2
0
mirror of https://github.com/inventree/InvenTree.git synced 2025-04-28 19:46:46 +00:00
InvenTree/InvenTree/part/test_api.py
Oliver 648faf4ed2
Reference fields (#3267)
* Adds a configurable 'reference pattern' to the IndexingReferenceMixin class

* Expand tests for reference_pattern validator:

- Prevent inclusion of illegal characters
- Prevent multiple groups of hash (#) characters
- Add unit tests

* Validator now checks for valid strftime formatter

* Adds build order reference pattern

* Adds function for creating a valid regex from the supplied pattern

- More unit tests
- Use it to validate BuildOrder reference field

* Refactoring the whole thing again - try using python string.format

* remove datetime-matcher from requirements.txt

* Add some more formatting helper functions

- Construct a regular expression from a format string
- Extract named values from a string, based on a format string

* Fix validator for build order reference field

* Adding unit tests for the new format string functionality

* Adds validation for reference fields

* Require the 'ref' format key as part of a valid reference pattern

* Extend format extraction to allow specification of integer groups

* Remove unused import

* Fix requirements

* Add method for generating the 'next' reference field for a model

* Fix function for generating next BuildOrder reference value

- A function is required as class methods cannot be used
- Simply wraps the existing class method

* Remove BUILDORDER_REFERENCE_REGEX setting

* Add unit test for build order reference field validation

* Adds unit testing for extracting integer values from a reference field

* Fix bugs from previous commit

* Add unit test for generation of default build order reference

* Add data migration for BuildOrder model

- Update reference field with old prefix
- Construct new pattern based on old prefix

* Adds unit test for data migration

- Check that the BuildOrder reference field is updated as expected

* Remove 'BUILDORDER_REFERENCE_PREFIX' setting

* Adds new setting for SalesOrder reference pattern

* Update method by which next reference value is generated

* Improved error handling in api_tester code

* Improve automated generation of order reference fields

- Handle potential errors
- Return previous reference if something goes wrong

* SalesOrder reference has now been updated also

- New reference pattern setting
- Updated default and validator for reference field
- Updated serializer and API
- Added unit tests

* Migrate the "PurchaseOrder" reference field to the new system

* Data migration for SalesOrder and PurchaseOrder reference fields

* Remove PURCHASEORDER_REFERENCE_PREFIX

* Remove references to SALESORDER_REFERENCE_PREFIX

* Re-add maximum value validation

* Bug fixes

* Improve algorithm for generating new reference

- Handle case where most recent reference does not conform to the reference pattern

* Fixes for 'order' unit tests

* Unit test fixes for order app

* More unit test fixes

* More unit test fixing

* Revert behaviour for "extract_int" clipping function

* Unit test value fix

* Prevent build order notification if we are importing records
2022-07-11 00:01:46 +10:00

