merge

18 files changed, 919 insertions, 0 deletions

diff --git a/ui/app/pages/send/send-content/send-amount-row/README.md b/ui/app/pages/send/send-content/send-amount-row/README.md
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/ui/app/pages/send/send-content/send-amount-row/README.md
diff --git a/ui/app/pages/send/send-content/send-amount-row/amount-max-button/amount-max-button.component.js b/ui/app/pages/send/send-content/send-amount-row/amount-max-button/amount-max-button.component.js
new file mode 100644
index 000000000..7901ccef6
--- /dev/null
+++ b/ui/app/pages/send/send-content/send-amount-row/amount-max-button/amount-max-button.component.js
@@ -0,0 +1,75 @@
+import React, { Component } from 'react'
+import PropTypes from 'prop-types'
+import classnames from 'classnames'
+
+export default class AmountMaxButton extends Component {
+
+  static propTypes = {
+    balance: PropTypes.string,
+    buttonDataLoading: PropTypes.bool,
+    clearMaxAmount: PropTypes.func,
+    inError: PropTypes.bool,
+    gasTotal: PropTypes.string,
+    maxModeOn: PropTypes.bool,
+    selectedToken: PropTypes.object,
+    setAmountToMax: PropTypes.func,
+    setMaxModeTo: PropTypes.func,
+    tokenBalance: PropTypes.string,
+
+  }
+
+  static contextTypes = {
+    t: PropTypes.func,
+    metricsEvent: PropTypes.func,
+  }
+
+  setMaxAmount () {
+    const {
+      balance,
+      gasTotal,
+      selectedToken,
+      setAmountToMax,
+      tokenBalance,
+    } = this.props
+
+    setAmountToMax({
+      balance,
+      gasTotal,
+      selectedToken,
+      tokenBalance,
+    })
+  }
+
+  onMaxClick = () => {
+    const { setMaxModeTo, clearMaxAmount, maxModeOn } = this.props
+    const { metricsEvent } = this.context
+
+    metricsEvent({
+      eventOpts: {
+        category: 'Transactions',
+        action: 'Edit Screen',
+        name: 'Clicked "Amount Max"',
+      },
+    })
+    if (!maxModeOn) {
+      setMaxModeTo(true)
+      this.setMaxAmount()
+    } else {
+      setMaxModeTo(false)
+      clearMaxAmount()
+    }
+  }
+
+  render () {
+    const { maxModeOn, buttonDataLoading, inError } = this.props
+
+    return (
+          <div className={'send-v2__amount-max'} onClick={buttonDataLoading || inError ? null : this.onMaxClick}>
+            <input type="checkbox" checked={maxModeOn} />
+            <div className={classnames('send-v2__amount-max__button', { 'send-v2__amount-max__button__disabled': buttonDataLoading || inError })}>
+                {this.context.t('max')}
+            </div>
+          </div>
+      )
+  }
+}
diff --git a/ui/app/pages/send/send-content/send-amount-row/amount-max-button/amount-max-button.container.js b/ui/app/pages/send/send-content/send-amount-row/amount-max-button/amount-max-button.container.js
new file mode 100644
index 000000000..e444589a1
--- /dev/null
+++ b/ui/app/pages/send/send-content/send-amount-row/amount-max-button/amount-max-button.container.js
@@ -0,0 +1,45 @@
+import { connect } from 'react-redux'
+import {
+  getGasTotal,
+  getSelectedToken,
+  getSendFromBalance,
+  getTokenBalance,
+} from '../../../send.selectors.js'
+import { getBasicGasEstimateLoadingStatus } from '../../../../../selectors/custom-gas'
+import { getMaxModeOn } from './amount-max-button.selectors.js'
+import { calcMaxAmount } from './amount-max-button.utils.js'
+import {
+  updateSendAmount,
+  setMaxModeTo,
+} from '../../../../../store/actions'
+import AmountMaxButton from './amount-max-button.component'
+import {
+  updateSendErrors,
+} from '../../../../../ducks/send/send.duck'
+
+export default connect(mapStateToProps, mapDispatchToProps)(AmountMaxButton)
+
+function mapStateToProps (state) {
+
+  return {
+    balance: getSendFromBalance(state),
+    buttonDataLoading: getBasicGasEstimateLoadingStatus(state),
+    gasTotal: getGasTotal(state),
+    maxModeOn: getMaxModeOn(state),
+    selectedToken: getSelectedToken(state),
+    tokenBalance: getTokenBalance(state),
+  }
+}
+
+function mapDispatchToProps (dispatch) {
+  return {
+    setAmountToMax: maxAmountDataObject => {
+      dispatch(updateSendErrors({ amount: null }))
+      dispatch(updateSendAmount(calcMaxAmount(maxAmountDataObject)))
+    },
