Add test utils and tests for quick booking

Change-Id: Ie76c6fe26622ca8363055b8ebbe0dc6deaed5824
Signed-off-by: Sawyer Bergeron <sawyerbergeron@gmail.com>
Signed-off-by: Parker Berberian <pberberian@iol.unh.edu>

3 files changed, 290 insertions, 80 deletions

diff --git a/src/booking/quick_deployer.py b/src/booking/quick_deployer.py
index 7946ebf..dd78f15 100644
--- a/src/booking/quick_deployer.py
+++ b/src/booking/quick_deployer.py
@@ -38,7 +38,8 @@ from booking.models import Booking
 from dashboard.exceptions import (
     InvalidHostnameException,
     ResourceAvailabilityException,
-    ModelValidationException
+    ModelValidationException,
+    BookingLengthException
 )
 from api.models import JobFactory
 
@@ -88,22 +89,8 @@ class NoRemainingPublicNetwork(Exception):
     pass
 
 
-def create_from_form(form, request):
-    quick_booking_id = str(uuid.uuid4())
-
-    host_field = form.cleaned_data['filter_field']
-    host_json = json.loads(host_field)
-    purpose_field = form.cleaned_data['purpose']
-    project_field = form.cleaned_data['project']
-    users_field = form.cleaned_data['users']
-    host_name = form.cleaned_data['hostname']
-    length = form.cleaned_data['length']
-
-    image = form.cleaned_data['image']
-    scenario = form.cleaned_data['scenario']
-    installer = form.cleaned_data['installer']
-
-    # get all initial info we need to validate
+def parse_host_field(host_field_contents):
+    host_json = json.loads(host_field_contents)
     lab_dict = host_json['labs'][0]
     lab_id = list(lab_dict.keys())[0]
     lab_user_id = int(lab_id.split("_")[-1])
@@ -115,110 +102,185 @@ def create_from_form(form, request):
     profile = HostProfile.objects.get(id=profile_id)
 
     # check validity of field data before trying to apply to models
+    if len(host_json['labs']) != 1:
+        raise NoLabSelectedError("No lab was selected")
     if not lab:
         raise LabDNE("Lab with provided ID does not exist")
     if not profile:
         raise HostProfileDNE("Host type with provided ID does not exist")
 
-    # check that hostname is valid
-    if not re.match(r"(?=^.{1,253}$)(^([A-Za-z0-9-_]{1,62}\.)*[A-Za-z0-9-_]{1,63})$", host_name):
-        raise InvalidHostnameException("Hostname must comply to RFC 952 and all extensions to it until this point")
-    # check that image os is compatible with installer
-    if installer in image.os.sup_installers.all():
-        # if installer not here, we can omit that and not check for scenario
-        if not scenario:
-            raise IncompatibleScenarioForInstaller("An OPNFV Installer needs a scenario to be chosen to work properly")
-        if scenario not in installer.sup_scenarios.all():
-            raise IncompatibleScenarioForInstaller("The chosen installer does not support the chosen scenario")
-    if image.from_lab != lab:
-        raise ImageNotAvailableAtLab("The chosen image is not available at the chosen hosting lab")
-    if image.host_type != profile:
-        raise IncompatibleImageForHost("The chosen image is not available for the chosen host type")
-    if not image.public and image.owner != request.user:
-        raise ImageOwnershipInvalid("You are not the owner of the chosen private image")
+    return lab, profile
+
 
-    # check if host type is available
-    # ResourceManager.getInstance().acquireHost(ghost, lab.name)
+def check_available_matching_host(lab, hostprofile):
     available_host_types = ResourceManager.getInstance().getAvailableHostTypes(lab)
-    if profile not in available_host_types:
+    if hostprofile not in available_host_types:
         # TODO: handle deleting generic resource in this instance along with grb
         raise HostNotAvailable("Could not book selected host due to changed availability. Try again later")
 
