Files
agentic-mobile-control/tests/test_plugin_registry.py
T
q792602257 725bf4cd9c fix(plugin-system): implement register_driver_type and stop discover() aborting on one bad manifest
- driver/registry.py never actually defined register_driver_type, so
  the plugin-system's 'driver plugin registered successfully' scenario
  was unreachable in production (only simulated via test monkeypatch).
  Added a real implementation wired into the existing driver factory
  registry.
- PluginRegistry.discover() only caught PluginValidationError/
  DuplicatePluginError, so a driver-kind manifest that failed wiring
  (DriverRegistryUnavailableError/PluginTargetResolutionError) aborted
  the whole scan, silently skipping co-located tool/skill manifests.
  Now caught and skipped per manifest instead.

openspec: plugin-system capability, archived change cloud-runtime
2026-07-07 08:31:00 +08:00

367 lines
12 KiB
Python

"""Unit tests for cloud.plugins.PluginRegistry (task 6.9)."""
from __future__ import annotations
import importlib.metadata
import json
from pathlib import Path
from types import SimpleNamespace
import pytest
from cloud.plugins import (
DiscoveryResult,
DriverRegistryUnavailableError,
DuplicatePluginError,
PluginManifest,
PluginRegistry,
PluginTargetResolutionError,
PluginValidationError,
)
from cloud.store import CloudStore
import driver.registry as driver_registry_module
def _manifest(
*,
name: str = "demo",
version: str = "1.0.0",
entry_point_kind: str = "driver",
target: str = "cloud.store:CloudStore",
) -> PluginManifest:
return PluginManifest(
name=name,
version=version,
entry_point_kind=entry_point_kind, # type: ignore[arg-type]
target=target,
)
def _fake_driver_factory_builder(connection_info: dict) -> object:
"""A real ``DriverFactoryBuilder``-shaped function used as a plugin target
in tests: takes ``connection_info``, returns a zero-arg factory callable
that "constructs" a driver (here, just the connection info itself, so
tests can assert on it without needing a real WDA server)."""
return lambda: dict(connection_info)
def test_valid_manifest_registers(tmp_path) -> None:
registry = PluginRegistry(CloudStore(tmp_path / "cloud.sqlite3"))
manifest = registry.register(_manifest(entry_point_kind="tool"))
assert manifest.name == "demo"
stored = registry.store.get_plugin("demo")
assert stored is not None
assert stored[0].entry_point_kind == "tool"
def test_unrecognized_entry_point_kind_rejected(tmp_path) -> None:
registry = PluginRegistry(CloudStore(tmp_path / "cloud.sqlite3"))
with pytest.raises(PluginValidationError):
PluginManifest(
name="bad",
version="1.0.0",
entry_point_kind="strategy", # type: ignore[arg-type]
target="cloud.store:CloudStore",
)
def test_duplicate_name_rejected(tmp_path) -> None:
registry = PluginRegistry(CloudStore(tmp_path / "cloud.sqlite3"))
registry.register(_manifest(entry_point_kind="tool"))
with pytest.raises(DuplicatePluginError):
registry.register(_manifest(entry_point_kind="tool"))
def test_driver_kind_wires_into_register_driver_type(tmp_path, monkeypatch) -> None:
"""A driver-kind manifest is wired end-to-end into the real driver registry:
after registration, build_driver_factory() can construct the new type."""
monkeypatch.delitem(
driver_registry_module.SUPPORTED_DRIVER_TYPES, "custom-driver", raising=False
)
registry = PluginRegistry(CloudStore(tmp_path / "cloud.sqlite3"))
registry.register(
_manifest(
entry_point_kind="driver",
name="custom-driver",
target="tests.test_plugin_registry:_fake_driver_factory_builder",
)
)
stored = registry.store.get_plugin("custom-driver")
assert stored is not None
assert stored[1] is True # wired
factory = driver_registry_module.build_driver_factory(
"custom-driver", {"server_url": "http://example"}
)
driver = factory()
assert driver == {"server_url": "http://example"}
def test_driver_kind_raises_when_extension_point_missing(
tmp_path,
monkeypatch,
) -> None:
"""When register_driver_type is not importable, registration fails loudly."""