2135 lines
62 KiB
Python

"""Unit tests for the various part API endpoints"""
from django.urls import reverse
import PIL
from rest_framework import status
from rest_framework.test import APIClient
import build.models
import order.models
from common.models import InvenTreeSetting
from company.models import Company
from InvenTree.api_tester import InvenTreeAPITestCase
from InvenTree.status_codes import (BuildStatus, PurchaseOrderStatus,
StockStatus)
from part.models import (BomItem, BomItemSubstitute, Part, PartCategory,
PartCategoryParameterTemplate, PartParameterTemplate,
PartRelated)
from stock.models import StockItem, StockLocation
class PartCategoryAPITest(InvenTreeAPITestCase):
"""Unit tests for the PartCategory API."""
fixtures = [
'category',
'part',
'params',
'location',
'bom',
'company',
'test_templates',
'manufacturer_part',
'supplier_part',
'order',
'stock',
]
roles = [
'part.change',
'part.add',
'part.delete',
'part_category.change',
'part_category.add',
'part_category.delete',
]
def test_category_list(self):
"""Test the PartCategoryList API endpoint"""
url = reverse('api-part-category-list')
response = self.get(url, expected_code=200)
self.assertEqual(len(response.data), 8)
# Filter by parent, depth=1
response = self.get(
url,
{
'parent': 1,
'cascade': False,
},
expected_code=200
)
self.assertEqual(len(response.data), 3)
# Filter by parent, cascading
response = self.get(
url,
{
'parent': 1,
'cascade': True,
},
expected_code=200,
)
self.assertEqual(len(response.data), 5)
def test_category_metadata(self):
"""Test metadata endpoint for the PartCategory."""
cat = PartCategory.objects.get(pk=1)
cat.metadata = {
'foo': 'bar',
'water': 'melon',
'abc': 'xyz',
}
cat.set_metadata('abc', 'ABC')
response = self.get(reverse('api-part-category-metadata', kwargs={'pk': 1}), expected_code=200)
metadata = response.data['metadata']
self.assertEqual(metadata['foo'], 'bar')
self.assertEqual(metadata['water'], 'melon')
self.assertEqual(metadata['abc'], 'ABC')
def test_category_parameters(self):
"""Test that the PartCategoryParameterTemplate API function work"""
url = reverse('api-part-category-parameter-list')
response = self.get(url, {}, expected_code=200)
self.assertEqual(len(response.data), 2)
# Add some more category templates via the API
n = PartParameterTemplate.objects.count()
for template in PartParameterTemplate.objects.all():
response = self.post(
url,
{
'category': 2,
'parameter_template': template.pk,
'default_value': 'xyz',
}
)
# Total number of category templates should have increased
response = self.get(url, {}, expected_code=200)
self.assertEqual(len(response.data), 2 + n)
# Filter by category
response = self.get(
url,
{
'category': 2,
}
)
self.assertEqual(len(response.data), n)
# Test that we can retrieve individual templates via the API
for template in PartCategoryParameterTemplate.objects.all():
url = reverse('api-part-category-parameter-detail', kwargs={'pk': template.pk})
data = self.get(url, {}, expected_code=200).data
for key in ['pk', 'category', 'category_detail', 'parameter_template', 'parameter_template_detail', 'default_value']:
self.assertIn(key, data.keys())
# Test that we can delete via the API also
response = self.delete(url, expected_code=204)
# There should not be any templates left at this point
self.assertEqual(PartCategoryParameterTemplate.objects.count(), 0)
def test_bleach(self):
"""Test that the data cleaning functionality is working"""
url = reverse('api-part-category-detail', kwargs={'pk': 1})
self.patch(
url,
{
'description': '<img src=# onerror=alert("pwned")>',
},
expected_code=200
)
cat = PartCategory.objects.get(pk=1)
# Image tags have been stripped
self.assertEqual(cat.description, '&lt;img src=# onerror=alert("pwned")&gt;')
self.patch(
url,
{
'description': '<a href="www.google.com">LINK</a><script>alert("h4x0r")</script>',
},
expected_code=200,
)
# Tags must have been bleached out
cat.refresh_from_db()
self.assertEqual(cat.description, '<a href="www.google.com">LINK</a>&lt;script&gt;alert("h4x0r")&lt;/script&gt;')
class PartOptionsAPITest(InvenTreeAPITestCase):
"""Tests for the various OPTIONS endpoints in the /part/ API.
Ensure that the required field details are provided!
"""
roles = [
'part.add',
]
def test_part(self):
"""Test the Part API OPTIONS."""
actions = self.getActions(reverse('api-part-list'))['POST']
# Check that a bunch o' fields are contained
for f in ['assembly', 'component', 'description', 'image', 'IPN']:
self.assertTrue(f in actions.keys())
# Active is a 'boolean' field
active = actions['active']
self.assertTrue(active['default'])
self.assertEqual(active['help_text'], 'Is this part active?')
self.assertEqual(active['type'], 'boolean')
self.assertEqual(active['read_only'], False)
# String field
ipn = actions['IPN']
self.assertEqual(ipn['type'], 'string')
self.assertFalse(ipn['required'])
self.assertEqual(ipn['max_length'], 100)
self.assertEqual(ipn['help_text'], 'Internal Part Number')
# Related field
category = actions['category']
self.assertEqual(category['type'], 'related field')
self.assertTrue(category['required'])
self.assertFalse(category['read_only'])
self.assertEqual(category['label'], 'Category')
self.assertEqual(category['model'], 'partcategory')
self.assertEqual(category['api_url'], reverse('api-part-category-list'))
self.assertEqual(category['help_text'], 'Part category')
def test_category(self):
"""Test the PartCategory API OPTIONS endpoint."""
actions = self.getActions(reverse('api-part-category-list'))
# actions should *not* contain 'POST' as we do not have the correct role
self.assertFalse('POST' in actions)
self.assignRole('part_category.add')
actions = self.getActions(reverse('api-part-category-list'))['POST']
name = actions['name']
self.assertTrue(name['required'])
self.assertEqual(name['label'], 'Name')
loc = actions['default_location']
self.assertEqual(loc['api_url'], reverse('api-location-list'))
def test_bom_item(self):
"""Test the BomItem API OPTIONS endpoint."""
actions = self.getActions(reverse('api-bom-list'))['POST']
inherited = actions['inherited']
self.assertEqual(inherited['type'], 'boolean')
# 'part' reference
part = actions['part']
self.assertTrue(part['required'])
self.assertFalse(part['read_only'])
self.assertTrue(part['filters']['assembly'])
# 'sub_part' reference
sub_part = actions['sub_part']
self.assertTrue(sub_part['required'])
self.assertEqual(sub_part['type'], 'related field')
self.assertTrue(sub_part['filters']['component'])
class PartAPITest(InvenTreeAPITestCase):
"""Series of tests for the Part DRF API.
- Tests for Part API
- Tests for PartCategory API
"""
fixtures = [
'category',
'part',
'location',
'bom',
'test_templates',
'company',
]
roles = [
