[AZ-355] C4 PoseEstimator Protocol + factory + DTOs + composition

Land the foundational C4 surface AZ-358 (Marginals) and AZ-361
(Hybrid) build on top of:

- PoseEstimator Protocol (@runtime_checkable): estimate(...) +
  current_covariance_mode().
- Error hierarchy: PoseEstimatorError, PnpFailureError,
  PoseEstimatorConfigError; CovarianceDegradedWarning as a Warning
  subclass (warnings.warn path, not raised).
- ISam2GraphHandle Protocol stub (READ-ONLY view, get_pose_key only)
  decoupled from C5's concrete ISam2GraphHandleImpl.
- C4PoseConfig (frozen dataclass) + register on c4_pose import.
- runtime_root/pose_factory.build_pose_estimator with lazy-import
  fallback; INFO log c4.pose.strategy_loaded; shares ingest-thread
  binding with C5 per ADR-003.

DTO restructuring (cross-cutting): retire the legacy raw-4x4
PoseEstimate(int frame_id, datetime timestamp, pose_se3, ...) and
ship the contract shape PoseEstimate(UUID, LatLonAlt, Quat,
np.ndarray, CovarianceMode, PoseSourceLabel,
last_satellite_anchor_age_ms, emitted_at). C5 add_pose_anchor in
both gtsam_isam2 + eskf_baseline migrated in lockstep via
WGS84->ENU + Quat->R helpers; test fixtures updated. VIO output
stays on the raw shape until AZ-331 (C1 protocol) lands.

LatLonAlt upgraded to slots=True per AC-2. ThermalState stub added
to _types/thermal.py so the Protocol typechecks pre-AZ-302.

Tests: 25 new in tests/unit/c4_pose/test_az355_pose_protocol.py
covering AC-1..AC-10 + factory wiring + config validation; full
repo: 685 passed, 2 pre-existing CI-only skips.

Jira transition deferred: MCP "Not connected"; leftover entry in
_docs/_process_leftovers/2026-05-11_jira_transition_az355_deferred.md.

Co-authored-by: Cursor <cursoragent@cursor.com>
This commit is contained in:
Oleksandr Bezdieniezhnykh
2026-05-11 10:32:14 +03:00
parent c0bdb57957
commit db27e25630
19 changed files with 1407 additions and 52 deletions
@@ -0,0 +1,189 @@
# Batch 20 — AZ-355 C4 PoseEstimator Protocol + Factory + DTOs + Composition
**Date**: 2026-05-11
**Tracker**: Jira AZ-355 (Epic AZ-259 / E-C4)
**Cycle**: 1
**Status**: complete; tests + lint + format green; Jira transition deferred (see leftovers).
## Scope landed
AZ-355 ships the foundational C4 surface that AZ-358 (Marginals) and
AZ-361 (Hybrid) will fill in. Concrete impl of
`OpenCVGtsamPoseEstimator` is explicitly out of scope.
### Public surface
* `src/gps_denied_onboard/components/c4_pose/interface.py` — the
`PoseEstimator` Protocol (`@runtime_checkable`). Two methods:
`estimate(match_result, calibration, thermal_state) -> PoseEstimate`
and `current_covariance_mode() -> CovarianceMode`.
* `src/gps_denied_onboard/components/c4_pose/errors.py` — error
hierarchy: `PoseEstimatorError` (base) → `PnpFailureError`,
`PoseEstimatorConfigError`; plus `CovarianceDegradedWarning` as a
`Warning` subclass (NOT an `Exception``warnings.warn(...)` is
the only emission path).
* `src/gps_denied_onboard/components/c4_pose/_isam2_handle.py`
minimal READ-ONLY view of C5's iSAM2 graph exposing only
`get_pose_key(frame_id) -> int`. Decoupled from C5's concrete
`ISam2GraphHandleImpl` so C4 never imports C5 internals.
* `src/gps_denied_onboard/components/c4_pose/config.py`
`C4PoseConfig` (frozen dataclass) with `strategy`,
`ransac_iterations`, `ransac_reprojection_threshold_px`,
`thermal_throttle_threshold_celsius`. `__post_init__` validates
the values via `ConfigError`.
* `src/gps_denied_onboard/runtime_root/pose_factory.py`
`build_pose_estimator(config, *, ransac_filter, wgs_converter,
se3_utils, isam2_graph_handle) -> PoseEstimator`. Lazy-import
fallback via `importlib.import_module(...)` mirrors the C5 / C8
factories. Emits one INFO log `c4.pose.strategy_loaded` per
successful build.
* `src/gps_denied_onboard/components/c4_pose/__init__.py` — public
re-exports per AC-8 + registers `C4PoseConfig` against the
global config registry on import.
* `src/gps_denied_onboard/runtime_root/__init__.py` — re-exports
`build_pose_estimator`, `register_pose_estimator`,
`clear_pose_registry`, `list_registered_pose_strategies`.
### DTO restructuring (cross-cutting)
The C4 contract pins `PoseEstimate` at:
```python
@dataclass(frozen=True, slots=True)
class PoseEstimate:
frame_id: UUID
position_wgs84: LatLonAlt
orientation_world_T_body: Quat
covariance_6x6: np.ndarray # SPD, 6x6
covariance_mode: CovarianceMode
source_label: PoseSourceLabel
last_satellite_anchor_age_ms: int
emitted_at: int # monotonic_ns
```
The legacy `PoseEstimate(int frame_id, datetime timestamp, 4x4 pose_se3,
covariance_6x6, str covariance_mode, mre_px)` shape that C5 consumed
in earlier batches has been retired in this batch (user-approved scope
expansion).
C5 consumers (`gtsam_isam2_estimator.add_pose_anchor`,
`eskf_baseline.add_pose_anchor`) and their test fixtures are migrated
in lockstep:
* `pose.emitted_at` (int ns) replaces `_datetime_to_ns(pose.timestamp)`.
* `pose.covariance_mode.value` (enum → str) replaces the old loose
string.
* A new `_pose_estimate_to_matrix(pose)` private helper on each
estimator converts `LatLonAlt + Quat` back into a 4x4 SE(3) using
the injected ENU origin (default `(0, 0, 0)` for synthetic
fixtures). Round-trip is numerically clean because
`WgsConverter.local_enu_to_latlonalt` and `latlonalt_to_local_enu`
are inverses at the metre scale.
* The VIO consumer code path (`pose.timestamp` / `pose.pose_se3`)
is unchanged — `VioOutput` still carries the raw form because the
C1 contract has not migrated yet.
### Forward-declared types
`src/gps_denied_onboard/_types/thermal.py` is a new module holding the
minimal `ThermalState(throttle: bool)` DTO. AZ-302 (C7 ThermalState
publisher) is responsible for the full producer surface; this stub
exists solely so the C4 Protocol typechecks without a `TYPE_CHECKING`
indirection cycle. The contract pins only the `throttle` field.
### Geo DTO upgrade
`_types/geo.LatLonAlt` is upgraded to `frozen=True, slots=True` per
the C4 contract AC-2. The field set is unchanged
(`lat_deg, lon_deg, alt_m`); no consumer needed a code change.
## Architectural notes
* **ADR-001 / ADR-009 alignment** — single concrete strategy
(`opencv_gtsam`) behind a `@runtime_checkable` Protocol. The
factory is the only production path that resolves the strategy
name; tests pre-register fakes via `register_pose_estimator`.
* **Single-thread invariant (AC-9)** — the C4 estimator shares C5's
ingest thread via the existing `bind_state_ingest_thread` helper
on the state factory. A second binding from a different thread
raises `StateIngestThreadAlreadyBoundError`. The same helper is
reused; no duplicate thread-binding state on the pose factory.
* **`CovarianceDegradedWarning` semantics (AC-4)** — Python's class
hierarchy has `Warning < Exception < BaseException`, so a strict
`not issubclass(CovarianceDegradedWarning, Exception)` would be
False; the contract's intent is behavioural — `warnings.warn`
does NOT raise, so `try / except Exception` around `warnings.warn`
does NOT catch the warning. The test covers the behavioural
contract and the AC text is documented in the test docstring so
the discrepancy is visible to future maintainers.
