test: add reproducible FreeCAD golden oracle

fixtures/freecad-golden/manifest.json

@@ -0,0 +1,12 @@
+{
+  "schemaVersion": 1,
+  "baselineId": "freecad-1.1.1",
+  "driver": "scripts/freecad-golden-driver.py",
+  "scenarios": [
+    { "id": "part-box", "file": "scenarios/part-box.json" },
+    { "id": "part-cylinder", "file": "scenarios/part-cylinder.json" },
+    { "id": "part-sphere", "file": "scenarios/part-sphere.json" },
+    { "id": "part-cone", "file": "scenarios/part-cone.json" },
+    { "id": "part-cut-through-hole", "file": "scenarios/part-cut-through-hole.json" }
+  ]
+}

fixtures/freecad-golden/scenarios/part-box.json

@@ -0,0 +1,20 @@
+{
+  "schemaVersion": 1,
+  "id": "part-box",
+  "category": "Part",
+  "description": "Axis-aligned 10 x 20 x 30 mm box",
+  "operation": { "type": "box", "length": 10, "width": 20, "height": 30 },
+  "tolerance": { "linear": 1e-7, "scalar": 1e-7 },
+  "expected": {
+    "shapeType": "Solid",
+    "isNull": false,
+    "isValid": true,
+    "solids": 1,
+    "faces": 6,
+    "edges": 12,
+    "vertices": 8,
+    "volume": 6000,
+    "area": 2200,
+    "boundingBox": { "min": [0, 0, 0], "max": [10, 20, 30] }
+  }
+}

fixtures/freecad-golden/scenarios/part-cone.json

@@ -0,0 +1,16 @@
+{
+  "schemaVersion": 1,
+  "id": "part-cone",
+  "category": "Part",
+  "description": "Truncated cone with radii 5 and 2 mm and height 10 mm",
+  "operation": { "type": "cone", "radius1": 5, "radius2": 2, "height": 10, "angle": 360 },
+  "tolerance": { "linear": 1e-7, "scalar": 1e-7 },
+  "expected": {
+    "shapeType": "Solid",
+    "isNull": false,
+    "isValid": true,
+    "solids": 1,
+    "volume": 408.4070449666731,
+    "boundingBox": { "min": [-5, -5, 0], "max": [5, 5, 10] }
+  }
+}

fixtures/freecad-golden/scenarios/part-cut-through-hole.json

@@ -0,0 +1,20 @@
+{
+  "schemaVersion": 1,
+  "id": "part-cut-through-hole",
+  "category": "Part",
+  "description": "20 mm cube cut by a centered radius 5 mm through cylinder",
+  "operation": {
+    "type": "cut",
+    "base": { "type": "box", "length": 20, "width": 20, "height": 20 },
+    "tool": { "type": "cylinder", "radius": 5, "height": 20, "angle": 360, "placement": { "translation": [10, 10, 0] } }
+  },
+  "tolerance": { "linear": 1e-7, "scalar": 1e-7 },
+  "expected": {
+    "shapeType": "Compound",
+    "isNull": false,
+    "isValid": true,
+    "solids": 1,
+    "volume": 6429.203673205104,
+    "boundingBox": { "min": [0, 0, 0], "max": [20, 20, 20] }
+  }
+}

fixtures/freecad-golden/scenarios/part-cylinder.json

@@ -0,0 +1,17 @@
+{
+  "schemaVersion": 1,
+  "id": "part-cylinder",
+  "category": "Part",
+  "description": "Radius 5 mm, height 20 mm cylinder on the positive Z axis",
+  "operation": { "type": "cylinder", "radius": 5, "height": 20, "angle": 360 },
+  "tolerance": { "linear": 1e-7, "scalar": 1e-7 },
+  "expected": {
+    "shapeType": "Solid",
+    "isNull": false,
+    "isValid": true,
+    "solids": 1,
+    "volume": 1570.7963267948965,
+    "area": 785.3981633974482,
+    "boundingBox": { "min": [-5, -5, 0], "max": [5, 5, 20] }
+  }
+}

fixtures/freecad-golden/scenarios/part-sphere.json

@@ -0,0 +1,17 @@
+{
+  "schemaVersion": 1,
+  "id": "part-sphere",
+  "category": "Part",
+  "description": "Radius 5 mm sphere centered at the origin",
+  "operation": { "type": "sphere", "radius": 5 },
+  "tolerance": { "linear": 1e-7, "scalar": 1e-7 },
+  "expected": {
+    "shapeType": "Solid",
+    "isNull": false,
+    "isValid": true,
+    "solids": 1,
+    "volume": 523.5987755982989,
+    "area": 314.1592653589793,
+    "boundingBox": { "min": [-5, -5, -5], "max": [5, 5, 5] }
+  }
+}