test(gui): add unit tests for OriginManager and LocalFileOrigin

Add 20 GTest cases covering the Kindred Origin system:

- LocalFileOriginTest: identity methods and capability flags
- OriginManagerTest: registration lifecycle, current origin
  selection, signal emissions, and fallback behavior
- OriginManagerDocTest: document ownership via SiloItemId
  property detection, origin association, and null safety

Uses MockOrigin stub for testing OriginManager without real
PLM backends.

tests/src/Gui/CMakeLists.txt

@@ -4,6 +4,7 @@
 add_executable(Gui_tests_run
         Assistant.cpp
         Camera.cpp
+        OriginManager.cpp
         StyleParameters/StyleParametersApplicationTest.cpp
         StyleParameters/ParserTest.cpp
         StyleParameters/ParameterManagerTest.cpp

tests/src/Gui/OriginManager.cpp

@@ -0,0 +1,382 @@
+// SPDX-License-Identifier: LGPL-2.1-or-later
+
+#include <gtest/gtest.h>
+
+#include <string>
+
+#include <App/Application.h>
+#include <App/Document.h>
+#include <App/DocumentObject.h>
+#include <App/PropertyStandard.h>
+#include <Gui/FileOrigin.h>
+#include <Gui/OriginManager.h>
+
+#include <src/App/InitApplication.h>
+
+
+namespace
+{
+
+/**
+ * Minimal FileOrigin implementation for testing OriginManager.
+ * All document operations are stubs -- we only need identity,
+ * capability, and ownership methods to test the manager.
+ */
+class MockOrigin : public Gui::FileOrigin
+{
+public:
+    explicit MockOrigin(std::string originId,
+                        Gui::OriginType originType = Gui::OriginType::PLM,
+                        bool ownsAll = false)
+        : _id(std::move(originId))
+        , _type(originType)
+        , _ownsAll(ownsAll)
+    {}
+
+    // Identity
+    std::string id() const override { return _id; }
+    std::string name() const override { return _id + " Name"; }
+    std::string nickname() const override { return _id; }
+    QIcon icon() const override { return {}; }
+    Gui::OriginType type() const override { return _type; }
+
+    // Characteristics
+    bool tracksExternally() const override { return _type == Gui::OriginType::PLM; }
+    bool requiresAuthentication() const override { return _type == Gui::OriginType::PLM; }
+
+    // Capabilities
+    bool supportsRevisions() const override { return _supportsRevisions; }
+    bool supportsBOM() const override { return _supportsBOM; }
+    bool supportsPartNumbers() const override { return _supportsPartNumbers; }
+
+    // Document identity
+    std::string documentIdentity(App::Document* /*doc*/) const override { return {}; }
+    std::string documentDisplayId(App::Document* /*doc*/) const override { return {}; }
+
+    bool ownsDocument(App::Document* doc) const override
+    {
+        if (!doc) {
+            return false;
+        }
+        return _ownsAll;
+    }
+
+    // Document operations (stubs)
+    App::Document* newDocument(const std::string& /*name*/) override { return nullptr; }
+    App::Document* openDocument(const std::string& /*identity*/) override { return nullptr; }
+    App::Document* openDocumentInteractive() override { return nullptr; }
+    bool saveDocument(App::Document* /*doc*/) override { return false; }
+    bool saveDocumentAs(App::Document* /*doc*/, const std::string& /*id*/) override
+    {
+        return false;
+    }
+    bool saveDocumentAsInteractive(App::Document* /*doc*/) override { return false; }
+
+    // Test controls
+    bool _supportsRevisions = true;
+    bool _supportsBOM = true;
+    bool _supportsPartNumbers = true;
+
+private:
+    std::string _id;
+    Gui::OriginType _type;
+    bool _ownsAll;
+};
+
+}  // namespace
+
+
+// =========================================================================
+// LocalFileOrigin identity tests
+// =========================================================================
+
+class LocalFileOriginTest : public ::testing::Test
+{
+protected:
+    static void SetUpTestSuite()
+    {
+        tests::initApplication();
