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Remove *-api(3) manpages removed in ATF 0.21

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I overlooked the fact that these manpages had been removed upstream
and replaced with their non *-api(3) equivalents. Follow upstream's
lead and remove the unused manpages.

MFC after:	1 week
Sponsored by:	Dell EMC Isilon
This commit is contained in:
Enji Cooper 2017-03-06 22:18:14 +00:00
parent af6edc1bfd
commit de5e156be6
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=314805
3 changed files with 0 additions and 1745 deletions
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632
contrib/atf/atf-c++/atf-c++-api.3
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@ -1,632 +0,0 @@
.\"
.\" Automated Testing Framework (atf)
.\"
.\" Copyright (c) 2008 The NetBSD Foundation, Inc.
.\" All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\" notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\" notice, this list of conditions and the following disclaimer in the
.\" documentation and/or other materials provided with the distribution.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND
.\" CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
.\" INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
.\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
.\" IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY
.\" DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
.\" GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
.\" IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
.\" OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
.\" IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
.\"
.Dd March 6, 2017
.Dt ATF-C++-API 3
.Os
.Sh NAME
.Nm atf-c++-api ,
.Nm ATF_ADD_TEST_CASE ,
.Nm ATF_CHECK_ERRNO ,
.Nm ATF_FAIL ,
.Nm ATF_INIT_TEST_CASES ,
.Nm ATF_PASS ,
.Nm ATF_REQUIRE ,
.Nm ATF_REQUIRE_EQ ,
.Nm ATF_REQUIRE_ERRNO ,
.Nm ATF_REQUIRE_IN ,
.Nm ATF_REQUIRE_MATCH ,
.Nm ATF_REQUIRE_NOT_IN ,
.Nm ATF_REQUIRE_THROW ,
.Nm ATF_REQUIRE_THROW_RE ,
.Nm ATF_SKIP ,
.Nm ATF_TEST_CASE ,
.Nm ATF_TEST_CASE_BODY ,
.Nm ATF_TEST_CASE_CLEANUP ,
.Nm ATF_TEST_CASE_HEAD ,
.Nm ATF_TEST_CASE_NAME ,
.Nm ATF_TEST_CASE_USE ,
.Nm ATF_TEST_CASE_WITH_CLEANUP ,
.Nm ATF_TEST_CASE_WITHOUT_HEAD ,
.Nm atf::utils::cat_file ,
.Nm atf::utils::compare_file ,
.Nm atf::utils::copy_file ,
.Nm atf::utils::create_file ,
.Nm atf::utils::file_exists ,
.Nm atf::utils::fork ,
.Nm atf::utils::grep_collection ,
.Nm atf::utils::grep_file ,
.Nm atf::utils::grep_string ,
.Nm atf::utils::redirect ,
.Nm atf::utils::wait
.Nd C++ API to write ATF-based test programs
.Sh SYNOPSIS
.In atf-c++.hpp
.Fn ATF_ADD_TEST_CASE "tcs" "name"
.Fn ATF_CHECK_ERRNO "exp_errno" "bool_expression"
.Fn ATF_FAIL "reason"
.Fn ATF_INIT_TEST_CASES "tcs"
.Fn ATF_PASS
.Fn ATF_REQUIRE "expression"
.Fn ATF_REQUIRE_EQ "expression_1" "expression_2"
.Fn ATF_REQUIRE_ERRNO "exp_errno" "bool_expression"
.Fn ATF_REQUIRE_IN "element" "collection"
.Fn ATF_REQUIRE_MATCH "regexp" "string_expression"
.Fn ATF_REQUIRE_NOT_IN "element" "collection"
.Fn ATF_REQUIRE_THROW "expected_exception" "statement"
.Fn ATF_REQUIRE_THROW_RE "expected_exception" "regexp" "statement"
.Fn ATF_SKIP "reason"
.Fn ATF_TEST_CASE "name"
.Fn ATF_TEST_CASE_BODY "name"
.Fn ATF_TEST_CASE_CLEANUP "name"
.Fn ATF_TEST_CASE_HEAD "name"
.Fn ATF_TEST_CASE_NAME "name"
.Fn ATF_TEST_CASE_USE "name"
.Fn ATF_TEST_CASE_WITH_CLEANUP "name"
.Fn ATF_TEST_CASE_WITHOUT_HEAD "name"
.Ft void
.Fo atf::utils::cat_file
.Fa "const std::string& path"
.Fa "const std::string& prefix"
.Fc
.Ft bool
.Fo atf::utils::compare_file
.Fa "const std::string& path"
.Fa "const std::string& contents"
.Fc
.Ft void
.Fo atf::utils::copy_file
.Fa "const std::string& source"
.Fa "const std::string& destination"
.Fc
.Ft void
.Fo atf::utils::create_file
.Fa "const std::string& path"
.Fa "const std::string& contents"
.Fc
.Ft void
.Fo atf::utils::file_exists
.Fa "const std::string& path"
.Fc
.Ft pid_t
.Fo atf::utils::fork
.Fa "void"
.Fc
.Ft bool
.Fo atf::utils::grep_collection
.Fa "const std::string& regexp"
.Fa "const Collection& collection"
.Fc
.Ft bool
.Fo atf::utils::grep_file
.Fa "const std::string& regexp"
.Fa "const std::string& path"
.Fc
.Ft bool
.Fo atf::utils::grep_string
.Fa "const std::string& regexp"
.Fa "const std::string& path"
.Fc
.Ft void
.Fo atf::utils::redirect
.Fa "const int fd"
.Fa "const std::string& path"
.Fc
.Ft void
.Fo atf::utils::wait
.Fa "const pid_t pid"
.Fa "const int expected_exit_status"
.Fa "const std::string& expected_stdout"
.Fa "const std::string& expected_stderr"
.Fc
.Sh DESCRIPTION
ATF provides a C++ programming interface to implement test programs.