'part.change',
'part.add',
'part.delete',
'part_category.change',
'part_category.add',
]
def test_get_categories(self):
"""Test that we can retrieve list of part categories, with various filtering options."""
url = reverse('api-part-category-list')
# Request *all* part categories
response = self.get(url)
self.assertEqual(response.status_code, status.HTTP_200_OK)
self.assertEqual(len(response.data), 8)
# Request top-level part categories only
response = self.get(
url,
{
'parent': 'null',
}
)
self.assertEqual(len(response.data), 2)
# Children of PartCategory<1>, cascade
response = self.get(
url,
{
'parent': 1,
'cascade': 'true',
}
)
self.assertEqual(len(response.data), 5)
# Children of PartCategory<1>, do not cascade
response = self.get(
url,
{
'parent': 1,
'cascade': 'false',
}
)
self.assertEqual(len(response.data), 3)
def test_add_categories(self):
"""Check that we can add categories."""
data = {
'name': 'Animals',
'description': 'All animals go here'
}
url = reverse('api-part-category-list')
response = self.post(url, data)
self.assertEqual(response.status_code, status.HTTP_201_CREATED)
parent = response.data['pk']
# Add some sub-categories to the top-level 'Animals' category
for animal in ['cat', 'dog', 'zebra']:
data = {
'name': animal,
'description': 'A sort of animal',
'parent': parent,
}
response = self.post(url, data)
self.assertEqual(response.status_code, status.HTTP_201_CREATED)
self.assertEqual(response.data['parent'], parent)
self.assertEqual(response.data['name'], animal)
self.assertEqual(response.data['pathstring'], 'Animals/' + animal)
# There should be now 8 categories
response = self.get(url)
self.assertEqual(len(response.data), 12)
def test_cat_detail(self):
"""Test the PartCategoryDetail API endpoint"""
url = reverse('api-part-category-detail', kwargs={'pk': 4})
response = self.get(url)
# Test that we have retrieved the category
self.assertEqual(response.data['description'], 'Integrated Circuits')
self.assertEqual(response.data['parent'], 1)
# Change some data and post it back
data = response.data
data['name'] = 'Changing category'
data['parent'] = None
data['description'] = 'Changing the description'
response = self.patch(url, data)
self.assertEqual(response.status_code, status.HTTP_200_OK)
self.assertEqual(response.data['description'], 'Changing the description')
self.assertIsNone(response.data['parent'])
def test_filter_parts(self):
"""Test part filtering using the API"""
url = reverse('api-part-list')
data = {'cascade': True}
response = self.get(url, data)
self.assertEqual(response.status_code, status.HTTP_200_OK)
self.assertEqual(len(response.data), Part.objects.count())
# Test filtering parts by category
data = {'category': 2}
response = self.get(url, data)
self.assertEqual(response.status_code, status.HTTP_200_OK)
# There should only be 2 objects in category C
self.assertEqual(len(response.data), 2)
for part in response.data:
self.assertEqual(part['category'], 2)
def test_filter_by_in_bom(self):
"""Test that we can filter part list by the 'in_bom_for' parameter"""
url = reverse('api-part-list')
response = self.get(
url,
{
'in_bom_for': 100,
},
expected_code=200,
)
self.assertEqual(len(response.data), 4)
def test_filter_by_related(self):
"""Test that we can filter by the 'related' status"""
url = reverse('api-part-list')
# Initially there are no relations, so this should return zero results
response = self.get(url, {'related': 1}, expected_code=200)
self.assertEqual(len(response.data), 0)
# Add some relationships
PartRelated.objects.create(
part_1=Part.objects.get(pk=1),
part_2=Part.objects.get(pk=2),
)
PartRelated.objects.create(
part_2=Part.objects.get(pk=1),
part_1=Part.objects.get(pk=3)
)
response = self.get(url, {'related': 1}, expected_code=200)
self.assertEqual(len(response.data), 2)
def test_filter_by_convert(self):
"""Test that we can correctly filter the Part list by conversion options"""
category = PartCategory.objects.get(pk=3)
# First, construct a set of template / variant parts
master_part = Part.objects.create(
name='Master', description='Master part',
category=category,
is_template=True,
)
# Construct a set of variant parts
variants = []
for color in ['Red', 'Green', 'Blue', 'Yellow', 'Pink', 'Black']:
variants.append(Part.objects.create(
name=f"{color} Variant", description="Variant part with a specific color",
variant_of=master_part,
category=category,
))
url = reverse('api-part-list')
# An invalid part ID will return an error
response = self.get(
url,
{
'convert_from': 999999,
},
expected_code=400
)
self.assertIn('Select a valid choice', str(response.data['convert_from']))
for variant in variants:
response = self.get(
url,
{
'convert_from': variant.pk,
},
expected_code=200
)
# There should be the same number of results for each request
self.assertEqual(len(response.data), 6)
id_values = [p['pk'] for p in response.data]
self.assertIn(master_part.pk, id_values)
for v in variants:
# Check that all *other* variants are included also
if v == variant:
continue
self.assertIn(v.pk, id_values)
def test_include_children(self):
"""Test the special 'include_child_categories' flag.
If provided, parts are provided for ANY child category (recursive)
"""
url = reverse('api-part-list')
data = {'category': 1, 'cascade': True}
# Now request to include child categories
response = self.get(url, data)
# Now there should be 5 total parts
self.assertEqual(response.status_code, status.HTTP_200_OK)
self.assertEqual(len(response.data), 3)
def test_test_templates(self):
"""Test the PartTestTemplate API"""
url = reverse('api-part-test-template-list')
# List ALL items
response = self.get(url)
self.assertEqual(response.status_code, status.HTTP_200_OK)
self.assertEqual(len(response.data), 7)
# Request for a particular part
response = self.get(url, data={'part': 10000})
self.assertEqual(len(response.data), 5)
response = self.get(url, data={'part': 10004})
self.assertEqual(len(response.data), 7)
# Try to post a new object (missing description)
response = self.post(
url,
data={
'part': 10000,
'test_name': 'My very first test',
'required': False,
}
)
self.assertEqual(response.status_code, 400)
# Try to post a new object (should succeed)
response = self.post(
url,
data={
'part': 10000,
'test_name': 'New Test',
'required': True,
'description': 'a test description'
}
)
self.assertEqual(response.status_code, status.HTTP_201_CREATED)
# Try to post a new test with the same name (should fail)
response = self.post(
url,
data={
'part': 10004,
'test_name': " newtest",
'description': 'dafsdf',
}
)
self.assertEqual(response.status_code, status.HTTP_400_BAD_REQUEST)
# Try to post a new test against a non-trackable part (should fail)
response = self.post(
url,
data={
