forked from Zakaria/hermes-agent
Hermes-agent
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Zakaria
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"""Tests for credential pool preservation through turn config and 429 recovery.
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Covers:
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1. CLI _resolve_turn_agent_config passes credential_pool to runtime dict
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2. Gateway _resolve_turn_agent_config passes credential_pool to runtime dict
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3. Eager fallback deferred when credential pool has credentials
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4. Eager fallback fires when no credential pool exists
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5. Full 429 rotation cycle: retry-same → rotate → exhaust → fallback
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"""
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from types import SimpleNamespace
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from unittest.mock import MagicMock, patch
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# ---------------------------------------------------------------------------
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# 1. CLI _resolve_turn_agent_config includes credential_pool
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# ---------------------------------------------------------------------------
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class TestCliTurnRoutePool:
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def test_resolve_turn_includes_pool(self):
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"""CLI's _resolve_turn_agent_config must pass credential_pool in runtime."""
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fake_pool = MagicMock(name="FakePool")
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shell = SimpleNamespace(
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model="gpt-5.4",
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api_key="sk-test",
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base_url=None,
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provider="openai-codex",
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api_mode="codex_responses",
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acp_command=None,
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acp_args=[],
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_credential_pool=fake_pool,
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service_tier=None,
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)
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from cli import HermesCLI
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bound = HermesCLI._resolve_turn_agent_config.__get__(shell)
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route = bound("test message")
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assert route["runtime"]["credential_pool"] is fake_pool
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# ---------------------------------------------------------------------------
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# 2. Gateway _resolve_turn_agent_config includes credential_pool
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# ---------------------------------------------------------------------------
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class TestGatewayTurnRoutePool:
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def test_resolve_turn_includes_pool(self):
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"""Gateway's _resolve_turn_agent_config must pass credential_pool."""
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from gateway.run import GatewayRunner
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fake_pool = MagicMock(name="FakePool")
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runner = SimpleNamespace(_service_tier=None)
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runtime_kwargs = {
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"api_key": "***",
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"base_url": None,
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"provider": "openai-codex",
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"api_mode": "codex_responses",
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"command": None,
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"args": [],
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"credential_pool": fake_pool,
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}
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bound = GatewayRunner._resolve_turn_agent_config.__get__(runner)
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route = bound("test message", "gpt-5.4", runtime_kwargs)
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assert route["runtime"]["credential_pool"] is fake_pool
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# ---------------------------------------------------------------------------
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# 3 & 4. Eager fallback deferred/fires based on credential pool
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# ---------------------------------------------------------------------------
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class TestEagerFallbackWithPool:
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"""Test the eager fallback guard in run_agent.py's error handling loop."""
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def _make_agent(self, has_pool=True, pool_has_creds=True, has_fallback=True):
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"""Create a minimal AIAgent mock with the fields needed."""
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from run_agent import AIAgent
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with patch.object(AIAgent, "__init__", lambda self, **kw: None):
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agent = AIAgent()
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agent._credential_pool = None
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if has_pool:
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pool = MagicMock()
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pool.has_available.return_value = pool_has_creds
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agent._credential_pool = pool
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agent._fallback_chain = [{"model": "fallback/model"}] if has_fallback else []
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agent._fallback_index = 0
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agent._try_activate_fallback = MagicMock(return_value=True)
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agent._emit_status = MagicMock()
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return agent
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def test_eager_fallback_deferred_when_pool_has_credentials(self):
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"""429 with active pool should NOT trigger eager fallback."""
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agent = self._make_agent(has_pool=True, pool_has_creds=True, has_fallback=True)
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# Simulate the check from run_agent.py lines 7180-7191
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is_rate_limited = True
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if is_rate_limited and agent._fallback_index < len(agent._fallback_chain):
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pool = agent._credential_pool
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pool_may_recover = pool is not None and pool.has_available()
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if not pool_may_recover:
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agent._try_activate_fallback()
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agent._try_activate_fallback.assert_not_called()
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def test_eager_fallback_fires_when_no_pool(self):
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"""429 without pool should trigger eager fallback."""
