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00cd9b2b3a
Contract tests for tools/fal_common.py: queue-URL normalization (trailing slash / whitespace / empty-raises), _extract_http_status response-vs-exc precedence and non-int rejection, the _ManagedFalSyncClient RuntimeError guards against fal_client private API drift, and submit()'s queue-URL + POST/json/timeout wiring. Trimmed on landing: test_non_string_coerced_to_string (pins an implementation accident, not a contract) per the coverage-padding policy in AGENTS.md. Salvaged from #52166.
605 lines
22 KiB
Python
605 lines
22 KiB
Python
"""Tests for tools/fal_common.py — shared FAL.ai SDK plumbing.
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Covers: import_fal_client, _normalize_fal_queue_url_format,
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_extract_http_status, _ManagedFalSyncClient (init + submit).
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"""
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import sys
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import types
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from unittest.mock import MagicMock, patch
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import pytest
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from tools.fal_common import (
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_ManagedFalSyncClient,
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_extract_http_status,
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_normalize_fal_queue_url_format,
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import_fal_client,
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)
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# ---------------------------------------------------------------------------
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# import_fal_client
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# ---------------------------------------------------------------------------
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@pytest.fixture
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def fake_fal_client(monkeypatch):
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module = types.ModuleType("fal_client")
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monkeypatch.setitem(sys.modules, "fal_client", module)
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return module
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class TestImportFalClient:
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def test_returns_fal_client_module(self, monkeypatch, fake_fal_client):
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"""import_fal_client returns the fal_client module reference."""
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ensure = MagicMock()
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monkeypatch.setattr("tools.lazy_deps.ensure", ensure)
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result = import_fal_client()
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assert result is fake_fal_client
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ensure.assert_called_once_with("image.fal", prompt=False)
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def test_lazy_ensure_import_error_is_swallowed(self, monkeypatch, fake_fal_client):
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"""If lazy_deps.ensure raises ImportError, it's swallowed (fal_client still imported)."""
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monkeypatch.setattr(
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"tools.lazy_deps.ensure",
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MagicMock(side_effect=ImportError("no lazy_deps")),
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)
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assert import_fal_client() is fake_fal_client
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def test_lazy_ensure_other_exception_raises_import_error(self):
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"""If lazy_deps.ensure raises a non-ImportError, it's re-raised as ImportError."""
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with patch("tools.lazy_deps.ensure", side_effect=RuntimeError("install hint")):
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with pytest.raises(ImportError, match="install hint"):
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import_fal_client()
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def test_lazy_ensure_module_missing_is_swallowed(self, fake_fal_client):
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"""If tools.lazy_deps itself can't be imported, ImportError is swallowed."""
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import builtins
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original_import = builtins.__import__
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def failing_import(name, *args, **kwargs):
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if name == "tools.lazy_deps":
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raise ImportError("no module")
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return original_import(name, *args, **kwargs)
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with patch("builtins.__import__", side_effect=failing_import):
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result = import_fal_client()
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assert result is fake_fal_client
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# ---------------------------------------------------------------------------
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# _normalize_fal_queue_url_format
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# ---------------------------------------------------------------------------
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class TestNormalizeFalQueueUrlFormat:
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def test_adds_trailing_slash(self):
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assert (
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_normalize_fal_queue_url_format("https://queue.example.com")
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== "https://queue.example.com/"
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)
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def test_strips_trailing_slashes_then_adds_one(self):
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assert (
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_normalize_fal_queue_url_format("https://queue.example.com///")
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== "https://queue.example.com/"
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)
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def test_strips_whitespace(self):
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assert (
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_normalize_fal_queue_url_format(" https://queue.example.com ")
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== "https://queue.example.com/"
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)
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def test_empty_string_raises(self):
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with pytest.raises(ValueError, match="Managed FAL queue origin is required"):
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_normalize_fal_queue_url_format("")
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def test_none_raises(self):
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with pytest.raises(ValueError, match="Managed FAL queue origin is required"):
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_normalize_fal_queue_url_format(None) # type: ignore[arg-type]
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def test_whitespace_only_raises(self):
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with pytest.raises(ValueError, match="Managed FAL queue origin is required"):
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_normalize_fal_queue_url_format(" ")
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# ---------------------------------------------------------------------------
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# _extract_http_status
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# ---------------------------------------------------------------------------
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class TestExtractHttpStatus:
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def test_returns_status_from_response_attribute(self):
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"""httpx.HTTPStatusError exposes .response.status_code."""
