Add sample clean() for model + Add tests for uncloud_vm
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2 changed files with 153 additions and 38 deletions
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@ -1,6 +1,10 @@
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import uuid
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from django.db import models
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from django.contrib.auth import get_user_model
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import uuid
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# Uncomment if you override model's clean method
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# from django.core.exceptions import ValidationError
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from uncloud_pay.models import Product
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@ -13,7 +17,8 @@ STATUS_CHOICES = (
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('deleted', 'Deleted'), # Does not exist anymore, only DB entry as a log
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)
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STATUS_DEFAULT='pending'
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STATUS_DEFAULT = 'pending'
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class VMHost(models.Model):
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uuid = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
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@ -30,19 +35,13 @@ class VMHost(models.Model):
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# ram that can be used of the server
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usable_ram_in_gb = models.FloatField(default=0)
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status = models.CharField(max_length=32,
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choices=STATUS_CHOICES,
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default=STATUS_DEFAULT
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)
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status = models.CharField(max_length=32, choices=STATUS_CHOICES, default=STATUS_DEFAULT)
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class VMProduct(Product):
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vmhost = models.ForeignKey(VMHost,
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on_delete=models.CASCADE,
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editable=False,
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blank=True,
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null=True)
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vmhost = models.ForeignKey(
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VMHost, on_delete=models.CASCADE, editable=False, blank=True, null=True
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)
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cores = models.IntegerField()
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ram_in_gb = models.FloatField()
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@ -60,36 +59,30 @@ class VMDiskImageProduct(models.Model):
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"""
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uuid = models.UUIDField(primary_key=True,
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default=uuid.uuid4,
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editable=False)
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owner = models.ForeignKey(get_user_model(),
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on_delete=models.CASCADE,
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editable=False)
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uuid = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
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owner = models.ForeignKey(get_user_model(), on_delete=models.CASCADE, editable=False)
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name = models.CharField(max_length=256)
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is_os_image = models.BooleanField(default=False)
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is_public = models.BooleanField(default=False)
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size_in_gb = models.FloatField(null=True,
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blank=True)
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import_url = models.URLField(null=True,
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blank=True)
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size_in_gb = models.FloatField(null=True, blank=True)
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import_url = models.URLField(null=True, blank=True)
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storage_class = models.CharField(max_length=32,
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choices = (
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storage_class = models.CharField(
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max_length=32,
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choices=(
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('hdd', 'HDD'),
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('ssd', 'SSD'),
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),
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default='ssd'
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)
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status = models.CharField(max_length=32,
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choices=STATUS_CHOICES,
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default=STATUS_DEFAULT
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status = models.CharField(
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max_length=32, choices=STATUS_CHOICES, default=STATUS_DEFAULT
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)
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class VMDiskProduct(models.Model):
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"""
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The VMDiskProduct is attached to a VM.
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@ -109,6 +102,21 @@ class VMDiskProduct(models.Model):
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size_in_gb = models.FloatField(blank=True)
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# Sample code for clean method
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# Ensures that a VMDiskProduct can only be created from a VMDiskImageProduct
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# that is in status 'active'
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# def clean(self):
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# if self.image.status != 'active':
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# raise ValidationError({
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# 'image': 'VM Disk must be created from an active disk image.'
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# })
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def save(self, *args, **kwargs):
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self.full_clean()
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super().save(*args, **kwargs)
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class VMNetworkCard(models.Model):
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vm = models.ForeignKey(VMProduct, on_delete=models.CASCADE)
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107
uncloud/uncloud_vm/tests.py
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107
uncloud/uncloud_vm/tests.py
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@ -0,0 +1,107 @@
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import datetime
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from django.test import TestCase
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from django.contrib.auth import get_user_model
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from django.utils import timezone
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from django.core.exceptions import ValidationError
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from uncloud_vm.models import VMDiskImageProduct, VMDiskProduct, VMProduct, VMHost
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from uncloud_pay.models import Order
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User = get_user_model()
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# If you want to check the test database then use the following connecting parameters
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# host: localhost
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# database: test_uncloud
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# user: root
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# password:
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# port: 5432
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class VMTestCase(TestCase):
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@classmethod
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def setUpClass(cls):
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# Setup vm host
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cls.vm_host, created = VMHost.objects.get_or_create(
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hostname='server1.place11.ungleich.ch', physical_cores=32, usable_cores=320,
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usable_ram_in_gb=512.0, status='active'
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)
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super().setUpClass()
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def setUp(self) -> None:
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# Setup two users as it is common to test with different user
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self.user = User.objects.create_user(
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username='testuser', email='test@test.com', first_name='Test', last_name='User'
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)
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self.user2 = User.objects.create_user(
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username='Meow', email='meow123@test.com', first_name='Meow', last_name='Cat'
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)
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super().setUp()
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def create_sample_vm(self, owner):
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return VMProduct.objects.create(
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vmhost=self.vm_host, cores=2, ram_in_gb=4, owner=owner,
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order=Order.objects.create(
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owner=owner,
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creation_date=datetime.datetime.now(tz=timezone.utc),
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starting_date=datetime.datetime.now(tz=timezone.utc),
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ending_date=datetime.datetime(2020, 4, 2, tzinfo=timezone.utc),
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recurring_price=4.0, one_time_price=5.0, recurring_period='per_month'
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)
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)
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def test_disk_product(self):
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"""Ensures that a VMDiskProduct can only be created from a VMDiskImageProduct
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that is in status 'active'"""
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vm = self.create_sample_vm(owner=self.user)
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pending_disk_image = VMDiskImageProduct.objects.create(
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owner=self.user, name='alpine3.11', is_os_image=True, is_public=True, size_in_gb=10,
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status='pending'
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)
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try:
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vm_disk_product = VMDiskProduct.objects.create(
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owner=self.user, vm=vm, image=pending_disk_image, size_in_gb=10
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)
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except ValidationError:
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vm_disk_product = None
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self.assertIsNone(
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vm_disk_product,
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msg='VMDiskProduct created with disk image whose status is not active.'
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)
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def test_vm_disk_product_creation(self):
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"""Ensure that a user can only create a VMDiskProduct for an existing VM"""
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disk_image = VMDiskImageProduct.objects.create(
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owner=self.user, name='alpine3.11', is_os_image=True, is_public=True, size_in_gb=10,
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status='active'
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)
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with self.assertRaises(ValidationError, msg='User created a VMDiskProduct for non-existing VM'):
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# Create VMProduct object but don't save it in database
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vm = VMProduct()
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vm_disk_product = VMDiskProduct.objects.create(
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owner=self.user, vm=vm, image=disk_image, size_in_gb=10
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)
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def test_vm_disk_product_creation_for_someone_else(self):
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"""Ensure that a user can only create a VMDiskProduct for his/her own VM"""
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# Create a VM which is ownership of self.user2
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someone_else_vm = self.create_sample_vm(owner=self.user2)
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# 'self.user' would try to create a VMDiskProduct for 'user2's VM
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with self.assertRaises(ValidationError, msg='User created a VMDiskProduct for someone else VM.'):
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vm_disk_product = VMDiskProduct.objects.create(
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owner=self.user, vm=someone_else_vm,
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size_in_gb=10,
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image=VMDiskImageProduct.objects.create(
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owner=self.user, name='alpine3.11', is_os_image=True, is_public=True, size_in_gb=10,
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status='active'
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)
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)
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