+    clearMaxAmount: () => {
+      dispatch(updateSendAmount('0'))
+    },
+    setMaxModeTo: bool => dispatch(setMaxModeTo(bool)),
+  }
+}
diff --git a/ui/app/pages/send/send-content/send-amount-row/amount-max-button/amount-max-button.selectors.js b/ui/app/pages/send/send-content/send-amount-row/amount-max-button/amount-max-button.selectors.js
new file mode 100644
index 000000000..69fec1994
--- /dev/null
+++ b/ui/app/pages/send/send-content/send-amount-row/amount-max-button/amount-max-button.selectors.js
@@ -0,0 +1,9 @@
+const selectors = {
+  getMaxModeOn,
+}
+
+module.exports = selectors
+
+function getMaxModeOn (state) {
+  return state.metamask.send.maxModeOn
+}
diff --git a/ui/app/pages/send/send-content/send-amount-row/amount-max-button/amount-max-button.utils.js b/ui/app/pages/send/send-content/send-amount-row/amount-max-button/amount-max-button.utils.js
new file mode 100644
index 000000000..a570e49b4
--- /dev/null
+++ b/ui/app/pages/send/send-content/send-amount-row/amount-max-button/amount-max-button.utils.js
@@ -0,0 +1,29 @@
+const {
+  multiplyCurrencies,
+  subtractCurrencies,
+} = require('../../../../../helpers/utils/conversion-util')
+const ethUtil = require('ethereumjs-util')
+
+function calcMaxAmount ({ balance, gasTotal, selectedToken, tokenBalance }) {
+  const { decimals } = selectedToken || {}
+  const multiplier = Math.pow(10, Number(decimals || 0))
+
+  return selectedToken
+    ? multiplyCurrencies(
+      tokenBalance,
+      multiplier,
+      {
+        toNumericBase: 'hex',
+        multiplicandBase: 16,
+      }
+    )
+    : subtractCurrencies(
+      ethUtil.addHexPrefix(balance),
+      ethUtil.addHexPrefix(gasTotal),
+      { toNumericBase: 'hex' }
+    )
+}
+
+module.exports = {
+  calcMaxAmount,
+}
diff --git a/ui/app/pages/send/send-content/send-amount-row/amount-max-button/index.js b/ui/app/pages/send/send-content/send-amount-row/amount-max-button/index.js
new file mode 100644
index 000000000..ee8271494
--- /dev/null
+++ b/ui/app/pages/send/send-content/send-amount-row/amount-max-button/index.js
@@ -0,0 +1 @@
+export { default } from './amount-max-button.container'
diff --git a/ui/app/pages/send/send-content/send-amount-row/amount-max-button/tests/amount-max-button-component.test.js b/ui/app/pages/send/send-content/send-amount-row/amount-max-button/tests/amount-max-button-component.test.js
new file mode 100644
index 000000000..f986b26bb
--- /dev/null
+++ b/ui/app/pages/send/send-content/send-amount-row/amount-max-button/tests/amount-max-button-component.test.js
@@ -0,0 +1,89 @@
+import React from 'react'
+import assert from 'assert'
+import { shallow } from 'enzyme'
+import sinon from 'sinon'
+import AmountMaxButton from '../amount-max-button.component.js'
+
+const propsMethodSpies = {
+  setAmountToMax: sinon.spy(),
+  setMaxModeTo: sinon.spy(),
+}
+
+const MOCK_EVENT = { preventDefault: () => {} }
+
+sinon.spy(AmountMaxButton.prototype, 'setMaxAmount')
+
+describe('AmountMaxButton Component', function () {
+  let wrapper
+  let instance
+
+  beforeEach(() => {
+    wrapper = shallow(<AmountMaxButton
+      balance={'mockBalance'}
+      gasTotal={'mockGasTotal'}
+      maxModeOn={false}
+      selectedToken={ { address: 'mockTokenAddress' } }
+      setAmountToMax={propsMethodSpies.setAmountToMax}
+      setMaxModeTo={propsMethodSpies.setMaxModeTo}
+      tokenBalance={'mockTokenBalance'}
+    />, {
+      context: {
+        t: str => str + '_t',
+        metricsEvent: () => {},
+      },
+    })
+    instance = wrapper.instance()
+  })
+
+  afterEach(() => {
+    propsMethodSpies.setAmountToMax.resetHistory()
+    propsMethodSpies.setMaxModeTo.resetHistory()
+    AmountMaxButton.prototype.setMaxAmount.resetHistory()
+  })
+
+  describe('setMaxAmount', () => {
+
+    it('should call setAmountToMax with the correct params', () => {
+      assert.equal(propsMethodSpies.setAmountToMax.callCount, 0)
+      instance.setMaxAmount()
+      assert.equal(propsMethodSpies.setAmountToMax.callCount, 1)
+      assert.deepEqual(
+        propsMethodSpies.setAmountToMax.getCall(0).args,
+        [{
+          balance: 'mockBalance',
+          gasTotal: 'mockGasTotal',
+          selectedToken: { address: 'mockTokenAddress' },
