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diff --git a/test/unit/ui/app/reducers/metamask.spec.js b/test/unit/ui/app/reducers/metamask.spec.js
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+++ b/test/unit/ui/app/reducers/metamask.spec.js
@@ -0,0 +1,576 @@
+import assert from 'assert'
+import reduceMetamask from '../../../../../ui/app/reducers/metamask'
+import * as actions from '../../../../../ui/app/actions'
+
+describe('MetaMask Reducers', () => {
+
+  it('init state', () => {
+    const initState = reduceMetamask({metamask:{}}, {})
+    assert(initState)
+  })
+
+  it('sets revealing seed to true and adds seed words to new state', () => {
+    const seedWordsState = reduceMetamask({}, {
+      type: actions.SHOW_NEW_VAULT_SEED,
+      value: 'test seed words',
+    })
+
+    assert.equal(seedWordsState.seedWords, 'test seed words')
+    assert.equal(seedWordsState.isRevealingSeedWords, true)
+  })
+
+  it('shows account page', () => {
+    const seedWordsState = {
+      metamask: {
+        seedwords: 'test seed words',
+        isRevealing: true,
+      },
+    }
+
+    const state = reduceMetamask(seedWordsState, {
+      type: actions.SHOW_ACCOUNTS_PAGE,
+    })
+
+    assert.equal(state.seedWords, undefined)
+    assert.equal(state.isRevealingSeedWords, false)
+  })
+
+  it('shows notice', () => {
+    const notice = {
+      id: 0,
+      read: false,
+      date: 'Date',
+      title: 'Title',
+      body: 'Body',
+    }
+
+    const state = reduceMetamask({}, {
+      type: actions.SHOW_NOTICE,
+      value: notice,
+    })
+
+    assert.equal(state.noActiveNotices, false)
+    assert.equal(state.nextUnreadNotice, notice)
+  })
+
+  it('clears notice', () => {
+
+    const notice = {
+      id: 0,
+      read: false,
+      date: 'Date',
+      title: 'Title',
+      body: 'Body',
+    }
+
+    const noticesState = {
+      metamask: {
+        noActiveNotices: false,
+        nextUnreadNotice: notice,
+      },
+    }
+
+    const state = reduceMetamask(noticesState, {
+      type: actions.CLEAR_NOTICES,
+    })
+
+    assert.equal(state.noActiveNotices, true)
+    assert.equal(state.nextUnreadNotice, null)
+  })
+
+  it('unlocks MetaMask', () => {
+    const state = reduceMetamask({}, {
+      type: actions.UNLOCK_METAMASK,
+      value: 'test address',
+    })
+
+    assert.equal(state.isUnlocked, true)
+    assert.equal(state.isInitialized, true)
+    assert.equal(state.selectedAddress, 'test address')
+  })
+
+  it('locks MetaMask', () => {
+    const unlockMetaMaskState = {
+      metamask: {
+        isUnlocked: true,
+        isInitialzed: false,
+        selectedAddress: 'test address',
+      },
+    }
+    const lockMetaMask = reduceMetamask(unlockMetaMaskState, {
+      type: actions.LOCK_METAMASK,
+    })
+
+    assert.equal(lockMetaMask.isUnlocked, false)
+  })
+
+  it('sets frequent rpc list', () => {
+    const state = reduceMetamask({}, {
+      type: actions.SET_RPC_LIST,
+      value: 'https://custom.rpc',
+    })
+
+    assert.equal(state.frequentRpcList, 'https://custom.rpc')
+  })
+
+  it('sets rpc target', () => {
+    const state = reduceMetamask({}, {
+      type: actions.SET_RPC_TARGET,
+      value: 'https://custom.rpc',
+    })
+
+    assert.equal(state.provider.rpcTarget, 'https://custom.rpc')
+  })
+
+  it('sets provider type', () => {
+    const state = reduceMetamask({}, {
+      type: actions.SET_PROVIDER_TYPE,
+      value: 'provider type',
+    })
+
+    assert.equal(state.provider.type, 'provider type')
+  })
+
+  describe('CompletedTx', () => {
+    const oldState = {
