Added header-dependency tests.

tests/CMakeLists.txt

@@ -0,0 +1,19 @@
+#
+# Tests
+#
+
+enable_testing()
+
+# Build Catch unit tests
+add_library(catch INTERFACE)
+target_include_directories(catch INTERFACE ${CMAKE_CURRENT_SOURCE_DIR})
+
+file(GLOB catch_tests LIST_DIRECTORIES false RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} *.cpp)
+add_executable(catch_tests ${catch_tests})
+target_link_libraries(catch_tests spdlog)
+add_test(NAME catch_tests COMMAND catch_tests)
+file(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/logs")
+
+# Ensure headers include their own dependencies
+add_subdirectory(header_dependencies)
+