tests: add mock_api tests

app/javascript/test_support/mock_api.spec.js

@@ -0,0 +1,57 @@
+import mockApi from './mock_api'
+
+describe('mockApi', () => {
+  let api = mockApi()
+
+  const barcode = 'DN12345'
+  const mockTube = { type: 'tube', id: 123 }
+  api.mockGet(`labware/${barcode}`, {}, { data: mockTube })
+  api.mockGet('labware', { filter: { barcode: barcode } }, { data: [mockTube] })
+  api.mockFail(
+    'server-errors/500',
+    {},
+    {
+      errors: [
+        {
+          detail: 'A server error occurred',
+          code: 500,
+          status: 500,
+        },
+      ],
+    }
+  )
+
+  it('should make a get request and return a single tube', async () => {
+    let response = await api.devour.one('labware', barcode).get()
+
+    expect(response.data).toEqual(mockTube)
+    expect(response.errors).toEqual(undefined)
+    expect(response.meta).toEqual(undefined)
+    expect(response.links).toEqual(undefined)
+  })
+
+  it('should make a findall request and return an array of tubes', async () => {
+    let response = await api.devour.findAll('labware', {
+      filter: { barcode: barcode },
+    })
+
+    expect(response.data).toEqual([mockTube])
+    expect(response.errors).toEqual(undefined)
+    expect(response.meta).toEqual(undefined)
+    expect(response.links).toEqual(undefined)
+  })
+
+  it('should make a failed request and return an error', async () => {
+    let response = await api.devour
+      .one('server-errors', '500')
+      .get()
+      .catch((err) => {
+        return err
+      })
+
+    expect(response.data).toEqual(undefined)
+    expect(response.errors).toEqual([{ code: 500, detail: 'A server error occurred', status: 500 }])
+    expect(response.meta).toEqual(undefined)
+    expect(response.links).toEqual(undefined)
+  })
+})