xref: /freebsd/contrib/atf/atf-sh/atf-check.1 (revision c697fb7f)
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25.Dd March 6, 2017
26.Dt ATF-CHECK 1
27.Os
28.Sh NAME
29.Nm atf-check
30.Nd executes a command and analyzes its results
31.Sh SYNOPSIS
32.Nm
33.Op Fl s Ar qual:value
34.Op Fl o Ar action:arg ...
35.Op Fl e Ar action:arg ...
36.Op Fl x
37.Ar command
38.Sh DESCRIPTION
39.Nm
40executes a given command and analyzes its results, including
41exit code, stdout and stderr.
42.Pp
43.Bf Em
44Test cases must use
45.Xr atf-sh 3 Ns ' Ns s
46.Nm atf_check
47builtin function instead of calling this utility directly.
48.Ef
49.Pp
50In the first synopsis form,
51.Nm
52will execute the provided command and apply checks specified
53by arguments.
54By default it will act as if it was run with
55.Fl s
56.Ar exit:0
57.Fl o
58.Ar empty
59.Fl e
60.Ar empty .
61Multiple checks for the same output channel are allowed and, if specified,
62their results will be combined as a logical and (meaning that the output must
63match all the provided checks).
64.Pp
65In the second synopsis form,
66.Nm
67will print information about all supported options and their purpose.
68.Pp
69The following options are available:
70.Bl -tag  -width XqualXvalueXX
71.It Fl s Ar qual:value
72Analyzes termination status.
73Must be one of:
74.Bl -tag -width signal:<value> -compact
75.It Ar exit:<value>
76checks that the program exited cleanly and that its exit status is equal to
77.Va value .
78The exit code can be omitted altogether, in which case any clean exit is
79accepted.
80.It Ar ignore
81ignores the exit check.
82.It Ar signal:<value>
83checks that the program exited due to a signal and that the signal that
84terminated it is
85.Va value .
86The signal can be specified both as a number or as a name, or it can also
87be omitted altogether, in which case any signal is accepted.
88.El
89.Pp
90Most of these checkers can be prefixed by the
91.Sq not-
92string, which effectively reverses the check.
93.It Fl o Ar action:arg
94Analyzes standard output.
95Must be one of:
96.Bl -tag -width inline:<value> -compact
97.It Ar empty
98checks that stdout is empty
99.It Ar ignore
100ignores stdout
101.It Ar file:<path>
102compares stdout with given file
103.It Ar inline:<value>
104compares stdout with inline value
105.It Ar match:<regexp>
106looks for a regular expression in stdout
107.It Ar save:<path>
108saves stdout to given file
109.El
110.Pp
111Most of these checkers can be prefixed by the
112.Sq not-
113string, which effectively reverses the check.
114.It Fl e Ar action:arg
115Analyzes standard error (syntax identical to above)
116.It Fl x
117Executes
118.Ar command
119as a shell command line, executing it with the system shell defined by
120.Va ATF_SHELL .
121You should avoid using this flag if at all possible to prevent shell quoting
122issues.
123.El
124.Sh ENVIRONMENT
125.Bl -tag -width ATFXSHELLXX -compact
126.It Va ATF_SHELL
127Path to the system shell to be used when the
128.Fl x
129is given to run commands.
130.El
131.Sh EXIT STATUS
132.Nm
133exits 0 on success, and other (unspecified) value on failure.
134.Sh EXAMPLES
135The following are sample invocations from within a test case.
136Note that we use the
137.Nm atf_check
138function provided by
139.Xr atf-sh 3
140instead of executing
141.Nm
142directly:
143.Bd -literal -offset indent
144# Exit code 0, nothing on stdout/stderr
145atf_check 'true'
146
147# Typical usage if failure is expected
148atf_check -s not-exit:0 'false'
149
150# Checking stdout/stderr
151echo foobar >expout
152atf_check -o file:expout -e inline:"xx\etyy\en" \e
153    'echo foobar ; printf "xx\etyy\en" >&2'
154
155# Checking for a crash
156atf_check -s signal:sigsegv my_program
157
158# Combined checks
159atf_check -o match:foo -o not-match:bar echo foo baz
160.Ed
161.Sh SEE ALSO
162.Xr atf-sh 1
163