+          tokenBalance: 'mockTokenBalance',
+        }]
+      )
+    })
+
+  })
+
+  describe('render', () => {
+    it('should render an element with a send-v2__amount-max class', () => {
+      assert(wrapper.exists('.send-v2__amount-max'))
+    })
+
+    it('should call setMaxModeTo and setMaxAmount when the checkbox is checked', () => {
+      const {
+        onClick,
+      } = wrapper.find('.send-v2__amount-max').props()
+
+      assert.equal(AmountMaxButton.prototype.setMaxAmount.callCount, 0)
+      assert.equal(propsMethodSpies.setMaxModeTo.callCount, 0)
+      onClick(MOCK_EVENT)
+      assert.equal(AmountMaxButton.prototype.setMaxAmount.callCount, 1)
+      assert.equal(propsMethodSpies.setMaxModeTo.callCount, 1)
+      assert.deepEqual(
+        propsMethodSpies.setMaxModeTo.getCall(0).args,
+        [true]
+      )
+    })
+
+    it('should render the expected text when maxModeOn is false', () => {
+      wrapper.setProps({ maxModeOn: false })
+      assert.equal(wrapper.find('.send-v2__amount-max').text(), 'max_t')
+    })
+  })
+})
diff --git a/ui/app/pages/send/send-content/send-amount-row/amount-max-button/tests/amount-max-button-container.test.js b/ui/app/pages/send/send-content/send-amount-row/amount-max-button/tests/amount-max-button-container.test.js
new file mode 100644
index 000000000..dcee8fda0
--- /dev/null
+++ b/ui/app/pages/send/send-content/send-amount-row/amount-max-button/tests/amount-max-button-container.test.js
@@ -0,0 +1,93 @@
+import assert from 'assert'
+import proxyquire from 'proxyquire'
+import sinon from 'sinon'
+
+let mapStateToProps
+let mapDispatchToProps
+
+const actionSpies = {
+  setMaxModeTo: sinon.spy(),
+  updateSendAmount: sinon.spy(),
+}
+const duckActionSpies = {
+  updateSendErrors: sinon.spy(),
+}
+
+proxyquire('../amount-max-button.container.js', {
+  'react-redux': {
+    connect: (ms, md) => {
+      mapStateToProps = ms
+      mapDispatchToProps = md
+      return () => ({})
+    },
+  },
+  '../../../send.selectors.js': {
+    getGasTotal: (s) => `mockGasTotal:${s}`,
+    getSelectedToken: (s) => `mockSelectedToken:${s}`,
+    getSendFromBalance: (s) => `mockBalance:${s}`,
+    getTokenBalance: (s) => `mockTokenBalance:${s}`,
+  },
+  './amount-max-button.selectors.js': { getMaxModeOn: (s) => `mockMaxModeOn:${s}` },
+  './amount-max-button.utils.js': { calcMaxAmount: (mockObj) => mockObj.val + 1 },
+  '../../../../../selectors/custom-gas': { getBasicGasEstimateLoadingStatus: (s) => `mockButtonDataLoading:${s}`},
+  '../../../../../store/actions': actionSpies,
+  '../../../../../ducks/send/send.duck': duckActionSpies,
+})
+
+describe('amount-max-button container', () => {
+
+  describe('mapStateToProps()', () => {
+
+    it('should map the correct properties to props', () => {
+      assert.deepEqual(mapStateToProps('mockState'), {
+        balance: 'mockBalance:mockState',
+        buttonDataLoading: 'mockButtonDataLoading:mockState',
+        gasTotal: 'mockGasTotal:mockState',
+        maxModeOn: 'mockMaxModeOn:mockState',
+        selectedToken: 'mockSelectedToken:mockState',
+        tokenBalance: 'mockTokenBalance:mockState',
+      })
+    })
+
+  })
+
+  describe('mapDispatchToProps()', () => {
+    let dispatchSpy
+    let mapDispatchToPropsObject
+
+    beforeEach(() => {
+      dispatchSpy = sinon.spy()
+      mapDispatchToPropsObject = mapDispatchToProps(dispatchSpy)
+    })
+
+    describe('setAmountToMax()', () => {
+      it('should dispatch an action', () => {
+        mapDispatchToPropsObject.setAmountToMax({ val: 11, foo: 'bar' })
+        assert(dispatchSpy.calledTwice)
+        assert(duckActionSpies.updateSendErrors.calledOnce)
+        assert.deepEqual(
+          duckActionSpies.updateSendErrors.getCall(0).args[0],
+          { amount: null }
+        )
+        assert(actionSpies.updateSendAmount.calledOnce)
+        assert.equal(
+          actionSpies.updateSendAmount.getCall(0).args[0],
+          12
+        )
+      })
+    })
+
+    describe('setMaxModeTo()', () => {
+      it('should dispatch an action', () => {
+        mapDispatchToPropsObject.setMaxModeTo('mockVal')
+        assert(dispatchSpy.calledOnce)
+        assert.equal(