-    # check if any hosts with profile at lab are still available
-    hostset = Host.objects.filter(lab=lab, profile=profile).filter(booked=False).filter(working=True)
-    if not hostset.first():
+    hostset = Host.objects.filter(lab=lab, profile=hostprofile).filter(booked=False).filter(working=True)
+    if not hostset.exists():
         raise HostNotAvailable("Couldn't find any matching unbooked hosts")
 
-    # generate GenericResourceBundle
-    if len(host_json['labs']) != 1:
-        raise NoLabSelectedError("No lab was selected")
+    return True
+
 
-    grbundle = GenericResourceBundle(owner=request.user)
+def generate_grb(owner, lab, common_id):
+    grbundle = GenericResourceBundle(owner=owner)
     grbundle.lab = lab
-    grbundle.name = "grbundle for quick booking with uid " + quick_booking_id
+    grbundle.name = "grbundle for quick booking with uid " + common_id
     grbundle.description = "grbundle created for quick-deploy booking"
     grbundle.save()
 
-    # generate GenericResource, GenericHost
-    gresource = GenericResource(bundle=grbundle, name=host_name)
+    return grbundle
+
+
+def generate_gresource(bundle, hostname):
+    if not re.match(r"(?=^.{1,253}$)(^([A-Za-z0-9-_]{1,62}\.)*[A-Za-z0-9-_]{1,63})$", hostname):
+        raise InvalidHostnameException("Hostname must comply to RFC 952 and all extensions to it until this point")
+    gresource = GenericResource(bundle=bundle, name=hostname)
     gresource.save()
 
+    return gresource
+
+
+def generate_ghost(generic_resource, host_profile):
     ghost = GenericHost()
-    ghost.resource = gresource
-    ghost.profile = profile
+    ghost.resource = generic_resource
+    ghost.profile = host_profile
     ghost.save()
 
-    # generate config bundle
+    return ghost
+
+
+def generate_config_bundle(owner, common_id, grbundle):
     cbundle = ConfigBundle()
-    cbundle.owner = request.user
-    cbundle.name = "configbundle for quick booking  with uid " + quick_booking_id
+    cbundle.owner = owner
+    cbundle.name = "configbundle for quick booking with uid " + common_id
     cbundle.description = "configbundle created for quick-deploy booking"
     cbundle.bundle = grbundle
     cbundle.save()
 
-    # generate OPNFVConfig pointing to cbundle
-    if installer:
-        opnfvconfig = OPNFVConfig()
-        opnfvconfig.scenario = scenario
-        opnfvconfig.installer = installer
-        opnfvconfig.bundle = cbundle
-        opnfvconfig.save()
+    return cbundle
+
+
+def generate_opnfvconfig(scenario, installer, config_bundle):
+    opnfvconfig = OPNFVConfig()
+    opnfvconfig.scenario = scenario
+    opnfvconfig.installer = installer
+    opnfvconfig.bundle = config_bundle
+    opnfvconfig.save()
+
+    return opnfvconfig
+
 
-    # generate HostConfiguration pointing to cbundle
+def generate_hostconfig(generic_host, image, config_bundle):
     hconf = HostConfiguration()
-    hconf.host = ghost
+    hconf.host = generic_host
     hconf.image = image
-    hconf.opnfvRole = OPNFVRole.objects.get(name="Jumphost")
-    if not hconf.opnfvRole:
-        raise OPNFVRoleDNE("No jumphost role was found")
-    hconf.bundle = cbundle
+
+    opnfvrole = OPNFVRole.objects.get(name="Jumphost")
+    if not opnfvrole:
+        raise OPNFVRoleDNE("No jumphost role was found.")
+
+    hconf.opnfvRole = opnfvrole
+    hconf.bundle = config_bundle
     hconf.save()
 