+    }
+
+    void SetUp() override
+    {
+        _origin = std::make_unique<Gui::LocalFileOrigin>();
+    }
+
+    Gui::LocalFileOrigin* origin() { return _origin.get(); }
+
+private:
+    std::unique_ptr<Gui::LocalFileOrigin> _origin;
+};
+
+TEST_F(LocalFileOriginTest, LocalOriginId)
+{
+    EXPECT_EQ(origin()->id(), "local");
+}
+
+TEST_F(LocalFileOriginTest, LocalOriginName)
+{
+    EXPECT_EQ(origin()->name(), "Local Files");
+}
+
+TEST_F(LocalFileOriginTest, LocalOriginNickname)
+{
+    EXPECT_EQ(origin()->nickname(), "Local");
+}
+
+TEST_F(LocalFileOriginTest, LocalOriginType)
+{
+    EXPECT_EQ(origin()->type(), Gui::OriginType::Local);
+}
+
+TEST_F(LocalFileOriginTest, LocalOriginCapabilities)
+{
+    EXPECT_FALSE(origin()->tracksExternally());
+    EXPECT_FALSE(origin()->requiresAuthentication());
+    EXPECT_FALSE(origin()->supportsRevisions());
+    EXPECT_FALSE(origin()->supportsBOM());
+    EXPECT_FALSE(origin()->supportsPartNumbers());
+    EXPECT_FALSE(origin()->supportsAssemblies());
+}
+
+
+// =========================================================================
+// OriginManager tests
+// =========================================================================
+
+class OriginManagerTest : public ::testing::Test
+{
+protected:
+    static void SetUpTestSuite()
+    {
+        tests::initApplication();
+    }
+
+    void SetUp() override
+    {
+        // Ensure clean singleton state for each test
+        Gui::OriginManager::destruct();
+        _mgr = Gui::OriginManager::instance();
+    }
+
+    void TearDown() override
+    {
+        Gui::OriginManager::destruct();
+    }
+
+    Gui::OriginManager* mgr() { return _mgr; }
+
+private:
+    Gui::OriginManager* _mgr = nullptr;
+};
+
+// --- Registration ---
+
+TEST_F(OriginManagerTest, LocalOriginAlwaysPresent)
+{
+    auto* local = mgr()->getOrigin("local");
+    ASSERT_NE(local, nullptr);
+    EXPECT_EQ(local->id(), "local");
+}
+
+TEST_F(OriginManagerTest, RegisterCustomOrigin)
+{
+    auto* raw = new MockOrigin("test-plm");
+    EXPECT_TRUE(mgr()->registerOrigin(raw));
+    EXPECT_EQ(mgr()->getOrigin("test-plm"), raw);
+}
+
+TEST_F(OriginManagerTest, RejectDuplicateId)
+{
+    mgr()->registerOrigin(new MockOrigin("dup"));
+    // Second registration with same ID should fail
+    EXPECT_FALSE(mgr()->registerOrigin(new MockOrigin("dup")));
+}
+
+TEST_F(OriginManagerTest, RejectNullOrigin)
+{
+    EXPECT_FALSE(mgr()->registerOrigin(nullptr));
+}
+
+TEST_F(OriginManagerTest, OriginIdsIncludesAll)
+{
+    mgr()->registerOrigin(new MockOrigin("alpha"));
+    mgr()->registerOrigin(new MockOrigin("beta"));
+
+    auto ids = mgr()->originIds();
+    EXPECT_EQ(ids.size(), 3u);  // local + alpha + beta
+
+    auto has = [&](const std::string& id) {
+        return std::find(ids.begin(), ids.end(), id) != ids.end();
+    };
+    EXPECT_TRUE(has("local"));
+    EXPECT_TRUE(has("alpha"));
+    EXPECT_TRUE(has("beta"));
+}
+
+// --- Unregistration ---
+
+TEST_F(OriginManagerTest, UnregisterCustomOrigin)
+{
+    mgr()->registerOrigin(new MockOrigin("removable"));
+    EXPECT_TRUE(mgr()->unregisterOrigin("removable"));
+    EXPECT_EQ(mgr()->getOrigin("removable"), nullptr);
+}
+
+TEST_F(OriginManagerTest, CannotUnregisterLocal)
+{
+    EXPECT_FALSE(mgr()->unregisterOrigin("local"));
+    EXPECT_NE(mgr()->getOrigin("local"), nullptr);
+}
+
+TEST_F(OriginManagerTest, UnregisterCurrentSwitchesToLocal)
+{
+    mgr()->registerOrigin(new MockOrigin("ephemeral"));
+    mgr()->setCurrentOrigin("ephemeral");
+    EXPECT_EQ(mgr()->currentOriginId(), "ephemeral");
+
+    mgr()->unregisterOrigin("ephemeral");
+    EXPECT_EQ(mgr()->currentOriginId(), "local");
+}
+
+// --- Current origin selection ---
+
+TEST_F(OriginManagerTest, DefaultCurrentIsLocal)
+{
+    EXPECT_EQ(mgr()->currentOriginId(), "local");
+    EXPECT_NE(mgr()->currentOrigin(), nullptr);
+}
+
+TEST_F(OriginManagerTest, SetCurrentOrigin)
+{
+    mgr()->registerOrigin(new MockOrigin("plm1"));
+
