Jet review tests: rotated tube, exact edge rule, synthetic flat wall

Test-only. Rotated 30-degree tube: lateral .999 in, 1.001 out, along -0.1
and 4.1 out, Parallel(30 deg) gives the axis unit vector. Separate
axis-aligned exact-edge check: |s| = 1 excluded, Tube along 0/length and
Sector r_min/r_max included. Synthetic hit sampling on a flat face x=10
(no non-circle geometry or kernel coverage): spatial selection |y| <= 1
and off-centre radial vectors from (5, 0) rather than the face normal.
Re-written from Grok's stated cases; the original text was clipped.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

tests/unit/test_jets_review.py

@@ -1,9 +1,12 @@
-"""Grok review cases for claude/jet (test-only; from Grok's inline patch at Slack
+"""Grok review cases for claude/jet (test-only).
-ts 1792052057.423679). The rotated-tube and non-circle-wall cases were clipped
+
-by the Slack reader and are not included yet."""
+The oracle and wrap tests are Grok's inline patch (Slack ts 1792052057.423679).
+The rotated-tube and square-wall cases follow Grok's stated checks; their text
+was clipped in transit, so they are re-written here, not copied verbatim.
+"""
 import math
 import numpy as np
-from CelerisLab.body.jets import Sector
+from CelerisLab.body.jets import Jet, Parallel, Radial, Sector, Tube, jet_link_shapes
 from .test_surface_actuation import circle
 
 
@@ -38,3 +41,39 @@ def test_sector_axis_pi_wraps():
     assert sel.tolist() == [True, True, False]
     sel, _ = Sector((0., 0.), -math.pi, .01, 2.).select(hits)
     assert sel.tolist() == [True, True, False]
+
+
+def test_rotated_tube_30deg_selection_and_parallel_axis():
+    a = math.radians(30)
+    u, n = np.array([math.cos(a), math.sin(a)]), np.array([-math.sin(a), math.cos(a)])
+    hits = np.array([2*u, 2*u + .999*n, 2*u - .999*n, 2*u + 1.001*n, -.1*u, 4.1*u])
+    jet = Jet(Tube((0., 0.), a, 4., 1.), Parallel(a))
+    shape, jet_id = jet_link_shapes([jet], hits)
+    assert (jet_id == 0).tolist() == [True, True, True, False, False, False]
+    np.testing.assert_allclose(shape[:3], np.tile(u, (3, 1)), rtol=0, atol=1e-15)
+    np.testing.assert_array_equal(shape[3:], 0.)
+
+
+def test_exact_edge_rule_axis_aligned():
+    # Exactly representable samples: lateral |s| = 1 is excluded; Tube along
+    # 0 and length and Sector r_min/r_max are included.
+    tube = Tube((0., 0.), 0., 4., 1.)
+    sel, s = tube.select(np.array([[2., 1.], [2., -1.], [2., .5], [0., 0.], [4., 0.]]))
+    assert sel.tolist() == [False, False, True, True, True]
+    assert s.tolist() == [1., -1., .5, 0., 0.]
+    sel, _ = Sector((0., 0.), 0., .5, 2., 1.).select(np.array([[1., 0.], [2., 0.], [.5, 0.], [2.5, 0.]]))
+    assert sel.tolist() == [True, True, False, False]
+
+
+def test_synthetic_square_wall_off_centre_radial():
+    # Synthetic hit sampling on a flat face x=10 (no square geometry, cut links or
+    # kernel involved): selection is purely spatial and the field points away
+    # from (5, 0), not along the face normal (1, 0).
+    y = np.linspace(-2., 2., 9)
+    hits = np.stack((np.full_like(y, 10.), y), axis=1)
+    jet = Jet(Tube((10., -1.), math.pi/2, 2., .5), Radial((5., 0.), inward=False), amplitude=1e-3)
+    shape, jet_id = jet_link_shapes([jet], hits)
+    assert np.array_equal(jet_id == 0, np.abs(y) <= 1)
+    d = hits[jet_id == 0] - (5., 0.)
+    np.testing.assert_allclose(shape[jet_id == 0], d/np.hypot(*d.T)[:, None], rtol=0, atol=1e-15)
+    assert np.abs(shape[jet_id == 0, 1]).max() > .1  # not the wall normal