# Ensure the attribute is genuinely absent, regardless of future state of driver/registry.py.
monkeypatch.delattr(
driver_registry_module,
"register_driver_type",
raising=False,
)
registry = PluginRegistry(CloudStore(tmp_path / "cloud.sqlite3"))
with pytest.raises(DriverRegistryUnavailableError):
registry.register(_manifest(entry_point_kind="driver"))
def test_tool_and_skill_manifests_register_unwired(tmp_path, monkeypatch) -> None:
"""tool/skill-kind manifests must not touch any other registry."""
touched: list[tuple[str, object]] = []
def fail_if_called(name: str, builder) -> None:
touched.append((name, builder))
monkeypatch.setattr(
driver_registry_module,
"register_driver_type",
fail_if_called,
raising=False,
)
registry = PluginRegistry(CloudStore(tmp_path / "cloud.sqlite3"))
registry.register(_manifest(name="a-tool", entry_point_kind="tool"))
registry.register(_manifest(name="a-skill", entry_point_kind="skill"))
assert touched == []
stored_tool = registry.store.get_plugin("a-tool")
stored_skill = registry.store.get_plugin("a-skill")
assert stored_tool is not None and stored_tool[1] is False
assert stored_skill is not None and stored_skill[1] is False
def test_entry_point_discovery_registers_plugin(
tmp_path,
monkeypatch,
) -> None:
"""discover_entry_points() resolves an installed entry point into a manifest."""
fake_ep = SimpleNamespace(
name="installed-plugin",
load=lambda: {
"name": "installed-plugin",
"version": "0.2.0",
"entry_point_kind": "tool",
"target": "cloud.store:CloudStore",
},
)
monkeypatch.setattr(
importlib.metadata,
"entry_points",
lambda **kwargs: [fake_ep],
)
registry = PluginRegistry(CloudStore(tmp_path / "cloud.sqlite3"))
manifests = registry.discover_entry_points()
assert [m.name for m in manifests] == ["installed-plugin"]
registry.register(manifests[0])
assert registry.store.get_plugin("installed-plugin") is not None
def test_manifest_file_discovery_registers_valid_and_skips_malformed(
tmp_path,
) -> None:
plugins_dir = tmp_path / "plugins"
(plugins_dir / "good").mkdir(parents=True)
(plugins_dir / "good" / "plugin.json").write_text(
json.dumps(
{
"name": "good",
"version": "1.0.0",
"entry_point_kind": "tool",
"target": "cloud.store:CloudStore",
}
),
encoding="utf-8",
)
(plugins_dir / "bad").mkdir(parents=True)
(plugins_dir / "bad" / "plugin.json").write_text(
"{ not valid json",
encoding="utf-8",
)
(plugins_dir / "ugly").mkdir(parents=True)
(plugins_dir / "ugly" / "plugin.json").write_text(
json.dumps({"name": "ugly"}), # missing required fields
encoding="utf-8",
)
registry = PluginRegistry(CloudStore(tmp_path / "cloud.sqlite3"))
manifests = registry.discover_manifest_files(plugins_dir)
# Only the well-formed manifest is returned; malformed files are skipped silently.
assert [m.name for m in manifests] == ["good"]
