feat(v3.9): parallel OpenMP boolean + assembly instancing + update notifier

tests/brep/CMakeLists.txt

@@ -13,3 +13,4 @@ add_vde_test(test_assembly_constraints)
 add_vde_test(test_trimmed_surface)
 add_vde_test(test_brep_heal)
 add_vde_test(test_brep_drawing)
+add_vde_test(test_assembly_instance)

tests/brep/test_assembly_instance.cpp

@@ -0,0 +1,87 @@
+#include <gtest/gtest.h>
+#include "vde/brep/assembly_instance.h"
+#include "vde/brep/modeling.h"
+
+using namespace vde::brep;
+
+TEST(AssemblyInstancer, IdenticalBoxesReturnSameID) {
+    AssemblyInstancer instancer;
+
+    auto box1 = make_box(10, 5, 3);
+    auto box2 = make_box(10, 5, 3);
+
+    int id1 = instancer.register_instance("bolt", box1);
+    int id2 = instancer.register_instance("bolt", box2);
+
+    EXPECT_EQ(id1, id2);
+    EXPECT_EQ(instancer.unique_count(), 1);
+}
+
+TEST(AssemblyInstancer, DifferentBoxesReturnDifferentIDs) {
+    AssemblyInstancer instancer;
+
+    auto box1 = make_box(10, 5, 3);
+    auto box2 = make_box(5, 5, 5);
+
+    int id1 = instancer.register_instance("bolt", box1);
+    int id2 = instancer.register_instance("bolt", box2);
+
+    EXPECT_NE(id1, id2);
+    EXPECT_EQ(instancer.unique_count(), 2);
+}
+
+TEST(AssemblyInstancer, DifferentNamesYieldDifferentIDs) {
+    AssemblyInstancer instancer;
+
+    auto box = make_box(10, 5, 3);
+
+    int id1 = instancer.register_instance("bolt", box);
+    int id2 = instancer.register_instance("screw", box);
+
+    EXPECT_NE(id1, id2);
+    EXPECT_EQ(instancer.unique_count(), 2);
+}
+
+TEST(AssemblyInstancer, PlaceInstancesCountsCorrectly) {
+    AssemblyInstancer instancer;
+    auto box = make_box(2, 2, 2);
+    int id = instancer.register_instance("cell", box);
+
+    Assembly assy("grid");
+
+    for (int i = 0; i < 100; ++i) {
+        auto xform = Transform3D::Translation(i % 10, i / 10, 0);
+        instancer.place_instance(assy, nullptr, id, xform);
+    }
+
+    EXPECT_EQ(instancer.total_placed(), 100);
+    EXPECT_EQ(instancer.unique_count(), 1);
+    EXPECT_EQ(assy.part_count(), 100);
+}
+
+TEST(AssemblyInstancer, PlaceInstanceWithParent) {
+    AssemblyInstancer instancer;
+    auto box = make_box(1, 1, 1);
+    int id = instancer.register_instance("leaf", box);
+
+    Assembly assy("tree");
+
+    // Place a child under a subassembly
+    auto* sub = assy.root.add_subassembly("sub", Transform3D::Identity());
+    auto xform = Transform3D::Translation(5, 0, 0);
+    EXPECT_NO_THROW(instancer.place_instance(assy, sub, id, xform));
+
+    EXPECT_EQ(instancer.total_placed(), 1);
+    EXPECT_EQ(assy.root.children.size(), 1);
+    EXPECT_EQ(assy.root.children[0]->name, "sub");
+    EXPECT_EQ(assy.root.children[0]->children.size(), 1);
+}
+
+TEST(AssemblyInstancer, InvalidInstanceIdNoOp) {
+    AssemblyInstancer instancer;
+    Assembly assy("empty");
+
+    EXPECT_NO_THROW(instancer.place_instance(assy, nullptr, -1, Transform3D::Identity()));
+    EXPECT_NO_THROW(instancer.place_instance(assy, nullptr, 999, Transform3D::Identity()));
+    EXPECT_EQ(instancer.total_placed(), 0);
+}