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exc = MagicMock()
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exc.response = MagicMock()
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exc.response.status_code = 404
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assert _extract_http_status(exc) == 404
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def test_returns_status_from_exc_status_code(self):
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"""fal_client wrappers expose .status_code directly."""
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exc = MagicMock()
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exc.response = None
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exc.status_code = 500
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assert _extract_http_status(exc) == 500
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def test_returns_none_when_no_response_and_no_status_code(self):
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exc = Exception("plain error")
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assert _extract_http_status(exc) is None
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def test_returns_none_when_response_is_none(self):
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exc = MagicMock()
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exc.response = None
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del exc.status_code
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assert _extract_http_status(exc) is None
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def test_returns_none_when_response_status_code_not_int(self):
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exc = MagicMock()
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exc.response = MagicMock()
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exc.response.status_code = "not-int"
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del exc.status_code
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assert _extract_http_status(exc) is None
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def test_returns_none_when_status_code_not_int(self):
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exc = MagicMock()
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exc.response = None
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exc.status_code = "not-int"
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assert _extract_http_status(exc) is None
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def test_response_status_takes_precedence_over_exc_status(self):
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exc = MagicMock()
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exc.response = MagicMock()
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exc.response.status_code = 200
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exc.status_code = 500
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assert _extract_http_status(exc) == 200
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def test_falls_back_to_exc_status_when_response_status_not_int(self):
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exc = MagicMock()
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exc.response = MagicMock()
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exc.response.status_code = "bad"
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exc.status_code = 503
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assert _extract_http_status(exc) == 503
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# ---------------------------------------------------------------------------
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# _ManagedFalSyncClient — __init__
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# ---------------------------------------------------------------------------
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def _make_fal_client_mock(
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*,
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sync_client_class=None,
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client_module=None,
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http_client=None,
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default_timeout=120.0,
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):
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"""Build a mock fal_client module with all required attributes."""
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if sync_client_class is None:
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sync_client_class = MagicMock()
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if client_module is None:
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client_module = MagicMock()
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sync_client_instance = MagicMock()
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sync_client_instance._client = (
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http_client if http_client is not None else MagicMock()
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)
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sync_client_instance.default_timeout = default_timeout
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sync_client_class.return_value = sync_client_instance
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fal_client = MagicMock()
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fal_client.SyncClient = sync_client_class
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fal_client.client = client_module
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return fal_client, sync_client_instance
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class TestManagedFalSyncClientInit:
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def test_init_succeeds_with_all_attributes(self):
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fal_client, _ = _make_fal_client_mock()
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client = _ManagedFalSyncClient(
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fal_client, key="test-key", queue_run_origin="https://queue.example.com"
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)
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assert client._queue_url_format == "https://queue.example.com/"
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assert client._http_client is not None
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assert client._maybe_retry_request is not None
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assert client._raise_for_status is not None
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assert client._request_handle_class is not None
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def test_init_raises_when_sync_client_missing(self):
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fal_client = MagicMock()
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fal_client.SyncClient = None
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fal_client.client = MagicMock()
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with pytest.raises(RuntimeError, match="fal_client.SyncClient is required"):
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_ManagedFalSyncClient(
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fal_client, key="k", queue_run_origin="https://q.example.com"
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)
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def test_init_raises_when_client_module_missing(self):
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fal_client = MagicMock()
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fal_client.SyncClient = MagicMock()
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fal_client.client = None
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with pytest.raises(RuntimeError, match="fal_client.client is required"):
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_ManagedFalSyncClient(
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fal_client, key="k", queue_run_origin="https://q.example.com"
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)
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def test_init_raises_when_http_client_missing(self):
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"""SyncClient._client is None → RuntimeError."""