# discover() registers the valid manifest and skips the malformed files
# without aborting the whole scan.
result = registry.discover(scan_path=plugins_dir)
assert any(m.name == "good" for m in result.registered)
assert isinstance(result, DiscoveryResult)
def test_discover_combines_entry_points_and_manifest_files(
tmp_path,
monkeypatch,
) -> None:
fake_ep = SimpleNamespace(
name="via-entry-point",
load=lambda: PluginManifest(
name="via-entry-point",
version="1.0.0",
entry_point_kind="tool",
target="cloud.store:CloudStore",
),
)
monkeypatch.setattr(
importlib.metadata,
"entry_points",
lambda **kwargs: [fake_ep],
)
plugins_dir = tmp_path / "plugins"
(plugins_dir / "via-file").mkdir(parents=True)
(plugins_dir / "via-file" / "plugin.json").write_text(
json.dumps(
{
"name": "via-file",
"version": "1.0.0",
"entry_point_kind": "skill",
"target": "cloud.store:CloudStore",
}
),
encoding="utf-8",
)
registry = PluginRegistry(CloudStore(tmp_path / "cloud.sqlite3"))
result = registry.discover(scan_path=plugins_dir)
names = {m.name for m in result.registered}
assert names == {"via-entry-point", "via-file"}
assert result.errors == []
def test_discover_does_not_abort_when_driver_wiring_fails(
tmp_path,
monkeypatch,
) -> None:
"""A driver-kind manifest that fails wiring must not abort the whole
discover() scan: a co-located tool manifest should still get registered,
and the failure should surface as a discovery error, not an exception."""
# Force the driver-registry extension point to look unavailable so the
# driver-kind manifest below fails wiring with DriverRegistryUnavailableError.
monkeypatch.delattr(
driver_registry_module,
"register_driver_type",
raising=False,
)
plugins_dir = tmp_path / "plugins"
(plugins_dir / "a-broken-driver").mkdir(parents=True)
(plugins_dir / "a-broken-driver" / "plugin.json").write_text(
json.dumps(
{
"name": "broken-driver",
"version": "1.0.0",
"entry_point_kind": "driver",
"target": "cloud.store:CloudStore",
}
),
encoding="utf-8",
)
(plugins_dir / "b-ok-tool").mkdir(parents=True)
(plugins_dir / "b-ok-tool" / "plugin.json").write_text(
json.dumps(
{
"name": "ok-tool",
"version": "1.0.0",
"entry_point_kind": "tool",
"target": "cloud.store:CloudStore",
}
),
encoding="utf-8",
)
registry = PluginRegistry(CloudStore(tmp_path / "cloud.sqlite3"))
result = registry.discover(scan_path=plugins_dir)
# The broken driver manifest is recorded as a discovery error, not raised.
assert any("broken-driver" in err for err in result.errors)
# The co-located tool manifest still registered despite the driver failure.
assert any(m.name == "ok-tool" for m in result.registered)
assert registry.store.get_plugin("ok-tool") is not None
assert registry.store.get_plugin("broken-driver") is None
def test_discover_reports_target_resolution_failure_without_aborting(
tmp_path,
) -> None:
"""A driver-kind manifest whose target can't resolve to a callable
(PluginTargetResolutionError) is likewise skipped/logged, not fatal."""
plugins_dir = tmp_path / "plugins"
(plugins_dir / "bad-target-driver").mkdir(parents=True)
(plugins_dir / "bad-target-driver" / "plugin.json").write_text(
json.dumps(
{
"name": "bad-target-driver",
"version": "1.0.0",
"entry_point_kind": "driver",
# os.path.sep exists but is not callable -> PluginTargetResolutionError
"target": "os.path:sep",
}
),
encoding="utf-8",
)
(plugins_dir / "ok-tool-2").mkdir(parents=True)
(plugins_dir / "ok-tool-2" / "plugin.json").write_text(
json.dumps(
{
"name": "ok-tool-2",
"version": "1.0.0",
"entry_point_kind": "tool",
"target": "cloud.store:CloudStore",
}
),
encoding="utf-8",
)
registry = PluginRegistry(CloudStore(tmp_path / "cloud.sqlite3"))
with pytest.raises(PluginTargetResolutionError):
# Direct register() call still raises loudly for a single manifest...
registry._wire_driver(
_manifest(
name="direct-check",
entry_point_kind="driver",
target="os.path:sep",
)
)
result = registry.discover(scan_path=plugins_dir)
assert any("bad-target-driver" in err for err in result.errors)
assert any(m.name == "ok-tool-2" for m in result.registered)
assert registry.store.get_plugin("ok-tool-2") is not None