test(z): add Qt smoke test for ngltools DTG functions; tidy CMake IF/ENDIF mismatches in nglwidgets and NGLLogger

Z/src/NGLLogger/CMakeLists.txt

@@ -47,6 +47,7 @@ IF(BUILD_TESTING AND TARGET NGLLogger AND Log4Qt_FOUND)
   ADD_TEST(NAME test_ngllogger COMMAND $<TARGET_FILE:test_ngllogger>)
 ELSE()
   MESSAGE(STATUS "Log4Qt not found; skipping test_ngllogger")
-ENDIF(BUILD_TESTING AND TARGET NGLLogger)
+ENDIF()
+
 
 CONFIGURE_FILE(${CMAKE_CURRENT_SOURCE_DIR}/log4cxx.props ${CMAKE_BINARY_DIR}/log4cxx.props COPYONLY)

Z/src/ngltools/CMakeLists.txt

@@ -23,6 +23,23 @@ NGL_TARGET_LINK_LIBRARIES(ngltools
   PUBLIC
     Qt5::Core
 )
+
+# Smoke test for ngltools DTG conversion utilities
+IF(BUILD_TESTING AND TARGET ngltools)
+  find_package(Qt6 COMPONENTS Test Core QUIET)
+  if (Qt6_FOUND)
+    set(_QTTEST_TARGET Qt6::Test)
+    set(_QTCORE_TARGET Qt6::Core)
+  else()
+    find_package(Qt5 COMPONENTS Test Core REQUIRED)
+    set(_QTTEST_TARGET Qt5::Test)
+    set(_QTCORE_TARGET Qt5::Core)
+  endif()
+
+  add_executable(ngltools_qt_smoke tests/NGLToolsQtSmokeTest.cpp)
+  target_link_libraries(ngltools_qt_smoke PRIVATE ngltools ${_QTTEST_TARGET} ${_QTCORE_TARGET})
+  add_test(NAME NGLToolsQtSmoke COMMAND ngltools_qt_smoke)
+ENDIF()
 NGL_TARGET_COMPILE_DEFINITIONS(ngltools PUBLIC BUILD_BASE_PATH="${CMAKE_BINARY_DIR}")
 NGL_TARGET_COMPILE_DEFINITIONS(ngltools PUBLIC INSTALL_PREFIX="${CMAKE_INSTALL_PREFIX}")
 

Z/src/ngltools/tests/NGLToolsQtSmokeTest.cpp

@@ -0,0 +1,24 @@
+#include <QObject>
+#include <QtTest>
+#include <QDateTime>
+
+#include "ngltools_dtg.h"
+
+class NGLToolsQtSmokeTest : public QObject
+{
+    Q_OBJECT
+private slots:
+    void testDTG()
+    {
+        QDateTime now = QDateTime::currentDateTimeUtc();
+        QString s = NGL::toString(now);
+        QVERIFY(!s.isEmpty());
+        bool ok = false;
+        QDateTime parsed = NGL::fromDTGString(s, &ok);
+        QVERIFY(ok);
+        QVERIFY(parsed.isValid());
+    }
+};
+
+QTEST_MAIN(NGLToolsQtSmokeTest)
+#include "NGLToolsQtSmokeTest.moc"

Z/src/nglwidgets/CMakeLists.txt

@@ -66,4 +66,4 @@ IF(BUILD_TESTING AND TARGET nglwidgets)
   ADD_EXECUTABLE(test_nglpdfwidget test_nglpdfwidget.cpp)
   TARGET_LINK_LIBRARIES(test_nglpdfwidget PRIVATE nglwidgets Qt6::Test Qt6::Widgets)
   ADD_TEST(NAME test_nglpdfwidget COMMAND $<TARGET_FILE:test_nglpdfwidget>)
-ENDIF(BUILD_TESTING)
+ENDIF()