245 lines
9.0 KiB
Python
245 lines
9.0 KiB
Python
import pytest
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from netbox_services.engine.resolver import Resolver, ConflictError
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from netbox_services.models import Service, ServiceResourceBinding, ServiceTemplate
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@pytest.fixture
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def site(db):
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from dcim.models import Site
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return Site.objects.create(name="resolver-site", slug="resolver-site")
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@pytest.fixture
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def device_type(db):
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from dcim.models import DeviceType, Manufacturer
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mfr = Manufacturer.objects.create(name="resolver-mfr", slug="resolver-mfr")
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return DeviceType.objects.create(manufacturer=mfr, model="resolver-model", slug="resolver-model")
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@pytest.fixture
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def role(db):
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from dcim.models import DeviceRole
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return DeviceRole.objects.create(name="resolver-role", slug="resolver-role")
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@pytest.fixture
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def devices(site, device_type, role, db):
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from dcim.models import Device
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return [
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Device.objects.create(name="dev-a", site=site, device_type=device_type, role=role),
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Device.objects.create(name="dev-b", site=site, device_type=device_type, role=role),
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]
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@pytest.fixture
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def prefix(db):
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from ipam.models import Prefix
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return Prefix.objects.create(prefix="10.200.0.0/24")
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@pytest.fixture
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def tenant(db):
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from tenancy.models import Tenant
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return Tenant.objects.create(name="res-tenant", slug="res-tenant")
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@pytest.fixture
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def service_with_devices(db, devices, tenant):
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tmpl = ServiceTemplate.objects.create(
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name="dev-tmpl",
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status="active",
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tree=[{
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"name": "routers",
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"object_type": "dcim.device",
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"quantity": 2,
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"selector": {"type": "netbox_filter", "filters": {"role": ["resolver-role"]}},
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"scope": "service",
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"children": [],
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}],
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)
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return Service.objects.create(name="dev-svc", service_template=tmpl, tenant=tenant)
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@pytest.fixture
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def service_with_ip_alloc(db, prefix, tenant):
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tmpl = ServiceTemplate.objects.create(
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name="ip-tmpl",
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status="active",
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tree=[{
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"name": "ip",
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"object_type": "ipam.ipaddress",
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"quantity": 1,
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"allocation": {
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"strategy": "first_free",
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"prefix": {"type": "prefix", "filters": {}},
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},
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"scope": "service",
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"children": [],
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}],
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)
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return Service.objects.create(name="ip-svc", service_template=tmpl, tenant=tenant)
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@pytest.mark.django_db
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class TestResolverDryRun:
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def test_dry_run_no_bindings(self, service_with_devices):
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resolver = Resolver()
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result = resolver.resolve(service_with_devices, mode="dry_run")
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assert result.total_planned == 2
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assert ServiceResourceBinding.objects.filter(service=service_with_devices).count() == 0
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def test_dry_run_rolls_back_allocation(self, service_with_ip_alloc):
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from ipam.models import IPAddress
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resolver = Resolver()
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result = resolver.resolve(service_with_ip_alloc, mode="dry_run")
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assert result.total_planned == 1
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assert IPAddress.objects.count() == 0
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assert ServiceResourceBinding.objects.count() == 0
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@pytest.mark.django_db
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class TestResolverCommit:
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def test_commit_creates_bindings(self, service_with_devices):
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resolver = Resolver()
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result = resolver.resolve(service_with_devices, mode="commit")
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assert result.succeeded
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assert ServiceResourceBinding.objects.filter(service=service_with_devices).count() == 2
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def test_commit_allocates_ip(self, service_with_ip_alloc):
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from ipam.models import IPAddress
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resolver = Resolver()
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result = resolver.resolve(service_with_ip_alloc, mode="commit")
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assert IPAddress.objects.count() == 1
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assert ServiceResourceBinding.objects.filter(service=service_with_ip_alloc).count() == 1
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def test_commit_nested(self, db, devices, prefix, tenant):
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from ipam.models import IPAddress
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from dcim.models import Interface
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for dev in devices:
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Interface.objects.create(device=dev, name="eth0")
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tmpl = ServiceTemplate.objects.create(
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name="nested-tmpl",
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status="active",
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tree=[{
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"name": "routers",
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"object_type": "dcim.device",
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"quantity": 1,
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"selector": {"type": "netbox_filter", "filters": {"role": ["resolver-role"]}},
