diff --git a/autotest/File/Etalon.log b/autotest/File/Etalon.log
new file mode 100644
index 000000000..9bd729cb1
--- /dev/null
+++ b/autotest/File/Etalon.log
@@ -0,0 +1,18 @@
+* C:\upp\out\autotest\CLANGx64.Debug.Debug_Full\File.exe 07.09.2023 08:18:10, user: cxl
+
+(bool)out = true
+(bool)out.IsError() = false
+(bool)out2 = false
+(bool)out2.IsError() = true
+--- out2 closed
+(bool)out = true
+(bool)out.IsError() = false
+(bool)out2 = false
+(bool)out2.IsError() = true
+--- out1 closed
+(bool)out = false
+(bool)out.IsError() = false
+(bool)out2 = false
+(bool)out2.IsError() = true
+(bool)in = false
+in.IsError() = true
diff --git a/autotest/File/File.cpp b/autotest/File/File.cpp
index 303f979a2..4de456929 100644
--- a/autotest/File/File.cpp
+++ b/autotest/File/File.cpp
@@ -4,15 +4,32 @@ using namespace Upp;
 
 CONSOLE_APP_MAIN
 {
+	StdLogSetup(LOG_COUT|LOG_FILE);
+
 	String p = GetExeDirFile("test.txt");
 	FileOut out(p);
+	FileOut out2(p);
+	DDUMP((bool)out);
+	DDUMP((bool)out.IsError());
+	DDUMP((bool)out2);
+	DDUMP((bool)out2.IsError());
+	out2.Close();
+	DLOG("--- out2 closed");
+	DDUMP((bool)out);
+	DDUMP((bool)out.IsError());
+	DDUMP((bool)out2);
+	DDUMP((bool)out2.IsError());
+	
+	out.Close();
+	DLOG("--- out1 closed");
 	DDUMP((bool)out);
 	DDUMP((bool)out.IsError());
-	FileOut out2(p);
 	DDUMP((bool)out2);
 	DDUMP((bool)out2.IsError());
 	
 	FileIn in(GetExeDirFile("does_not_exist.file123"));
 	DDUMP((bool)in);
 	DDUMP(in.IsError());
+	
+	CheckLogEtalon();
 }
diff --git a/autotest/File/File.upp b/autotest/File/File.upp
index 66f2a842a..71db1e756 100644
--- a/autotest/File/File.upp
+++ b/autotest/File/File.upp
@@ -2,6 +2,7 @@ uses
 	Core;
 
 file
+	Etalon.log,
 	File.cpp;
 
 mainconfig