Kernel rig: inspect cases, the comb of a sketch circle and line and a cylinder edge, and nothing picked refused

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

tests/kernel-cases/inspect/cov-curvature-comb-circle-and-line/expected.json

@@ -0,0 +1,28 @@
+{
+ "sources": [],
+ "what": "the combs of a sketch circle and a line",
+ "source": "analytic",
+ "method": "circle r 7: curvature 1/7 everywhere, radius 7; a line: straight, no radius",
+ "results": [
+  {
+   "command": 4,
+   "pointer": "/combs/0/min_radius",
+   "value": 7.0
+  },
+  {
+   "command": 4,
+   "pointer": "/combs/0/max_curvature",
+   "value": 0.14285714285714285
+  },
+  {
+   "command": 4,
+   "pointer": "/combs/1/min_radius",
+   "value": null
+  },
+  {
+   "command": 4,
+   "pointer": "/combs/1/max_curvature",
+   "value": 0.0
+  }
+ ]
+}

tests/kernel-cases/inspect/cov-curvature-comb-circle-and-line/recipe.json

@@ -0,0 +1,50 @@
+{
+ "commands": [
+  {
+   "command": "sketch.create",
+   "params": {
+    "plane": "XY",
+    "name": "S"
+   }
+  },
+  {
+   "command": "sketch.circle.center",
+   "params": {
+    "center": [
+     0,
+     0
+    ],
+    "radius": 7
+   }
+  },
+  {
+   "command": "sketch.line",
+   "params": {
+    "points": [
+     [
+      0,
+      20
+     ],
+     [
+      10,
+      20
+     ]
+    ]
+   }
+  },
+  {
+   "command": "sketch.finish",
+   "params": {}
+  },
+  {
+   "command": "inspect.curvature_comb",
+   "params": {
+    "sketch": "S",
+    "curves": [
+     "c1",
+     "l1"
+    ]
+   }
+  }
+ ]
+}

tests/kernel-cases/inspect/cov-curvature-comb-cylinder-edge/expected.json

@@ -0,0 +1,18 @@
+{
+ "sources": [],
+ "what": "the comb along a cylinder's top edge",
+ "source": "analytic",
+ "method": "a cylinder r 5 on (60,0,0): its top edge is a circle of r 5, curvature 1/5",
+ "results": [
+  {
+   "command": 1,
+   "pointer": "/combs/0/min_radius",
+   "value": 5.0
+  },
+  {
+   "command": 1,
+   "pointer": "/combs/0/max_curvature",
+   "value": 0.2
+  }
+ ]
+}

tests/kernel-cases/inspect/cov-curvature-comb-cylinder-edge/recipe.json

@@ -0,0 +1,30 @@
+{
+ "commands": [
+  {
+   "command": "solid.cylinder",
+   "params": {
+    "base": [
+     60,
+     0,
+     0
+    ],
+    "radius": 5,
+    "height": 10,
+    "body_name": "Cyl",
+    "operation": "new"
+   }
+  },
+  {
+   "command": "inspect.curvature_comb",
+   "params": {
+    "edges": [
+     [
+      65,
+      0,
+      10
+     ]
+    ]
+   }
+  }
+ ]
+}

tests/kernel-cases/inspect/cov-curvature-comb-refuses-nothing-picked/expected.json

@@ -0,0 +1,8 @@
+{
+ "sources": [],
+ "what": "a comb with no curve, edge or face",
+ "source": "analytic",
+ "method": "box 40 x 30 x 20 with a corner at the origin; nothing picked: refused",
+ "outcome": "refused",
+ "refusal": "give `curves`, `edges` or `faces`"
+}

tests/kernel-cases/inspect/cov-curvature-comb-refuses-nothing-picked/recipe.json

@@ -0,0 +1,18 @@
+{
+ "commands": [
+  {
+   "command": "solid.box",
+   "params": {
+    "length": 40,
+    "width": 30,
+    "height": 20,
+    "body_name": "Box",
+    "operation": "new"
+   }
+  },
+  {
+   "command": "inspect.curvature_comb",
+   "params": {}
+  }
+ ]
+}