+    return hconf
+
+
+def generate_resource_bundle(generic_resource_bundle, config_bundle):  # warning: requires cleanup
+    try:
+        resource_manager = ResourceManager.getInstance()
+        resource_bundle = resource_manager.convertResourceBundle(generic_resource_bundle, config=config_bundle)
+        return resource_bundle
+    except ResourceAvailabilityException:
+        raise ResourceAvailabilityException("Requested resources not available")
+    except ModelValidationException:
+        raise ModelValidationException("Encountered error while saving grbundle")
+
+
+def check_invariants(request, **kwargs):
+    installer = kwargs['installer']
+    image = kwargs['image']
+    scenario = kwargs['scenario']
+    lab = kwargs['lab']
+    host_profile = kwargs['host_profile']
+    length = kwargs['length']
+    # check that image os is compatible with installer
+    if installer in image.os.sup_installers.all():
+        # if installer not here, we can omit that and not check for scenario
+        if not scenario:
+            raise IncompatibleScenarioForInstaller("An OPNFV Installer needs a scenario to be chosen to work properly")
+        if scenario not in installer.sup_scenarios.all():
+            raise IncompatibleScenarioForInstaller("The chosen installer does not support the chosen scenario")
+    if image.from_lab != lab:
+        raise ImageNotAvailableAtLab("The chosen image is not available at the chosen hosting lab")
+    if image.host_type != host_profile:
+        raise IncompatibleImageForHost("The chosen image is not available for the chosen host type")
+    if not image.public and image.owner != request.user:
+        raise ImageOwnershipInvalid("You are not the owner of the chosen private image")
+    if length < 1 or length > 21:
+        raise BookingLengthException("Booking must be between 1 and 21 days long")
+
+
+def create_from_form(form, request):
+    quick_booking_id = str(uuid.uuid4())
+
+    host_field = form.cleaned_data['filter_field']
+    purpose_field = form.cleaned_data['purpose']
+    project_field = form.cleaned_data['project']
+    users_field = form.cleaned_data['users']
+    hostname = form.cleaned_data['hostname']
+    length = form.cleaned_data['length']
+
+    image = form.cleaned_data['image']
+    scenario = form.cleaned_data['scenario']
+    installer = form.cleaned_data['installer']
+
+    lab, host_profile = parse_host_field(host_field)
+    data = form.cleaned_data
+    data['lab'] = lab
+    data['host_profile'] = host_profile
+    check_invariants(request, **data)
+
+    check_available_matching_host(lab, host_profile)  # requires cleanup if failure after this point
+
+    grbundle = generate_grb(request.user, lab, quick_booking_id)
+
+    gresource = generate_gresource(grbundle, hostname)
+
+    ghost = generate_ghost(gresource, host_profile)
+
+    cbundle = generate_config_bundle(request.user, quick_booking_id, grbundle)
+
+    # if no installer provided, just create blank host
+    if installer:
+        generate_opnfvconfig(scenario, installer, cbundle)
+
+    generate_hostconfig(ghost, image, cbundle)
+
     # construct generic interfaces
-    for interface_profile in profile.interfaceprofile.all():
+    for interface_profile in host_profile.interfaceprofile.all():
         generic_interface = GenericInterface.objects.create(profile=interface_profile, host=ghost)
         generic_interface.save()
-    ghost.save()
 
     # get vlan, assign to first interface
     publicnetwork = lab.vlan_manager.get_public_vlan()
-    publicvlan = publicnetwork.vlan
     if not publicnetwork:
         raise NoRemainingPublicNetwork("No public networks were available for your pod")
+    publicvlan = publicnetwork.vlan
     lab.vlan_manager.reserve_public_vlan(publicvlan)
 
     vlan = Vlan.objects.create(vlan_id=publicvlan, tagged=False, public=True)
     vlan.save()
+
     ghost.generic_interfaces.first().vlans.add(vlan)
     ghost.generic_interfaces.first().save()
 