+      metamask: {
+        unapprovedTxs: {
+          1: {
+            id: 1,
+            time: 1538495996507,
+            status: 'unapproved',
+            metamaskNetworkId: 4,
+            loadingDefaults: false,
+            txParams: {
+              from: '0xAddress',
+              to: '0xAddress2',
+              value: '0x16345785d8a0000',
+              gas: '0x5208',
+              gasPrice: '0x3b9aca00',
+            },
+            type: 'standard',
+          },
+          2: {
+            test: 'Should persist',
+          },
+        },
+        unapprovedMsgs: {
+          1: {
+            id: 2,
+            msgParams: {
+              from: '0xAddress',
+              data: '0xData',
+              origin: 'test origin',
+            },
+            time: 1538498521717,
+            status: 'unapproved',
+            type: 'eth_sign',
+          },
+          2: {
+            test: 'Should Persist',
+          },
+        },
+      },
+    }
+
+    it('removes tx from new state if completed in action.', () => {
+
+      const state = reduceMetamask(oldState, {
+        type: actions.COMPLETED_TX,
+        id: 1,
+      })
+
+      assert.equal(Object.keys(state.unapprovedTxs).length, 1)
+      assert.equal(state.unapprovedTxs[2].test, 'Should persist')
+    })
+
+    it('removes msg from new state if completed id in action', () => {
+      const state = reduceMetamask(oldState, {
+        type: actions.COMPLETED_TX,
+        id: 1,
+      })
+
+      assert.equal(Object.keys(state.unapprovedMsgs).length, 1)
+      assert.equal(state.unapprovedTxs[2].test, 'Should persist')
+    })
+  })
+
+  it('shows new vault seed words and sets isRevealingSeedWords to true', () => {
+    const showNewVaultSeedState = reduceMetamask({}, {
+      type: actions.SHOW_NEW_VAULT_SEED,
+      value: 'test seed words',
+    })
+
+    assert.equal(showNewVaultSeedState.isRevealingSeedWords, true)
+    assert.equal(showNewVaultSeedState.seedWords, 'test seed words')
+  })
+
+  it('shows account detail', () => {
+
+    const state = reduceMetamask({}, {
+      type: actions.SHOW_ACCOUNT_DETAIL,
+      value: 'test address',
+    })
+
+    assert.equal(state.isUnlocked, true)
+    assert.equal(state.isInitialized, true)
+    assert.equal(state.selectedAddress, 'test address')
+  })
+
+  it('sets select ', () => {
+    const state = reduceMetamask({}, {
+      type: actions.SET_SELECTED_TOKEN,
+      value: 'test token',
+    })
+
+    assert.equal(state.selectedTokenAddress, 'test token')
+  })
+
+  it('sets account label', () => {
+    const state = reduceMetamask({}, {
+      type: actions.SET_ACCOUNT_LABEL,
+      value: {
+        account: 'test account',
+        label: 'test label',
+      },
+    })
+
+    assert.deepEqual(state.identities, { 'test account': { name: 'test label' } })
+  })
+
+  it('sets current fiat', () => {
+    const value = {
+      currentCurrency: 'yen',
+      conversionRate: 3.14,
+      conversionDate: new Date(2018, 9),
+    }
+
+    const state = reduceMetamask({}, {
+      type: actions.SET_CURRENT_FIAT,
+      value,
+    })
+
+    assert.equal(state.currentCurrency, value.currentCurrency)
+    assert.equal(state.conversionRate, value.conversionRate)
+    assert.equal(state.conversionDate, value.conversionDate)
+  })
+
+  it('updates tokens', () => {
+    const newTokens = {
+      'address': '0x617b3f8050a0bd94b6b1da02b4384ee5b4df13f4',
+      'decimals': 18,
+      'symbol': 'META',
+    }
+
+    const state = reduceMetamask({}, {
+      type: actions.UPDATE_TOKENS,
+      newTokens,
