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ATF-CHECK(1)		     General Commands Manual		    ATF-CHECK(1)

NAME
     atf-check -- executes a command and analyzes its results

SYNOPSIS
     atf-check [-s qual:value] [-o action:arg ...] [-e action:arg ...] [-x]
	       command

DESCRIPTION
     atf-check executes a given command and analyzes its results, including exit
     code, stdout and stderr.

     Test cases must use atf-sh(3)'s atf_check builtin function instead of call-
     ing this utility directly.

     In the first synopsis form, atf-check will execute the provided command and
     apply  checks  specified by arguments.  By default it will act as if it was
     run with -s exit:0 -o empty -e empty.  Multiple checks for the same  output
     channel  are allowed and, if specified, their results will be combined as a
     logical and (meaning that the output must match all the provided checks).

     In the second synopsis form, atf-check will  print  information  about  all
     supported options and their purpose.

     The following options are available:

     -s qual:value  Analyzes termination status.  Must be one of:
		    exit:<value>    checks  that  the program exited cleanly and
				    that its exit status is equal to value.  The
				    exit code  can  be	omitted  altogether,  in
				    which case any clean exit is accepted.
		    ignore	    ignores the exit check.
		    signal:<value>  checks that the program exited due to a sig-
				    nal  and  that the signal that terminated it
				    is value.  The signal can be specified  both
				    as	a number or as a name, or it can also be
				    omitted altogether, in which case any signal
				    is accepted.

		    Most of these checkers can be prefixed by the `not-' string,
		    which effectively reverses the check.

     -o action:arg  Analyzes standard output.  Must be one of:
		    empty	    checks that stdout is empty
		    ignore	    ignores stdout
		    file:<path>     compares stdout with given file
		    inline:<value>  compares stdout with inline value
		    match:<regexp>  looks for a regular expression in stdout
		    save:<path>     saves stdout to given file

		    Most of these checkers can be prefixed by the `not-' string,
		    which effectively reverses the check.

     -e action:arg  Analyzes standard error (syntax identical to above)

     -x 	    Executes command as a shell command line, executing it  with
		    the system shell defined by ATF_SHELL.  You should avoid us-
		    ing  this  flag  if at all possible to prevent shell quoting
		    issues.

     -r timeout[:interval]
		    Repeats failed checks until the  timeout  (in  seconds)  ex-
		    pires.   If  unspecified, the default interval (in millisec-
		    onds) is 50 ms.  This can be used to wait  for  an	expected
		    update to the contents of a file.

ENVIRONMENT
     ATF_SHELL	  Path	to  the  system shell to be used when the -x is given to
		  run commands.

EXIT STATUS
     atf-check exits 0 on success, and other (unspecified) value on failure.

EXAMPLES
     The following are sample invocations from within a test case.  Note that we
     use the atf_check function  provided  by  atf-sh(3)  instead  of  executing
     atf-check directly:

	   # Exit code 0, nothing on stdout/stderr
	   atf_check true

	   # Typical usage if failure is expected
	   atf_check -s not-exit:0 false

	   # Checking stdout/stderr
	   echo foobar >expout
	   atf_check -o file:expout -e inline:"xx\tyy\n" \
	       -x 'echo foobar ; printf "xx\tyy\n" >&2'

	   # Checking for a crash
	   atf_check -s signal:sigsegv my_program

	   # Combined checks
	   atf_check -o match:foo -o not-match:bar echo foo baz

	   # Wait 5 seconds for a line to show up in a file
	   ( sleep 2 ; echo "testing 123" > $test_path ) &
	   atf-check -o ignore -e ignore -s exit:0 -r 5 \
	       grep "testing 123" $test_path

SEE ALSO
     atf-sh(1)

FreeBSD ports 15.quarterly	February 6, 2021		    ATF-CHECK(1)

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