login.test.js
new file mode 100644
index 000000000..f8e5f8775
--- /dev/null
+++ b/browser/app/js/components/__tests__/Login.test.js
@@ -0,0 +1,99 @@
+/*
+ * Minio Cloud Storage (C) 2018 Minio, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import React from "react"
+import { shallow, mount } from "enzyme"
+import { Login } from "../Login"
+import web from "../../web"
+
+jest.mock('../../web', () => ({
+  Login: jest.fn(() => {
+    return Promise.resolve({ token: "test", uiVersion: "2018-02-01T01:17:47Z" })
+  }),
+  LoggedIn: jest.fn()
+}))
+
+describe("Login", () => {
+  const dispatchMock = jest.fn()
+  const showAlertMock = jest.fn()
+  const clearAlertMock = jest.fn()
+  
+  it("should render without crashing", () => {
+    shallow(<Login 
+      dispatch={dispatchMock} 
+      alert={{ show: false, type: "danger"}}
+      showAlert={showAlertMock}
+      clearAlert={clearAlertMock}
+    />)
+  })
+
+  it("should initially have the is-guest class", () => {
+    const wrapper = shallow(
+      <Login 
+        dispatch={dispatchMock} 
+        alert={{ show: false, type: "danger"}}
+        showAlert={showAlertMock}
+        clearAlert={clearAlertMock}
+      />,
+      { attachTo: document.body }
+    )
+    expect(document.body.classList.contains("is-guest")).toBeTruthy()
+  })
+
+  it("should throw an alert if the keys are empty in login form", () => {
+    const wrapper = mount(
+      <Login 
+        dispatch={dispatchMock} 
+        alert={{ show: false, type: "danger"}}
+        showAlert={showAlertMock}
+        clearAlert={clearAlertMock}
+      />,
+      { attachTo: document.body }
+    )
+    // case where both keys are empty - displays the second warning
+    wrapper.find("form").simulate("submit")
+    expect(showAlertMock).toHaveBeenCalledWith("danger", "Secret Key cannot be empty")
+
+    // case where access key is empty
+    document.getElementById("secretKey").value = "secretKey"
+    wrapper.find("form").simulate("submit")
+    expect(showAlertMock).toHaveBeenCalledWith("danger", "Access Key cannot be empty")
+
+    // case where secret key is empty
+    document.getElementById("accessKey").value = "accessKey"
+    wrapper.find("form").simulate("submit")
+    expect(showAlertMock).toHaveBeenCalledWith("danger", "Secret Key cannot be empty")
+  })
+
+  it("should call web.Login with correct arguments if both keys are entered", () => {
+    const wrapper = mount(
+      <Login 
+        dispatch={dispatchMock} 
+        alert={{ show: false, type: "danger"}}
+        showAlert={showAlertMock}
+        clearAlert={clearAlertMock}
+      />,
+      { attachTo: document.body }
+    )
+    document.getElementById("accessKey").value = "accessKey"
+    document.getElementById("secretKey").value = "secretKey"
+    wrapper.find("form").simulate("submit")
+    expect(web.Login).toHaveBeenCalledWith({
+      "username": "accessKey", 
+      "password": "secretKey"
+    })
+  })
+})
diff --git a/browser/app/js/components/__tests__/SideBar.test.js b/browser/app/js/components/__tests__/SideBar.test.js
new file mode 100644
index 000000000..f1020de29
--- /dev/null
+++ b/browser/app/js/components/__tests__/SideBar.test.js
@@ -0,0 +1,27 @@
+/*
+ * Minio Cloud Storage (C) 2018 Minio, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import React from "react"
+import { shallow } from "enzyme"
+import { SideBar } from "../SideBar"
+
+describe("SideBar", () => {
+  it("should render without crashing", () => {
+    shallow(<SideBar />)
+  })
+
+  // ClickOutHandler test to be added when corresponding function is added
+})
diff --git a/browser/app/js/jest/__mocks__/fileMock.js b/browser/app/js/jest/__mocks__/fileMock.js
new file mode 100644
index 000000000..84c1da6fd
--- /dev/null
+++ b/browser/app/js/jest/__mocks__/fileMock.js
@@ -0,0 +1 @@
+module.exports = 'test-file-stub';
\ No newline at end of file
diff --git a/browser/app/js/reducers/__tests__/buckets.test.js b/browser/app/js/reducers/__tests__/buckets.test.js
index e27e36cb3..38b68515e 100644
--- a/browser/app/js/reducers/__tests__/buckets.test.js
+++ b/browser/app/js/reducers/__tests__/buckets.test.js
@@ -27,7 +27,7 @@ describe("buckets reducer", () => {
     })
   })
 
-  it("should handle SET_BUCKETS", () => {
+  it("should handle SET_LIST", () => {
     const newState = reducer(undefined, {
       type: actions.SET_LIST,
       buckets: ["bk1", "bk2"]
@@ -35,7 +35,7 @@ describe("buckets reducer", () => {
     expect(newState.list).toEqual(["bk1", "bk2"])
   })
 
-  it("should handle SET_BUCKETS_FILTER", () => {
+  it("should handle SET_FILTER", () => {
     const newState = reducer(undefined, {
       type: actions.SET_FILTER,
       filter: "test"
@@ -43,7 +43,7 @@ describe("buckets reducer", () => {
     expect(newState.filter).toEqual("test")
   })
 
-  it("should handle SELECT_BUCKET", () => {
+  it("should handle SET_CURRENT_BUCKET", () => {
     const newState = reducer(undefined, {
       type: actions.SET_CURRENT_BUCKET,
       bucket: "test"
diff --git a/browser/package.json b/browser/package.json
index 3860e2d49..9a265d4f8 100644
--- a/browser/package.json
+++ b/browser/package.json
@@ -13,7 +13,9 @@
     "setupTestFrameworkScriptFile": "./app/js/jest/setup.js",
     "testURL": "https://localhost:8080",
     "moduleNameMapper": {
-      "\\.(css|scss|svg)$": "identity-obj-proxy"
+      "\\.(jpg|jpeg|png|gif|eot|otf|webp|svg|ttf|woff|woff2|mp4|webm|wav|mp3|m4a|aac|oga)$":
+        "<rootDir>/app/js/jest/__mocks__/fileMock.js",
+      "\\.(css|scss)$": "identity-obj-proxy"
     }
   },
   "repository": {