atf-check man page

atf-check — executes a command and analyzes its results


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

atf-check -h


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

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:

Shows a short summary of all available options and their purpose.
-s qual:value
Analyzes termination status. Must be one of:
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.
ignores the exit check.
checks that the program exited due to a signal 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:
checks that stdout is empty
ignores stdout
compares stdout with given file
compares stdout with inline value
looks for a regular expression in stdout
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)
Executes command as a shell command line, executing it with the system shell defined by ATF_SHELL in atf-config(1). You should avoid using this flag if at all possible to prevent shell quoting issues.

Exit Status

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


# 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" \ 
    '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

See Also

atf-config(1), atf(7)

Referenced By


Explore man page connections for atf-check(1).

June 27, 2010