Add tests for StatsTabe component

2022-09-20 11:58:34 +02:00
parent e2e320927b
commit be0c11abfe
2 changed files with 486 additions and 0 deletions
@@ -0,0 +1,53 @@
+import React from 'react'
+import { render } from '@testing-library/react-native'
+
+import StatsTable from '../../../components/common/StatsTable'
+
+jest.mock('react-i18next', () => ({
+  useTranslation: () => ({
+    t: (str, options) => str + (options ? JSON.stringify(options) : ''),
+  }),
+}))
+
+const mockGetStats = jest
+  .fn()
+  .mockImplementationOnce(() => [
+    { date: '2022-07-01', cycleLength: 31, bleedingLength: 5 },
+    { date: '2022-06-01', cycleLength: 31, bleedingLength: 5 },
+  ])
+  .mockImplementationOnce(() => [])
+  .mockImplementationOnce(() => null)
+  .mockImplementationOnce(() => undefined)
+
+jest.mock('../../../lib/cycle', () => ({
+  __esModule: true,
+  default: () => ({
+    getStats: mockGetStats,
+  }),
+}))
+
+describe('StatsTable screen', () => {
+  test('when provided correct data set, renders it', async () => {
+    const { toJSON } = render(<StatsTable onClose={jest.fn()} />)
+
+    expect(toJSON()).toMatchSnapshot()
+  })
+
+  test('when provided no data, renders nothing', async () => {
+    const { toJSON } = render(<StatsTable onClose={jest.fn()} />)
+
+    expect(toJSON()).toMatchSnapshot()
+  })
+
+  test('when provided null, renders nothing', async () => {
+    const { toJSON } = render(<StatsTable onClose={jest.fn()} />)
+
+    expect(toJSON()).toMatchSnapshot()
+  })
+
+  test('when provided undefined, renders nothing', async () => {
+    const { toJSON } = render(<StatsTable onClose={jest.fn()} />)
+
+    expect(toJSON()).toMatchSnapshot()
+  })
+})