Python Django表单测试文件上载，错误显示空字段

我的测试表单有问题，即使我尝试了很多方法，它也不会接受文件上传，它只是返回文件上传字段不能为空的错误：

AssertionError: False is not true : <ul class="errorlist"><li>file<ul class="errorlist"><li>This field is required.</li></ul></li></ul>

甚至尝试和：

response = client.post(placements.get_absolute_url,data=data_set, content_type='multipart/form-data')

但仍然不起作用

这是forms.py

class ApplicantForm(forms.ModelForm):
    name = forms.CharField(widget=forms.TextInput(attrs={'class': 'form-control form-control-lg'}))
    surname = forms.CharField(widget=forms.TextInput(attrs={'class': 'form-control form-control-lg'}))
    phone_number = forms.CharField(widget=forms.TextInput(attrs={'class': 'form-control form-control-lg'}))
    city = forms.CharField(widget=forms.TextInput(attrs={'class': 'form-control form-control-lg'}))
    country = forms.CharField(widget=forms.TextInput(attrs={'class': 'form-control form-control-lg'}))
    message = forms.CharField(widget=forms.Textarea(attrs={'class': 'form-control form-control-lg'}))
    file = forms.FileField(widget=forms.FileInput())

    class Meta:
        model = Candidate
        exclude = ['position', 'seen']

models.py 这是在表单中填充数据时需要保存的模型

class Applicant(models.Model):
    date = models.DateTimeField(auto_now_add=True)
    name = models.CharField(max_length=100)
    surname = models.CharField(max_length=100)
    phone_number = models.CharField(max_length=100)
    city = models.CharField(max_length=100)
    country = models.CharField(max_length=100)
    position = models.ForeignKey(
        Position, on_delete=models.CASCADE,
        related_name='applicants')
    cover_letter = models.TextField()
    file = models.FileField(upload_to='files/applications')
    seen = models.BooleanField(default=False, editable=False)

    ADMIN_DISPLAY = ['get_name', 'position', 'city', 'country', 'get_file', 'date']

    def get_name(self):
        return "%s %s" % (self.name, self.surname)
    get_name.short_description = 'Name'

    def get_file(self):
        return '<a href="%s%s" target="_blank">Download</a>' % (
            settings.BASE_DOMAIN_URL, self.file.url)
    get_file.allow_tags = True
    get_file.short_description = 'Download file'

---

您似乎没有正确地传入文件。此外，您似乎正在尝试访问表单中未定义的

数据
关键字参数。试试这个：记住从django.core.files.uploadedfile导入'SimpleUploadeFile'

  from django.core.files.uploadedfile import SimpleUploadedFile

  def test_applicant_form(self):
    placements = Position.objects.filter(published=True)[0]
    with open('root/static/applications/file.pdf', 'rb') as file:
      document = SimpleUploadedFile(file.name, file.read(), content_type='application/pdf')
    data_set = {'name': 'Caleb',
    'surname':'Dvorszky',
    'phone_number': '+1963124575',
    'city': 'Kansas City',
    'country':'United States',
    'message': 'Would like to be there',
    }
    form = ApplicantForm(data_set, {'file': document})
    self.assertTrue(form.is_valid(), form.errors)

请看这个以便进一步阅读。你也可以看看我jos用这个断言又犯了同样的错误错误。错误：False不是真的：
文件
这个字段是必需的。
@havoc我编辑了答案以上传测试图像文件。它在我本地的机器上工作。将content_type关键字参数更改为“application/pdf”
if request.method == 'POST':
        form = ApplicantForm(request.POST, request.FILES)
        if form.is_valid():
            applicant = form.save(commit=False)
            applicant.position = placement
            applicant.save()
            notification(applicant)
            messages.info(request, 'We received your application. See you soon!')
            return redirect('postions:position-post', placement.slug)
    form = ApplicantForm()

  from django.core.files.uploadedfile import SimpleUploadedFile

  def test_applicant_form(self):
    placements = Position.objects.filter(published=True)[0]
    with open('root/static/applications/file.pdf', 'rb') as file:
      document = SimpleUploadedFile(file.name, file.read(), content_type='application/pdf')
    data_set = {'name': 'Caleb',
    'surname':'Dvorszky',
    'phone_number': '+1963124575',
    'city': 'Kansas City',
    'country':'United States',
    'message': 'Would like to be there',
    }
    form = ApplicantForm(data_set, {'file': document})
    self.assertTrue(form.is_valid(), form.errors)