Prevent unnecessary log messages in unit tests

tests/core/desktopfile/CMakeLists.txt

@@ -5,9 +5,10 @@ add_executable(test_desktopfile
     test_desktopfilereader.cpp
     test_desktopfilewriter.cpp
     test_desktopfile_conformance.cpp
+    main.cpp
 )
 
-target_link_libraries(test_desktopfile PRIVATE linuxdeploy_core_desktopfile gtest gtest_main)
+target_link_libraries(test_desktopfile PRIVATE linuxdeploy_core_desktopfile gtest)
 
 set_property(TARGET test_desktopfile
     PROPERTY COMPILE_FLAGS "-DDESKTOP_FILE_PATH=\\\"${TEST_DATA_DIR}/simple_app.desktop\\\""

tests/core/desktopfile/main.cpp

@@ -1,2 +1,15 @@
-#define
+// library headers
 #include <gtest/gtest.h>
+
+// local headers
+#include <linuxdeploy/core/log.h>
+
+using namespace linuxdeploy::core::log;
+
+int main(int argc, char** argv) {
+    // set loglevel to prevent unnecessary log messages
+    ldLog::setVerbosity(LD_ERROR);
+
+    ::testing::InitGoogleTest(&argc, argv);
+    return RUN_ALL_TESTS();
+}