+    })
+
+    assert.deepEqual(state.tokens, newTokens)
+  })
+
+  it('updates send gas limit', () => {
+
+    const state = reduceMetamask({}, {
+      type: actions.UPDATE_GAS_LIMIT,
+      value: '0xGasLimit',
+    })
+
+    assert.equal(state.send.gasLimit, '0xGasLimit')
+  })
+
+  it('updates send gas price', () => {
+    const state = reduceMetamask({}, {
+      type: actions.UPDATE_GAS_PRICE,
+      value: '0xGasPrice',
+    })
+
+    assert.equal(state.send.gasPrice, '0xGasPrice')
+  })
+
+  it('toggles account menu ', () => {
+    const state = reduceMetamask({}, {
+      type: actions.TOGGLE_ACCOUNT_MENU,
+    })
+
+    assert.equal(state.isAccountMenuOpen, true)
+  })
+
+  it('updates gas total', () => {
+    const state = reduceMetamask({}, {
+      type: actions.UPDATE_GAS_TOTAL,
+      value: '0xGasTotal',
+    })
+
+    assert.equal(state.send.gasTotal, '0xGasTotal')
+  })
+
+  it('updates send token balance', () => {
+    const state = reduceMetamask({}, {
+      type: actions.UPDATE_SEND_TOKEN_BALANCE,
+      value: '0xTokenBalance',
+    })
+
+    assert.equal(state.send.tokenBalance, '0xTokenBalance')
+  })
+
+  it('updates data', () => {
+    const state = reduceMetamask({}, {
+      type: actions.UPDATE_SEND_HEX_DATA,
+      value: '0xData',
+    })
+
+    assert.equal(state.send.data, '0xData')
+  })
+
+  it('updates send to', () => {
+    const state = reduceMetamask({}, {
+      type: actions.UPDATE_SEND_TO,
+      value: {
+        to: '0xAddress',
+        nickname: 'nickname',
+      },
+    })
+
+    assert.equal(state.send.to, '0xAddress')
+    assert.equal(state.send.toNickname, 'nickname')
+  })
+
+  it('update send from', () => {
+    const state = reduceMetamask({}, {
+      type: actions.UPDATE_SEND_FROM,
+      value: '0xAddress',
+    })
+
+    assert.equal(state.send.from, '0xAddress')
+  })
+
+  it('update send amount', () => {
+    const state = reduceMetamask({}, {
+      type: actions.UPDATE_SEND_AMOUNT,
+      value: '0xAmount',
+    })
+
+    assert.equal(state.send.amount, '0xAmount')
+  })
+
+  it('update send memo', () => {
+    const state = reduceMetamask({}, {
+      type: actions.UPDATE_SEND_MEMO,
+      value: '0xMemo',
+    })
+
+    assert.equal(state.send.memo, '0xMemo')
+  })
+
+  it('updates max mode', () => {
+    const state = reduceMetamask({}, {
+      type: actions.UPDATE_MAX_MODE,
+      value: true,
+    })
+
+    assert.equal(state.send.maxModeOn, true)
+  })
+
+  it('update send', () => {
+    const value = {
+      gasLimit: '0xGasLimit',
+      gasPrice: '0xGasPrice',
+      gasTotal: '0xGasTotal',
+      tokenBalance: '0xBalance',
+      from: '0xAddress',
+      to: '0xAddress',
+      toNickname: '',
+      maxModeOn: false,
+      amount: '0xAmount',
+      memo: '0xMemo',
+      errors: {},
+      editingTransactionId: 22,
+      forceGasMin: '0xGas',
+    }
+
+    const sendState = reduceMetamask({}, {
+      type: actions.UPDATE_SEND,
+      value,
+    })
+
+    assert.deepEqual(sendState.send, value)
+  })
+
+  it('clears send', () => {
+    const initStateSend = {
+      send:
+      { gasLimit: null,
+        gasPrice: null,
+        gasTotal: null,
+        tokenBalance: null,
+        from: '',
+        to: '',
+        amount: '0x0',
+        memo: '',
+        errors: {},
+        maxModeOn: false,
+        editingTransactionId: null,
+        forceGasMin: null,
+        toNickname: '' },
+    }
+
+    const sendState = {
+      send: {
+        gasLimit: '0xGasLimit',
+        gasPrice: '0xGasPrice',
+        gasTotal: '0xGasTotal',