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fal_client = MagicMock()
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sync_instance = MagicMock()
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sync_instance._client = None
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fal_client.SyncClient.return_value = sync_instance
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fal_client.client = MagicMock()
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with pytest.raises(RuntimeError, match="SyncClient._client is required"):
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_ManagedFalSyncClient(
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fal_client, key="k", queue_run_origin="https://q.example.com"
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)
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def test_init_raises_when_retry_request_missing(self):
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fal_client, _ = _make_fal_client_mock()
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fal_client.client._maybe_retry_request = None
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with pytest.raises(RuntimeError, match="request helpers are required"):
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_ManagedFalSyncClient(
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fal_client, key="k", queue_run_origin="https://q.example.com"
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)
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def test_init_raises_when_raise_for_status_missing(self):
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fal_client, _ = _make_fal_client_mock()
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fal_client.client._raise_for_status = None
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with pytest.raises(RuntimeError, match="request helpers are required"):
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_ManagedFalSyncClient(
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fal_client, key="k", queue_run_origin="https://q.example.com"
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)
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def test_init_raises_when_request_handle_class_missing(self):
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fal_client, _ = _make_fal_client_mock()
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fal_client.client.SyncRequestHandle = None
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with pytest.raises(RuntimeError, match="SyncRequestHandle is required"):
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_ManagedFalSyncClient(
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fal_client, key="k", queue_run_origin="https://q.example.com"
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)
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def test_init_passes_key_to_sync_client(self):
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fal_client, sync_instance = _make_fal_client_mock()
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_ManagedFalSyncClient(
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fal_client, key="my-secret-key", queue_run_origin="https://q.example.com"
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)
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fal_client.SyncClient.assert_called_once_with(key="my-secret-key")
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def test_init_normalizes_queue_url(self):
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fal_client, _ = _make_fal_client_mock()
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client = _ManagedFalSyncClient(
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fal_client, key="k", queue_run_origin="https://q.example.com///"
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)
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assert client._queue_url_format == "https://q.example.com/"
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# ---------------------------------------------------------------------------
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# _ManagedFalSyncClient — submit
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# ---------------------------------------------------------------------------
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class TestManagedFalSyncClientSubmit:
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def _make_client(self, **kwargs):
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fal_client, sync_instance = _make_fal_client_mock(**kwargs)
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client = _ManagedFalSyncClient(
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fal_client, key="k", queue_run_origin="https://queue.example.com"
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)
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return client, sync_instance, fal_client
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def test_submit_basic(self):
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client, sync_instance, fal_client = self._make_client()
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response = MagicMock()
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response.json.return_value = {
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"request_id": "req-1",
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"response_url": "https://q.example.com/resp",
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"status_url": "https://q.example.com/status",
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"cancel_url": "https://q.example.com/cancel",
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}
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client._maybe_retry_request = MagicMock(return_value=response)
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client._raise_for_status = MagicMock()
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client._request_handle_class = MagicMock()
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result = client.submit("my-app", {"prompt": "hello"})
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client._maybe_retry_request.assert_called_once()
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call_args = client._maybe_retry_request.call_args
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assert call_args[0][0] is client._http_client
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assert call_args[0][1] == "POST"
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assert call_args[0][2] == "https://queue.example.com/my-app"
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assert call_args[1]["json"] == {"prompt": "hello"}
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assert call_args[1]["timeout"] == 120.0
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client._raise_for_status.assert_called_once_with(response)
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client._request_handle_class.assert_called_once()
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assert result is client._request_handle_class.return_value
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def test_submit_with_path(self):
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client, _, _ = self._make_client()
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response = MagicMock()
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response.json.return_value = {
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"request_id": "r",
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"response_url": "",
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"status_url": "",
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"cancel_url": "",
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}
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client._maybe_retry_request = MagicMock(return_value=response)
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client._raise_for_status = MagicMock()
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client._request_handle_class = MagicMock()
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client.submit("my-app", {}, path="sub/path")
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url = client._maybe_retry_request.call_args[0][2]
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assert url == "https://queue.example.com/my-app/sub/path"
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def test_submit_with_path_strips_leading_slash(self):
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client, _, _ = self._make_client()
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response = MagicMock()
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response.json.return_value = {
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"request_id": "r",
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"response_url": "",
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"status_url": "",
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"cancel_url": "",
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}
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client._maybe_retry_request = MagicMock(return_value=response)
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client._raise_for_status = MagicMock()
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client._request_handle_class = MagicMock()
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client.submit("my-app", {}, path="/leading/slash")
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url = client._maybe_retry_request.call_args[0][2]
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assert url == "https://queue.example.com/my-app/leading/slash"
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def test_submit_with_webhook_url(self):
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client, _, _ = self._make_client()