+          actionSpies.setMaxModeTo.getCall(0).args[0],
+          'mockVal'
+        )
+      })
+    })
+
+  })
+
+})
diff --git a/ui/app/pages/send/send-content/send-amount-row/amount-max-button/tests/amount-max-button-selectors.test.js b/ui/app/pages/send/send-content/send-amount-row/amount-max-button/tests/amount-max-button-selectors.test.js
new file mode 100644
index 000000000..655fe1969
--- /dev/null
+++ b/ui/app/pages/send/send-content/send-amount-row/amount-max-button/tests/amount-max-button-selectors.test.js
@@ -0,0 +1,22 @@
+import assert from 'assert'
+import {
+  getMaxModeOn,
+} from '../amount-max-button.selectors.js'
+
+describe('amount-max-button selectors', () => {
+
+  describe('getMaxModeOn()', () => {
+    it('should', () => {
+      const state = {
+        metamask: {
+          send: {
+            maxModeOn: null,
+          },
+        },
+      }
+
+      assert.equal(getMaxModeOn(state), null)
+    })
+  })
+
+})
diff --git a/ui/app/pages/send/send-content/send-amount-row/amount-max-button/tests/amount-max-button-utils.test.js b/ui/app/pages/send/send-content/send-amount-row/amount-max-button/tests/amount-max-button-utils.test.js
new file mode 100644
index 000000000..1ee858f67
--- /dev/null
+++ b/ui/app/pages/send/send-content/send-amount-row/amount-max-button/tests/amount-max-button-utils.test.js
@@ -0,0 +1,27 @@
+import assert from 'assert'
+import {
+  calcMaxAmount,
+} from '../amount-max-button.utils.js'
+
+describe('amount-max-button utils', () => {
+
+  describe('calcMaxAmount()', () => {
+    it('should calculate the correct amount when no selectedToken defined', () => {
+      assert.deepEqual(calcMaxAmount({
+        balance: 'ffffff',
+        gasTotal: 'ff',
+        selectedToken: false,
+      }), 'ffff00')
+    })
+
+    it('should calculate the correct amount when a selectedToken is defined', () => {
+      assert.deepEqual(calcMaxAmount({
+        selectedToken: {
+          decimals: 10,
+        },
+        tokenBalance: '64',
+      }), 'e8d4a51000')
+    })
+  })
+
+})
diff --git a/ui/app/pages/send/send-content/send-amount-row/index.js b/ui/app/pages/send/send-content/send-amount-row/index.js
new file mode 100644
index 000000000..abc6852fe
--- /dev/null
+++ b/ui/app/pages/send/send-content/send-amount-row/index.js
@@ -0,0 +1 @@
+export { default } from './send-amount-row.container'
diff --git a/ui/app/pages/send/send-content/send-amount-row/send-amount-row.component.js b/ui/app/pages/send/send-content/send-amount-row/send-amount-row.component.js
new file mode 100644
index 000000000..10e90c419
--- /dev/null
+++ b/ui/app/pages/send/send-content/send-amount-row/send-amount-row.component.js
@@ -0,0 +1,119 @@
+import React, { Component } from 'react'
+import PropTypes from 'prop-types'
+import SendRowWrapper from '../send-row-wrapper'
+import AmountMaxButton from './amount-max-button'
+import UserPreferencedCurrencyInput from '../../../../components/app/user-preferenced-currency-input'
+import UserPreferencedTokenInput from '../../../../components/app/user-preferenced-token-input'
+
+export default class SendAmountRow extends Component {
+
+  static propTypes = {
+    amount: PropTypes.string,
+    amountConversionRate: PropTypes.oneOfType([
+      PropTypes.string,
+      PropTypes.number,
+    ]),
+    balance: PropTypes.string,
+    conversionRate: PropTypes.number,
+    convertedCurrency: PropTypes.string,
+    gasTotal: PropTypes.string,
+    inError: PropTypes.bool,
+    primaryCurrency: PropTypes.string,
+    selectedToken: PropTypes.object,
+    setMaxModeTo: PropTypes.func,
+    tokenBalance: PropTypes.string,
+    updateGasFeeError: PropTypes.func,
+    updateSendAmount: PropTypes.func,
+    updateSendAmountError: PropTypes.func,
+    updateGas: PropTypes.func,
+  }
+
+  static contextTypes = {
+    t: PropTypes.func,
+  }
+
+  validateAmount (amount) {
+    const {
+      amountConversionRate,
+      balance,
+      conversionRate,
+      gasTotal,
+      primaryCurrency,
+      selectedToken,
+      tokenBalance,
+      updateGasFeeError,
+      updateSendAmountError,
+    } = this.props
+
+    updateSendAmountError({
+      amount,
+      amountConversionRate,
+      balance,
+      conversionRate,
