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Getting the exit code of the application began with the commands "cmd" and "start"

I have a console application. Interaction with this application is via TCP / IP.

I also have a test environment for it, which is basically a collection of BATCH scripts (... not my fault). What this test structure does for each test is basically this:

  • start /min "myapplication.exe" and wait for confirmation of the launch of the application.
  • send commands via TCP / IP to this application, receive its responses and check whether the timings and values ​​correspond to what is expected as a result of a particular test.

One of the problems that I am facing right now is that the application crashes due to some internal error. I would like to distinguish between failed tests and application failure. The only sign I have for this is the application exit code.

So, I tried the following:

start /min cmd /c "myapplication.exe || echo %errorLevel% > exitcode.txt"

and then in test cases,

if exist exitcode.txt (
    set /p exitcode=<exitcode.txt
    echo ERROR: myapplication.exe returned exitcode %exitcode%.
    goto error
) else (
    goto do_processing
)

but for some strange reason, the text file never appears, although sometimes I get a dialog about the application crashing, and although I force it to do with the known non-zero exit code. The test passes through do_processingand (of course) leads to failure.

EDIT When I started

start /min cmd /c "nonsense || echo %errorLevel% > test.txt"

I sometimes get a text file containing line 9009, but in other cases this text file contains a line 0or sometimes 1, ... What is ...?!

EDIT2

cmd /k "nonsense || echo %errorLevel%"

( /k), 0 , echo %errorlevel%, 1....

, , ...

, ?

+4
3

%errorLevel% , , CMD/C , , ( 0).

fooobar.com/questions/4522/.... , .

, , exe.

:

1) CALL, .

. , CMD/C, , . .

(cmd.exe escape) . , , . , , . , . , CALL round , .

start /min cmd /c "myapplication.exe || call echo %^errorLevel% > exitcode.txt"

2)

!errorlevel! %errorLevel%. , . script setlocal enableDelayedExpansion, . cmd.exe /v:on.

start /min cmd /v:on /c "myapplication.exe || echo !errorLevel! > exitcode.txt"
+8

, call start, . call script , start , script.

+1

& ||

start myapplication.exe ^& echo %errorLevel% ^> exitcode.txt

^ - escape char, , , .

. , -.

+1

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