message: setting eslint-env jest
diff: +/* eslint-env jest */
  +
  import { CURRENCIES, AVAILABILITY } from './pricing';
  import {
  hitsCost,
  @@ -6,7 +8,7 @@ import {
  devCost,
  hitTier,
  ICustomer,
  - customerProjectsDataReducer
  + customerProjectsDataReducer,
  } from './billingCalculations';
  interface IMockDataType {
  @@ -30,7 +32,7 @@ const mockData: IMockDataType = {
  availability: AVAILABILITY.standard,
  storageDays: 197,
  prodHours: 744,
  - devHours: 0
  + devHours: 0,
  },
  {
  name: 'v-web',
  @@ -40,9 +42,9 @@ const mockData: IMockDataType = {
  availability: AVAILABILITY.standard,
  storageDays: 0,
  prodHours: 744,
  - devHours: 744
  - }
  - ]
  + devHours: 744,
  + },
  + ],
  },
  {
  name: 'SV',
  @@ -57,7 +59,7 @@ const mockData: IMockDataType = {
  availability: AVAILABILITY.high,
  storageDays: 784.064378,
  prodHours: 744,
  - devHours: 1488
  + devHours: 1488,
  },
  {
  name: 's_m_com',
  @@ -67,7 +69,7 @@ const mockData: IMockDataType = {
  availability: AVAILABILITY.high,
  storageDays: 23.725226,
  prodHours: 744,
  - devHours: 744
  + devHours: 744,
  },
  {
  name: 'd8beta_s_com',
  @@ -77,19 +79,19 @@ const mockData: IMockDataType = {
  availability: AVAILABILITY.high,
  storageDays: 0,
  prodHours: 744,
  - devHours: 1488
  - }
  - ]
  - }
  - ]
  + devHours: 1488,
  + },
  + ],
  + },
  + ],
  };
  const { projects: p1 } = mockData.customers[0];
  const { projects: p2 } = mockData.customers[1];
  // Unit Under Test
  -describe('Billing Calculations', function() {
  - describe('Hit Tier', function() {
  +describe('Billing Calculations', () => {
  + describe('Hit Tier', () => {
  // scenarios and expectation
  it('When hits are between { MIN: 300_001, MAX: 2_500_000 }, then the "hitTier should be 1', () => {
  // Arrange
  