"""Behavioral tests. Author: Sandeep Belgavi."""
import unittest
from pattern_01 import Decision, run, demo_adapter

class BoundedTests(unittest.TestCase):
    def test_completion_requires_read(self):
        self.assertEqual(run(demo_adapter, {"latency": "high"})["status"], "complete")
    def test_unfounded_finish(self):
        self.assertEqual(run(lambda _: Decision("finish"), {})["status"], "unsupported")
    def test_write_denied(self):
        self.assertEqual(run(lambda _: Decision("restart"), {})["status"], "denied")
    def test_limit(self):
        self.assertEqual(run(demo_adapter, {"latency": "high"}, 1)["status"], "exhausted")
    def test_repeated_read(self):
        self.assertEqual(run(lambda _: Decision("read", "x"), {"x": 1})["status"], "repeated")
    def test_invalid_adapter(self):
        self.assertEqual(run(lambda _: "finish", {})["status"], "invalid")
        self.assertEqual(run(lambda _: Decision("read", []), {})["status"], "invalid")
    def test_adapter_error(self):
        def fail(_): raise RuntimeError("synthetic")
        self.assertEqual(run(fail, {})["status"], "adapter_error")
    def test_invalid_budget(self):
        for n in (0, -1, True, 101):
            with self.assertRaises(ValueError): run(demo_adapter, {}, n)

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