## Test coverage
`tests/unit/c4_pose/test_az355_pose_protocol.py` — 25 tests across
AC-1..AC-10 plus bonus factory / config tests.
| AC | Test focus | Outcome |
|----|------------|---------|
| AC-1 | `runtime_checkable` Protocol — full fake passes; partial fake fails | green |
| AC-2 | `LatLonAlt`, `Quat`, `PoseEstimate` frozen + slotted | green |
| AC-3 | Enum membership for `CovarianceMode` + `PoseSourceLabel` | green |
| AC-4 | `CovarianceDegradedWarning` Warning semantics + behavioural test | green |
| AC-5 | `PnpFailureError` IS-A `Exception`, caught by `except Exception` | green |
| AC-6 | Factory rejects unknown strategy + non-conforming graph handle; ERROR log emitted | green |
| AC-7 | Factory accepts `opencv_gtsam`; one INFO log `c4.pose.strategy_loaded` with structured fields | green |
| AC-8 | Public `__all__` includes the required surface; internals excluded | green |
| AC-9 | `bind_state_ingest_thread` rejects second different-thread binding; idempotent on same thread | green |
| AC-10 | `ISam2GraphHandle` `runtime_checkable` — fake with `get_pose_key` passes; bare class fails | green |
| Bonus | Factory wires deps through to the strategy | green |
| Bonus | Lazy-import fallback raises `PoseEstimatorConfigError` when concrete module is absent | green |
| Bonus | `C4PoseConfig` rejects bad strategy / zero ransac iterations at `__post_init__` | green |
| Bonus | `PoseEstimate.frame_id` is `UUID`; `emitted_at` round-trips as int ns | green |
C5 regression suite — 160 unit tests (test_az381..test_az388) green
after the `PoseEstimate` migration. Full repo: 685 passed, 2 skipped
(pre-existing CI-only skips for `cmake` and `actionlint`).
## Quality gates
* `ruff check` on every changed file — clean.
* `ruff format` applied; 3 files reformatted.
* `ReadLints` on the changed surface — no diagnostics.
* Full `pytest` — green (685 passed, 2 skipped).
## Known follow-ups
* **AZ-358 (Marginals)** — needs to wire the concrete C5
`ISam2GraphHandleImpl` to expose `get_pose_key` so the C4 Protocol
isinstance check passes at composition time. Currently the C5 impl
has `key_for_frame` on the estimator itself, not on the handle.
Either:
1. Add `get_pose_key` to `ISam2GraphHandleImpl` delegating to
`estimator.key_for_frame`, or
2. Have the runtime root construct an adapter object that
implements only the C4 Protocol over the C5 handle.
Option 1 is the cheaper path; flag at AZ-358 kick-off.
* **`ThermalState` full surface** — AZ-302 (C7) will add captured_at,
temperature reading, thermal-zone source. The stub here pins only
`throttle: bool`; AZ-302 must keep that field.
* **`CovarianceDegradedWarning` filter policy** — the contract
recommends `warnings.simplefilter("once", CovarianceDegradedWarning)`
to avoid log flood. AZ-361 (Hybrid) owns the actual emit path and
should install the filter near the composition root.
## Cross-task constraint surfaced
The PoseEstimate migration deliberately keeps `VioOutput` on the
raw `datetime timestamp` + `4x4 pose_se3` shape (C1 contract has not
migrated yet). When the C1 protocol task (AZ-331) lands it may bring
`VioOutput` in line — at which point `_datetime_to_ns(vio.timestamp)`
+ `_pose_se3_to_*(vio.pose_se3)` calls in C5 should be migrated in
lockstep. Recorded for AZ-331's planning.
## Tracker
Jira MCP still returns `"Not connected"` at the time of writing.
The status transition `AZ-355: To Do → Done` is recorded in
`_docs/_process_leftovers/2026-05-11_jira_transition_az355_deferred.md`.
The previous `_docs/_process_leftovers/2026-05-11_jira_transition_az386_deferred.md`
remains pending — both will be replayed when the MCP is reconnected.
+1 -1
View File
@@ -8,7 +8,7 @@ status: in_progress
sub_step:
phase: 6
name: implement-tasks
detail: "batch 19 of N committed (AZ-386 c5 ESKF mandatory simple-baseline: 16-state error-state KF NumPy impl + add_vio relative + add_pose_anchor absolute + Mahalanobis divergence gate AC-9 + source-label SM + AC-5.2 fallback auto-wired + smoothed=False history honesty (Invariant 7 deviation documented) + BUILD_STATE_ESKF flag wiring)"
detail: "batch 20 of N committed (AZ-355 c4 PoseEstimator Protocol + factory + DTOs + composition: new PoseEstimate shape (UUID + LatLonAlt + Quat + np.ndarray + CovarianceMode + PoseSourceLabel + emitted_at ns) + errors + ISam2GraphHandle stub + build_pose_estimator with lazy-import + C4PoseConfig; C5 consumers migrated in lockstep; legacy raw-4x4 pose_se3 shape retired)"
retry_count: 0
cycle: 1
tracker: jira
@@ -0,0 +1,45 @@
# Jira transition for AZ-355 deferred — MCP "Not connected"
**Recorded**: 2026-05-11T10:50+03:00 (Europe/Kyiv)
**Status**: deferred-non-user (replay on next autodev invocation when Jira MCP is connected)
## What is blocked
Status transition of `AZ-355` from `To Do``Done` to reflect that
Batch 20 has landed the C4 `PoseEstimator` Protocol + factory + DTOs
+ composition wiring (see
`_docs/03_implementation/batch_20_cycle1_report.md`).
## Why
The Atlassian MCP server returned `"Not connected"` on
`getAccessibleAtlassianResources` during the Batch 20 wrap-up — same
failure mode that AZ-386 hit a few hours earlier. Per the
Leftovers Mechanism the write is recorded here and the non-tracker
work (commit, push) is allowed to proceed; the next autodev
invocation will replay the transition.
## Replay payload
- **Tool**: `transitionJiraIssue`
- **cloudId**: `denyspopov.atlassian.net`
- **issueIdOrKey**: `AZ-355`
- **target status**: `Done` (transition id is project-specific; resolve
via `getTransitionsForJiraIssue` at replay time — Jira project `AZ`
uses the standard "Software" workflow so the transition is `id: 31`
in current Jira config; confirm at replay time).
## Acceptance check on replay
After the transition succeeds:
- `getJiraIssue(AZ-355)` returns `fields.status.name == "Done"`.
- Delete this leftover file.
## Notes
- Code, tests, docs, and state file are all updated and committed. The
only outstanding action is the tracker status transition; the
AZ-355 task spec is already in `_docs/02_tasks/done/`.
- The previous leftover for AZ-386 is still pending; replay both in
one batch when the MCP comes back.
+7 -2
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@@ -9,9 +9,14 @@ from __future__ import annotations
from dataclasses import dataclass
@dataclass(frozen=True)
@dataclass(frozen=True, slots=True)
class LatLonAlt:
"""A WGS84 geographic position. ``alt_m`` is height above the WGS84 ellipsoid."""
"""A WGS84 geographic position. ``alt_m`` is height above the WGS84 ellipsoid.
``slots=True`` per AZ-355 AC-2 — DTOs cross component boundaries
and mutation-through-aliasing has bitten this codebase before
(R05 in the C5 risk register, R10 in the C4 risk register).
"""
lat_deg: float
lon_deg: float
+85 -18
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@@ -1,28 +1,95 @@
"""C4 PoseEstimator output DTOs.
"""C4 PoseEstimator output DTOs + enums (AZ-355 / E-C4).
The C5 estimator output + provenance enums live in
:mod:`gps_denied_onboard._types.state`; importing them here used to be
convenient for the C4 module's public re-exports but the two DTOs
diverged (C5 carries a UUID frame_id + WGS84 position + Quat
orientation directly; C4 still passes a raw 4x4 ``pose_se3`` to keep
the OpenCV ↔ GTSAM seam thin). Components that need the C5 surface
import from ``_types.state`` directly.
Aligned with the C4 contract at
``_docs/02_document/contracts/c4_pose/pose_estimator_protocol.md``
v1.0.0. The structured DTO (``UUID frame_id`` + ``LatLonAlt`` +
``Quat`` + ``np.ndarray covariance_6x6`` + enums + ``emitted_at``
monotonic_ns) is consumed by C5 (state estimator), C8 (FC outbound),
and C13 (FDR records). The C4 contract makes this the canonical form;
no component should re-invent the raw-4x4 ``pose_se3`` shape that
predated AZ-355.
``Quat`` is re-exported from :mod:`_types.state` so the C5 surface
(``EstimatorOutput.orientation_world_T_body``) and the C4 surface
(``PoseEstimate.orientation_world_T_body``) share one literal class
identity — ``isinstance`` checks across the boundary stay free.
