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# -*- coding: utf-8 -*-
from io import StringIO
from django.test import TestCase
from django.db import models
from django.core.management import CommandError, call_command
class DescribeFormExceptionsTests(TestCase):
"""Tests for describe_form command exceptions."""
def test_should_raise_CommandError_if_invalid_arg(self):
with self.assertRaisesRegex(
CommandError, "Need application and model name in the form: appname.model"
):
call_command("describe_form", "testapp")
class DescribeFormTests(TestCase):
"""Tests for describe_form command."""
def setUp(self):
self.out = StringIO()
class BaseModel(models.Model):
title = models.CharField(max_length=50)
body = models.TextField()
class Meta:
app_label = "testapp"
class NonEditableModel(models.Model):
created_at = models.DateTimeField(auto_now_add=True)
title = models.CharField(max_length=50)
class Meta:
app_label = "testapp"
def test_should_print_form_definition_for_TestModel(self):
expected_result = """from django import forms
from testapp.models import BaseModel
class BaseModelForm(forms.Form):
title = forms.CharField(label='Title', max_length=50)
body = forms.CharField(label='Body')"""
call_command("describe_form", "testapp.BaseModel", stdout=self.out)
self.assertIn(expected_result, self.out.getvalue())
def test_should_print_form_definition_for_TestModel_with_non_editable_field(self):
expected_result = """from django import forms
from testapp.models import NonEditableModel
class NonEditableModelForm(forms.Form):
title = forms.CharField(label='Title', max_length=50)"""
call_command("describe_form", "testapp.NonEditableModel", stdout=self.out)
self.assertIn(expected_result, self.out.getvalue())
def test_should_print_form_with_fields_for_TestModel(self):
not_expected = """body = forms.CharField(label='Body')"""
call_command(
"describe_form", "testapp.BaseModel", "--fields=title", stdout=self.out
)
self.assertNotIn(not_expected, self.out.getvalue())
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