+      gasTotal,
+      primaryCurrency,
+      selectedToken,
+      tokenBalance,
+    })
+
+    if (selectedToken) {
+      updateGasFeeError({
+        amountConversionRate,
+        balance,
+        conversionRate,
+        gasTotal,
+        primaryCurrency,
+        selectedToken,
+        tokenBalance,
+      })
+    }
+  }
+
+  updateAmount (amount) {
+    const { updateSendAmount, setMaxModeTo } = this.props
+
+    setMaxModeTo(false)
+    updateSendAmount(amount)
+  }
+
+  updateGas (amount) {
+    const { selectedToken, updateGas } = this.props
+
+    if (selectedToken) {
+      updateGas({ amount })
+    }
+  }
+
+  renderInput () {
+    const { amount, inError, selectedToken } = this.props
+    const Component = selectedToken ? UserPreferencedTokenInput : UserPreferencedCurrencyInput
+
+    return (
+      <Component
+        onChange={newAmount => this.validateAmount(newAmount)}
+        onBlur={newAmount => {
+          this.updateGas(newAmount)
+          this.updateAmount(newAmount)
+        }}
+        error={inError}
+        value={amount}
+      />
+    )
+  }
+
+  render () {
+    const { gasTotal, inError } = this.props
+
+    return (
+      <SendRowWrapper
+        label={`${this.context.t('amount')}:`}
+        showError={inError}
+        errorType={'amount'}
+      >
+        {gasTotal && <AmountMaxButton inError={inError} />}
+        { this.renderInput() }
+      </SendRowWrapper>
+    )
+  }
+
+}
diff --git a/ui/app/pages/send/send-content/send-amount-row/send-amount-row.container.js b/ui/app/pages/send/send-content/send-amount-row/send-amount-row.container.js
new file mode 100644
index 000000000..2b3470da4
--- /dev/null
+++ b/ui/app/pages/send/send-content/send-amount-row/send-amount-row.container.js
@@ -0,0 +1,54 @@
+import { connect } from 'react-redux'
+import {
+  getAmountConversionRate,
+  getConversionRate,
+  getCurrentCurrency,
+  getGasTotal,
+  getPrimaryCurrency,
+  getSelectedToken,
+  getSendAmount,
+  getSendFromBalance,
+  getTokenBalance,
+} from '../../send.selectors'
+import {
+  sendAmountIsInError,
+} from './send-amount-row.selectors'
+import { getAmountErrorObject, getGasFeeErrorObject } from '../../send.utils'
+import {
+  setMaxModeTo,
+  updateSendAmount,
+} from '../../../../store/actions'
+import {
+  updateSendErrors,
+} from '../../../../ducks/send/send.duck'
+import SendAmountRow from './send-amount-row.component'
+
+export default connect(mapStateToProps, mapDispatchToProps)(SendAmountRow)
+
+function mapStateToProps (state) {
+  return {
+    amount: getSendAmount(state),
+    amountConversionRate: getAmountConversionRate(state),
+    balance: getSendFromBalance(state),
+    conversionRate: getConversionRate(state),
+    convertedCurrency: getCurrentCurrency(state),
+    gasTotal: getGasTotal(state),
+    inError: sendAmountIsInError(state),
+    primaryCurrency: getPrimaryCurrency(state),
+    selectedToken: getSelectedToken(state),
+    tokenBalance: getTokenBalance(state),
+  }
+}
+
+function mapDispatchToProps (dispatch) {
+  return {
+    setMaxModeTo: bool => dispatch(setMaxModeTo(bool)),
+    updateSendAmount: newAmount => dispatch(updateSendAmount(newAmount)),
+    updateGasFeeError: (amountDataObject) => {
+      dispatch(updateSendErrors(getGasFeeErrorObject(amountDataObject)))
+    },
+    updateSendAmountError: (amountDataObject) => {
+      dispatch(updateSendErrors(getAmountErrorObject(amountDataObject)))
+    },
+  }
+}
diff --git a/ui/app/pages/send/send-content/send-amount-row/send-amount-row.scss b/ui/app/pages/send/send-content/send-amount-row/send-amount-row.scss
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/ui/app/pages/send/send-content/send-amount-row/send-amount-row.scss
diff --git a/ui/app/pages/send/send-content/send-amount-row/send-amount-row.selectors.js b/ui/app/pages/send/send-content/send-amount-row/send-amount-row.selectors.js
new file mode 100644
index 000000000..fb08c7ed7
--- /dev/null
+++ b/ui/app/pages/send/send-content/send-amount-row/send-amount-row.selectors.js
@@ -0,0 +1,9 @@
+const selectors = {
+  sendAmountIsInError,
+}
+
+module.exports = selectors
+
+function sendAmountIsInError (state) {
+  return Boolean(state.send.errors.amount)