``LatLonAlt`` is re-exported from :mod:`_types.geo` for the same
reason; the geo module remains the storage site so downstream
non-C4 callers (``WgsConverter`` + C6 tile-cache + C8 outbound)
don't pull in the C4 namespace.
``PoseSourceLabel`` is shared with C5 (one provenance enum, three
values: ``SATELLITE_ANCHORED`` / ``VISUAL_PROPAGATED`` /
``DEAD_RECKONED``).
"""
from __future__ import annotations
from dataclasses import dataclass
from datetime import datetime
from typing import Any
from enum import Enum
from typing import TYPE_CHECKING, Any
from uuid import UUID
if TYPE_CHECKING:
import numpy.typing as npt
from gps_denied_onboard._types.geo import LatLonAlt
from gps_denied_onboard._types.state import PoseSourceLabel, Quat
__all__ = [
"CovarianceMode",
"LatLonAlt",
"PoseEstimate",
"PoseSourceLabel",
"Quat",
]
@dataclass(frozen=True)
class CovarianceMode(Enum):
"""Per-frame covariance-derivation mode tagged on every emitted ``PoseEstimate``.
* ``MARGINALS`` — production-default; recovered via
``Marginals.marginalCovariance(pose_key)`` against C5's shared
iSAM2 graph (ADR-003 substrate). The cost-accurate path.
* ``JACOBIAN`` — D-CROSS-LATENCY-1 thermal-throttle fallback
(ADR-006). Cheaper but ~5-10% less accurate; engaged per-frame
when ``ThermalState.throttle == True``.
AZ-355 owns the enum; AZ-358 (Marginals) + AZ-361 (Hybrid) own
the producer paths.
"""
MARGINALS = "marginals"
JACOBIAN = "jacobian"
@dataclass(frozen=True, slots=True)
class PoseEstimate:
"""A single 6-DoF pose estimate with covariance."""
"""C4 single-frame pose estimate.
frame_id: int
timestamp: datetime
pose_se3: Any
covariance_6x6: Any | None = None
covariance_mode: str = "marginals"
mre_px: float | None = None
Per the C4 contract (Invariant 5) ``covariance_6x6`` is always
SPD. Per Invariant 6 the ``covariance_mode`` enum matches the
path actually taken — never reports ``MARGINALS`` while the
implementation ran the Jacobian path. Per Invariant 7 C4 emits
``source_label = SATELLITE_ANCHORED`` unconditionally on success;
only C5 may downgrade to ``VISUAL_PROPAGATED`` or
``DEAD_RECKONED``.
``last_satellite_anchor_age_ms`` is provided BY C5 and passed
through (Invariant 8) — the runtime root broadcasts the current
value from C5; C4 caches it without computing it independently.
``emitted_at`` is a ``time.monotonic_ns()`` snapshot taken when
the estimator produced the value; consumers MUST NOT compare it
to wall-clock ``datetime`` values.
"""
frame_id: UUID
position_wgs84: LatLonAlt
orientation_world_T_body: Quat
covariance_6x6: npt.NDArray[Any]
covariance_mode: CovarianceMode
source_label: PoseSourceLabel
last_satellite_anchor_age_ms: int
emitted_at: int
+32
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@@ -0,0 +1,32 @@
"""C7 ``ThermalState`` DTO stub (forward-declared for AZ-355).
AZ-355 (C4 PoseEstimator Protocol) needs a ``ThermalState`` type to
annotate :meth:`PoseEstimator.estimate`. The full producer
(``ThermalStatePublisher`` in C7) is owned by AZ-302; this module
holds the minimal DTO surface C4 needs so the Protocol typechecks
without a circular dependency or a ``TYPE_CHECKING`` workaround.
When AZ-302 lands, it MAY add fields here (temperature reading,
thermal-zone source, captured_at) but MUST keep the ``throttle``
boolean — it is the only field the C4 Protocol contract pins.
"""
from __future__ import annotations
from dataclasses import dataclass
__all__ = ["ThermalState"]
@dataclass(frozen=True, slots=True)
class ThermalState:
"""C7-reported thermal state consumed by C4 for the per-frame mode switch.
``throttle == True`` triggers the Jacobian path (D-CROSS-LATENCY-1
/ ADR-006). ``False`` keeps the production Marginals path.
The full C7 publisher (AZ-302) emits these on a fixed cadence;
C4 reads the latest value at every ``estimate`` call entry.
"""
throttle: bool
@@ -1,6 +1,52 @@
"""C4 Pose Estimator component — Public API."""
"""C4 PoseEstimator component — public API (AZ-355 / E-C4).
from gps_denied_onboard._types.pose import PoseEstimate
Per the C4 contract (``state_estimator_protocol.md`` v1.0.0), the
public surface consists of:
* :class:`PoseEstimator` Protocol
* :class:`PoseEstimate` DTO + :class:`LatLonAlt` + :class:`Quat`
(re-exported from ``_types.pose``)
* :class:`CovarianceMode` + :class:`PoseSourceLabel` enums
* Error hierarchy: :class:`PoseEstimatorError` + subclasses +
:class:`CovarianceDegradedWarning`
* :class:`C4PoseConfig` config block (registered on import)
The ``ISam2GraphHandle`` Protocol stub lives in the private
``_isam2_handle`` module — the composition root imports it directly;
it is intentionally NOT part of the public surface to discourage
non-runtime-root callers from poking at C5's internals.
"""
from gps_denied_onboard._types.pose import (
CovarianceMode,
LatLonAlt,
PoseEstimate,
PoseSourceLabel,
Quat,
)
from gps_denied_onboard.components.c4_pose.config import C4PoseConfig
from gps_denied_onboard.components.c4_pose.errors import (
CovarianceDegradedWarning,
PnpFailureError,
PoseEstimatorConfigError,
PoseEstimatorError,
)
from gps_denied_onboard.components.c4_pose.interface import PoseEstimator
from gps_denied_onboard.config.schema import register_component_block
__all__ = ["PoseEstimate", "PoseEstimator"]
__all__ = [
"C4PoseConfig",
"CovarianceDegradedWarning",
"CovarianceMode",
"LatLonAlt",
"PnpFailureError",
"PoseEstimate",
"PoseEstimator",
"PoseEstimatorConfigError",
"PoseEstimatorError",
"PoseSourceLabel",
"Quat",
]
register_component_block("c4_pose", C4PoseConfig)
@@ -0,0 +1,37 @@
"""C4 ``ISam2GraphHandle`` Protocol stub (AZ-355).
The C5 iSAM2 graph is the shared GTSAM substrate (ADR-003). C4
NEVER owns the graph — it receives a typed handle from the runtime
root and uses ONLY the minimum surface it needs to attach pose
factors against C5's key namespace.
Per the C4 contract this Protocol exposes ONLY
``get_pose_key(frame_id) -> int`` — the C5 concrete handle
(``components.c5_state._isam2_handle.ISam2GraphHandleImpl``) is
strictly a superset of this surface, so a duck-typed satisfaction
check via ``isinstance(handle, ISam2GraphHandle)`` succeeds without
C4 importing C5 internals.
Risk-1 mitigation per the AZ-355 task spec: if C5's graph design
grows, this stub grows ONLY if C4's needs grow. Otherwise the two
Protocols diverge cleanly along the producer/consumer split.
"""
from __future__ import annotations
from typing import Protocol, runtime_checkable
__all__ = ["ISam2GraphHandle"]
@runtime_checkable
class ISam2GraphHandle(Protocol):
"""Read-only view of C5's iSAM2 graph for C4's pose-factor adds."""
def get_pose_key(self, frame_id: int) -> int:
"""Map a C4 frame_id to the corresponding GTSAM pose key.
C5 owns the key allocation policy (typically
``gtsam.symbol('x', frame_id)``); C4 only needs the integer
key to construct a ``PriorFactorPose3``.
"""
@@ -0,0 +1,64 @@
"""C4 pose-estimator config block (AZ-355).
Registered into the global config registry via
``register_component_block("c4_pose", C4PoseConfig)`` on import of
``gps_denied_onboard.components.c4_pose``. The runtime root reads
``config.components["c4_pose"]`` and dispatches to the
``opencv_gtsam`` strategy (the only one defined; the Protocol exists
for ADR-009).
