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Man Pages


Manual Reference Pages  -  ATF-CHECK (1)

NAME

atf-check - executes a command and analyzes its results

CONTENTS

Synopsis
Description
Exit Status
Environment
Examples
See Also

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 calling 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 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:
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 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.

ENVIRONMENT

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

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" \ ’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-sh(1)
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