Fix Unit Tests CI job that silently ran zero tests (#14175)

Fix Unit Tests CI job silently running zero tests

scripts/run_unit_tests.sh selected tests with `ctest -L "Http|PlaceholderParser"`,
but catch_discover_tests() was called without ADD_TAGS_AS_LABELS, so Catch2 tags
were never registered as CTest labels. The -L filter matched nothing and the job
passed green while running no tests ("No tests were found!!!"). Tests have not run
in CI since PR #11485 added that -L line (2025-12-23).

Register tags as labels via a shared orcaslicer_discover_tests() wrapper in
tests/CMakeLists.txt (passing ADD_TAGS_AS_LABELS), routed through all five test
suites. Restore full-suite execution by replacing the narrow -L selection with a
`-LE NotWorking` exclusion, so all reliable tests gate PRs again (the suite ran in
full before #11485).

Tag the two OrcaCloudServiceAgent display-name tests [NotWorking]: their
constructor reaches wxStandardPaths::Get().GetUserDataDir(), which dereferences
the null wxTheApp in the headless test binary and segfaults on every platform.
Excluded until the agent can be constructed without the wx app context.

CI now runs 151 tests (was 0) and passes.

scripts/run_unit_tests.sh

@@ -9,4 +9,6 @@ ROOT_DIR="$(dirname "$0")/.."
 
 cd "${ROOT_DIR}" || exit 1
 
-ctest --test-dir build/tests -L "Http|PlaceholderParser" --output-junit "$(pwd)/ctest_results.xml" --output-on-failure -j
+# Run the whole suite, excluding tests tagged [NotWorking].
+# --no-tests=error fails the job if the filter matches nothing (instead of passing green).
+ctest --test-dir build/tests -LE "NotWorking" --no-tests=error --output-junit "$(pwd)/ctest_results.xml" --output-on-failure -j

tests/CMakeLists.txt

@@ -47,6 +47,11 @@ function(orcaslicer_copy_test_dlls)
     endforeach()
 endfunction()
 
+# Register Catch2 tags as CTest labels so `ctest -L`/`-LE` can filter by tag.
+function(orcaslicer_discover_tests TARGET)
+    catch_discover_tests(${TARGET} ADD_TAGS_AS_LABELS)
+endfunction()
+
 add_subdirectory(libnest2d)
 add_subdirectory(libslic3r)
 add_subdirectory(slic3rutils)

tests/fff_print/CMakeLists.txt

@@ -21,4 +21,4 @@ set_property(TARGET ${_TEST_NAME}_tests PROPERTY FOLDER "tests")
 
 orcaslicer_copy_test_dlls()
 
-catch_discover_tests(${_TEST_NAME}_tests)
+orcaslicer_discover_tests(${_TEST_NAME}_tests)

tests/libnest2d/CMakeLists.txt

@@ -10,4 +10,4 @@ set_property(TARGET ${_TEST_NAME}_tests PROPERTY FOLDER "tests")
 
 orcaslicer_copy_test_dlls()
 
-catch_discover_tests(${_TEST_NAME}_tests)
+orcaslicer_discover_tests(${_TEST_NAME}_tests)

tests/libslic3r/CMakeLists.txt

@@ -38,4 +38,4 @@ set_property(TARGET ${_TEST_NAME}_tests PROPERTY FOLDER "tests")
 
 orcaslicer_copy_test_dlls()
 
-catch_discover_tests(${_TEST_NAME}_tests)
+orcaslicer_discover_tests(${_TEST_NAME}_tests)

tests/sla_print/CMakeLists.txt

@@ -9,4 +9,4 @@ set_property(TARGET ${_TEST_NAME}_tests PROPERTY FOLDER "tests")
 
 orcaslicer_copy_test_dlls()
 
-catch_discover_tests(${_TEST_NAME}_tests)
+orcaslicer_discover_tests(${_TEST_NAME}_tests)

tests/slic3rutils/CMakeLists.txt

@@ -12,4 +12,4 @@ set_property(TARGET ${_TEST_NAME}_tests PROPERTY FOLDER "tests")
 
 orcaslicer_copy_test_dlls()
 
-catch_discover_tests(${_TEST_NAME}_tests)
+orcaslicer_discover_tests(${_TEST_NAME}_tests)

tests/slic3rutils/slic3rutils_tests_main.cpp

@@ -53,7 +53,8 @@ TEST_CASE("Check SSL certificates paths", "[Http][NotWorking]") {
     REQUIRE(status == 200);
 }
 
-TEST_CASE("Orca cloud flat session resolves display name consistently", "[OrcaCloudServiceAgent]")
+// [NotWorking]: OrcaCloudServiceAgent ctor segfaults headless (wxStandardPaths::Get() -> null wxTheApp).
+TEST_CASE("Orca cloud flat session resolves display name consistently", "[OrcaCloudServiceAgent][NotWorking]")
 {
     CHECK(resolved_display_name(flat_session_json({
         {"username", "orca_username"},
@@ -81,7 +82,8 @@ TEST_CASE("Orca cloud flat session resolves display name consistently", "[OrcaCl
     })) == "orca_username");
 }
 
-TEST_CASE("Orca cloud nested session resolves display name consistently", "[OrcaCloudServiceAgent]")
+// [NotWorking]: see flat-session test above.
+TEST_CASE("Orca cloud nested session resolves display name consistently", "[OrcaCloudServiceAgent][NotWorking]")
 {
     CHECK(resolved_display_name(nested_session_json({
         {"username", "orca_username"},