'part': 1,
'test_name': 'A simple test',
}
)
self.assertEqual(response.status_code, status.HTTP_400_BAD_REQUEST)
def test_get_thumbs(self):
"""Return list of part thumbnails."""
url = reverse('api-part-thumbs')
response = self.get(url)
self.assertEqual(response.status_code, status.HTTP_200_OK)
def test_paginate(self):
"""Test pagination of the Part list API."""
for n in [1, 5, 10]:
response = self.get(reverse('api-part-list'), {'limit': n})
data = response.data
self.assertIn('count', data)
self.assertIn('results', data)
self.assertEqual(len(data['results']), n)
def test_default_values(self):
"""Tests for 'default' values:
Ensure that unspecified fields revert to "default" values
(as specified in the model field definition)
"""
url = reverse('api-part-list')
response = self.post(url, {
'name': 'all defaults',
'description': 'my test part',
'category': 1,
})
data = response.data
# Check that the un-specified fields have used correct default values
self.assertTrue(data['active'])
self.assertFalse(data['virtual'])
# By default, parts are purchaseable
self.assertTrue(data['purchaseable'])
# Set the default 'purchaseable' status to True
InvenTreeSetting.set_setting(
'PART_PURCHASEABLE',
True,
self.user
)
response = self.post(url, {
'name': 'all defaults',
'description': 'my test part 2',
'category': 1,
})
# Part should now be purchaseable by default
self.assertTrue(response.data['purchaseable'])
# "default" values should not be used if the value is specified
response = self.post(url, {
'name': 'all defaults',
'description': 'my test part 2',
'category': 1,
'active': False,
'purchaseable': False,
})
self.assertFalse(response.data['active'])
self.assertFalse(response.data['purchaseable'])
def test_initial_stock(self):
"""Tests for initial stock quantity creation."""
url = reverse('api-part-list')
# Track how many parts exist at the start of this test
n = Part.objects.count()
# Set up required part data
data = {
'category': 1,
'name': "My lil' test part",
'description': 'A part with which to test',
}
# Signal that we want to add initial stock
data['initial_stock'] = True
# Post without a quantity
response = self.post(url, data, expected_code=400)
self.assertIn('initial_stock_quantity', response.data)
# Post with an invalid quantity
data['initial_stock_quantity'] = "ax"
response = self.post(url, data, expected_code=400)
self.assertIn('initial_stock_quantity', response.data)
# Post with a negative quantity
data['initial_stock_quantity'] = -1
response = self.post(url, data, expected_code=400)
self.assertIn('Must be greater than zero', response.data['initial_stock_quantity'])
# Post with a valid quantity
data['initial_stock_quantity'] = 12345
response = self.post(url, data, expected_code=400)
self.assertIn('initial_stock_location', response.data)
# Check that the number of parts has not increased (due to form failures)
self.assertEqual(Part.objects.count(), n)
# Now, set a location
data['initial_stock_location'] = 1
response = self.post(url, data, expected_code=201)
# Check that the part has been created
self.assertEqual(Part.objects.count(), n + 1)
pk = response.data['pk']
new_part = Part.objects.get(pk=pk)
self.assertEqual(new_part.total_stock, 12345)
def test_initial_supplier_data(self):
"""Tests for initial creation of supplier / manufacturer data."""
url = reverse('api-part-list')
n = Part.objects.count()
# Set up initial part data
data = {
'category': 1,
'name': 'Buy Buy Buy',
'description': 'A purchaseable part',
'purchaseable': True,
}
# Signal that we wish to create initial supplier data
data['add_supplier_info'] = True
# Specify MPN but not manufacturer
data['MPN'] = 'MPN-123'
response = self.post(url, data, expected_code=400)
self.assertIn('manufacturer', response.data)
# Specify manufacturer but not MPN
del data['MPN']
data['manufacturer'] = 1
response = self.post(url, data, expected_code=400)
self.assertIn('MPN', response.data)
# Specify SKU but not supplier
del data['manufacturer']
data['SKU'] = 'SKU-123'
response = self.post(url, data, expected_code=400)
self.assertIn('supplier', response.data)
# Specify supplier but not SKU
del data['SKU']
data['supplier'] = 1
response = self.post(url, data, expected_code=400)
self.assertIn('SKU', response.data)
# Check that no new parts have been created
self.assertEqual(Part.objects.count(), n)
# Now, fully specify the details
data['SKU'] = 'SKU-123'
data['supplier'] = 3
data['MPN'] = 'MPN-123'
data['manufacturer'] = 6
response = self.post(url, data, expected_code=201)
self.assertEqual(Part.objects.count(), n + 1)
pk = response.data['pk']
new_part = Part.objects.get(pk=pk)
# Check that there is a new manufacturer part *and* a new supplier part
self.assertEqual(new_part.supplier_parts.count(), 1)
self.assertEqual(new_part.manufacturer_parts.count(), 1)
def test_strange_chars(self):
"""Test that non-standard ASCII chars are accepted."""
url = reverse('api-part-list')
name = "Kaltgerätestecker"
description = "Gerät"
data = {
"name": name,
"description": description,
"category": 2
}
response = self.post(url, data, expected_code=201)
self.assertEqual(response.data['name'], name)
self.assertEqual(response.data['description'], description)
def test_template_filters(self):
"""Unit tests for API filters related to template parts:
- variant_of : Return children of specified part
- ancestor : Return descendants of specified part
Uses the 'chair template' part (pk=10000)
"""
# Rebuild the MPTT structure before running these tests
Part.objects.rebuild()
url = reverse('api-part-list')
response = self.get(
url,
{
'variant_of': 10000,
},
expected_code=200
)
# 3 direct children of template part
self.assertEqual(len(response.data), 3)
response = self.get(
url,
{
'ancestor': 10000,
},
expected_code=200,
)
# 4 total descendants
self.assertEqual(len(response.data), 4)
# Use the 'green chair' as our reference
response = self.get(
url,
{
'variant_of': 10003,
},
expected_code=200,
)
self.assertEqual(len(response.data), 1)
response = self.get(
url,
{
'ancestor': 10003,
},
expected_code=200,
)
self.assertEqual(len(response.data), 1)
# Add some more variants
p = Part.objects.get(pk=10004)
for i in range(100):
Part.objects.create(
name=f'Chair variant {i}',
description='A new chair variant',
variant_of=p,
)
# There should still be only one direct variant
response = self.get(
url,
{
'variant_of': 10003,
},
expected_code=200,
)
self.assertEqual(len(response.data), 1)
# However, now should be 101 descendants
response = self.get(
url,
{
'ancestor': 10003,
},
expected_code=200,
)
self.assertEqual(len(response.data), 101)
def test_variant_stock(self):
"""Unit tests for the 'variant_stock' annotation, which provides a stock count for *variant* parts."""
