refactor customer unit test

tests/unit/exam/customer.spec.ts

@@ -1,122 +1,107 @@
+import DB from '../../../data/db'
 import CustomerService from '../../../src/services/customer'
-import { cursorTo } from 'readline'
+import Faker from 'faker'
+import { copyFileSync } from 'fs'
+import { getDefaultWatermarks } from 'istanbul-lib-report'
 
+const getCpf = () => Faker.random.number({ 'min': 100000000,'max': 999999999 }) + '-' + Faker.random.number({ 'min': 10, 'max': 99 })
 
-test('should save a customer to the database by service', () => {
-
-    const customer = {
-        name: 'Luiz Filho',
-        cpf: '464444466-44'
+const fullName = () => Faker.name.firstName + ' ' + Faker.name.lastName
+
+const getDate = () => Faker.date.between('1920-01-01', '2019-09-01')
+
+let customer = {
+    cpf: '',
+    name: '',
+    dateOfBirth: new Date()
+}
+let service = new CustomerService()
+
+beforeEach(() => {
+    DB.resetForUnitTest()
+    customer = {
+        name: fullName(),
+        cpf: getCpf(),
+        dateOfBirth: getDate()
     }
+})
 
-    const service = new CustomerService()
+test('should save a customer to the database by service', () => {
     const customerStored = service.save(customer)
     expect(customer).toEqual(customerStored.data)
 })
 
 test('should not save a customer', () => {
-
-    const customer = {
-        name: 'Luiz Carlos',
-        cpf: '888555333-44'
-    }
-
-    const service = new CustomerService()
     service.save(customer)
-
     const otherService = new CustomerService()
-    const responseOtherService = otherService.save({ ...customer, name: 'João Silva' })
-
+    const responseOtherService = otherService.save({ ...customer, name: fullName() })
     expect(responseOtherService.success).toEqual(false)
 })
 
 test('should update a customer to the database by service', () => {
-
-    let customer = {
-        name: 'Nathalia Souza',
-        cpf: '961965000-44'
-    }
-
-    const service = new CustomerService()
     service.save(customer)
-    customer = { ...customer, name: 'Geisiane Pereira'}
+    customer = { ...customer, name: Faker.name.firstName + ' ' + fullName() }
     const customerUpdated = service.update(customer)
-
     expect(customerUpdated.data).toEqual(customer)
 })
 
 test('should not update a customer', () => {
-
-    let customer = {
-        name: 'Hamilton Vicente',
-        cpf: '464444466-44'
-    }
-
-    const service = new CustomerService()
     service.save(customer)
-    customer = { cpf: '333161615-46', name: 'João Rodrigues'}
+    customer = {
+        cpf: getCpf(),
+        name: fullName(),
+        dateOfBirth: getDate()
+    }
     const customerUpdated = service.update(customer)
-
     expect(customerUpdated.success).toEqual(false)
 })
 
 test('should remove a customer to the database by service', () => {
-
-    let customer = {
-        name: 'Fernanda Pereira',
-        cpf: '464999966-44'
-    }
-
-    const service = new CustomerService()
     service.save(customer)
     const customerRemoved = service.remove(customer.cpf)
-
     expect(customerRemoved.success).toEqual(true)
     expect(customerRemoved.data).toEqual(customer)
 })
 
 test('should not delete a customer', () => {
-
-    let customer = {
-        name: 'Luiz Filho',
-        cpf: '464444466-44'
-    }
-
-    const service = new CustomerService()
     service.save(customer)
-    customer = { ...customer, cpf: '111222333-44' }
+    customer = {
+        ...customer,
+        cpf: getCpf()
+     }
     const customerRemoved = service.remove(customer.cpf)
 
     expect(customerRemoved.success).toEqual(false)
 })
 
 test('should be returned a customer by cpf', () => {
-
-    const customer = {
-        name: 'Giovanni Santos',
-        cpf: '101010101-10'
-    }
-
-    const service = new CustomerService()
     service.save(customer)
     const customerSeached = service.find(customer.cpf)
-
     expect(customerSeached.success).toEqual(true)
     expect(customerSeached.data).toEqual(customer)
 })
 
 test('should not return a customer by cpf', () => {
-
-    const customer = {
-        name: 'Giovanni Santos',
-        cpf: '101010101-10'
-    }
-
-    const service = new CustomerService()
     service.save(customer)
-    customer.cpf = '121121121-12'
+    customer.cpf = getCpf()
     const customerSeached = service.find(customer.cpf)
 
     expect(customerSeached.success).toEqual(false)
     expect(customerSeached.data).toEqual(null)
 })
+
+test('should returned all customers', () => {
+    const service = new CustomerService()
+    for(let index = 0; index < 10; index++) {
+        let customer = {
+            cpf: getCpf(),
+            name: fullName()
+        }
+
+        service.save(customer)
+    }
+
+    let customers = service.list()
+    expect(customers.data.length).toEqual(10)
+
+})