diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index 8db9c60..3c092ba 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -83,4 +83,9 @@ vtk_module_autoinit(TARGETS geopro_tests MODULES ${VTK_LIBRARIES})
 target_include_directories(geopro_tests PRIVATE ${CMAKE_SOURCE_DIR}/src/app)
 target_sources(geopro_tests PRIVATE app/test_chart_strategy_registry.cpp)
 
+# controller 层：DatasetDetailController 编排集成测试（QSignalSpy 验证 chartReady/loadFailed）。
+find_package(Qt6 COMPONENTS Test REQUIRED)
+target_sources(geopro_tests PRIVATE controller/test_dataset_detail_controller.cpp)
+target_link_libraries(geopro_tests PRIVATE geopro_controller Qt6::Test)
+
 add_subdirectory(spike)   # spike S3: banded contour 渲染验证
diff --git a/tests/controller/test_dataset_detail_controller.cpp b/tests/controller/test_dataset_detail_controller.cpp
new file mode 100644
index 0000000..1247677
--- /dev/null
+++ b/tests/controller/test_dataset_detail_controller.cpp
@@ -0,0 +1,30 @@
+#include <gtest/gtest.h>
+#include <QSignalSpy>
+#include "DatasetDetailController.hpp"
+#include "repo/IDatasetRepository.hpp"
+using namespace geopro;
+namespace {
+struct StubRepo : data::IDatasetRepository {
+    bool fail = false;
+    std::vector<data::GsNode> loadStructure() override { return {}; }
+    core::Grid loadGrid(const std::string&) override { if (fail) throw std::runtime_error("x"); core::Grid g(2,2); g.x={0,1}; g.y={0,1}; return g; }
+    core::ScatterField loadScatter(const std::string&) override { return {}; }
+    core::ColorScale loadColorScale(const std::string&) override { return {}; }
+    core::ColorScale loadScatterColorScale(const std::string&) override { return {}; }
+    std::vector<core::Anomaly> loadAnomalies(const std::string&) override { return {}; }
+};
+}
+TEST(DatasetDetailController, EmitsChartReadyOnSuccess) {
+    StubRepo repo;
+    controller::DatasetDetailController c(repo);
+    QSignalSpy spy(&c, &controller::DatasetDetailController::chartReady);
+    c.openDataset("ds1", "dd_inversion_data");
+    EXPECT_EQ(spy.count(), 1);
+}
+TEST(DatasetDetailController, EmitsLoadFailedOnThrow) {
+    StubRepo repo; repo.fail = true;
+    controller::DatasetDetailController c(repo);
+    QSignalSpy spy(&c, &controller::DatasetDetailController::loadFailed);
+    c.openDataset("ds1", "dd_inversion_data");
+    EXPECT_EQ(spy.count(), 1);
+}