First unit test

Author: davellanedam

app/middleware/utils/handleError.test.js

@@ -0,0 +1,38 @@
+const { handleError } = require('./handleError')
+
+const mockResponse = () => {
+  const res = {}
+  res.status = jest.fn().mockReturnValueOnce(res)
+  res.json = jest.fn().mockReturnValueOnce(res)
+  return res
+}
+
+const err = {
+  message: 'error',
+  code: 123
+}
+
+describe('handleError()', () => {
+  it('should send the error object with the code and message provided and print the error code, message in development mode', async () => {
+    process.env.NODE_ENV = 'development'
+
+    const res = mockResponse()
+
+    console.log = jest.fn()
+
+    await handleError(res, err)
+
+    expect(console.log).toHaveBeenCalledWith({
+      code: 123,
+      message: 'error'
+    })
+
+    expect(res.status).toHaveBeenCalledWith(123)
+
+    expect(res.json).toHaveBeenCalledWith({
+      errors: {
+        msg: 'error'
+      }
+    })
+  })
+})