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response = MagicMock()
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response.json.return_value = {
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"request_id": "r",
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"response_url": "",
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"status_url": "",
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"cancel_url": "",
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}
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client._maybe_retry_request = MagicMock(return_value=response)
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client._raise_for_status = MagicMock()
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client._request_handle_class = MagicMock()
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client.submit("my-app", {}, webhook_url="https://hook.example.com/cb")
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url = client._maybe_retry_request.call_args[0][2]
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assert "fal_webhook=https%3A%2F%2Fhook.example.com%2Fcb" in url
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def test_submit_with_hint(self):
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client, _, _ = self._make_client()
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client._add_hint_header = MagicMock()
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response = MagicMock()
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response.json.return_value = {
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"request_id": "r",
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"response_url": "",
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"status_url": "",
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"cancel_url": "",
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}
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client._maybe_retry_request = MagicMock(return_value=response)
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client._raise_for_status = MagicMock()
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client._request_handle_class = MagicMock()
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client.submit("my-app", {}, hint="my-hint")
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client._add_hint_header.assert_called_once()
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args = client._add_hint_header.call_args[0]
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assert args[0] == "my-hint"
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def test_submit_with_priority(self):
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client, _, _ = self._make_client()
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client._add_priority_header = MagicMock()
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response = MagicMock()
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response.json.return_value = {
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"request_id": "r",
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"response_url": "",
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"status_url": "",
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"cancel_url": "",
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}
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client._maybe_retry_request = MagicMock(return_value=response)
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client._raise_for_status = MagicMock()
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client._request_handle_class = MagicMock()
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client.submit("my-app", {}, priority=5)
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client._add_priority_header.assert_called_once()
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args = client._add_priority_header.call_args[0]
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assert args[0] == 5
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def test_submit_with_priority_raises_when_header_fn_missing(self):
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client, _, _ = self._make_client()
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client._add_priority_header = None
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response = MagicMock()
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response.json.return_value = {
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"request_id": "r",
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"response_url": "",
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"status_url": "",
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"cancel_url": "",
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}
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client._maybe_retry_request = MagicMock(return_value=response)
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client._raise_for_status = MagicMock()
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client._request_handle_class = MagicMock()
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with pytest.raises(RuntimeError, match="add_priority_header is required"):
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client.submit("my-app", {}, priority=5)
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def test_submit_with_start_timeout(self):
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client, _, _ = self._make_client()
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client._add_timeout_header = MagicMock()
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response = MagicMock()
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response.json.return_value = {
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"request_id": "r",
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"response_url": "",
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"status_url": "",
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"cancel_url": "",
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}
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client._maybe_retry_request = MagicMock(return_value=response)
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client._raise_for_status = MagicMock()
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client._request_handle_class = MagicMock()
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client.submit("my-app", {}, start_timeout=30)
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client._add_timeout_header.assert_called_once()
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args = client._add_timeout_header.call_args[0]
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assert args[0] == 30
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def test_submit_with_start_timeout_raises_when_header_fn_missing(self):
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client, _, _ = self._make_client()
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client._add_timeout_header = None
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response = MagicMock()
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response.json.return_value = {
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"request_id": "r",
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"response_url": "",
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"status_url": "",
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"cancel_url": "",
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}
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client._maybe_retry_request = MagicMock(return_value=response)
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client._raise_for_status = MagicMock()
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client._request_handle_class = MagicMock()
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with pytest.raises(RuntimeError, match="add_timeout_header is required"):
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client.submit("my-app", {}, start_timeout=30)
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def test_submit_with_custom_headers(self):
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client, _, _ = self._make_client()
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response = MagicMock()
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response.json.return_value = {
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"request_id": "r",
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"response_url": "",
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"status_url": "",
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"cancel_url": "",
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}
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client._maybe_retry_request = MagicMock(return_value=response)
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client._raise_for_status = MagicMock()
|
|
client._request_handle_class = MagicMock()
|
|
|
|
client.submit("my-app", {}, headers={"X-Custom": "value"})
|
|
|
|
headers = client._maybe_retry_request.call_args[1]["headers"]
|
|
assert headers["X-Custom"] == "value"
|
|
|
|
def test_submit_with_none_headers_defaults_to_empty_dict(self):
|
|
client, _, _ = self._make_client()
|
|
response = MagicMock()
|
|
response.json.return_value = {
|
|
"request_id": "r",
|
|
"response_url": "",
|
|
"status_url": "",
|
|
"cancel_url": "",
|
|
}
|
|
client._maybe_retry_request = MagicMock(return_value=response)
|
|
client._raise_for_status = MagicMock()
|
|
client._request_handle_class = MagicMock()
|
|
|
|
client.submit("my-app", {}, headers=None)
|
|
|
|
headers = client._maybe_retry_request.call_args[1]["headers"]
|
|
assert headers == {}
|
|
|
|
def test_submit_uses_custom_default_timeout(self):
|
|
"""SyncClient.default_timeout is used if present."""