"""
from __future__ import annotations
from dataclasses import dataclass
from typing import Final
from gps_denied_onboard.config.schema import ConfigError
__all__ = ["KNOWN_POSE_STRATEGIES", "C4PoseConfig"]
KNOWN_POSE_STRATEGIES: Final[frozenset[str]] = frozenset({"opencv_gtsam"})
@dataclass(frozen=True)
class C4PoseConfig:
"""C4 pose-estimator config block.
Fields per the C4 contract §"Config-load-time validation":
* ``strategy`` — selects the concrete estimator. Currently only
``"opencv_gtsam"`` is defined.
* ``ransac_iterations`` — OpenCV ``solvePnPRansac`` iteration
budget. Default 200 per the contract.
* ``ransac_reprojection_threshold_px`` — RANSAC inlier-distance
threshold. Default 4.0 pixels per the contract.
* ``thermal_throttle_threshold_celsius`` — informational only;
the actual ``ThermalState.throttle`` decision is owned by C7
(AZ-302). Default 75.0 °C.
"""
strategy: str = "opencv_gtsam"
ransac_iterations: int = 200
ransac_reprojection_threshold_px: float = 4.0
thermal_throttle_threshold_celsius: float = 75.0
def __post_init__(self) -> None:
if self.strategy not in KNOWN_POSE_STRATEGIES:
raise ConfigError(
f"C4PoseConfig.strategy={self.strategy!r} not in {sorted(KNOWN_POSE_STRATEGIES)}"
)
if self.ransac_iterations <= 0:
raise ConfigError(
f"C4PoseConfig.ransac_iterations must be > 0; got {self.ransac_iterations}"
)
if self.ransac_reprojection_threshold_px <= 0.0:
raise ConfigError(
"C4PoseConfig.ransac_reprojection_threshold_px must be > 0; "
f"got {self.ransac_reprojection_threshold_px}"
)
if self.thermal_throttle_threshold_celsius <= 0.0:
raise ConfigError(
"C4PoseConfig.thermal_throttle_threshold_celsius must be > 0; "
f"got {self.thermal_throttle_threshold_celsius}"
)
@@ -0,0 +1,59 @@
"""C4 PoseEstimator error hierarchy (AZ-355).
Per the C4 contract (Invariant 9) and AC-4: ``PnpFailureError`` is
the ONLY non-warning exception that escapes ``PoseEstimator.estimate``.
``CovarianceDegradedWarning`` is a Python ``Warning`` (NOT an
``Exception``) — emitted via ``warnings.warn(...)`` at the start of
every Jacobian-path frame so a ``try / except Exception`` block in
the caller does NOT swallow it. R10 acceptance for the C4 contract
hangs on this distinction.
``PoseEstimatorConfigError`` is raised by the composition-root
factory (``runtime_root.pose_factory.build_pose_estimator``) for
unknown strategies, missing dependencies, or thread-binding
violations.
"""
from __future__ import annotations
__all__ = [
"CovarianceDegradedWarning",
"PnpFailureError",
"PoseEstimatorConfigError",
"PoseEstimatorError",
]
class PoseEstimatorError(Exception):
"""Base class for all C4 ``PoseEstimator`` errors."""
class PnpFailureError(PoseEstimatorError):
"""RANSAC convergence failure or degenerate match geometry.
Per Invariant 9 this is NEVER converted to a fallback
``PoseEstimate`` inside C4 — the fallback decision belongs to
C5 (AZ-385's source-label gate + AZ-388's no-estimate watchdog).
"""
class PoseEstimatorConfigError(PoseEstimatorError):
"""Composition-root factory rejection.
Raised by ``build_pose_estimator`` for unknown ``config.pose.strategy``
values, missing constructor dependencies, or attempted thread-binding
violations.
"""
class CovarianceDegradedWarning(Warning):
"""Per-frame thermal-state-driven Jacobian-path engagement.
NOT an exception. Emitted via ``warnings.warn(...)`` by the
Jacobian path (AZ-361 / D-CROSS-LATENCY-1). Per AC-4 callers MUST
use ``warnings.catch_warnings(...)`` or
``warnings.simplefilter("once", CovarianceDegradedWarning)`` if
they need to observe these warnings — a ``try / except Exception``
block does NOT catch them, because ``Warning`` does not subclass
``Exception`` in Python.
"""
@@ -1,20 +1,69 @@
"""C4 `PoseEstimator` Protocol.
"""C4 ``PoseEstimator`` Protocol (AZ-355).
Concrete impl: OpenCV `solvePnPRansac` + GTSAM Marginals. See
`_docs/02_document/components/06_c4_pose/`.
Per ADR-009 (interface-first DI) consumers (C5, runtime root, tests)
hold a typed reference to ``PoseEstimator`` rather than the concrete
``OpenCVGtsamPoseEstimator`` (AZ-358) class. ADR-002 build-time
exclusion does NOT apply — exactly one concrete implementation
exists — but the Protocol + factory wiring matches the C2 / C2.5 /
C3 / C3.5 pattern for symmetry.
The Protocol surface is two methods:
* :meth:`PoseEstimator.estimate` — full per-frame pose estimation
pipeline (PnP + factor add + covariance recovery). Raises
:class:`PnpFailureError` on RANSAC failure.
* :meth:`PoseEstimator.current_covariance_mode` — exposes the
per-frame decision (marginals / jacobian) for C5 FDR provenance
and the C4-IT-03 mode-switch test.
The Protocol is ``@runtime_checkable`` so test fakes pass
``isinstance(fake, PoseEstimator)``.
"""
from __future__ import annotations
from typing import Protocol
from typing import TYPE_CHECKING, Protocol, runtime_checkable
from gps_denied_onboard._types.matching import MatchResult
from gps_denied_onboard._types.pose import PoseEstimate
if TYPE_CHECKING:
from gps_denied_onboard._types.calibration import CameraCalibration
from gps_denied_onboard._types.matching import MatchResult
from gps_denied_onboard._types.pose import CovarianceMode, PoseEstimate
from gps_denied_onboard._types.thermal import ThermalState
__all__ = ["PoseEstimator"]
@runtime_checkable
class PoseEstimator(Protocol):
"""Estimate a 6-DoF pose from a verified cross-domain match."""
"""Single-pose estimator producing WGS84 + 6x6 covariance + provenance label.
def estimate(self, match: MatchResult) -> PoseEstimate: ...
Stateless per-frame except for the constructor-injected shared
GTSAM substrate (owned by C5). Per Invariant 1 the implementation
is bound to the same ingest thread as C5 (composition root
enforces).
"""
def estimate(
self,
match_result: MatchResult,
calibration: CameraCalibration,
thermal_state: ThermalState,
) -> PoseEstimate:
"""Run PnP → factor add → covariance recovery.
Per-frame thermal decision: ``thermal_state.throttle == True``
engages the Jacobian path (cheap, ~5-10 % accuracy loss);
``False`` engages the Marginals path (production default).
Raises:
PnpFailureError: RANSAC convergence failure or degenerate
match geometry. C5 owns the fallback decision; this
method NEVER returns a fallback ``PoseEstimate``.
"""
def current_covariance_mode(self) -> CovarianceMode:
"""Return the mode used for the LAST :meth:`estimate` call.
Consumed by C5 for FDR provenance and by C4-IT-03 to verify
the per-frame mode switch.
"""
@@ -372,9 +372,9 @@ class EskfStateEstimator(StateEstimator):
has no graph to throttle); it integrates every anchor as a
regular measurement.
"""
ts_ns = _datetime_to_ns(pose.timestamp)
ts_ns = int(pose.emitted_at)
self._guard_timestamp(ts_ns, source="pose_anchor")
meas_pose = _pose_se3_to_array(pose.pose_se3)
meas_pose = self._pose_estimate_to_matrix(pose)
# Both modes are treated identically by the ESKF — the
# JACOBIAN exclusion is iSAM2-graph-specific. AC-4.
@@ -641,6 +641,29 @@ class EskfStateEstimator(StateEstimator):
)
return WgsConverter.local_enu_to_latlonalt(origin, enu)
def _pose_estimate_to_matrix(self, pose: PoseEstimate) -> np.ndarray:
"""Convert a C4 :class:`PoseEstimate` to a 4x4 homogeneous matrix.
WGS84 → ENU via the injected origin (matches the iSAM2
estimator's helper); ``Quat`` → 3x3 rotation via the local
``_quat_to_rot`` helper applied to a freshly-built quaternion.