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"scope": "service",
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"children": [{
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"name": "ip",
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"object_type": "ipam.ipaddress",
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"quantity": 1,
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"allocation": {
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"strategy": "first_free",
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"prefix": {"type": "prefix", "filters": {}},
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},
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"scope": "parent",
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"children": [],
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}],
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}],
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)
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svc = Service.objects.create(name="nested-svc", service_template=tmpl, tenant=tenant)
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resolver = Resolver()
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result = resolver.resolve(svc, mode="commit")
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assert result.succeeded
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assert ServiceResourceBinding.objects.filter(service=svc).count() == 2
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@pytest.mark.django_db
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class TestReconciliation:
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def test_reresolve_no_change(self, service_with_devices):
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resolver = Resolver()
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resolver.resolve(service_with_devices, mode="commit")
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result = resolver.resolve(service_with_devices, mode="commit")
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assert len(result.to_add) == 0
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assert len(result.to_remove) == 0
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assert ServiceResourceBinding.objects.filter(service=service_with_devices).count() == 2
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def test_reresolve_reuses_allocated(self, service_with_ip_alloc):
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from ipam.models import IPAddress
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resolver = Resolver()
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resolver.resolve(service_with_ip_alloc, mode="commit")
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ip_count_before = IPAddress.objects.count()
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result = resolver.resolve(service_with_ip_alloc, mode="commit")
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assert len(result.to_add) == 0
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assert IPAddress.objects.count() == ip_count_before
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def test_reresolve_removes_stale(self, service_with_devices, devices):
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resolver = Resolver()
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result = resolver.resolve(service_with_devices, mode="commit")
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assert ServiceResourceBinding.objects.filter(service=service_with_devices).count() == 2
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svc_tmpl = service_with_devices.service_template
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svc_tmpl.tree[0]["quantity"] = 1
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# Template is locked — bypass via queryset
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ServiceTemplate.objects.filter(pk=svc_tmpl.pk).update(tree=svc_tmpl.tree)
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service_with_devices.refresh_from_db()
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service_with_devices.service_template.refresh_from_db()
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result2 = resolver.resolve(service_with_devices, mode="commit")
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assert len(result2.to_remove) >= 1
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assert ServiceResourceBinding.objects.filter(service=service_with_devices).count() == 1
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@pytest.mark.django_db
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class TestConflictDetection:
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def test_exclusion_when_device_already_bound(self, db, site, device_type, role, tenant):
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from dcim.models import Device
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dev = Device.objects.create(name="conflict-dev", site=site, device_type=device_type, role=role)
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tmpl = ServiceTemplate.objects.create(
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name="conflict-tmpl",
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status="active",
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tree=[{
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"name": "dev",
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"object_type": "dcim.device",
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"quantity": 1,
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"selector": {"type": "netbox_filter", "filters": {"role": ["resolver-role"]}},
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"scope": "service",
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"children": [],
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}],
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)
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svc1 = Service.objects.create(name="c-svc-1", service_template=tmpl, tenant=tenant)
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svc2 = Service.objects.create(name="c-svc-2", service_template=tmpl, tenant=tenant)
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resolver = Resolver()
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r1 = resolver.resolve(svc1, mode="commit")
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assert r1.succeeded
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assert ServiceResourceBinding.objects.filter(service=svc1).count() == 1
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r2 = resolver.resolve(svc2, mode="commit")
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assert r2.succeeded
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assert ServiceResourceBinding.objects.filter(service=svc2).count() == 0
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assert any("only 0 of 1" in w for w in r2.warnings)
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def test_no_conflict_different_devices(self, db, devices, tenant):
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tmpl = ServiceTemplate.objects.create(
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name="noconf-tmpl",
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status="active",
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tree=[{
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"name": "dev",
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"object_type": "dcim.device",
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"quantity": 1,
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"selector": {"type": "netbox_filter", "filters": {"role": ["resolver-role"]}},
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"scope": "service",
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"children": [],
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}],
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)
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svc1 = Service.objects.create(name="nc-svc-1", service_template=tmpl, tenant=tenant)
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svc2 = Service.objects.create(name="nc-svc-2", service_template=tmpl, tenant=tenant)
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resolver = Resolver()
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r1 = resolver.resolve(svc1, mode="commit")
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assert r1.succeeded
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r2 = resolver.resolve(svc2, mode="commit")
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assert r2.succeeded
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b1 = ServiceResourceBinding.objects.filter(service=svc1).first()
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b2 = ServiceResourceBinding.objects.filter(service=svc2).first()
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assert b1.object_id != b2.object_id
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