"""Author: Sandeep Belgavi. Release identity and gate tests."""
import unittest
from pattern_14 import Bundle, ReleaseGate


class ReleaseTests(unittest.TestCase):
    def setUp(self):
        self.base = Bundle('c1', 'p1', 'm1', 't1', 's1')
        self.new = Bundle('c2', 'p2', 'm1', 't1', 's1')
        self.g = ReleaseGate(self.base, self.new)

    def test_prompt_changes_bundle_identity(self):
        changed = Bundle('c1', 'p2', 'm1', 't1', 's1')
        self.assertNotEqual(self.base.digest(), changed.digest())

    def test_incompatible_schema_rejected(self):
        with self.assertRaises(ValueError): ReleaseGate(self.base, Bundle('c2','p2','m1','t1','s2'))

    def test_insufficient_observation_holds(self):
        self.assertEqual(self.g.assess(100, 0, 19, 0, approved=True), 'hold')
        self.assertEqual(self.g.active, self.base)

    def test_bad_quality_rolls_back(self):
        self.assertEqual(self.g.assess(100, 0, 20, 5, approved=True), 'rollback')

    def test_requires_approval(self):
        self.assertEqual(self.g.assess(100, 0, 20, 0), 'await_approval')
        self.assertEqual(self.g.active, self.base)

    def test_authorization_violation_overrides_good_average(self):
        self.g.assess(100, 0, 20, 0, approved=True)
        self.assertEqual(self.g.assess(100, 0, 20, 0, unauthorized=1), 'rollback')
        self.assertEqual(self.g.active, self.base)

    def test_invalid_counts_rejected(self):
        with self.assertRaises(ValueError): self.g.assess(10, 11, 20, 0)

    def test_cohort_stable_and_boundaries(self):
        self.assertEqual(self.g.cohort('a','INC-1'), self.g.cohort('a','INC-1'))
        self.assertEqual(ReleaseGate(self.base,self.new,0).cohort('a','1'), 'baseline')
        self.assertEqual(ReleaseGate(self.base,self.new,100).cohort('a','1'), 'candidate')


if __name__ == '__main__': unittest.main()