测试带有 HTTP404 异常的视图函数答案

【问题标题】：Test a view function with a HTTP404 exception测试带有 HTTP404 异常的视图函数
【发布时间】：2021-07-28 23:55:06
【问题描述】：

我正在尝试测试此视图，以确保在 RedirectUrl 模型类不存在时它返回 HTTP404，如果存在则重定向到 destination_url。它还应该存储网址。只是为了上下文，应用程序会收到一个这样的 url

www.xyz.com/redirect/1?whatsappid=12345

元刷新到

www.xyz.com/confirmredirect/1?whatsappid=12345

最后将查询参数传递给另一个站点

https://test_check.co.za/?whatsappid=12345

在管理面板中，您可以看到创建了多少个链接以及该网址被点击了多少次。

#Views.py
def clickActivity(request: HttpRequest, pk: int, whatsappid: int) -> HttpResponse:
    try:
        redirect_url = RedirectUrl.objects.get(id=pk)
    except RedirectUrl.DoesNotExist:
        raise Http404("No RedirectUrl matches the given query.")
    store_url_entry = RedirectUrlsEntry(url=redirect_url)
    store_url_entry.save()
    destination_url = f"{redirect_url.test_check_url}" f"/?whatsappid={whatsappid}"
    return HttpResponseRedirect(destination_url)

#models.py
class RedirectUrl(models.Model):

    url = models.URLField(
        max_length=255,
        blank=True,
        null=True,
        default="https://hub.momconnect.za/confirmredirect",
    )
    content = models.TextField(
        default="This entry has no copy",
        help_text="The content of the mesage that this link was sent in",
    )
    symptom_check_url = models.URLField(
        max_length=200, null=False, blank=False, default="http://symptomcheck.co.za"
    )
    parameter = models.IntegerField(null=True, blank=True)
    time_stamp = models.DateTimeField(auto_now=True)

    def my_counter(self):
        total_number = RedirectUrlsEntry.objects.filter(url=self.id).count()
        return total_number

    def __str__(self):
        if self.url:
            return (
                f"{self.parameter}: {self.url}/{self.id} \n"
                f"| Clicked {self.my_counter()} times | Content: {self.content}"
            )

class RedirectUrlsEntry(models.Model):
    url = models.ForeignKey(
        RedirectUrl, on_delete=models.CASCADE, blank=True, null=True
    )
    time_stamp = models.DateTimeField(auto_now=True)

    def __str__(self):
        if self.url:
            return (
                f"{self.url.url} with ID {self.url.id} \n"
                f"was visited at {self.time_stamp}"
            )

#Urls.py
urlpatterns = [
    path(
        "confirmredirect/<int:pk>/<int:whatsappid>",
        views.clickActivity,
        name="ada_hook_redirect",
    ),
    path("redirect/<int:pk>", views.default_page, name="ada_hook"),
]

我能够测试是否使用了正确的模板，但我正在为这个测试而苦苦挣扎。我是 Django 新手。谢谢

【问题讨论】：

标签： python django templates django-models django-templates

【解决方案1】：

假设您正在尝试编写测试函数

在这种情况下，您可以创建如下内容：

class MyTestCase(TestCase):
  
    def test_redirecting_url(self):
        # Use a test client
        client = Client()
        # tell it to go to the url
        r = client.get(reverse('ada_hook', args=[pk]))
        # assert that it redirected correctly
        self.AssertRedirects(r, expected_url)
        # if checking the status 
        assert r.status_code == 404

详细了解我在这里的内容将对测试有很大帮助

【讨论】：