+    std::string notified;
+    auto conn = mgr()->signalCurrentOriginChanged.connect([&](const std::string& id) {
+        notified = id;
+    });
+
+    EXPECT_TRUE(mgr()->setCurrentOrigin("plm1"));
+    EXPECT_EQ(mgr()->currentOriginId(), "plm1");
+    EXPECT_EQ(notified, "plm1");
+}
+
+TEST_F(OriginManagerTest, SetCurrentRejectsUnknown)
+{
+    EXPECT_FALSE(mgr()->setCurrentOrigin("nonexistent"));
+    EXPECT_EQ(mgr()->currentOriginId(), "local");
+}
+
+TEST_F(OriginManagerTest, SetCurrentSameIdNoSignal)
+{
+    int signalCount = 0;
+    auto conn = mgr()->signalCurrentOriginChanged.connect([&](const std::string&) {
+        signalCount++;
+    });
+
+    mgr()->setCurrentOrigin("local");  // already current
+    EXPECT_EQ(signalCount, 0);
+}
+
+// --- Document ownership ---
+
+class OriginManagerDocTest : public ::testing::Test
+{
+protected:
+    static void SetUpTestSuite()
+    {
+        tests::initApplication();
+    }
+
+    void SetUp() override
+    {
+        Gui::OriginManager::destruct();
+        _mgr = Gui::OriginManager::instance();
+        _docName = App::GetApplication().getUniqueDocumentName("test");
+        _doc = App::GetApplication().newDocument(_docName.c_str(), "testUser");
+    }
+
+    void TearDown() override
+    {
+        App::GetApplication().closeDocument(_docName.c_str());
+        Gui::OriginManager::destruct();
+    }
+
+    Gui::OriginManager* mgr() { return _mgr; }
+    App::Document* doc() { return _doc; }
+
+private:
+    Gui::OriginManager* _mgr = nullptr;
+    std::string _docName;
+    App::Document* _doc = nullptr;
+};
+
+TEST_F(OriginManagerDocTest, LocalOwnsPlainDocument)
+{
+    // A document with no SiloItemId property should be owned by local
+    auto* local = mgr()->getOrigin("local");
+    ASSERT_NE(local, nullptr);
+    EXPECT_TRUE(local->ownsDocument(doc()));
+}
+
+TEST_F(OriginManagerDocTest, LocalDisownsTrackedDocument)
+{
+    // Add an object with a SiloItemId property -- local should reject ownership
+    auto* obj = doc()->addObject("App::FeaturePython", "TrackedPart");
+    ASSERT_NE(obj, nullptr);
+    obj->addDynamicProperty("App::PropertyString", "SiloItemId");
+    auto* prop = dynamic_cast<App::PropertyString*>(obj->getPropertyByName("SiloItemId"));
+    ASSERT_NE(prop, nullptr);
+    prop->setValue("some-uuid");
+
+    auto* local = mgr()->getOrigin("local");
+    EXPECT_FALSE(local->ownsDocument(doc()));
+}
+
+TEST_F(OriginManagerDocTest, FindOwningOriginPrefersNonLocal)
+{
+    // Register a PLM mock that claims ownership of everything
+    auto* plm = new MockOrigin("test-plm", Gui::OriginType::PLM, /*ownsAll=*/true);
+    mgr()->registerOrigin(plm);
+
+    auto* owner = mgr()->findOwningOrigin(doc());
+    ASSERT_NE(owner, nullptr);
+    EXPECT_EQ(owner->id(), "test-plm");
+}
+
+TEST_F(OriginManagerDocTest, FindOwningOriginFallsBackToLocal)
+{
+    // No PLM origins registered -- should fall back to local
+    auto* owner = mgr()->findOwningOrigin(doc());
+    ASSERT_NE(owner, nullptr);
+    EXPECT_EQ(owner->id(), "local");
+}
+
+TEST_F(OriginManagerDocTest, OriginForNewDocumentReturnsCurrent)
+{
+    mgr()->registerOrigin(new MockOrigin("plm2"));
+    mgr()->setCurrentOrigin("plm2");
+
+    auto* origin = mgr()->originForNewDocument();
+    ASSERT_NE(origin, nullptr);
+    EXPECT_EQ(origin->id(), "plm2");
+}
+
+TEST_F(OriginManagerDocTest, SetAndClearDocumentOrigin)
+{
+    auto* local = mgr()->getOrigin("local");
+    mgr()->setDocumentOrigin(doc(), local);
+    EXPECT_EQ(mgr()->originForDocument(doc()), local);
+
+    mgr()->clearDocumentOrigin(doc());
+    // After clearing, originForDocument falls back to ownership detection
+    auto* resolved = mgr()->originForDocument(doc());
+    ASSERT_NE(resolved, nullptr);
+    EXPECT_EQ(resolved->id(), "local");
+}
+
+TEST_F(OriginManagerDocTest, NullDocumentHandling)
+{
+    EXPECT_EQ(mgr()->findOwningOrigin(nullptr), nullptr);
+    EXPECT_EQ(mgr()->originForDocument(nullptr), nullptr);
+}