+}
diff --git a/ui/app/pages/send/send-content/send-amount-row/tests/send-amount-row-component.test.js b/ui/app/pages/send/send-content/send-amount-row/tests/send-amount-row-component.test.js
new file mode 100644
index 000000000..62e0676db
--- /dev/null
+++ b/ui/app/pages/send/send-content/send-amount-row/tests/send-amount-row-component.test.js
@@ -0,0 +1,187 @@
+import React from 'react'
+import assert from 'assert'
+import { shallow } from 'enzyme'
+import sinon from 'sinon'
+import SendAmountRow from '../send-amount-row.component.js'
+
+import SendRowWrapper from '../../send-row-wrapper/send-row-wrapper.component'
+import AmountMaxButton from '../amount-max-button/amount-max-button.container'
+import UserPreferencedTokenInput from '../../../../../components/app/user-preferenced-token-input'
+
+const propsMethodSpies = {
+  setMaxModeTo: sinon.spy(),
+  updateSendAmount: sinon.spy(),
+  updateSendAmountError: sinon.spy(),
+  updateGas: sinon.spy(),
+  updateGasFeeError: sinon.spy(),
+}
+
+sinon.spy(SendAmountRow.prototype, 'updateAmount')
+sinon.spy(SendAmountRow.prototype, 'validateAmount')
+sinon.spy(SendAmountRow.prototype, 'updateGas')
+
+describe('SendAmountRow Component', function () {
+  let wrapper
+  let instance
+
+  beforeEach(() => {
+    wrapper = shallow(<SendAmountRow
+      amount={'mockAmount'}
+      amountConversionRate={'mockAmountConversionRate'}
+      balance={'mockBalance'}
+      conversionRate={7}
+      convertedCurrency={'mockConvertedCurrency'}
+      gasTotal={'mockGasTotal'}
+      inError={false}
+      primaryCurrency={'mockPrimaryCurrency'}
+      selectedToken={ { address: 'mockTokenAddress' } }
+      setMaxModeTo={propsMethodSpies.setMaxModeTo}
+      tokenBalance={'mockTokenBalance'}
+      updateGasFeeError={propsMethodSpies.updateGasFeeError}
+      updateSendAmount={propsMethodSpies.updateSendAmount}
+      updateSendAmountError={propsMethodSpies.updateSendAmountError}
+      updateGas={propsMethodSpies.updateGas}
+    />, { context: { t: str => str + '_t' } })
+    instance = wrapper.instance()
+  })
+
+  afterEach(() => {
+    propsMethodSpies.setMaxModeTo.resetHistory()
+    propsMethodSpies.updateSendAmount.resetHistory()
+    propsMethodSpies.updateSendAmountError.resetHistory()
+    propsMethodSpies.updateGasFeeError.resetHistory()
+    SendAmountRow.prototype.validateAmount.resetHistory()
+    SendAmountRow.prototype.updateAmount.resetHistory()
+  })
+
+  describe('validateAmount', () => {
+
+    it('should call updateSendAmountError with the correct params', () => {
+      assert.equal(propsMethodSpies.updateSendAmountError.callCount, 0)
+      instance.validateAmount('someAmount')
+      assert.equal(propsMethodSpies.updateSendAmountError.callCount, 1)
+      assert.deepEqual(
+        propsMethodSpies.updateSendAmountError.getCall(0).args,
+        [{
+          amount: 'someAmount',
+          amountConversionRate: 'mockAmountConversionRate',
+          balance: 'mockBalance',
+          conversionRate: 7,
+          gasTotal: 'mockGasTotal',
+          primaryCurrency: 'mockPrimaryCurrency',
+          selectedToken: { address: 'mockTokenAddress' },
+          tokenBalance: 'mockTokenBalance',
+        }]
+      )
+    })
+
+    it('should call updateGasFeeError if selectedToken is truthy', () => {
+      assert.equal(propsMethodSpies.updateGasFeeError.callCount, 0)
+      instance.validateAmount('someAmount')
+      assert.equal(propsMethodSpies.updateGasFeeError.callCount, 1)
+      assert.deepEqual(
+        propsMethodSpies.updateGasFeeError.getCall(0).args,
+        [{
+          amountConversionRate: 'mockAmountConversionRate',
+          balance: 'mockBalance',
+          conversionRate: 7,
+          gasTotal: 'mockGasTotal',
+          primaryCurrency: 'mockPrimaryCurrency',
+          selectedToken: { address: 'mockTokenAddress' },
+          tokenBalance: 'mockTokenBalance',
+        }]
+      )
+    })
+
+    it('should call not updateGasFeeError if selectedToken is falsey', () => {
+      wrapper.setProps({ selectedToken: null })
+      assert.equal(propsMethodSpies.updateGasFeeError.callCount, 0)
+      instance.validateAmount('someAmount')
