1 files changed, 121 insertions, 0 deletions
diff --git a/ui/app/components/send_/send-content/send-from-row/tests/send-from-row-component.test.js b/ui/app/components/send_/send-content/send-from-row/tests/send-from-row-component.test.js
new file mode 100644
index 000000000..9ba8d1739
--- /dev/null
+++ b/ui/app/components/send_/send-content/send-from-row/tests/send-from-row-component.test.js
@@ -0,0 +1,121 @@
+import React from 'react'
+import assert from 'assert'
+import { shallow } from 'enzyme'
+import sinon from 'sinon'
+import SendFromRow from '../send-from-row.component.js'
+
+import SendRowWrapper from '../../send-row-wrapper/send-row-wrapper.component'
+import FromDropdown from '../from-dropdown/from-dropdown.component'
+
+const propsMethodSpies = {
+  closeFromDropdown: sinon.spy(),
+  openFromDropdown: sinon.spy(),
+  updateSendFrom: sinon.spy(),
+  setSendTokenBalance: sinon.spy(),
+}
+
+sinon.spy(SendFromRow.prototype, 'handleFromChange')
+
+describe('SendFromRow Component', function () {
+  let wrapper
+  let instance
+
+  beforeEach(() => {
+    wrapper = shallow(<SendFromRow
+      closeFromDropdown={propsMethodSpies.closeFromDropdown}
+      conversionRate={15}
+      from={ { address: 'mockAddress' } }
+      fromAccounts={['mockAccount']}
+      fromDropdownOpen={false}
+      openFromDropdown={propsMethodSpies.openFromDropdown}
+      setSendTokenBalance={propsMethodSpies.setSendTokenBalance}
+      tokenContract={null}
+      updateSendFrom={propsMethodSpies.updateSendFrom}
+    />, { context: { t: str => str + '_t' } })
+    instance = wrapper.instance()
+  })
+
+  afterEach(() => {
+    propsMethodSpies.closeFromDropdown.resetHistory()
+    propsMethodSpies.openFromDropdown.resetHistory()
+    propsMethodSpies.updateSendFrom.resetHistory()
+    propsMethodSpies.setSendTokenBalance.resetHistory()
+    SendFromRow.prototype.handleFromChange.resetHistory()
+  })
+
+  describe('handleFromChange', () => {
+
+    it('should call updateSendFrom', () => {
+      assert.equal(propsMethodSpies.updateSendFrom.callCount, 0)
+      instance.handleFromChange('mockFrom')
+      assert.equal(propsMethodSpies.updateSendFrom.callCount, 1)
+      assert.deepEqual(
+        propsMethodSpies.updateSendFrom.getCall(0).args,
+        ['mockFrom']
+      )
+    })
+
+    it('should call tokenContract.balanceOf and setSendTokenBalance if tokenContract is defined', async () => {
+      wrapper.setProps({
+        tokenContract: {
+          balanceOf: () => new Promise((resolve) => resolve('mockUsersToken')),
+        },
+      })
+      assert.equal(propsMethodSpies.setSendTokenBalance.callCount, 0)
+      await instance.handleFromChange('mockFrom')
+      assert.equal(propsMethodSpies.setSendTokenBalance.callCount, 1)
+      assert.deepEqual(
+        propsMethodSpies.setSendTokenBalance.getCall(0).args,
+        ['mockUsersToken']
+      )
+    })
+
+  })
+
+  describe('render', () => {
+    it('should render a SendRowWrapper component', () => {
+      assert.equal(wrapper.find(SendRowWrapper).length, 1)
+    })
+
+    it('should pass the correct props to SendRowWrapper', () => {
+      const {
+        label,
+      } = wrapper.find(SendRowWrapper).props()
+
+      assert.equal(label, 'from_t:')
+    })
+
+    it('should render an FromDropdown as a child of the SendRowWrapper', () => {
+      assert(wrapper.find(SendRowWrapper).childAt(0).is(FromDropdown))
+    })
+
+    it('should render the FromDropdown with the correct props', () => {
+      const {
+        accounts,
+        closeDropdown,
+        conversionRate,
+        dropdownOpen,
+        onSelect,
+        openDropdown,
+        selectedAccount,
+      } = wrapper.find(SendRowWrapper).childAt(0).props()
+      assert.deepEqual(accounts, ['mockAccount'])
+      assert.equal(dropdownOpen, false)
+      assert.equal(conversionRate, 15)
+      assert.deepEqual(selectedAccount, { address: 'mockAddress' })
+      assert.equal(propsMethodSpies.closeFromDropdown.callCount, 0)
+      closeDropdown()
+      assert.equal(propsMethodSpies.closeFromDropdown.callCount, 1)
+      assert.equal(propsMethodSpies.openFromDropdown.callCount, 0)
+      openDropdown()
+      assert.equal(propsMethodSpies.openFromDropdown.callCount, 1)
+      assert.equal(SendFromRow.prototype.handleFromChange.callCount, 0)
+      onSelect('mockNewFrom')
+      assert.equal(SendFromRow.prototype.handleFromChange.callCount, 1)
+      assert.deepEqual(
+        SendFromRow.prototype.handleFromChange.getCall(0).args,
+        ['mockNewFrom']
+      )
+    })
+  })
+})