+        tokenBalance: '0xBalance',
+        from: '0xAddress',
+        to: '0xAddress',
+        toNickname: '',
+        maxModeOn: false,
+        amount: '0xAmount',
+        memo: '0xMemo',
+        errors: {},
+        editingTransactionId: 22,
+        forceGasMin: '0xGas',
+      },
+    }
+
+
+    const state = reduceMetamask(sendState, {
+      type: actions.CLEAR_SEND,
+    })
+
+    assert.deepEqual(state.send, initStateSend.send)
+  })
+
+  it('updates value of tx by id', () => {
+    const oldState = {
+      metamask: {
+        selectedAddressTxList: [
+          {
+            id: 1,
+            txParams: 'foo',
+          },
+        ],
+      },
+    }
+
+    const state = reduceMetamask(oldState, {
+      type: actions.UPDATE_TRANSACTION_PARAMS,
+      id: 1,
+      value: 'bar',
+    })
+
+    assert.equal(state.selectedAddressTxList[0].txParams, 'bar')
+  })
+
+  it('updates pair for shapeshift', () => {
+    const state = reduceMetamask({}, {
+      type: actions.PAIR_UPDATE,
+      value: {
+        marketinfo: {
+          pair: 'test pair',
+          foo: 'bar',
+        },
+      },
+    })
+    assert.equal(state.tokenExchangeRates['test pair'].pair, 'test pair')
+  })
+
+  it('upates pair and coin options for shapeshift subview', () => {
+    const state = reduceMetamask({}, {
+      type: actions.SHAPESHIFT_SUBVIEW,
+      value: {
+        marketinfo: {
+          pair: 'test pair',
+        },
+        coinOptions: {
+          foo: 'bar',
+        },
+      },
+    })
+
+    assert.equal(state.coinOptions.foo, 'bar')
+    assert.equal(state.tokenExchangeRates['test pair'].pair, 'test pair')
+  })
+
+  it('sets blockies', () => {
+    const state = reduceMetamask({}, {
+      type: actions.SET_USE_BLOCKIE,
+      value: true,
+    })
+
+    assert.equal(state.useBlockie, true)
+  })
+
+  it('updates feature flag', () => {
+    const state = reduceMetamask({}, {
+      type: actions.UPDATE_FEATURE_FLAGS,
+      value: {
+        betaUI: true,
+        skipAnnounceBetaUI: true,
+      },
+    })
+
+    assert.equal(state.featureFlags.betaUI, true)
+    assert.equal(state.featureFlags.skipAnnounceBetaUI, true)
+  })
+
+  it('updates network endpoint type', () => {
+    const state = reduceMetamask({}, {
+      type: actions.UPDATE_NETWORK_ENDPOINT_TYPE,
+      value: 'endpoint',
+    })
+
+    assert.equal(state.networkEndpointType, 'endpoint')
+  })
+
+  it('close welcome screen', () => {
+    const state = reduceMetamask({}, {
+      type: actions.CLOSE_WELCOME_SCREEN,
+    })
+
+    assert.equal(state.welcomeScreenSeen, true)
+  })
+
+  it('sets current locale', () => {
+    const state = reduceMetamask({}, {
+      type: actions.SET_CURRENT_LOCALE,
+      value: 'ge',
+    })
+
+    assert.equal(state.currentLocale, 'ge')
+  })
+
+  it('sets pending tokens ', () => {
+    const payload = {
+      'address': '0x617b3f8050a0bd94b6b1da02b4384ee5b4df13f4',
+      'decimals': 18,
+      'symbol': 'META',
+    }
+
+    const pendingTokensState = reduceMetamask({}, {
+      type: actions.SET_PENDING_TOKENS,
+      payload,
+    })
+
+    assert.deepEqual(pendingTokensState.pendingTokens, payload)
+  })
+
+  it('clears pending tokens', () => {
+    const payload = {
+      'address': '0x617b3f8050a0bd94b6b1da02b4384ee5b4df13f4',
+      'decimals': 18,
+      'symbol': 'META',
+    }
+
+    const pendingTokensState = {
+      pendingTokens: payload,
+    }
+
+    const state = reduceMetamask(pendingTokensState, {
+      type: actions.CLEAR_PENDING_TOKENS,
+    })
+
+    assert.deepEqual(state.pendingTokens, {})
+  })
+})