# Ensure the MPTT structure is in a known state before running tests
Part.objects.rebuild()
# Initially, there are no "chairs" in stock,
# so each 'chair' template should report variant_stock=0
url = reverse('api-part-list')
# Look at the "detail" URL for the master chair template
response = self.get('/api/part/10000/', {}, expected_code=200)
# This part should report 'zero' as variant stock
self.assertEqual(response.data['variant_stock'], 0)
# Grab a list of all variant chairs *under* the master template
response = self.get(
url,
{
'ancestor': 10000,
},
expected_code=200,
)
# 4 total descendants
self.assertEqual(len(response.data), 4)
for variant in response.data:
self.assertEqual(variant['variant_stock'], 0)
# Now, let's make some variant stock
for variant in Part.objects.get(pk=10000).get_descendants(include_self=False):
StockItem.objects.create(
part=variant,
quantity=100,
)
response = self.get('/api/part/10000/', {}, expected_code=200)
self.assertEqual(response.data['in_stock'], 0)
self.assertEqual(response.data['variant_stock'], 400)
# Check that each variant reports the correct stock quantities
response = self.get(
url,
{
'ancestor': 10000,
},
expected_code=200,
)
expected_variant_stock = {
10001: 0,
10002: 0,
10003: 100,
10004: 0,
}
for variant in response.data:
self.assertEqual(variant['in_stock'], 100)
self.assertEqual(variant['variant_stock'], expected_variant_stock[variant['pk']])
# Add some 'sub variants' for the green chair variant
green_chair = Part.objects.get(pk=10004)
for i in range(10):
gcv = Part.objects.create(
name=f"GC Var {i}",
description="Green chair variant",
variant_of=green_chair,
)
StockItem.objects.create(
part=gcv,
quantity=50,
)
# Spot check of some values
response = self.get('/api/part/10000/', {})
self.assertEqual(response.data['variant_stock'], 900)
response = self.get('/api/part/10004/', {})
self.assertEqual(response.data['variant_stock'], 500)
def test_part_download(self):
"""Test download of part data via the API."""
url = reverse('api-part-list')
required_cols = [
'id',
'name',
'description',
'in_stock',
'category_name',
'keywords',
'is_template',
'virtual',
'trackable',
'active',
'notes',
'creation_date',
]
excluded_cols = [
'lft', 'rght', 'level', 'tree_id',
'metadata',
]
with self.download_file(
url,
{
'export': 'csv',
},
expected_fn='InvenTree_Parts.csv',
) as fo:
data = self.process_csv(
fo,
excluded_cols=excluded_cols,
required_cols=required_cols,
required_rows=Part.objects.count(),
)
for row in data:
part = Part.objects.get(pk=row['id'])
if part.IPN:
self.assertEqual(part.IPN, row['IPN'])
self.assertEqual(part.name, row['name'])
self.assertEqual(part.description, row['description'])
if part.category:
self.assertEqual(part.category.name, row['category_name'])
class PartDetailTests(InvenTreeAPITestCase):
"""Test that we can create / edit / delete Part objects via the API."""
fixtures = [
'category',
'part',
'location',
'bom',
'company',
'test_templates',
'manufacturer_part',
'supplier_part',
'order',
'stock',
]
roles = [
'part.change',
'part.add',
'part.delete',
'part_category.change',
'part_category.add',
]
def test_part_operations(self):
"""Test that Part instances can be adjusted via the API"""
n = Part.objects.count()
# Create a part
response = self.post(
reverse('api-part-list'),
{
'name': 'my test api part',
'description': 'a part created with the API',
'category': 1,
}
)
self.assertEqual(response.status_code, 201)
pk = response.data['pk']
# Check that a new part has been added
self.assertEqual(Part.objects.count(), n + 1)
part = Part.objects.get(pk=pk)
self.assertEqual(part.name, 'my test api part')
# Edit the part
url = reverse('api-part-detail', kwargs={'pk': pk})
# Let's change the name of the part
response = self.patch(url, {
'name': 'a new better name',
})
self.assertEqual(response.status_code, 200)
self.assertEqual(response.data['pk'], pk)
self.assertEqual(response.data['name'], 'a new better name')
part = Part.objects.get(pk=pk)
# Name has been altered
self.assertEqual(part.name, 'a new better name')
# Part count should not have changed
self.assertEqual(Part.objects.count(), n + 1)
# Now, try to set the name to the *same* value
# 2021-06-22 this test is to check that the "duplicate part" checks don't do strange things
response = self.patch(url, {
'name': 'a new better name',
})
self.assertEqual(response.status_code, 200)
# Try to remove the part
response = self.delete(url)
# As the part is 'active' we cannot delete it
self.assertEqual(response.status_code, 405)
# So, let's make it not active
response = self.patch(url, {'active': False}, expected_code=200)
response = self.delete(url)
self.assertEqual(response.status_code, 204)
# Part count should have reduced
self.assertEqual(Part.objects.count(), n)
def test_duplicates(self):
"""Check that trying to create 'duplicate' parts results in errors."""
# Create a part
response = self.post(reverse('api-part-list'), {
'name': 'part',
'description': 'description',
'IPN': 'IPN-123',
'category': 1,
'revision': 'A',
})
self.assertEqual(response.status_code, 201)
n = Part.objects.count()
# Check that we cannot create a duplicate in a different category
response = self.post(reverse('api-part-list'), {
'name': 'part',
'description': 'description',
'IPN': 'IPN-123',
'category': 2,
'revision': 'A',
})
self.assertEqual(response.status_code, 400)
# Check that only 1 matching part exists
parts = Part.objects.filter(
name='part',
description='description',
IPN='IPN-123'
)
self.assertEqual(parts.count(), 1)
# A new part should *not* have been created
self.assertEqual(Part.objects.count(), n)
# But a different 'revision' *can* be created
response = self.post(reverse('api-part-list'), {
'name': 'part',
'description': 'description',
'IPN': 'IPN-123',
'category': 2,
'revision': 'B',
})
self.assertEqual(response.status_code, 201)
self.assertEqual(Part.objects.count(), n + 1)
# Now, check that we cannot *change* an existing part to conflict
pk = response.data['pk']
url = reverse('api-part-detail', kwargs={'pk': pk})
# Attempt to alter the revision code
response = self.patch(
url,
{
'revision': 'A',
}
)
self.assertEqual(response.status_code, 400)
# But we *can* change it to a unique revision code
response = self.patch(
url,
{
'revision': 'C',
}
)
self.assertEqual(response.status_code, 200)
def test_image_upload(self):
"""Test that we can upload an image to the part API."""
self.assignRole('part.add')
# Create a new part
response = self.post(
reverse('api-part-list'),
{
'name': 'imagine',
'description': 'All the people',
'category': 1,
},
expected_code=201
)
pk = response.data['pk']
url = reverse('api-part-detail', kwargs={'pk': pk})
p = Part.objects.get(pk=pk)