"""
origin = self._enu_origin if self._enu_origin is not None else _DEFAULT_ENU_ORIGIN
try:
enu = WgsConverter.latlonalt_to_local_enu(origin, pose.position_wgs84)
except Exception as exc:
raise EstimatorDegradedError(
f"eskf add_pose_anchor: WGS84→ENU failed for frame {pose.frame_id}: {exc}"
) from exc
q = pose.orientation_world_T_body
rotation = _quat_to_rot(
np.array([float(q.w), float(q.x), float(q.y), float(q.z)], dtype=np.float64)
)
matrix = np.eye(4, dtype=np.float64)
matrix[:3, :3] = rotation
matrix[:3, 3] = enu
return matrix
def _compute_last_anchor_age_ms(self, now_ns: int) -> int:
if self._last_anchor_ns == 0:
return now_ns // 1_000_000
@@ -476,11 +476,11 @@ class GtsamIsam2StateEstimator(StateEstimator):
gate (AZ-385) and ``last_anchor_age_ms`` see a recent anchor.
"""
handle = self._require_handle()
ts_ns = _datetime_to_ns(pose.timestamp)
ts_ns = int(pose.emitted_at)
self._guard_timestamp(ts_ns, source="pose_anchor")
pose_key = self.key_for_frame(pose.frame_id)
mode = (pose.covariance_mode or "marginals").lower()
mode = pose.covariance_mode.value
# Both paths update the anchor freshness sentinel. The C5
# contract documents this — even the throttled JACOBIAN path
@@ -488,7 +488,7 @@ class GtsamIsam2StateEstimator(StateEstimator):
self._last_anchor_ns = time.monotonic_ns()
if mode == "marginals":
gtsam_pose = _pose_se3_to_gtsam(pose.pose_se3)
gtsam_pose = _pose_se3_to_gtsam(self._pose_estimate_to_matrix(pose))
noise = _build_pose_noise(pose.covariance_6x6)
factor = gtsam.PriorFactorPose3(pose_key, gtsam_pose, noise)
try:
@@ -1063,6 +1063,26 @@ class GtsamIsam2StateEstimator(StateEstimator):
except Exception as exc:
raise EstimatorFatalError(f"_enu_pose_to_wgs84 failed: {exc}") from exc
def _pose_estimate_to_matrix(self, pose: PoseEstimate) -> np.ndarray:
"""Convert a C4 :class:`PoseEstimate` to a 4x4 homogeneous-transform matrix.
WGS84 → ENU via the injected origin; ``Quat`` → 3x3 rotation
via :func:`_quat_dto_to_rot`. The result is what GTSAM's
``Pose3`` constructor consumes.
"""
origin = self._enu_origin if self._enu_origin is not None else _DEFAULT_ENU_ORIGIN
try:
enu = WgsConverter.latlonalt_to_local_enu(origin, pose.position_wgs84)
except Exception as exc:
raise EstimatorDegradedError(
f"add_pose_anchor: WGS84→ENU failed for frame {pose.frame_id}: {exc}"
) from exc
rotation = _quat_dto_to_rot(pose.orientation_world_T_body)
matrix = np.eye(4, dtype=np.float64)
matrix[:3, :3] = rotation
matrix[:3, 3] = enu
return matrix
def _latest_velocity_or_zero(self) -> tuple[float, float, float]:
"""Read the most-recent IMU keyframe's velocity or fall back to zero.
@@ -1258,6 +1278,19 @@ def _pose_se3_to_gtsam(pose_se3: Any) -> gtsam.Pose3:
return gtsam.Pose3(arr)
def _quat_dto_to_rot(q: Quat) -> np.ndarray:
"""Convert a :class:`Quat` DTO (scalar-first, body→world) to a 3x3 rotation."""
w, x, y, z = float(q.w), float(q.x), float(q.y), float(q.z)
return np.array(
[
[1 - 2 * (y * y + z * z), 2 * (x * y - z * w), 2 * (x * z + y * w)],
[2 * (x * y + z * w), 1 - 2 * (x * x + z * z), 2 * (y * z - x * w)],
[2 * (x * z - y * w), 2 * (y * z + x * w), 1 - 2 * (x * x + y * y)],
],
dtype=np.float64,
)
def _build_pose_noise(covariance: Any | None) -> gtsam.noiseModel.Base:
"""Build a 6-DoF Gaussian noise model from a 6x6 covariance.
@@ -36,6 +36,12 @@ from gps_denied_onboard.runtime_root.fc_factory import (
register_fc_adapter,
register_gcs_adapter,
)
from gps_denied_onboard.runtime_root.pose_factory import (
build_pose_estimator,
clear_pose_registry,
list_registered_pose_strategies,
register_pose_estimator,
)
from gps_denied_onboard.runtime_root.spoof_recovery_sink import (
SpoofRecoveryPublisher,
SpoofRecoverySink,
@@ -72,8 +78,10 @@ __all__ = [
"bind_state_ingest_thread",
"build_fc_adapter",
"build_gcs_adapter",
"build_pose_estimator",
"build_state_estimator",
"clear_outbound_thread_binding",
"clear_pose_registry",
"clear_state_ingest_binding",
"clear_state_registry",
"clear_strategy_registries",
@@ -83,11 +91,13 @@ __all__ = [
"compose_root",
"list_registered_fc_strategies",
"list_registered_gcs_strategies",
"list_registered_pose_strategies",
"list_registered_state_strategies",
"list_registered_strategies",
"main",
"register_fc_adapter",
"register_gcs_adapter",
"register_pose_estimator",
"register_state_estimator",
"register_strategy",
"take_off",
@@ -0,0 +1,181 @@
"""Composition-root factory for C4 pose estimator (AZ-355 / E-C4).
Mirrors :mod:`gps_denied_onboard.runtime_root.state_factory` — per
ADR-001 the composition root is the single registration site for
all strategy factories. C4 has exactly ONE concrete strategy
(``opencv_gtsam`` → AZ-358); the Protocol exists for ADR-009
(interface-first DI) so callers don't import the concrete class.
The runtime root constructs the dependencies (RansacFilter,
WgsConverter, SE3Utils, ISam2GraphHandle) ONCE and passes references
through this factory. The factory does NOT instantiate them.
Per the C4 contract Invariant 1 + AC-9: the C4 estimator is bound
to the SAME ingest thread as C5 (ADR-003 shared GTSAM substrate is
not thread-safe). The thread-binding helper is shared with the C5
state factory (``bind_state_ingest_thread``); a second binding
from a different thread raises
:class:`StateIngestThreadAlreadyBoundError`.
"""
from __future__ import annotations
import importlib
from collections.abc import Callable
from typing import TYPE_CHECKING, Any, Final
from gps_denied_onboard.components.c4_pose._isam2_handle import ISam2GraphHandle
from gps_denied_onboard.components.c4_pose.config import (
KNOWN_POSE_STRATEGIES,
C4PoseConfig,
)
from gps_denied_onboard.components.c4_pose.errors import PoseEstimatorConfigError
from gps_denied_onboard.components.c4_pose.interface import PoseEstimator
from gps_denied_onboard.logging import get_logger
if TYPE_CHECKING:
from gps_denied_onboard.config import Config
__all__ = [
"PoseEstimatorFactory",
"build_pose_estimator",
"clear_pose_registry",
"list_registered_pose_strategies",
"register_pose_estimator",
]
PoseEstimatorFactory = Callable[..., PoseEstimator]
_POSE_REGISTRY: dict[str, PoseEstimatorFactory] = {}
# Single concrete strategy (ADR-001); module path for lazy-import
# fallback when the test/binary did not pre-register.
_STRATEGY_MODULE_PATHS: Final[dict[str, str]] = {
"opencv_gtsam": "gps_denied_onboard.components.c4_pose.opencv_gtsam_estimator",
}
def register_pose_estimator(strategy: str, factory: PoseEstimatorFactory) -> None:
"""Register a concrete ``PoseEstimator`` strategy.
Duplicate registration with a different factory raises
:class:`PoseEstimatorConfigError`.
"""
existing = _POSE_REGISTRY.get(strategy)
if existing is not None and existing is not factory:
raise PoseEstimatorConfigError(
f"duplicate PoseEstimator registration for strategy {strategy!r}"
)
_POSE_REGISTRY[strategy] = factory
def clear_pose_registry() -> None:
"""Reset the pose registry; unit-test isolation only."""
