Restructure desktop file tests, build single binary

tests/core/CMakeLists.txt

@@ -39,34 +39,5 @@ add_test(test_linuxdeploy test_linuxdeploy)
 add_dependencies(test_linuxdeploy simple_library simple_executable)
 
 
-add_executable(test_desktopfilereader test_desktopfilereader.cpp)
-target_link_libraries(test_desktopfilereader PRIVATE linuxdeploy_core_desktopfile gtest gtest_main)
-
-add_test(test_desktopfilereader test_desktopfilereader)
-
-
-add_executable(test_desktopfileentry test_desktopfileentry.cpp)
-target_link_libraries(test_desktopfileentry PRIVATE linuxdeploy_core_desktopfile gtest gtest_main)
-
-add_test(test_desktopfileentry test_desktopfileentry)
-
-
-add_executable(test_desktopfilewriter test_desktopfilewriter.cpp)
-target_link_libraries(test_desktopfilewriter PRIVATE linuxdeploy_core_desktopfile gtest gtest_main)
-
-add_test(test_desktopfilewriter test_desktopfilewriter)
-
-
-add_executable(test_desktopfile test_desktopfile.cpp)
-target_link_libraries(test_desktopfile PRIVATE linuxdeploy_core_desktopfile gtest gtest_main)
-set_property(TARGET test_desktopfile
-    PROPERTY COMPILE_FLAGS "-DDESKTOP_FILE_PATH=\\\"${CMAKE_CURRENT_SOURCE_DIR}/../data/simple_app.desktop\\\""
-)
-
-add_test(test_desktopfile test_desktopfile)
-
-
-add_executable(test_desktopfile_conformance test_desktopfile_conformance.cpp)
-target_link_libraries(test_desktopfile_conformance PRIVATE linuxdeploy_core_desktopfile gtest gtest_main)
-
-add_test(test_desktopfile_conformance test_desktopfile_conformance)
+# include desktop file tests
+add_subdirectory(desktopfile)

tests/core/desktopfile/CMakeLists.txt

@@ -0,0 +1,16 @@
+# build a single test binary
+add_executable(test_desktopfile
+    test_desktopfile.cpp
+    test_desktopfileentry.cpp
+    test_desktopfilereader.cpp
+    test_desktopfilewriter.cpp
+    test_desktopfile_conformance.cpp
+)
+
+target_link_libraries(test_desktopfile PRIVATE linuxdeploy_core_desktopfile gtest gtest_main)
+
+set_property(TARGET test_desktopfile
+    PROPERTY COMPILE_FLAGS "-DDESKTOP_FILE_PATH=\\\"${CMAKE_CURRENT_SOURCE_DIR}/../data/simple_app.desktop\\\""
+)
+
+add_test(test_desktopfile test_desktopfile)

tests/core/desktopfile/main.cpp

@@ -0,0 +1,2 @@
+#define
+#include <gtest/gtest.h>