# Part should not have an image!
with self.assertRaises(ValueError):
print(p.image.file)
# Create a custom APIClient for file uploads
# Ref: https://stackoverflow.com/questions/40453947/how-to-generate-a-file-upload-test-request-with-django-rest-frameworks-apireq
upload_client = APIClient()
upload_client.force_authenticate(user=self.user)
# Try to upload a non-image file
with open('dummy_image.txt', 'w') as dummy_image:
dummy_image.write('hello world')
with open('dummy_image.txt', 'rb') as dummy_image:
response = upload_client.patch(
url,
{
'image': dummy_image,
},
format='multipart',
)
self.assertEqual(response.status_code, 400)
self.assertIn('Upload a valid image', str(response.data))
# Now try to upload a valid image file, in multiple formats
for fmt in ['jpg', 'j2k', 'png', 'bmp', 'webp']:
fn = f'dummy_image.{fmt}'
img = PIL.Image.new('RGB', (128, 128), color='red')
img.save(fn)
with open(fn, 'rb') as dummy_image:
response = upload_client.patch(
url,
{
'image': dummy_image,
},
format='multipart',
)
self.assertEqual(response.status_code, 200)
# And now check that the image has been set
p = Part.objects.get(pk=pk)
self.assertIsNotNone(p.image)
def test_details(self):
"""Test that the required details are available."""
p = Part.objects.get(pk=1)
url = reverse('api-part-detail', kwargs={'pk': 1})
data = self.get(url, expected_code=200).data
# How many parts are 'on order' for this part?
lines = order.models.PurchaseOrderLineItem.objects.filter(
part__part__pk=1,
order__status__in=PurchaseOrderStatus.OPEN,
)
on_order = 0
# Calculate the "on_order" quantity by hand,
# to check it matches the API value
for line in lines:
on_order += line.quantity
on_order -= line.received
self.assertEqual(on_order, data['ordering'])
self.assertEqual(on_order, p.on_order)
# Some other checks
self.assertEqual(data['in_stock'], 9000)
self.assertEqual(data['unallocated_stock'], 9000)
def test_part_metadata(self):
"""Tests for the part metadata endpoint."""
url = reverse('api-part-metadata', kwargs={'pk': 1})
part = Part.objects.get(pk=1)
# Metadata is initially null
self.assertIsNone(part.metadata)
part.metadata = {'foo': 'bar'}
part.save()
response = self.get(url, expected_code=200)
self.assertEqual(response.data['metadata']['foo'], 'bar')
# Add more data via the API
# Using the 'patch' method causes the new data to be merged in
self.patch(
url,
{
'metadata': {
'hello': 'world',
}
},
expected_code=200
)
part.refresh_from_db()
self.assertEqual(part.metadata['foo'], 'bar')
self.assertEqual(part.metadata['hello'], 'world')
# Now, issue a PUT request (existing data will be replacted)
self.put(
url,
{
'metadata': {
'x': 'y'
},
},
expected_code=200
)
part.refresh_from_db()
self.assertFalse('foo' in part.metadata)
self.assertFalse('hello' in part.metadata)
self.assertEqual(part.metadata['x'], 'y')
def test_part_notes(self):
"""Unit tests for the part 'notes' field"""
# Ensure that we cannot upload a very long piece of text
url = reverse('api-part-detail', kwargs={'pk': 1})
response = self.patch(
url,
{
'notes': 'abcde' * 10001
},
expected_code=400
)
self.assertIn('Ensure this field has no more than 50000 characters', str(response.data['notes']))
class PartAPIAggregationTest(InvenTreeAPITestCase):
"""Tests to ensure that the various aggregation annotations are working correctly..."""
fixtures = [
'category',
'company',
'part',
'location',
'bom',
'test_templates',
'build',
'location',
'stock',
'sales_order',
]
roles = [
'part.view',
'part.change',
]
def setUp(self):
"""Create test data as part of setup routine"""
super().setUp()
# Ensure the part "variant" tree is correctly structured
Part.objects.rebuild()
# Add a new part
self.part = Part.objects.create(
name='Banana',
description='This is a banana',
category=PartCategory.objects.get(pk=1),
)
# Create some stock items associated with the part
# First create 600 units which are OK
StockItem.objects.create(part=self.part, quantity=100)
StockItem.objects.create(part=self.part, quantity=200)
StockItem.objects.create(part=self.part, quantity=300)
# Now create another 400 units which are LOST
StockItem.objects.create(part=self.part, quantity=400, status=StockStatus.LOST)
def get_part_data(self):
"""Helper function for retrieving part data"""
url = reverse('api-part-list')
response = self.get(url)
self.assertEqual(response.status_code, status.HTTP_200_OK)
for part in response.data:
if part['pk'] == self.part.pk:
return part
# We should never get here!
self.assertTrue(False) # pragma: no cover
def test_stock_quantity(self):
"""Simple test for the stock quantity."""
data = self.get_part_data()
self.assertEqual(data['in_stock'], 600)
self.assertEqual(data['stock_item_count'], 4)
# Add some more stock items!!
for _ in range(100):
StockItem.objects.create(part=self.part, quantity=5)
# Add another stock item which is assigned to a customer (and shouldn't count)
customer = Company.objects.get(pk=4)
StockItem.objects.create(part=self.part, quantity=9999, customer=customer)
data = self.get_part_data()
self.assertEqual(data['in_stock'], 1100)
self.assertEqual(data['stock_item_count'], 105)
def test_allocation_annotations(self):
"""Tests for query annotations which add allocation information.
Ref: https://github.com/inventree/InvenTree/pull/2797
"""
# We are looking at Part ID 100 ("Bob")
url = reverse('api-part-detail', kwargs={'pk': 100})
part = Part.objects.get(pk=100)
response = self.get(url, expected_code=200)
# Check that the expected annotated fields exist in the data
data = response.data
self.assertEqual(data['allocated_to_build_orders'], 0)
self.assertEqual(data['allocated_to_sales_orders'], 0)
# The unallocated stock count should equal the 'in stock' coutn
in_stock = data['in_stock']
self.assertEqual(in_stock, 126)
self.assertEqual(data['unallocated_stock'], in_stock)
# Check that model functions return the same values
self.assertEqual(part.build_order_allocation_count(), 0)
self.assertEqual(part.sales_order_allocation_count(), 0)
self.assertEqual(part.total_stock, in_stock)
self.assertEqual(part.available_stock, in_stock)
# Now, let's create a sales order, and allocate some stock
so = order.models.SalesOrder.objects.create(
reference='001',
customer=Company.objects.get(pk=1),
)
# We wish to send 50 units of "Bob" against this sales order
line = order.models.SalesOrderLineItem.objects.create(
quantity=50,
order=so,
part=part,
)
# Create a shipment against the order
shipment_1 = order.models.SalesOrderShipment.objects.create(
order=so,
reference='001',
)
shipment_2 = order.models.SalesOrderShipment.objects.create(
order=so,
reference='002',
)
# Allocate stock items to this order, against multiple shipments
order.models.SalesOrderAllocation.objects.create(
line=line,