+      assert.equal(propsMethodSpies.updateGasFeeError.callCount, 0)
+    })
+
+  })
+
+  describe('updateAmount', () => {
+
+    it('should call setMaxModeTo', () => {
+      assert.equal(propsMethodSpies.setMaxModeTo.callCount, 0)
+      instance.updateAmount('someAmount')
+      assert.equal(propsMethodSpies.setMaxModeTo.callCount, 1)
+      assert.deepEqual(
+        propsMethodSpies.setMaxModeTo.getCall(0).args,
+        [false]
+      )
+    })
+
+    it('should call updateSendAmount', () => {
+      assert.equal(propsMethodSpies.updateSendAmount.callCount, 0)
+      instance.updateAmount('someAmount')
+      assert.equal(propsMethodSpies.updateSendAmount.callCount, 1)
+      assert.deepEqual(
+        propsMethodSpies.updateSendAmount.getCall(0).args,
+        ['someAmount']
+      )
+    })
+
+  })
+
+  describe('render', () => {
+    it('should render a SendRowWrapper component', () => {
+      assert.equal(wrapper.find(SendRowWrapper).length, 1)
+    })
+
+    it('should pass the correct props to SendRowWrapper', () => {
+      const {
+        errorType,
+        label,
+        showError,
+      } = wrapper.find(SendRowWrapper).props()
+
+      assert.equal(errorType, 'amount')
+
+      assert.equal(label, 'amount_t:')
+
+      assert.equal(showError, false)
+    })
+
+    it('should render an AmountMaxButton as the first child of the SendRowWrapper', () => {
+      assert(wrapper.find(SendRowWrapper).childAt(0).is(AmountMaxButton))
+    })
+
+    it('should render a UserPreferencedTokenInput as the second child of the SendRowWrapper', () => {
+      assert(wrapper.find(SendRowWrapper).childAt(1).is(UserPreferencedTokenInput))
+    })
+
+    it('should render the UserPreferencedTokenInput with the correct props', () => {
+      const {
+        onBlur,
+        onChange,
+        error,
+        value,
+      } = wrapper.find(SendRowWrapper).childAt(1).props()
+      assert.equal(error, false)
+      assert.equal(value, 'mockAmount')
+      assert.equal(SendAmountRow.prototype.updateGas.callCount, 0)
+      assert.equal(SendAmountRow.prototype.updateAmount.callCount, 0)
+      onBlur('mockNewAmount')
+      assert.equal(SendAmountRow.prototype.updateGas.callCount, 1)
+      assert.deepEqual(
+        SendAmountRow.prototype.updateGas.getCall(0).args,
+        ['mockNewAmount']
+      )
+      assert.equal(SendAmountRow.prototype.updateAmount.callCount, 1)
+      assert.deepEqual(
+        SendAmountRow.prototype.updateAmount.getCall(0).args,
+        ['mockNewAmount']
+      )
+      assert.equal(SendAmountRow.prototype.validateAmount.callCount, 0)
+      onChange('mockNewAmount')
+      assert.equal(SendAmountRow.prototype.validateAmount.callCount, 1)
+      assert.deepEqual(
+        SendAmountRow.prototype.validateAmount.getCall(0).args,
+        ['mockNewAmount']
+      )
+    })
+  })
+})
diff --git a/ui/app/pages/send/send-content/send-amount-row/tests/send-amount-row-container.test.js b/ui/app/pages/send/send-content/send-amount-row/tests/send-amount-row-container.test.js
new file mode 100644
index 000000000..dada1c5e9
--- /dev/null
+++ b/ui/app/pages/send/send-content/send-amount-row/tests/send-amount-row-container.test.js
@@ -0,0 +1,125 @@
+import assert from 'assert'
+import proxyquire from 'proxyquire'
+import sinon from 'sinon'
+
+let mapStateToProps
+let mapDispatchToProps
+
+const actionSpies = {
+  setMaxModeTo: sinon.spy(),
+  updateSendAmount: sinon.spy(),
+}
+const duckActionSpies = {
+  updateSendErrors: sinon.spy(),
+}
+
+proxyquire('../send-amount-row.container.js', {
+  'react-redux': {
+    connect: (ms, md) => {
+      mapStateToProps = ms
+      mapDispatchToProps = md
+      return () => ({})
+    },
+  },
+  '../../send.selectors': {
+    getAmountConversionRate: (s) => `mockAmountConversionRate:${s}`,
+    getConversionRate: (s) => `mockConversionRate:${s}`,
+    getCurrentCurrency: (s) => `mockConvertedCurrency:${s}`,
+    getGasTotal: (s) => `mockGasTotal:${s}`,
+    getPrimaryCurrency: (s) => `mockPrimaryCurrency:${s}`,
+    getSelectedToken: (s) => `mockSelectedToken:${s}`,
+    getSendAmount: (s) => `mockAmount:${s}`,
+    getSendFromBalance: (s) => `mockBalance:${s}`,
+    getTokenBalance: (s) => `mockTokenBalance:${s}`,