_POSE_REGISTRY.clear()
def list_registered_pose_strategies() -> list[str]:
return sorted(_POSE_REGISTRY)
def build_pose_estimator(
config: Config,
*,
ransac_filter: Any,
wgs_converter: Any,
se3_utils: Any,
isam2_graph_handle: ISam2GraphHandle,
) -> PoseEstimator:
"""Resolve + build the configured C4 pose estimator.
Validation order: config block lookup → strategy known? →
isam2_graph_handle conforms? → factory lookup (with lazy-import
fallback) → INFO log on success.
Raises:
PoseEstimatorConfigError: invalid config, unknown strategy,
non-conforming graph handle, or registry miss after
lazy-import fallback.
"""
block = _read_pose_block(config)
strategy = block.strategy
log = get_logger("runtime_root.pose_factory")
if strategy not in KNOWN_POSE_STRATEGIES:
log.error(
"c4.pose.unknown_strategy",
extra={
"kind": "c4.pose.unknown_strategy",
"kv": {
"strategy": strategy,
"known": sorted(KNOWN_POSE_STRATEGIES),
},
},
)
raise PoseEstimatorConfigError(
f"C4PoseConfig.strategy={strategy!r} not in {sorted(KNOWN_POSE_STRATEGIES)}"
)
if not isinstance(isam2_graph_handle, ISam2GraphHandle):
raise PoseEstimatorConfigError(
"build_pose_estimator: isam2_graph_handle does not satisfy "
"the C4 ISam2GraphHandle Protocol (missing get_pose_key?)"
)
factory = _resolve_factory(strategy)
estimator = factory(
config=config,
ransac_filter=ransac_filter,
wgs_converter=wgs_converter,
se3_utils=se3_utils,
isam2_graph_handle=isam2_graph_handle,
)
log.info(
f"c4.pose.strategy_loaded: strategy={strategy} "
f"ransac_iterations={block.ransac_iterations} "
f"ransac_reprojection_threshold_px={block.ransac_reprojection_threshold_px}",
extra={
"kind": "c4.pose.strategy_loaded",
"kv": {
"strategy": strategy,
"ransac_iterations": block.ransac_iterations,
"ransac_reprojection_threshold_px": block.ransac_reprojection_threshold_px,
"thermal_throttle_threshold_celsius": (block.thermal_throttle_threshold_celsius),
},
},
)
return estimator
def _read_pose_block(config: Config) -> C4PoseConfig:
components = getattr(config, "components", None) or {}
block = components.get("c4_pose") if isinstance(components, dict) else None
if block is None:
return C4PoseConfig()
if isinstance(block, C4PoseConfig):
return block
raise PoseEstimatorConfigError(
f"config.components['c4_pose'] must be a C4PoseConfig; got {type(block).__name__}"
)
def _resolve_factory(strategy: str) -> PoseEstimatorFactory:
factory = _POSE_REGISTRY.get(strategy)
if factory is not None:
return factory
module_path = _STRATEGY_MODULE_PATHS.get(strategy)
if module_path is None:
raise PoseEstimatorConfigError(
f"pose strategy {strategy!r} has no module-path mapping for lazy import"
)
try:
module = importlib.import_module(module_path)
except ImportError as exc:
raise PoseEstimatorConfigError(
f"pose strategy {strategy!r} module {module_path!r} not importable: {exc}"
) from exc
factory_obj = getattr(module, "create", None)
if factory_obj is None or not callable(factory_obj):
raise PoseEstimatorConfigError(
f"pose strategy {strategy!r} module {module_path!r} has no create(...) factory"
)
return factory_obj
@@ -0,0 +1,459 @@
"""AZ-355 — C4 PoseEstimator Protocol + Factory + DTOs + Composition.
Tests cover AC-1..AC-10 from
``_docs/02_tasks/todo/AZ-355_c4_pose_protocol.md``:
- AC-1 Protocol conformance — ``runtime_checkable``.
- AC-2 DTOs are frozen + slots.
- AC-3 Enums have the documented values.
- AC-4 ``CovarianceDegradedWarning`` IS-A ``Warning`` NOT ``Exception``.
- AC-5 ``PnpFailureError`` IS-A ``Exception``.
- AC-6 Factory rejects unknown strategy.
- AC-7 Factory accepts ``"opencv_gtsam"`` and emits INFO log.
- AC-8 Public API surface — ``__init__.py`` re-exports.
- AC-9 Strategy bound to single ingest thread (same thread as C5).
- AC-10 ``ISam2GraphHandle`` Protocol stub conforms to
``runtime_checkable``.
"""
from __future__ import annotations
import dataclasses
import logging
import threading
import warnings
from dataclasses import FrozenInstanceError
from typing import Any
from unittest import mock
from uuid import UUID, uuid4
import numpy as np
import pytest
from gps_denied_onboard._types.geo import LatLonAlt
from gps_denied_onboard._types.pose import (
CovarianceMode,
PoseEstimate,
PoseSourceLabel,
Quat,
)
from gps_denied_onboard.components.c4_pose import (
C4PoseConfig,
CovarianceDegradedWarning,
PnpFailureError,
PoseEstimator,
PoseEstimatorConfigError,
PoseEstimatorError,
)
from gps_denied_onboard.components.c4_pose._isam2_handle import ISam2GraphHandle
from gps_denied_onboard.config import load_config
from gps_denied_onboard.config.schema import Config
from gps_denied_onboard.runtime_root.pose_factory import (
build_pose_estimator,
clear_pose_registry,
register_pose_estimator,
)
from gps_denied_onboard.runtime_root.state_factory import (
StateIngestThreadAlreadyBoundError,
bind_state_ingest_thread,
clear_state_ingest_binding,
)
@pytest.fixture(autouse=True)
def _isolation():
clear_pose_registry()
clear_state_ingest_binding()
yield
clear_pose_registry()
clear_state_ingest_binding()
def _build_config(**overrides: Any) -> Config:
cfg = load_config(env={}, paths=(), require_env=False)
new_block = dataclasses.replace(C4PoseConfig(), **overrides)
components = dict(cfg.components or {})
components["c4_pose"] = new_block
return dataclasses.replace(cfg, components=components)
class _FakeISam2GraphHandle:
"""Minimal handle stub for factory / Protocol tests."""
def get_pose_key(self, frame_id: int) -> int:
return int(frame_id)
class _FakePoseEstimator:
"""Test double satisfying the full PoseEstimator Protocol."""
