https://forge.codesys.com/lib/counit/tickets/You searched for assigned_to:"i-campbell"enTue, 10 Aug 2021 01:56:43 -0000https://forge.codesys.com/lib/counit/tickets/39/**Test version: **v1.0.9.9 RC2 **Problem: **Using Assert_Equals() with STRING(1024) Causes PLC to crash. The problem is, the AssertEquals uses pointers to write to memory, and will happily copy an entire 1024 character string over the top of a 255 character string See screenshot for the line which causes the memory overwrite **Steps to repeat: ** With the Verifier_MultiCycle_Examplev1.0.9.9.project, change the following POU: Test/FB_AnyPrimitiveTypes.Test_ANY_STRING_Equals to ~~~ST METHOD PRIVATE Test_ANY_STRING_Equals VAR a : STRING(1024) := 'WCPRZC2VAB 01SQ7HD707 68UUBLAN0H AI2HPVN8YO NQ5T9PIV9M DAQYA96Y8T'; b : STRING(1024) := 'WCPRZC2VAB 01SQ7HD707 68UUBLAN0H AI2HPVN8YO NQ5T9PIV9M DAQYA96Y8T'; END_VAR ~~~ ~~~ST TEST('Test_ANY_STRING_Equals'); AssertEquals(Expected := a, Actual := b, Message := 'Values differ'); TEST_FINISHED(); ~~~ Download to the PLC and run ==> IS: PLC stops unexpectedly, no logs written, PLC won't start again ==> SHOULD: Either allow to compare any length strings, OR don't allow them and print an error message rather than crashing the PLC Note: To recover, delete the application from the PLC, for example at C:\ProgramData\CODESYS\CODESYSControlWinV3x64\AAAA\PlcLogic\Application\i-campbellTue, 10 Aug 2021 01:56:43 -0000https://forge.codesys.com/lib/counit/tickets/39/