+  },
+  './send-amount-row.selectors': { sendAmountIsInError: (s) => `mockInError:${s}` },
+  '../../send.utils': {
+    getAmountErrorObject: (mockDataObject) => ({ ...mockDataObject, mockChange: true }),
+    getGasFeeErrorObject: (mockDataObject) => ({ ...mockDataObject, mockGasFeeErrorChange: true }),
+  },
+  '../../../../store/actions': actionSpies,
+  '../../../../ducks/send/send.duck': duckActionSpies,
+})
+
+describe('send-amount-row container', () => {
+
+  describe('mapStateToProps()', () => {
+
+    it('should map the correct properties to props', () => {
+      assert.deepEqual(mapStateToProps('mockState'), {
+        amount: 'mockAmount:mockState',
+        amountConversionRate: 'mockAmountConversionRate:mockState',
+        balance: 'mockBalance:mockState',
+        conversionRate: 'mockConversionRate:mockState',
+        convertedCurrency: 'mockConvertedCurrency:mockState',
+        gasTotal: 'mockGasTotal:mockState',
+        inError: 'mockInError:mockState',
+        primaryCurrency: 'mockPrimaryCurrency:mockState',
+        selectedToken: 'mockSelectedToken:mockState',
+        tokenBalance: 'mockTokenBalance:mockState',
+      })
+    })
+
+  })
+
+  describe('mapDispatchToProps()', () => {
+    let dispatchSpy
+    let mapDispatchToPropsObject
+
+    beforeEach(() => {
+      dispatchSpy = sinon.spy()
+      mapDispatchToPropsObject = mapDispatchToProps(dispatchSpy)
+      duckActionSpies.updateSendErrors.resetHistory()
+    })
+
+    describe('setMaxModeTo()', () => {
+      it('should dispatch an action', () => {
+        mapDispatchToPropsObject.setMaxModeTo('mockBool')
+        assert(dispatchSpy.calledOnce)
+        assert(actionSpies.setMaxModeTo.calledOnce)
+        assert.equal(
+          actionSpies.setMaxModeTo.getCall(0).args[0],
+          'mockBool'
+        )
+      })
+    })
+
+    describe('updateSendAmount()', () => {
+      it('should dispatch an action', () => {
+        mapDispatchToPropsObject.updateSendAmount('mockAmount')
+        assert(dispatchSpy.calledOnce)
+        assert(actionSpies.updateSendAmount.calledOnce)
+        assert.equal(
+          actionSpies.updateSendAmount.getCall(0).args[0],
+          'mockAmount'
+        )
+      })
+    })
+
+    describe('updateGasFeeError()', () => {
+      it('should dispatch an action', () => {
+        mapDispatchToPropsObject.updateGasFeeError({ some: 'data' })
+        assert(dispatchSpy.calledOnce)
+        assert(duckActionSpies.updateSendErrors.calledOnce)
+        assert.deepEqual(
+          duckActionSpies.updateSendErrors.getCall(0).args[0],
+          { some: 'data', mockGasFeeErrorChange: true }
+        )
+      })
+    })
+
+    describe('updateSendAmountError()', () => {
+      it('should dispatch an action', () => {
+        mapDispatchToPropsObject.updateSendAmountError({ some: 'data' })
+        assert(dispatchSpy.calledOnce)
+        assert(duckActionSpies.updateSendErrors.calledOnce)
+        assert.deepEqual(
+          duckActionSpies.updateSendErrors.getCall(0).args[0],
+          { some: 'data', mockChange: true }
+        )
+      })
+    })
+
+  })
+
+})
diff --git a/ui/app/pages/send/send-content/send-amount-row/tests/send-amount-row-selectors.test.js b/ui/app/pages/send/send-content/send-amount-row/tests/send-amount-row-selectors.test.js
new file mode 100644
index 000000000..4672cb8a7
--- /dev/null
+++ b/ui/app/pages/send/send-content/send-amount-row/tests/send-amount-row-selectors.test.js
@@ -0,0 +1,34 @@
+import assert from 'assert'
+import {
+  sendAmountIsInError,
+} from '../send-amount-row.selectors.js'
+
+describe('send-amount-row selectors', () => {
+
+  describe('sendAmountIsInError()', () => {
+    it('should return true if send.errors.amount is truthy', () => {
+      const state = {
+        send: {
+          errors: {
+            amount: 'abc',
+          },
+        },
+      }
+
+      assert.equal(sendAmountIsInError(state), true)
+    })
+
+    it('should return false if send.errors.amount is falsy', () => {
+      const state = {
+        send: {
+          errors: {
+            amount: null,
+          },
+        },
+      }
+
+      assert.equal(sendAmountIsInError(state), false)
+    })
+  })
+
+})