     # generate resource bundle
-    try:
-        resource_bundle = ResourceManager.getInstance().convertResourceBundle(grbundle, config=cbundle)
-    except ResourceAvailabilityException:
-        raise ResourceAvailabilityException("Requested resources not available")
-    except ModelValidationException:
-        raise ModelValidationException("Encountered error while saving grbundle")
+    resource_bundle = generate_resource_bundle(grbundle, cbundle)
 
     # generate booking
     booking = Booking()
diff --git a/src/booking/tests/test_models.py b/src/booking/tests/test_models.py
index c7fb25d..6170295 100644
--- a/src/booking/tests/test_models.py
+++ b/src/booking/tests/test_models.py
@@ -230,10 +230,3 @@ class BookingModelTestCase(TestCase):
             booking.save()
         except Exception:
             self.fail("save() threw an exception")
-        booking.end = booking.end + timedelta(weeks=2)
-        self.assertRaises(ValueError, booking.save)
-        booking.end = booking.end - timedelta(days=8)
-        try:
-            self.assertTrue(booking.save())
-        except Exception:
-            self.fail("save() threw an exception")
diff --git a/src/booking/tests/test_quick_booking.py b/src/booking/tests/test_quick_booking.py
new file mode 100644
index 0000000..936a9a5
--- /dev/null
+++ b/src/booking/tests/test_quick_booking.py
@@ -0,0 +1,155 @@
+##############################################################################
+# Copyright (c) 2018 Parker Berberian, Sawyer Bergeron, and others.
+#
+# All rights reserved. This program and the accompanying materials
+# are made available under the terms of the Apache License, Version 2.0
+# which accompanies this distribution, and is available at
+# http://www.apache.org/licenses/LICENSE-2.0
+##############################################################################
+
+import datetime
+
+from django.test import TestCase, Client
+
+from booking.models import Booking
+from dashboard.testing_utils import (
+    instantiate_host,
+    instantiate_user,
+    instantiate_userprofile,
+    instantiate_lab,
+    instantiate_installer,
+    instantiate_image,
+    instantiate_scenario,
+    instantiate_os,
+    make_hostprofile_set,
+    instantiate_opnfvrole,
+    instantiate_publicnet,
+)
+# from dashboard import test_utils
+
+
+class QuickBookingValidFormTestCase(TestCase):
+    @classmethod
+    def setUpTestData(cls):
+        cls.loginuser = instantiate_user(False, username="newtestuser", password="testpassword")
+        instantiate_userprofile(cls.loginuser, True)
+
+        lab_user = instantiate_user(True)
+        cls.lab = instantiate_lab(lab_user)
+
+        cls.host_profile = make_hostprofile_set(cls.lab)
+        cls.scenario = instantiate_scenario()
+        cls.installer = instantiate_installer([cls.scenario])
+        os = instantiate_os([cls.installer])
+        cls.image = instantiate_image(cls.lab, 1, cls.loginuser, os, cls.host_profile)
+        cls.host = instantiate_host(cls.host_profile, cls.lab)
+        cls.role = instantiate_opnfvrole()
+        cls.pubnet = instantiate_publicnet(10, cls.lab)
+
+        cls.lab_selected = 'lab_' + str(cls.lab.lab_user.id) + '_selected'
+        cls.host_selected = 'host_' + str(cls.host_profile.id) + '_selected'
+
+        cls.post_data = cls.build_post_data()
+
+        cls.client = Client()
+
+    @classmethod
+    def build_post_data(cls):
+        post_data = {}
+        post_data['filter_field'] = '{"hosts":[{"host_' + str(cls.host_profile.id) + '":"true"}], "labs": [{"lab_' + str(cls.lab.lab_user.id) + '":"true"}]}'
+        post_data['purpose'] = 'purposefieldcontentstring'
+        post_data['project'] = 'projectfieldcontentstring'
+        post_data['length'] = '3'
+        post_data['ignore_this'] = 1
+        post_data['users'] = ''
+        post_data['hostname'] = 'hostnamefieldcontentstring'