|
|
fal_client, sync_instance = _make_fal_client_mock(default_timeout=300.0)
|
|
client = _ManagedFalSyncClient(
|
|
fal_client, key="k", queue_run_origin="https://q.example.com"
|
|
)
|
|
response = MagicMock()
|
|
response.json.return_value = {
|
|
"request_id": "r",
|
|
"response_url": "",
|
|
"status_url": "",
|
|
"cancel_url": "",
|
|
}
|
|
client._maybe_retry_request = MagicMock(return_value=response)
|
|
client._raise_for_status = MagicMock()
|
|
client._request_handle_class = MagicMock()
|
|
|
|
client.submit("app", {})
|
|
|
|
assert client._maybe_retry_request.call_args[1]["timeout"] == 300.0
|
|
|
|
def test_submit_falls_back_to_120_when_no_default_timeout(self):
|
|
"""SyncClient without default_timeout attr → 120.0 fallback."""
|
|
fal_client, sync_instance = _make_fal_client_mock()
|
|
# Remove default_timeout
|
|
del sync_instance.default_timeout
|
|
client = _ManagedFalSyncClient(
|
|
fal_client, key="k", queue_run_origin="https://q.example.com"
|
|
)
|
|
response = MagicMock()
|
|
response.json.return_value = {
|
|
"request_id": "r",
|
|
"response_url": "",
|
|
"status_url": "",
|
|
"cancel_url": "",
|
|
}
|
|
client._maybe_retry_request = MagicMock(return_value=response)
|
|
client._raise_for_status = MagicMock()
|
|
client._request_handle_class = MagicMock()
|
|
|
|
client.submit("app", {})
|
|
|
|
assert client._maybe_retry_request.call_args[1]["timeout"] == 120.0
|
|
|
|
def test_submit_passes_request_handle_kwargs(self):
|
|
client, _, _ = self._make_client()
|
|
response = MagicMock()
|
|
response.json.return_value = {
|
|
"request_id": "req-123",
|
|
"response_url": "https://q.example.com/resp",
|
|
"status_url": "https://q.example.com/status",
|
|
"cancel_url": "https://q.example.com/cancel",
|
|
}
|
|
client._maybe_retry_request = MagicMock(return_value=response)
|
|
client._raise_for_status = MagicMock()
|
|
client._request_handle_class = MagicMock()
|
|
|
|
client.submit("app", {})
|
|
|
|
kwargs = client._request_handle_class.call_args[1]
|
|
assert kwargs["request_id"] == "req-123"
|
|
assert kwargs["response_url"] == "https://q.example.com/resp"
|
|
assert kwargs["status_url"] == "https://q.example.com/status"
|
|
assert kwargs["cancel_url"] == "https://q.example.com/cancel"
|
|
assert kwargs["client"] is client._http_client
|
|
|
|
def test_submit_with_all_optional_params(self):
|
|
"""All optional params set at once."""
|
|
client, _, _ = self._make_client()
|
|
client._add_hint_header = MagicMock()
|
|
client._add_priority_header = MagicMock()
|
|
client._add_timeout_header = MagicMock()
|
|
response = MagicMock()
|
|
response.json.return_value = {
|
|
"request_id": "r",
|
|
"response_url": "",
|
|
"status_url": "",
|
|
"cancel_url": "",
|
|
}
|
|
client._maybe_retry_request = MagicMock(return_value=response)
|
|
client._raise_for_status = MagicMock()
|
|
client._request_handle_class = MagicMock()
|
|
|
|
client.submit(
|
|
"app",
|
|
{"prompt": "test"},
|
|
path="sub",
|
|
hint="hint-val",
|
|
webhook_url="https://hook.example.com",
|
|
priority=10,
|
|
headers={"X-Custom": "val"},
|
|
start_timeout=60,
|
|
)
|
|
|
|
url = client._maybe_retry_request.call_args[0][2]
|
|
assert "app/sub?" in url
|
|
assert "fal_webhook=" in url
|
|
client._add_hint_header.assert_called_once()
|
|
client._add_priority_header.assert_called_once()
|
|
client._add_timeout_header.assert_called_once()
|
|
headers = client._maybe_retry_request.call_args[1]["headers"]
|
|
assert headers["X-Custom"] == "val"
|