C++-based test programs follow this template:
.Bd -literal -offset indent
extern "C" {
.Ns ... C-specific includes go here ...
}
.Ns ... C++-specific includes go here ...
#include <atf-c++.hpp>
ATF_TEST_CASE(tc1);
ATF_TEST_CASE_HEAD(tc1)
{
... first test case's header ...
}
ATF_TEST_CASE_BODY(tc1)
{
... first test case's body ...
}
ATF_TEST_CASE_WITH_CLEANUP(tc2);
ATF_TEST_CASE_HEAD(tc2)
{
... second test case's header ...
}
ATF_TEST_CASE_BODY(tc2)
{
... second test case's body ...
}
ATF_TEST_CASE_CLEANUP(tc2)
{
... second test case's cleanup ...
}
ATF_TEST_CASE(tc3);
ATF_TEST_CASE_BODY(tc3)
{
... third test case's body ...
}
.Ns ... additional test cases ...
ATF_INIT_TEST_CASES(tcs)
{
ATF_ADD_TEST_CASE(tcs, tc1);
ATF_ADD_TEST_CASE(tcs, tc2);
ATF_ADD_TEST_CASE(tcs, tc3);
... add additional test cases ...
}
.Ed
.Ss Definition of test cases
Test cases have an identifier and are composed of three different parts:
the header, the body and an optional cleanup routine, all of which are
described in
.Xr atf-test-case 4 .
To define test cases, one can use the
.Fn ATF_TEST_CASE ,
.Fn ATF_TEST_CASE_WITH_CLEANUP
or the
.Fn ATF_TEST_CASE_WITHOUT_HEAD
macros, which take a single parameter specifying the test case's
name.
.Fn ATF_TEST_CASE ,
requires to define a head and a body for the test case,
.Fn ATF_TEST_CASE_WITH_CLEANUP
requires to define a head, a body and a cleanup for the test case and
.Fn ATF_TEST_CASE_WITHOUT_HEAD
requires only a body for the test case.
It is important to note that these
.Em do not
set the test case up for execution when the program is run.
In order to do so, a later registration is needed through the
.Fn ATF_ADD_TEST_CASE
macro detailed in
.Sx Program initialization .
.Pp
Later on, one must define the three parts of the body by means of three
functions.
Their headers are given by the
.Fn ATF_TEST_CASE_HEAD ,
.Fn ATF_TEST_CASE_BODY
and
.Fn ATF_TEST_CASE_CLEANUP
macros, all of which take the test case's name.
Following each of these, a block of code is expected, surrounded by the
opening and closing brackets.
.Pp
Additionally, the
.Fn ATF_TEST_CASE_NAME
macro can be used to obtain the name of the class corresponding to a
particular test case, as the name is internally managed by the library to
prevent clashes with other user identifiers.
Similarly, the
.Fn ATF_TEST_CASE_USE
macro can be executed on a particular test case to mark it as "used" and
thus prevent compiler warnings regarding unused symbols.
Note that
.Em you should never have to use these macros during regular operation.
.Ss Program initialization
The library provides a way to easily define the test program's
.Fn main
function.
You should never define one on your own, but rely on the
library to do it for you.
This is done by using the
.Fn ATF_INIT_TEST_CASES
macro, which is passed the name of the list that will hold the test cases.
This name can be whatever you want as long as it is a valid variable value.
.Pp
After the macro, you are supposed to provide the body of a function, which
should only use the
.Fn ATF_ADD_TEST_CASE
macro to register the test cases the test program will execute.
The first parameter of this macro matches the name you provided in the
former call.