shipment=shipment_1,
item=StockItem.objects.get(pk=1007),
quantity=17
)
order.models.SalesOrderAllocation.objects.create(
line=line,
shipment=shipment_1,
item=StockItem.objects.get(pk=1008),
quantity=18
)
order.models.SalesOrderAllocation.objects.create(
line=line,
shipment=shipment_2,
item=StockItem.objects.get(pk=1006),
quantity=15,
)
# Submit the API request again - should show us the sales order allocation
data = self.get(url, expected_code=200).data
self.assertEqual(data['allocated_to_sales_orders'], 50)
self.assertEqual(data['in_stock'], 126)
self.assertEqual(data['unallocated_stock'], 76)
# Now, "ship" the first shipment (so the stock is not 'in stock' any more)
shipment_1.complete_shipment(None)
# Refresh the API data
data = self.get(url, expected_code=200).data
self.assertEqual(data['allocated_to_build_orders'], 0)
self.assertEqual(data['allocated_to_sales_orders'], 15)
self.assertEqual(data['in_stock'], 91)
self.assertEqual(data['unallocated_stock'], 76)
# Next, we create a build order and allocate stock against it
bo = build.models.Build.objects.create(
part=Part.objects.get(pk=101),
quantity=10,
title='Making some assemblies',
reference='BO-9999',
status=BuildStatus.PRODUCTION,
)
bom_item = BomItem.objects.get(pk=6)
# Allocate multiple stock items against this build order
build.models.BuildItem.objects.create(
build=bo,
bom_item=bom_item,
stock_item=StockItem.objects.get(pk=1000),
quantity=10,
)
# Request data once more
data = self.get(url, expected_code=200).data
self.assertEqual(data['allocated_to_build_orders'], 10)
self.assertEqual(data['allocated_to_sales_orders'], 15)
self.assertEqual(data['in_stock'], 91)
self.assertEqual(data['unallocated_stock'], 66)
# Again, check that the direct model functions return the same values
self.assertEqual(part.build_order_allocation_count(), 10)
self.assertEqual(part.sales_order_allocation_count(), 15)
self.assertEqual(part.total_stock, 91)
self.assertEqual(part.available_stock, 66)
# Allocate further stock against the build
build.models.BuildItem.objects.create(
build=bo,
bom_item=bom_item,
stock_item=StockItem.objects.get(pk=1001),
quantity=10,
)
# Request data once more
data = self.get(url, expected_code=200).data
self.assertEqual(data['allocated_to_build_orders'], 20)
self.assertEqual(data['allocated_to_sales_orders'], 15)
self.assertEqual(data['in_stock'], 91)
self.assertEqual(data['unallocated_stock'], 56)
# Again, check that the direct model functions return the same values
self.assertEqual(part.build_order_allocation_count(), 20)
self.assertEqual(part.sales_order_allocation_count(), 15)
self.assertEqual(part.total_stock, 91)
self.assertEqual(part.available_stock, 56)
class BomItemTest(InvenTreeAPITestCase):
"""Unit tests for the BomItem API."""
fixtures = [
'category',
'part',
'location',
'stock',
'bom',
'company',
]
roles = [
'part.add',
'part.change',
'part.delete',
]
def test_bom_list(self):
"""Tests for the BomItem list endpoint."""
# How many BOM items currently exist in the database?
n = BomItem.objects.count()
url = reverse('api-bom-list')
response = self.get(url, expected_code=200)
self.assertEqual(len(response.data), n)
# Now, filter by part
response = self.get(
url,
data={
'part': 100,
},
expected_code=200
)
# Filter by "validated"
response = self.get(
url,
data={
'validated': True,
},
expected_code=200,
)
# Should be zero validated results
self.assertEqual(len(response.data), 0)
# Now filter by "not validated"
response = self.get(
url,
data={
'validated': False,
},
expected_code=200
)
# There should be at least one non-validated item
self.assertTrue(len(response.data) > 0)
# Now, let's validate an item
bom_item = BomItem.objects.first()
bom_item.validate_hash()
response = self.get(
url,
data={
'validated': True,
},
expected_code=200
)
# Check that the expected response is returned
self.assertEqual(len(response.data), 1)
self.assertEqual(response.data[0]['pk'], bom_item.pk)
# Each item in response should contain expected keys
for el in response.data:
for key in ['available_stock', 'available_substitute_stock']:
self.assertTrue(key in el)
def test_bom_list_search(self):
"""Test that we can search the BOM list API endpoint"""
url = reverse('api-bom-list')
response = self.get(url, expected_code=200)
self.assertEqual(len(response.data), 6)
# Limit the results with a search term
response = self.get(
url,
{
'search': '0805',
},
expected_code=200,
)
self.assertEqual(len(response.data), 3)
# Search by 'reference' field
for q in ['ABCDE', 'LMNOP', 'VWXYZ']:
response = self.get(
url,
{
'search': q,
},
expected_code=200
)
self.assertEqual(len(response.data), 1)
self.assertEqual(response.data[0]['reference'], q)
# Search by nonsense data
response = self.get(
url,
{
'search': 'xxxxxxxxxxxxxxxxx',
},
expected_code=200
)
self.assertEqual(len(response.data), 0)
def test_bom_list_ordering(self):
"""Test that the BOM list results can be ordered"""
url = reverse('api-bom-list')
# Order by increasing quantity
response = self.get(
f"{url}?ordering=+quantity",
expected_code=200
)
self.assertEqual(len(response.data), 6)
q1 = response.data[0]['quantity']
q2 = response.data[-1]['quantity']
self.assertTrue(q1 < q2)
# Order by decreasing quantity
response = self.get(
f"{url}?ordering=-quantity",
expected_code=200,
)
self.assertEqual(q1, response.data[-1]['quantity'])
self.assertEqual(q2, response.data[0]['quantity'])
# Now test ordering by 'sub_part' (which is actually 'sub_part__name')
response = self.get(
url,
{
'ordering': 'sub_part',
'sub_part_detail': True,
},
expected_code=200,
)
n1 = response.data[0]['sub_part_detail']['name']
n2 = response.data[-1]['sub_part_detail']['name']
response = self.get(
url,
{
'ordering': '-sub_part',
'sub_part_detail': True,
},
expected_code=200,
)
self.assertEqual(n1, response.data[-1]['sub_part_detail']['name'])
self.assertEqual(n2, response.data[0]['sub_part_detail']['name'])
def test_get_bom_detail(self):
"""Get the detail view for a single BomItem object."""
url = reverse('api-bom-item-detail', kwargs={'pk': 3})
response = self.get(url, expected_code=200)
expected_values = [
'allow_variants',
'inherited',
'note',
'optional',
'overage',
'pk',
'part',
'quantity',
'reference',
'sub_part',
'substitutes',
'validated',
'available_stock',
'available_substitute_stock',
]
for key in expected_values:
self.assertTrue(key in response.data)
self.assertEqual(int(float(response.data['quantity'])), 25)
# Increase the quantity
data = response.data
data['quantity'] = 57
data['note'] = 'Added a note'
response = self.patch(url, data, expected_code=200)
self.assertEqual(int(float(response.data['quantity'])), 57)
self.assertEqual(response.data['note'], 'Added a note')
def test_add_bom_item(self):
