Question

我正尝试用开玩笑的方法来测试tryCatch代码，但仍会不断出错，目前这是我所尝试的

student.js

async checkStudentExist(studentName) {
        try {
            const studentExist = await this.StudentRepository.getOne({name: studentName})
            if (studentExist) {
                throw new Error(`Student already exist with the name: ${studentName}`)
            }
            return studentExist
        } catch (error) {
            throw error   
        }
    }

student.test.js

it('should throw an error if the input name already exist in database', async () => {
    mockGetOne.mockReturnValue(Promise.resolve(expectedOrganization))
    await studentService.checkStudentExist('john doe')
    expect(mockGetOne).toHaveBeenCalledWith({name: 'sample org'})
    expect(studentService.checkStudentExist('john doe')).resolves.toThrowError(new Error(`Organization already exist with the name: john doe`))
})

这是我遇到的错误

 FAIL  test/specs/services/student_service.test.js
  ● Console

    console.log src/services/student_service.js:53
      111
    console.log src/services/student_service.js:53
      111

  ● Check if Student exist › should throw an error if the input name already exist in database

    Student already exist with the name: john doe

      55 |             const studentExist = await this.StudentRepository.getOne({name: studentName})
      56 |             if (studentExist) {
    > 57 |                 throw new Error(`Student already exist with the name: ${studentName}`)
         |                       ^
      58 |             }
      59 |             return studentExist
      60 |         } catch (error) {

      at StudentService.checkStudentExist (src/services/student_service.js:57:23)

tryCatch使用Jest进行单元测试

0 个答案: