diff --git a/test/unit/app/browser/reducers/siteSettingsReducerTest.js b/test/unit/app/browser/reducers/siteSettingsReducerTest.js
new file mode 100644
index 00000000000..72fc2a6f5c3
--- /dev/null
+++ b/test/unit/app/browser/reducers/siteSettingsReducerTest.js
@@ -0,0 +1,83 @@
+/* global describe, it, before, after */
+const mockery = require('mockery')
+const sinon = require('sinon')
+const Immutable = require('immutable')
+const assert = require('assert')
+const fakeElectron = require('../../../lib/fakeElectron')
+
+const appConstants = require('../../../../../js/constants/appConstants')
+require('../../../braveUnit')
+
+describe('siteSettingsReducer unit tests', function () {
+  let siteSettingsReducer
+  let siteSettings
+
+  before(function () {
+    mockery.enable({
+      warnOnReplace: false,
+      warnOnUnregistered: false,
+      useCleanCache: true
+    })
+
+    mockery.registerMock('electron', fakeElectron)
+    siteSettings = require('../../../../../js/state/siteSettings')
+    mockery.registerMock('../../../js/state/siteSettings', siteSettings)
+
+    siteSettingsReducer = require('../../../../../app/browser/reducers/siteSettingsReducer')
+  })
+
+  after(function () {
+    mockery.disable()
+  })
+
+  describe('APP_ALLOW_FLASH_ONCE', function () {
+    let fakeAppState
+    let mergeSiteSettingSpy
+
+    before(function () {
+      mergeSiteSettingSpy = sinon.spy(siteSettings, 'mergeSiteSetting')
+      fakeAppState = Immutable.fromJS({
+        siteSettings: {
+          regularTabSetting: ''
+        },
+        temporarySiteSettings: {
+          privateTabSetting: ''
+        }
+      })
+    })
+    after(function () {
+      mergeSiteSettingSpy.restore()
+    })
+    it('merges setting into siteSettings if regular tab', function () {
+      siteSettingsReducer(fakeAppState, Immutable.fromJS({
+        actionType: appConstants.APP_ALLOW_FLASH_ONCE,
+        isPrivate: false,
+        url: 'https://example.com/test/page.html'
+      }))
+      assert(mergeSiteSettingSpy.withArgs(fakeAppState.get('siteSettings'), 'https://example.com', 'flash', 1).calledOnce)
+    })
+    it('merges setting into siteSettings if private tab', function () {
+      siteSettingsReducer(fakeAppState, Immutable.fromJS({
+        actionType: appConstants.APP_ALLOW_FLASH_ONCE,
+        isPrivate: true,
+        url: 'https://example.com/test/page.html'
+      }))
+      assert(mergeSiteSettingSpy.withArgs(fakeAppState.get('temporarySiteSettings'), 'https://example.com', 'flash', 1).calledOnce)
+    })
+  })
+
+  describe('APP_ALLOW_FLASH_ALWAYS', function () {
+  })
+
+  describe('APP_CHANGE_SITE_SETTING', function () {
+  })
+
+  describe('APP_REMOVE_SITE_SETTING', function () {
+  })
+
+  describe('APP_CLEAR_SITE_SETTINGS', function () {
+  })
+
+  describe('APP_ADD_NOSCRIPT_EXCEPTIONS', function () {
+  })
+})