def estimate(self, match_result: Any, calibration: Any, thermal_state: Any) -> PoseEstimate:
return PoseEstimate(
frame_id=uuid4(),
position_wgs84=LatLonAlt(lat_deg=0.0, lon_deg=0.0, alt_m=0.0),
orientation_world_T_body=Quat(w=1.0, x=0.0, y=0.0, z=0.0),
covariance_6x6=np.eye(6, dtype=np.float64),
covariance_mode=CovarianceMode.MARGINALS,
source_label=PoseSourceLabel.SATELLITE_ANCHORED,
last_satellite_anchor_age_ms=0,
emitted_at=0,
)
def current_covariance_mode(self) -> CovarianceMode:
return CovarianceMode.MARGINALS
# ---------------------------------------------------------------------
# AC-1: Protocol conformance — runtime_checkable
def test_ac1_full_fake_satisfies_protocol() -> None:
fake = _FakePoseEstimator()
assert isinstance(fake, PoseEstimator)
def test_ac1_partial_fake_fails_protocol() -> None:
class _OnlyEstimate:
def estimate(self, match_result: Any, calibration: Any, thermal_state: Any) -> Any:
return None
# Missing current_covariance_mode → fails isinstance
assert not isinstance(_OnlyEstimate(), PoseEstimator)
# ---------------------------------------------------------------------
# AC-2: DTOs are frozen + slots
def test_ac2_lat_lon_alt_frozen_and_slotted() -> None:
p = LatLonAlt(lat_deg=1.0, lon_deg=2.0, alt_m=3.0)
assert LatLonAlt.__dataclass_params__.frozen is True
assert hasattr(LatLonAlt, "__slots__")
assert tuple(LatLonAlt.__slots__) == ("lat_deg", "lon_deg", "alt_m")
with pytest.raises(FrozenInstanceError):
p.lat_deg = 99.0 # type: ignore[misc]
def test_ac2_quat_frozen_and_slotted() -> None:
q = Quat(w=1.0, x=0.0, y=0.0, z=0.0)
assert Quat.__dataclass_params__.frozen is True
assert hasattr(Quat, "__slots__")
assert tuple(Quat.__slots__) == ("w", "x", "y", "z")
with pytest.raises(FrozenInstanceError):
q.w = 0.0 # type: ignore[misc]
def test_ac2_pose_estimate_frozen_and_slotted() -> None:
pe = PoseEstimate(
frame_id=uuid4(),
position_wgs84=LatLonAlt(0.0, 0.0, 0.0),
orientation_world_T_body=Quat(1.0, 0.0, 0.0, 0.0),
covariance_6x6=np.eye(6),
covariance_mode=CovarianceMode.MARGINALS,
source_label=PoseSourceLabel.SATELLITE_ANCHORED,
last_satellite_anchor_age_ms=0,
emitted_at=0,
)
assert PoseEstimate.__dataclass_params__.frozen is True
assert hasattr(PoseEstimate, "__slots__")
assert len(PoseEstimate.__slots__) == 8
with pytest.raises(FrozenInstanceError):
pe.last_satellite_anchor_age_ms = 1 # type: ignore[misc]
# ---------------------------------------------------------------------
# AC-3: Enums have the documented values
def test_ac3_covariance_mode_has_exactly_marginals_and_jacobian() -> None:
members = {m.name for m in CovarianceMode}
assert members == {"MARGINALS", "JACOBIAN"}
assert CovarianceMode.MARGINALS.value == "marginals"
assert CovarianceMode.JACOBIAN.value == "jacobian"
def test_ac3_pose_source_label_has_three_documented_values() -> None:
members = {m.name for m in PoseSourceLabel}
assert members == {"SATELLITE_ANCHORED", "VISUAL_PROPAGATED", "DEAD_RECKONED"}
# ---------------------------------------------------------------------
# AC-4: CovarianceDegradedWarning IS-A Warning NOT Exception
def test_ac4_covariance_degraded_warning_subclasses_warning() -> None:
# AC-4 intent: CovarianceDegradedWarning must be on the Warning branch
# of the exception tree so the warnings machinery handles it. Python's
# actual hierarchy has Warning < Exception < BaseException, so the
# behavioural test (warnings.warn does not raise; except Exception does
# not catch) below is what the contract really pins.
assert issubclass(CovarianceDegradedWarning, Warning)
def test_ac4_try_except_exception_does_not_catch_the_warning() -> None:
caught_via_exception = False
captured: list[Warning] = []
with warnings.catch_warnings(record=True) as records:
warnings.simplefilter("always")
try:
warnings.warn("throttle engaged", CovarianceDegradedWarning, stacklevel=1)
except Exception:
caught_via_exception = True
for r in records:
if isinstance(r.message, CovarianceDegradedWarning):
captured.append(r.message)
# warnings.warn(...) does NOT raise — it emits through the filter chain.
# The try/except Exception block above MUST NOT see the warning even
# though Warning subclasses Exception in the class hierarchy.
assert caught_via_exception is False
assert len(captured) == 1
# ---------------------------------------------------------------------
# AC-5: PnpFailureError IS-A Exception
def test_ac5_pnp_failure_error_subclasses_pose_estimator_error_and_exception() -> None:
assert issubclass(PnpFailureError, PoseEstimatorError)
assert issubclass(PnpFailureError, Exception)
def test_ac5_pnp_failure_error_caught_by_except_exception() -> None:
caught = False
try:
raise PnpFailureError("RANSAC failed")
except Exception:
caught = True
assert caught
# ---------------------------------------------------------------------
# AC-6: Factory rejects unknown strategy
def test_ac6_factory_rejects_unknown_strategy(
caplog: pytest.LogCaptureFixture,
) -> None:
bad_block = C4PoseConfig.__new__(C4PoseConfig)
object.__setattr__(bad_block, "strategy", "garbage")
object.__setattr__(bad_block, "ransac_iterations", 200)
object.__setattr__(bad_block, "ransac_reprojection_threshold_px", 4.0)
object.__setattr__(bad_block, "thermal_throttle_threshold_celsius", 75.0)
cfg = load_config(env={}, paths=(), require_env=False)
components = dict(cfg.components or {})
components["c4_pose"] = bad_block
bad_cfg = dataclasses.replace(cfg, components=components)
with caplog.at_level(logging.ERROR):
with pytest.raises(PoseEstimatorConfigError, match="garbage"):
build_pose_estimator(
bad_cfg,
ransac_filter=mock.MagicMock(),
wgs_converter=mock.MagicMock(),
se3_utils=mock.MagicMock(),
isam2_graph_handle=_FakeISam2GraphHandle(),
)
error_records = [
r for r in caplog.records if getattr(r, "kind", None) == "c4.pose.unknown_strategy"
]
assert len(error_records) == 1
def test_ac6_factory_rejects_non_conforming_graph_handle() -> None:
cfg = _build_config()
class _BrokenHandle:
pass
with pytest.raises(PoseEstimatorConfigError, match="ISam2GraphHandle"):
build_pose_estimator(
cfg,
ransac_filter=mock.MagicMock(),
wgs_converter=mock.MagicMock(),
se3_utils=mock.MagicMock(),
isam2_graph_handle=_BrokenHandle(), # type: ignore[arg-type]
)
# ---------------------------------------------------------------------
# AC-7: Factory accepts "opencv_gtsam" and emits INFO log
def test_ac7_factory_accepts_opencv_gtsam_and_emits_info_log(
caplog: pytest.LogCaptureFixture,
) -> None:
cfg = _build_config()
def _factory(**kwargs: Any) -> PoseEstimator:
return _FakePoseEstimator()
register_pose_estimator("opencv_gtsam", _factory)
with caplog.at_level(logging.INFO):
estimator = build_pose_estimator(
cfg,
ransac_filter=mock.MagicMock(),
wgs_converter=mock.MagicMock(),
se3_utils=mock.MagicMock(),
isam2_graph_handle=_FakeISam2GraphHandle(),
)
assert isinstance(estimator, PoseEstimator)
info_records = [
r for r in caplog.records if getattr(r, "kind", None) == "c4.pose.strategy_loaded"
]
assert len(info_records) == 1
record = info_records[0]
assert record.kv["strategy"] == "opencv_gtsam"
assert record.kv["ransac_iterations"] == 200
assert record.kv["ransac_reprojection_threshold_px"] == 4.0
assert record.kv["thermal_throttle_threshold_celsius"] == 75.0
# ---------------------------------------------------------------------
# AC-8: Public API surface
def test_ac8_public_api_re_exports() -> None:
from gps_denied_onboard.components import c4_pose
expected_public = {
"C4PoseConfig",
"CovarianceDegradedWarning",
"CovarianceMode",
"LatLonAlt",
"PnpFailureError",
"PoseEstimate",
"PoseEstimator",
"PoseEstimatorConfigError",
"PoseEstimatorError",
"PoseSourceLabel",
"Quat",
}
assert expected_public.issubset(set(c4_pose.__all__))
def test_ac8_internals_not_in_public_all() -> None:
from gps_denied_onboard.components import c4_pose
assert "ISam2GraphHandle" not in c4_pose.__all__
assert "_isam2_handle" not in c4_pose.__all__
# ---------------------------------------------------------------------
# AC-9: Strategy bound to single ingest thread (same thread as C5)
def test_ac9_bind_state_ingest_thread_rejects_second_thread() -> None:
primary = bind_state_ingest_thread()
other_ident = primary + 1
with pytest.raises(StateIngestThreadAlreadyBoundError):
bind_state_ingest_thread(other_ident)
def test_ac9_bind_state_ingest_thread_idempotent_for_same_thread() -> None:
primary = bind_state_ingest_thread()
again = bind_state_ingest_thread()
assert primary == again
assert primary == threading.get_ident()
# ---------------------------------------------------------------------
# AC-10: ISam2GraphHandle Protocol stub conforms to runtime_checkable
def test_ac10_isam2_graph_handle_runtime_checkable() -> None:
handle = _FakeISam2GraphHandle()
assert isinstance(handle, ISam2GraphHandle)
def test_ac10_isam2_graph_handle_rejects_missing_method() -> None:
class _NoMethod:
pass
assert not isinstance(_NoMethod(), ISam2GraphHandle)
# ---------------------------------------------------------------------
# Bonus: factory wires constructor dependencies through to the strategy
def test_factory_passes_dependencies_to_strategy() -> None:
captured: dict[str, Any] = {}
def _factory(**kwargs: Any) -> PoseEstimator:
captured.update(kwargs)
return _FakePoseEstimator()
register_pose_estimator("opencv_gtsam", _factory)
handle = _FakeISam2GraphHandle()
ransac = mock.MagicMock()
wgs = mock.MagicMock()
se3 = mock.MagicMock()
cfg = _build_config()
build_pose_estimator(
cfg,
ransac_filter=ransac,
wgs_converter=wgs,
se3_utils=se3,
isam2_graph_handle=handle,
)
assert captured["ransac_filter"] is ransac
assert captured["wgs_converter"] is wgs
assert captured["se3_utils"] is se3
assert captured["isam2_graph_handle"] is handle
def test_factory_lazy_imports_when_registry_empty() -> None:
cfg = _build_config()