+        post_data['image'] = str(cls.image.id)
+        post_data['installer'] = str(cls.installer.id)
+        post_data['scenario'] = str(cls.scenario.id)
+        return post_data
+
+    def post(self, changed_fields={}):
+        payload = self.post_data.copy()
+        payload.update(changed_fields)
+        response = self.client.post('/booking/quick/', payload)
+        return response
+
+    def setUp(self):
+        self.client.login(
+            username=self.loginuser.username, password="testpassword")
+
+    def is_valid_booking(self, booking):
+        self.assertEqual(booking.owner, self.loginuser)
+        self.assertEqual(booking.purpose, 'purposefieldcontentstring')
+        self.assertEqual(booking.project, 'projectfieldcontentstring')
+        delta = booking.end - booking.start
+        delta -= datetime.timedelta(days=3)
+        self.assertLess(delta, datetime.timedelta(minutes=1))
+
+        resourcebundle = booking.resource
+        configbundle = booking.config_bundle
+
+        self.assertEqual(self.installer, configbundle.opnfv_config.first().installer)
+        self.assertEqual(self.scenario, configbundle.opnfv_config.first().scenario)
+        self.assertEqual(resourcebundle.template.getHosts()[0].profile, self.host_profile)
+        self.assertEqual(resourcebundle.template.getHosts()[0].resource.name, 'hostnamefieldcontentstring')
+
+        return True
+
+    def test_with_too_long_length(self):
+        response = self.post({'length': '22'})
+
+        self.assertEqual(response.status_code, 200)
+        self.assertIsNone(Booking.objects.first())
+
+    def test_with_negative_length(self):
+        response = self.post({'length': '-1'})
+
+        self.assertEqual(response.status_code, 200)
+        self.assertIsNone(Booking.objects.first())
+
+    def test_with_invalid_installer(self):
+        response = self.post({'installer': str(self.installer.id + 100)})
+
+        self.assertEqual(response.status_code, 200)
+        self.assertIsNone(Booking.objects.first())
+
+    def test_with_invalid_scenario(self):
+        response = self.post({'scenario': str(self.scenario.id + 100)})
+
+        self.assertEqual(response.status_code, 200)
+        self.assertIsNone(Booking.objects.first())
+
+    def test_with_invalid_host_id(self):
+        response = self.post({'filter_field': '{"hosts":[{"host_' + str(self.host_profile.id + 100) + '":"true"}], "labs": [{"lab_' + str(self.lab.lab_user.id) + '":"true"}]}'})
+
+        self.assertEqual(response.status_code, 200)
+        self.assertIsNone(Booking.objects.first())
+
+    def test_with_invalid_lab_id(self):
+        response = self.post({'filter_field': '{"hosts":[{"host_' + str(self.host_profile.id) + '":"true"}], "labs": [{"lab_' + str(self.lab.lab_user.id + 100) + '":"true"}]}'})
+
+        self.assertEqual(response.status_code, 200)
+        self.assertIsNone(Booking.objects.first())
+
+    def test_with_invalid_empty_filter_field(self):
+        response = self.post({'filter_field': ''})
+
+        self.assertEqual(response.status_code, 200)
+        self.assertIsNone(Booking.objects.first())
+
+    def test_with_garbage_users_field(self):  # expected behavior: treat as though field is empty if it has garbage data
+        response = self.post({'users': 'X�]QP�槰DP�+m���h�U�_�yJA:.rDi��QN|.��C��n�P��F!��D�����5ȅj�9�LV��'})  # output from /dev/urandom
+
+        self.assertEqual(response.status_code, 200)
+        booking = Booking.objects.first()
+        self.assertIsNotNone(booking)
+        self.assertTrue(self.is_valid_booking(booking))
+
+    def test_with_valid_form(self):
+        response = self.post()
+
+        self.assertEqual(response.status_code, 200)
+        booking = Booking.objects.first()
+        self.assertIsNotNone(booking)
+        self.assertTrue(self.is_valid_booking(booking))