"""Test that we can create a new BomItem via the API."""
url = reverse('api-bom-list')
data = {
'part': 100,
'sub_part': 4,
'quantity': 777,
}
self.post(url, data, expected_code=201)
# Now try to create a BomItem which references itself
data['part'] = 100
data['sub_part'] = 100
self.post(url, data, expected_code=400)
def test_variants(self):
"""Tests for BomItem use with variants."""
stock_url = reverse('api-stock-list')
# BOM item we are interested in
bom_item = BomItem.objects.get(pk=1)
bom_item.allow_variants = True
bom_item.save()
# sub part that the BOM item points to
sub_part = bom_item.sub_part
sub_part.is_template = True
sub_part.save()
# How many stock items are initially available for this part?
response = self.get(
stock_url,
{
'bom_item': bom_item.pk,
},
expected_code=200
)
n_items = len(response.data)
self.assertEqual(n_items, 2)
loc = StockLocation.objects.get(pk=1)
# Now we will create some variant parts and stock
for ii in range(5):
# Create a variant part!
variant = Part.objects.create(
name=f"Variant_{ii}",
description="A variant part",
component=True,
variant_of=sub_part
)
variant.save()
Part.objects.rebuild()
# Create some stock items for this new part
for _ in range(ii):
StockItem.objects.create(
part=variant,
location=loc,
quantity=100
)
# Keep track of running total
n_items += ii
# Now, there should be more stock items available!
response = self.get(
stock_url,
{
'bom_item': bom_item.pk,
},
expected_code=200
)
self.assertEqual(len(response.data), n_items)
# Now, disallow variant parts in the BomItem
bom_item.allow_variants = False
bom_item.save()
# There should now only be 2 stock items available again
response = self.get(
stock_url,
{
'bom_item': bom_item.pk,
},
expected_code=200
)
self.assertEqual(len(response.data), 2)
def test_substitutes(self):
"""Tests for BomItem substitutes."""
url = reverse('api-bom-substitute-list')
stock_url = reverse('api-stock-list')
# Initially we have no substitute parts
response = self.get(url, expected_code=200)
self.assertEqual(len(response.data), 0)
# BOM item we are interested in
bom_item = BomItem.objects.get(pk=1)
# Filter stock items which can be assigned against this stock item
response = self.get(
stock_url,
{
"bom_item": bom_item.pk,
},
expected_code=200
)
n_items = len(response.data)
loc = StockLocation.objects.get(pk=1)
# Let's make some!
for ii in range(5):
sub_part = Part.objects.create(
name=f"Substitute {ii}",
description="A substitute part",
component=True,
is_template=False,
assembly=False
)
# Create a new StockItem for this Part
StockItem.objects.create(
part=sub_part,
quantity=1000,
location=loc,
)
# Now, create an "alternative" for the BOM Item
BomItemSubstitute.objects.create(
bom_item=bom_item,
part=sub_part
)
# We should be able to filter the API list to just return this new part
response = self.get(url, data={'part': sub_part.pk}, expected_code=200)
self.assertEqual(len(response.data), 1)
# We should also have more stock available to allocate against this BOM item!
response = self.get(
stock_url,
{
"bom_item": bom_item.pk,
},
expected_code=200
)
self.assertEqual(len(response.data), n_items + ii + 1)
# There should now be 5 substitute parts available in the database
response = self.get(url, expected_code=200)
self.assertEqual(len(response.data), 5)
# The BomItem detail endpoint should now also reflect the substitute data
data = self.get(
reverse('api-bom-item-detail', kwargs={'pk': bom_item.pk}),
expected_code=200
).data
# 5 substitute parts
self.assertEqual(len(data['substitutes']), 5)
# 5 x 1,000 stock quantity
self.assertEqual(data['available_substitute_stock'], 5000)
# 9,000 stock directly available
self.assertEqual(data['available_stock'], 9000)
def test_bom_item_uses(self):
"""Tests for the 'uses' field."""
url = reverse('api-bom-list')
# Test that the direct 'sub_part' association works
assemblies = []
for i in range(5):
assy = Part.objects.create(
name=f"Assy_{i}",
description="An assembly made of other parts",
active=True,
assembly=True
)
assemblies.append(assy)
components = []
# Create some sub-components
for i in range(5):
cmp = Part.objects.create(
name=f"Component_{i}",
description="A sub component",
active=True,
component=True
)
for j in range(i):
# Create a BOM item
BomItem.objects.create(
quantity=10,
part=assemblies[j],
sub_part=cmp,
)
components.append(cmp)
response = self.get(
url,
{
'uses': cmp.pk,
},
expected_code=200,
)
self.assertEqual(len(response.data), i)
def test_bom_variant_stock(self):
"""Test for 'available_variant_stock' annotation."""
Part.objects.rebuild()
# BOM item we are interested in
bom_item = BomItem.objects.get(pk=1)
response = self.get('/api/bom/1/', {}, expected_code=200)
# Initially, no variant stock available
self.assertEqual(response.data['available_variant_stock'], 0)
# Create some 'variants' of the referenced sub_part
bom_item.sub_part.is_template = True
bom_item.sub_part.save()
for i in range(10):
# Create a variant part
vp = Part.objects.create(
name=f"Var {i}",
description="Variant part",
variant_of=bom_item.sub_part,
)
# Create a stock item
StockItem.objects.create(
part=vp,
quantity=100,
)
# There should now be variant stock available
response = self.get('/api/bom/1/', {}, expected_code=200)
self.assertEqual(response.data['available_variant_stock'], 1000)
class PartParameterTest(InvenTreeAPITestCase):
"""Tests for the ParParameter API."""
superuser = True
fixtures = [
'category',
'part',
'location',
'params',
]
def test_list_params(self):
"""Test for listing part parameters."""
url = reverse('api-part-parameter-list')
response = self.get(url)
self.assertEqual(len(response.data), 5)
# Filter by part
response = self.get(
url,
{
'part': 3,
}
)
self.assertEqual(len(response.data), 3)
# Filter by template
response = self.get(
url,
{
'template': 1,
}
)
self.assertEqual(len(response.data), 3)
def test_create_param(self):
"""Test that we can create a param via the API."""
url = reverse('api-part-parameter-list')
response = self.post(
url,
{
'part': '2',
'template': '3',
'data': 70
}
)
self.assertEqual(response.status_code, 201)
response = self.get(url)
self.assertEqual(len(response.data), 6)
def test_param_detail(self):
"""Tests for the PartParameter detail endpoint."""
url = reverse('api-part-parameter-detail', kwargs={'pk': 5})
response = self.get(url)
self.assertEqual(response.status_code, 200)
data = response.data
self.assertEqual(data['pk'], 5)
self.assertEqual(data['part'], 3)
self.assertEqual(data['data'], '12')
# PATCH data back in
response = self.patch(url, {'data': '15'})
self.assertEqual(response.status_code, 200)
# Check that the data changed!
response = self.get(url)
data = response.data
self.assertEqual(data['data'], '15')