# Registry is cleared by the fixture; the lazy-import fallback
# should attempt to import the concrete module. We have not
# shipped opencv_gtsam_estimator yet (AZ-358), so the import
# raises and gets wrapped in PoseEstimatorConfigError.
with pytest.raises(PoseEstimatorConfigError):
build_pose_estimator(
cfg,
ransac_filter=mock.MagicMock(),
wgs_converter=mock.MagicMock(),
se3_utils=mock.MagicMock(),
isam2_graph_handle=_FakeISam2GraphHandle(),
)
# ---------------------------------------------------------------------
# Bonus: config validation
def test_config_rejects_unknown_strategy_at_post_init() -> None:
from gps_denied_onboard.config.schema import ConfigError
with pytest.raises(ConfigError, match="garbage"):
C4PoseConfig(strategy="garbage")
def test_config_rejects_zero_ransac_iterations() -> None:
from gps_denied_onboard.config.schema import ConfigError
with pytest.raises(ConfigError, match="ransac_iterations"):
C4PoseConfig(ransac_iterations=0)
def test_pose_estimate_uuid_frame_id() -> None:
pe = PoseEstimate(
frame_id=UUID(int=42),
position_wgs84=LatLonAlt(0.0, 0.0, 0.0),
orientation_world_T_body=Quat(1.0, 0.0, 0.0, 0.0),
covariance_6x6=np.eye(6),
covariance_mode=CovarianceMode.MARGINALS,
source_label=PoseSourceLabel.SATELLITE_ANCHORED,
last_satellite_anchor_age_ms=42,
emitted_at=1_000_000_000,
)
assert isinstance(pe.frame_id, UUID)
assert pe.emitted_at == 1_000_000_000
+21 -7
View File
@@ -25,13 +25,20 @@ from __future__ import annotations
import logging
from datetime import datetime, timezone
from unittest import mock
from uuid import UUID
import gtsam
import numpy as np
import pytest
from gps_denied_onboard._types.geo import LatLonAlt
from gps_denied_onboard._types.nav import ImuSample, ImuWindow
from gps_denied_onboard._types.pose import PoseEstimate
from gps_denied_onboard._types.pose import (
CovarianceMode,
PoseEstimate,
PoseSourceLabel,
Quat,
)
from gps_denied_onboard._types.vio import VioOutput
from gps_denied_onboard.components.c5_state.config import C5StateConfig
from gps_denied_onboard.components.c5_state.errors import EstimatorDegradedError
@@ -79,15 +86,22 @@ def _make_pose(
*,
frame_id: int,
t_seconds: float,
covariance_mode: str = "marginals",
pose: np.ndarray | None = None,
covariance_mode: CovarianceMode | str = CovarianceMode.MARGINALS,
) -> PoseEstimate:
mode = (
covariance_mode
if isinstance(covariance_mode, CovarianceMode)
else CovarianceMode(covariance_mode.lower())
)
return PoseEstimate(
frame_id=frame_id,
timestamp=datetime.fromtimestamp(t_seconds, tz=timezone.utc),
pose_se3=pose if pose is not None else np.eye(4),
frame_id=UUID(int=frame_id),
position_wgs84=LatLonAlt(lat_deg=0.0, lon_deg=0.0, alt_m=0.0),
orientation_world_T_body=Quat(w=1.0, x=0.0, y=0.0, z=0.0),
covariance_6x6=np.eye(6) * 0.01,
covariance_mode=covariance_mode,
covariance_mode=mode,
source_label=PoseSourceLabel.SATELLITE_ANCHORED,
last_satellite_anchor_age_ms=0,
emitted_at=int(t_seconds * 1_000_000_000),
)
@@ -29,14 +29,15 @@ import dataclasses
from datetime import datetime, timezone
from typing import Any
from unittest import mock
from uuid import uuid4
from uuid import UUID, uuid4
import numpy as np
import pytest
from gps_denied_onboard._types.fc import GpsHealth, GpsStatus
from gps_denied_onboard._types.geo import LatLonAlt
from gps_denied_onboard._types.nav import ImuSample, ImuWindow
from gps_denied_onboard._types.pose import PoseEstimate
from gps_denied_onboard._types.pose import CovarianceMode, PoseEstimate, Quat
from gps_denied_onboard._types.state import IsamState, PoseSourceLabel
from gps_denied_onboard._types.vio import VioOutput
from gps_denied_onboard.components.c5_state import (
@@ -52,6 +53,7 @@ from gps_denied_onboard.components.c5_state.eskf_baseline import (
)
from gps_denied_onboard.config import load_config
from gps_denied_onboard.config.schema import Config
from gps_denied_onboard.helpers.wgs_converter import WgsConverter
from gps_denied_onboard.runtime_root.state_factory import (
build_state_estimator,
clear_state_ingest_binding,
@@ -117,20 +119,60 @@ def _vio(
)
_ENU_ORIGIN = LatLonAlt(lat_deg=0.0, lon_deg=0.0, alt_m=0.0)
def _rot_to_quat(R: np.ndarray) -> Quat:
"""3x3 rotation → unit quaternion (w,x,y,z); standard robust formula."""
trace = R[0, 0] + R[1, 1] + R[2, 2]
if trace > 0:
s = 0.5 / np.sqrt(trace + 1.0)
w = 0.25 / s
x = (R[2, 1] - R[1, 2]) * s
y = (R[0, 2] - R[2, 0]) * s
z = (R[1, 0] - R[0, 1]) * s
elif R[0, 0] > R[1, 1] and R[0, 0] > R[2, 2]:
s = 2.0 * np.sqrt(1.0 + R[0, 0] - R[1, 1] - R[2, 2])
w = (R[2, 1] - R[1, 2]) / s
x = 0.25 * s
y = (R[0, 1] + R[1, 0]) / s
z = (R[0, 2] + R[2, 0]) / s
elif R[1, 1] > R[2, 2]:
s = 2.0 * np.sqrt(1.0 + R[1, 1] - R[0, 0] - R[2, 2])
w = (R[0, 2] - R[2, 0]) / s
x = (R[0, 1] + R[1, 0]) / s
y = 0.25 * s
z = (R[1, 2] + R[2, 1]) / s
else:
s = 2.0 * np.sqrt(1.0 + R[2, 2] - R[0, 0] - R[1, 1])
w = (R[1, 0] - R[0, 1]) / s
x = (R[0, 2] + R[2, 0]) / s
y = (R[1, 2] + R[2, 1]) / s
z = 0.25 * s
return Quat(w=float(w), x=float(x), y=float(y), z=float(z))
def _pose_anchor(
frame_id: int,
ts_ns: int,
pose: np.ndarray,
cov: np.ndarray | None = None,
mode: str = "marginals",
mode: CovarianceMode | str = CovarianceMode.MARGINALS,
) -> PoseEstimate:
rotation = pose[:3, :3]
translation = np.ascontiguousarray(pose[:3, 3], dtype=np.float64)
position = WgsConverter.local_enu_to_latlonalt(_ENU_ORIGIN, translation)
quat = _rot_to_quat(rotation)
mode_enum = mode if isinstance(mode, CovarianceMode) else CovarianceMode(mode.lower())
return PoseEstimate(
frame_id=frame_id,
timestamp=datetime.fromtimestamp(ts_ns / 1_000_000_000, tz=timezone.utc),
pose_se3=pose,
frame_id=UUID(int=frame_id),
position_wgs84=position,
orientation_world_T_body=quat,
covariance_6x6=cov if cov is not None else np.eye(6) * 0.01,
covariance_mode=mode,
mre_px=0.5,
covariance_mode=mode_enum,
source_label=PoseSourceLabel.SATELLITE_ANCHORED,
last_satellite_anchor_age_ms=0,
emitted_at=ts_ns,
)