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erpnew/stateflow/tests/test_step_back_api.py

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Python

"""
测试 step_back API 端点
"""
from django.test import TestCase
from rest_framework.test import APIClient
from rest_framework import status
from django.contrib.auth import get_user_model
from stateflow import models
User = get_user_model()
class StepBackAPITestCase(TestCase):
"""测试单步回退 API"""
def setUp(self):
self.client = APIClient()
# 创建用户
self.user = User.objects.create_user(username='testuser', password='testpass')
self.client.force_authenticate(user=self.user)
# 创建状态
self.state1 = models.State.objects.create(name='状态1')
self.state2 = models.State.objects.create(name='状态2')
self.state3 = models.State.objects.create(name='状态3')
# 创建流程
self.process = models.Process.objects.create(name='测试流程')
models.ProcessNode.objects.create(process=self.process, state=self.state1, order=0)
models.ProcessNode.objects.create(process=self.process, state=self.state2, order=1)
models.ProcessNode.objects.create(process=self.process, state=self.state3, order=2)
# 创建业务对象
self.business_object = models.BusinessObject.objects.create(
name='测试对象',
process=self.process
)
def test_step_back_api_success(self):
"""测试回退 API 成功"""
# 先推进两步
self.client.post(f'/api/v1/stateflow/business-objects/{self.business_object.id}/advance/')
self.client.post(f'/api/v1/stateflow/business-objects/{self.business_object.id}/advance/')
# 回退一步
response = self.client.post(f'/api/v1/stateflow/business-objects/{self.business_object.id}/step_back/')
self.assertEqual(response.status_code, status.HTTP_200_OK)
self.assertTrue(response.data['success'])
self.assertIn('状态2', response.data['message'])
self.assertIn('business_object', response.data)
def test_step_back_api_not_started(self):
"""测试未开始状态回退失败"""
response = self.client.post(f'/api/v1/stateflow/business-objects/{self.business_object.id}/step_back/')
self.assertEqual(response.status_code, status.HTTP_400_BAD_REQUEST)
self.assertFalse(response.data['success'])
self.assertIn('没有任何状态流转记录', response.data['message'])
def test_advance_step_back_advance_cycle(self):
"""测试前进-回退-前进循环"""
# 前进
response1 = self.client.post(f'/api/v1/stateflow/business-objects/{self.business_object.id}/advance/')
self.assertEqual(response1.status_code, status.HTTP_200_OK)
# 回退
response2 = self.client.post(f'/api/v1/stateflow/business-objects/{self.business_object.id}/step_back/')
self.assertEqual(response2.status_code, status.HTTP_200_OK)
# 再前进
response3 = self.client.post(f'/api/v1/stateflow/business-objects/{self.business_object.id}/advance/')
self.assertEqual(response3.status_code, status.HTTP_200_OK)
# 验证数据库中有已撤销的记录
cancelled_count = models.StateFlowRecord.objects.filter(
business_object=self.business_object,
is_cancelled=True
).count()
self.assertEqual(cancelled_count, 1)