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agent = self._make_agent(has_pool=False, has_fallback=True)
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is_rate_limited = True
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if is_rate_limited and agent._fallback_index < len(agent._fallback_chain):
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pool = agent._credential_pool
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pool_may_recover = pool is not None and pool.has_available()
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if not pool_may_recover:
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agent._try_activate_fallback()
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agent._try_activate_fallback.assert_called_once()
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def test_eager_fallback_fires_when_pool_exhausted(self):
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"""429 with exhausted pool should trigger eager fallback."""
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agent = self._make_agent(has_pool=True, pool_has_creds=False, has_fallback=True)
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is_rate_limited = True
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if is_rate_limited and agent._fallback_index < len(agent._fallback_chain):
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pool = agent._credential_pool
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pool_may_recover = pool is not None and pool.has_available()
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if not pool_may_recover:
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agent._try_activate_fallback()
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agent._try_activate_fallback.assert_called_once()
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# ---------------------------------------------------------------------------
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# 5. Full 429 rotation cycle via _recover_with_credential_pool
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# ---------------------------------------------------------------------------
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class TestPoolRotationCycle:
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"""Verify the retry-same → rotate → exhaust flow in _recover_with_credential_pool."""
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def _make_agent_with_pool(self, pool_entries=3):
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from run_agent import AIAgent
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with patch.object(AIAgent, "__init__", lambda self, **kw: None):
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agent = AIAgent()
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entries = []
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for i in range(pool_entries):
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e = MagicMock(name=f"entry_{i}")
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e.id = f"cred-{i}"
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entries.append(e)
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pool = MagicMock()
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pool.has_credentials.return_value = True
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# mark_exhausted_and_rotate returns next entry until exhausted
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self._rotation_index = 0
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def rotate(status_code=None, error_context=None):
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self._rotation_index += 1
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if self._rotation_index < pool_entries:
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return entries[self._rotation_index]
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pool.has_credentials.return_value = False
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return None
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pool.mark_exhausted_and_rotate = MagicMock(side_effect=rotate)
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agent._credential_pool = pool
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agent._swap_credential = MagicMock()
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agent.log_prefix = ""
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return agent, pool, entries
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def test_first_429_sets_retry_flag_no_rotation(self):
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"""First 429 should just set has_retried_429=True, no rotation."""
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agent, pool, _ = self._make_agent_with_pool(3)
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recovered, has_retried = agent._recover_with_credential_pool(
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status_code=429, has_retried_429=False
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)
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assert recovered is False
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assert has_retried is True
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pool.mark_exhausted_and_rotate.assert_not_called()
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def test_second_429_rotates_to_next(self):
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"""Second consecutive 429 should rotate to next credential."""
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agent, pool, entries = self._make_agent_with_pool(3)
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recovered, has_retried = agent._recover_with_credential_pool(
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status_code=429, has_retried_429=True
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)
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assert recovered is True
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assert has_retried is False # reset after rotation
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pool.mark_exhausted_and_rotate.assert_called_once_with(status_code=429, error_context=None)
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agent._swap_credential.assert_called_once_with(entries[1])
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def test_pool_exhaustion_returns_false(self):
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"""When all credentials exhausted, recovery should return False."""
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agent, pool, _ = self._make_agent_with_pool(1)
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# First 429 sets flag
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_, has_retried = agent._recover_with_credential_pool(
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status_code=429, has_retried_429=False
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)
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assert has_retried is True
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# Second 429 tries to rotate but pool is exhausted (only 1 entry)
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recovered, _ = agent._recover_with_credential_pool(
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status_code=429, has_retried_429=True
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)
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assert recovered is False
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def test_402_immediate_rotation(self):
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"""402 (billing) should immediately rotate, no retry-first."""
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agent, pool, entries = self._make_agent_with_pool(3)
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recovered, has_retried = agent._recover_with_credential_pool(
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status_code=402, has_retried_429=False
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)
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assert recovered is True
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assert has_retried is False
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pool.mark_exhausted_and_rotate.assert_called_once_with(status_code=402, error_context=None)
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def test_no_pool_returns_false(self):
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"""No pool should return (False, unchanged)."""
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from run_agent import AIAgent
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with patch.object(AIAgent, "__init__", lambda self, **kw: None):
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agent = AIAgent()
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agent._credential_pool = None
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recovered, has_retried = agent._recover_with_credential_pool(
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status_code=429, has_retried_429=False
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)
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assert recovered is False
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assert has_retried is False
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