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# Copyright 2011 Canonical Ltd. This software is licensed under the
# GNU Affero General Public License version 3 (see the file LICENSE).
"""Tests that the triggers to maintain the branch table transitively_private
column work correctly."""
__metaclass__ = type
import unittest
from lp.services.database.sqlbase import cursor
from lp.testing.layers import LaunchpadZopelessLayer
class BranchPrivacyTriggersTestCase(unittest.TestCase):
layer = LaunchpadZopelessLayer
def setUp(self):
LaunchpadZopelessLayer.switchDbUser('testadmin')
self.branch_ids = dict()
def createBranches(self):
# Create branches 1, 2, 3, 4, 5
# 3 is private
# 4 stacked on 3 at insert time
# 2 stacked on 5
# 6 stacked on 1 at insert time
cur = cursor()
for x in range(7):
is_private = 'True' if x == 3 else 'False'
if x == 4:
stacked_on = self.branch_ids[3]
elif x == 6:
stacked_on = self.branch_ids[1]
else:
stacked_on = 'NULL'
cur.execute("""
INSERT INTO Branch (
name, private, stacked_on, owner, registrant, branch_type
)
VALUES ('branch%d', %s, %s, 1, 1, 1)
RETURNING id
""" % (x, is_private, stacked_on))
branch_id = cur.fetchone()[0]
self.branch_ids[x] = branch_id
self.updateStackedOnForBranch(2, 5)
def check_branch_privacy(self, branch_num, expected_private,
expected_transitively_private):
# Check branch_num has the expected privacy attributes.
is_private = 'True' if expected_private else 'False'
is_transitively_private = ('True'
if expected_transitively_private else 'False')
cur = cursor()
cur.execute("""
SELECT COUNT(*)
FROM Branch
WHERE id = %s
AND private is %s
AND transitively_private is %s
""" % (self.branch_ids[branch_num],
is_private, is_transitively_private))
self.failUnlessEqual(cur.fetchone()[0], 1)
def updateStackedOnForBranch(self, branch_num, stacked_on):
# Update the stacked_on attribute for a branch.
cur = cursor()
if stacked_on:
stacked_on = self.branch_ids[stacked_on]
else:
stacked_on = 'NULL'
cur.execute("""
UPDATE Branch
SET stacked_on = %s
WHERE id = %s
""" % (stacked_on, self.branch_ids[branch_num]))
def updatePrivacyForBranch(self, branch_num, private):
# Update the private attribute for a branch.
is_private = 'True' if private else 'False'
cur = cursor()
cur.execute("""
UPDATE Branch
SET private = %s
WHERE id = %s
""" % (is_private, self.branch_ids[branch_num]))
def testInitialBranches(self):
# Branch inserts invokes the trigger correctly.
self.createBranches()
self.check_branch_privacy(1, False, False)
self.check_branch_privacy(3, True, True)
self.check_branch_privacy(4, False, True)
self.check_branch_privacy(6, False, False)
def testSetStackedOn(self):
# Stack 1 on 3 which is private.
# 1 should be transitively private.
self.createBranches()
self.updateStackedOnForBranch(1, 3)
self.check_branch_privacy(1, False, True)
def testMultiLevelStackedOn(self):
# 2 is stacked on 5 already.
# Make 5 private, stack 1 on 2.
# 1 and 2 should be transitively private.
self.createBranches()
self.updatePrivacyForBranch(5, True)
self.check_branch_privacy(5, True, True)
self.check_branch_privacy(2, False, True)
self.updateStackedOnForBranch(1, 2)
self.check_branch_privacy(1, False, True)
self.check_branch_privacy(2, False, True)
def testMultiLevelMultiStackedOn(self):
