Renamed test filenames

tests/CMakeLists.txt

@@ -3,9 +3,9 @@ project(spdlog-utests CXX)
 find_package(Threads REQUIRED)
 
 set(SPDLOG_UTESTS_SOURCES
-    errors.cpp
+    test_errors.cpp
     file_helper.cpp
-    file_log.cpp
+    test_file_logging.cpp
     test_misc.cpp
     test_pattern_formatter.cpp
     test_async.cpp