fixed calibration data not loading due to path

tests/test_signal_processing.py

@@ -2,11 +2,13 @@
 
 from __future__ import annotations
 
+import json
+
 import numpy as np
 import pytest
 from scipy.signal import butter, filtfilt
 
-from orisys import Sensor
+from orisys import Sensor, configs
 from orisys.signal_processing import (
     NORMAL_FORCE_CAL_OFFSET,
     NORMAL_FORCE_CAL_SLOPE,
@@ -263,3 +265,156 @@ def test_configure_hhd_downsample_invalidates_solver_cache():
             sensor.configure(hhd_downsample="nope")
     finally:
         sensor.disconnect()
+
+
+# ------------------------------------------------- bundle resolution anchors
+#
+# The bundle is chosen by the *running* root's folder layout, not by the root's
+# name and not by whichever checkout happens to be importable. These build small
+# real trees, because ``_runtime_roots`` asks the filesystem whether a directory
+# carries ``examples/`` beside ``sensors/``.
+_CAL_DOC = {
+    "schema_version": 2,
+    "unit": "N",
+    "channels": {
+        "normal": {"method": "piecewise_linear", "points": [[0.0, 0.0], [1000.0, 1.0]]},
+        "shear_x": {
+            "method": "piecewise_linear",
+            "signed": True,
+            "points": [[0.0, 0.0], [500.0, 2.0]],
+        },
+        "shear_y": {
+            "method": "piecewise_linear",
+            "signed": True,
+            "points": [[0.0, 0.0], [500.0, 3.0]],
+        },
+    },
+}
+
+
+def _make_root(base, *, name="anything", sensor_json=True, calibration=True):
+    """A runnable SDK root: ``examples/`` beside ``sensors/<name>/``."""
+    root = base / name
+    (root / "examples").mkdir(parents=True, exist_ok=True)
+    if sensor_json:
+        (root / "examples" / "basic_pipeline.py").write_text("# demo\n", encoding="utf-8")
+    bundle = root / "sensors" / "mini"
+    bundle.mkdir(parents=True, exist_ok=True)
+    if sensor_json:
+        (bundle / "sensor.json").write_text(
+            json.dumps({"name": "prototype"}), encoding="utf-8"
+        )
+    if calibration:
+        (bundle / "force_calibration.json").write_text(
+            json.dumps(_CAL_DOC), encoding="utf-8"
+        )
+    return root
+
+
+def test_runtime_root_anchor_keys_on_layout_not_on_the_folder_name(tmp_path):
+    named = _make_root(tmp_path, name="some-random-name")
+    assert configs._is_sdk_runtime_root(named) is True
+
+    no_examples = tmp_path / "dist-like"
+    (no_examples / "sensors" / "mini").mkdir(parents=True)
+    assert configs._is_sdk_runtime_root(no_examples) is False
+
+    neither = tmp_path / "plain"
+    neither.mkdir()
+    assert configs._is_sdk_runtime_root(neither) is False
+
+
+def test_runtime_roots_walk_up_from_a_subdirectory(tmp_path, monkeypatch):
+    root = _make_root(tmp_path, name="renamed-release")
+    subdir = root / "examples"
+    monkeypatch.setattr(configs.Path, "cwd", classmethod(lambda cls: subdir))
+    roots = [str(path) for path in configs._runtime_roots()]
+    assert str(root) in roots
+
+
+def test_the_running_root_bundle_beats_a_calibration_less_checkout(
+    tmp_path, monkeypatch
+):
+    """The reported bug: a nearer bundle without coefficients must not win."""
+    running = _make_root(tmp_path, name="running-root")
+    checkout = _make_root(tmp_path, name="importable-checkout", calibration=False)
+    monkeypatch.setattr(configs, "_runtime_roots", lambda: [running, checkout])
+
+    bundle = configs.resolve_sensor_bundle("mini")
+    assert bundle is not None
+    assert bundle.root == (running / "sensors" / "mini").resolve()
+    assert bundle.force_calibration_json == (
+        running / "sensors" / "mini" / "force_calibration.json"
+    ).resolve()
+
+    # The whole point: the running root's document is the one that reaches the
+    # sensor, split shear and all.
+    sensor = Sensor("external", config_name="mini", verbose=False, backend="cpu")
+    try:
+        assert sensor.force_calibrated is True
+        assert sensor.force_unit == "N"
+        assert sensor.calibration.source_path == (
+            running / "sensors" / "mini" / "force_calibration.json"
+        ).resolve()
+    finally:
+        sensor.disconnect()
+
+
+def test_a_nearer_bundle_wins_even_without_coefficients(tmp_path, monkeypatch):
+    """Nearest bundle wins, so a calibration-less nearer one hides a farther one.
+
+    That is the chosen precedence (the running root is authoritative), and the
+    diagnostic exists precisely so this stops being silent: this is the shape of
+    the original report, where a checkout's ``mini`` has only ``sensor.json``.
+    """
+    checkout = _make_root(tmp_path, name="checkout", calibration=False)
+    running = _make_root(tmp_path, name="run-root")
+    monkeypatch.setattr(configs, "_runtime_roots", lambda: [checkout, running])
+    bundle = configs.resolve_sensor_bundle("mini")
+    assert bundle is not None
+    assert bundle.root == (checkout / "sensors" / "mini").resolve()
+    assert bundle.force_calibration_json is None
+    info = configs.describe_bundle_resolution("mini")
+    assert info["found_root"] == (checkout / "sensors" / "mini").resolve()
+    assert info["force_calibration_json"] is False
+
+
+def test_describe_bundle_resolution_names_the_bundle_and_the_searched_roots(
+    tmp_path, monkeypatch
+):
+    checkout = _make_root(tmp_path, name="checkout", calibration=False)
+    running = _make_root(tmp_path, name="run-root")
+    roots = [checkout / "sensors", running / "sensors"]
+    # Patched at the root list, so no real bundle on this machine can satisfy
+    # the lookup while the "nothing found" case is being asserted.
+    monkeypatch.setattr(configs, "_candidate_sensor_roots", lambda: list(roots))
+
+    info = configs.describe_bundle_resolution("mini")
+    assert info["found_root"] == (checkout / "sensors" / "mini").resolve()
+    assert info["force_calibration_json"] is False
+    assert [str(path) for path in info["searched"]] == [str(p) for p in roots]
+
+    (checkout / "sensors" / "mini" / "sensor.json").unlink()
+    (running / "sensors" / "mini" / "sensor.json").unlink()
+    missing = configs.describe_bundle_resolution("mini")
+    assert missing["found_root"] is None
+    assert missing["sensor_json"] is None
+    assert missing["force_calibration_json"] is False
+
+
+def test_the_calibration_note_names_the_bundle_that_was_found(
+    tmp_path, monkeypatch
+):
+    checkout = _make_root(tmp_path, name="checkout", calibration=False)
+    monkeypatch.setattr(configs, "_runtime_roots", lambda: [checkout])
+    sensor = Sensor("external", config_name="mini", verbose=False, backend="cpu")
+    try:
+        assert sensor.calibration is None
+        # Still None: callers read a non-None value here as "calibrated".
+        assert sensor._force_cal_sensor_name is None
+        note = sensor._force_calibration_note()
+        assert "has no force_calibration.json" in note
+        assert str((checkout / "sensors" / "mini").resolve()) in note
+        assert "roots searched" in note
+    finally:
+        sensor.disconnect()