# 2 is stacked on 5 already.
# Stack 4 on 1.
# Make 5 private, stack 1 on 2.
# 1, 2 and 4 should be transitively private.
self.createBranches()
self.updateStackedOnForBranch(4, 1)
self.check_branch_privacy(4, False, False)
self.updatePrivacyForBranch(5, True)
self.check_branch_privacy(5, True, True)
self.check_branch_privacy(2, False, True)
self.updateStackedOnForBranch(1, 2)
self.check_branch_privacy(1, False, True)
self.check_branch_privacy(2, False, True)
self.check_branch_privacy(4, False, True)
def testRemoveStackedOn(self):
# 5 is private, 1 stacked on 5, so 1 is transitively private.
# Unstack 1.
# 1 should no longer be be transitively private.
self.createBranches()
self.updateStackedOnForBranch(1, 5)
self.updatePrivacyForBranch(5, True)
self.check_branch_privacy(1, False, True)
self.updateStackedOnForBranch(1, None)
self.check_branch_privacy(1, False, False)
def testSetPrivateTrue(self):
# Stack 1 on 5, make 5 private.
# 1 should be transitively private.
self.createBranches()
self.updateStackedOnForBranch(1, 5)
self.check_branch_privacy(1, False, False)
self.updatePrivacyForBranch(5, True)
self.check_branch_privacy(5, True, True)
self.check_branch_privacy(1, False, True)
def testMultiLevelSetPrivateTrue(self):
# 2 is stacked on 5 already.
# Stack 4 on 1, stack 1 on 2
# Make 5 private.
# 1, 2 and 4 should be transitively private.
self.createBranches()
self.updateStackedOnForBranch(4, 1)
self.check_branch_privacy(4, False, False)
self.updateStackedOnForBranch(1, 2)
self.check_branch_privacy(2, False, False)
self.updatePrivacyForBranch(5, True)
self.check_branch_privacy(5, True, True)
self.check_branch_privacy(1, False, True)
self.check_branch_privacy(2, False, True)
self.check_branch_privacy(4, False, True)
def testSetPrivateFalse(self):
# Make 5 private, stack 1 on 5.
# Make 5 public.
# 1 should not be transitively private.
self.createBranches()
self.updatePrivacyForBranch(5, True)
self.updateStackedOnForBranch(1, 5)
self.check_branch_privacy(1, False, True)
self.updatePrivacyForBranch(5, False)
self.check_branch_privacy(5, False, False)
self.check_branch_privacy(1, False, False)
def testMultlLevelSetPrivateFalse(self):
# 2 is stacked on 5 already.
# Make 5 private.
# Stack 4 on 1, stack 1 on 2
# Make 5 public.
# 1, 2 and 4 should not be transitively private.
self.createBranches()
self.updatePrivacyForBranch(5, True)
self.updateStackedOnForBranch(4, 1)
self.updateStackedOnForBranch(1, 2)
self.check_branch_privacy(1, False, True)
self.check_branch_privacy(2, False, True)
self.check_branch_privacy(4, False, True)
self.check_branch_privacy(5, True, True)
self.updatePrivacyForBranch(5, False)
self.check_branch_privacy(1, False, False)
self.check_branch_privacy(2, False, False)
self.check_branch_privacy(4, False, False)
self.check_branch_privacy(5, False, False)
def testLoopedStackedOn(self):
# It's possible, although nonsensical, for branch stackings to form a
# loop. e.g., branch A is stacked on branch B is stacked on branch A.
# 2 is stacked on 5 already.
# Stack 1 on 2, stack 5 on 1, completing a 1->2->5 loop.
# Stack 3 on 3, the trivial case.
self.createBranches()
self.updateStackedOnForBranch(1, 2)
self.updateStackedOnForBranch(5, 1)
self.updateStackedOnForBranch(3, 3)
self.updatePrivacyForBranch(5, True)
self.updatePrivacyForBranch(3, False)
self.check_branch_privacy(5, True, True)
self.check_branch_privacy(1, False, True)
self.check_branch_privacy(2, False, True)
self.check_branch_privacy(3, False, False)
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