.Ss Header definitions
The test case's header can define the meta-data by using the
.Fn set_md_var
method, which takes two parameters: the first one specifies the
meta-data variable to be set and the second one specifies its value.
Both of them are strings.
.Ss Configuration variables
The test case has read-only access to the current configuration variables
by means of the
.Ft bool
.Fn has_config_var
and the
.Ft std::string
.Fn get_config_var
methods, which can be called in any of the three parts of a test case.
.Ss Access to the source directory
It is possible to get the path to the test case's source directory from any
of its three components by querying the
.Sq srcdir
configuration variable.
.Ss Requiring programs
Aside from the
.Va require.progs
meta-data variable available in the header only, one can also check for
additional programs in the test case's body by using the
.Fn require_prog
function, which takes the base name or full path of a single binary.
Relative paths are forbidden.
If it is not found, the test case will be automatically skipped.
.Ss Test case finalization
The test case finalizes either when the body reaches its end, at which
point the test is assumed to have
.Em passed ,
or at any explicit call to
.Fn ATF_PASS ,
.Fn ATF_FAIL
or
.Fn ATF_SKIP .
These three macros terminate the execution of the test case immediately.
The cleanup routine will be processed afterwards in a completely automated
way, regardless of the test case's termination reason.
.Pp
.Fn ATF_PASS
does not take any parameters.
.Fn ATF_FAIL
and
.Fn ATF_SKIP
take a single string that describes why the test case failed or
was skipped, respectively.
It is very important to provide a clear error message in both cases so that
the user can quickly know why the test did not pass.
.Ss Expectations
Everything explained in the previous section changes when the test case
expectations are redefined by the programmer.
.Pp
Each test case has an internal state called
.Sq expect
that describes what the test case expectations are at any point in time.
The value of this property can change during execution by any of:
.Bl -tag -width indent
.It Fn expect_death "reason"
Expects the test case to exit prematurely regardless of the nature of the
exit.
.It Fn expect_exit "exitcode" "reason"
Expects the test case to exit cleanly.
If
.Va exitcode
is not
.Sq -1 ,
the runtime engine will validate that the exit code of the test case
matches the one provided in this call.
Otherwise, the exact value will be ignored.
.It Fn expect_fail "reason"
Any failure (be it fatal or non-fatal) raised in this mode is recorded.
However, such failures do not report the test case as failed; instead, the
test case finalizes cleanly and is reported as
.Sq expected failure ;
this report includes the provided
.Fa reason
as part of it.
If no error is raised while running in this mode, then the test case is
reported as
.Sq failed .
.Pp
This mode is useful to reproduce actual known bugs in tests.
Whenever the developer fixes the bug later on, the test case will start
reporting a failure, signaling the developer that the test case must be
adjusted to the new conditions.
In this situation, it is useful, for example, to set
.Fa reason
as the bug number for tracking purposes.
.It Fn expect_pass
This is the normal mode of execution.
In this mode, any failure is reported as such to the user and the test case
is marked as
.Sq failed .
.It Fn expect_race "reason"
Any failure or timeout during the execution of the test case will be
considered as if a race condition has been triggered and reported as such.
If no problems arise, the test will continue execution as usual.
.It Fn expect_signal "signo" "reason"
Expects the test case to terminate due to the reception of a signal.
If
.Va signo
is not
.Sq -1 ,
the runtime engine will validate that the signal that terminated the test
case matches the one provided in this call.
Otherwise, the exact value will be ignored.
.It Fn expect_timeout "reason"
Expects the test case to execute for longer than its timeout.
.El
.Ss Helper macros for common checks
The library provides several macros that are very handy in multiple
situations.
These basically check some condition after executing a given statement or
processing a given expression and, if the condition is not met, they
automatically call
.Fn ATF_FAIL
with an appropriate error message.
.Pp
.Fn ATF_REQUIRE
takes an expression and raises a failure if it evaluates to false.
.Pp
.Fn ATF_REQUIRE_EQ
takes two expressions and raises a failure if the two do not evaluate to
the same exact value.
.Pp
.Fn ATF_REQUIRE_IN
takes an element and a collection and validates that the element is present in
the collection.
.Pp
.Fn ATF_REQUIRE_MATCH
takes a regular expression and a string and raises a failure if the regular
expression does not match the string.
.Pp
.Fn ATF_REQUIRE_NOT_IN
takes an element and a collection and validates that the element is not present
in the collection.
.Pp
.Fn ATF_REQUIRE_THROW
takes the name of an exception and a statement and raises a failure if
the statement does not throw the specified exception.
.Fn ATF_REQUIRE_THROW_RE
takes the name of an exception, a regular expresion and a statement and raises a
failure if the statement does not throw the specified exception and if the
message of the exception does not match the regular expression.
.Pp
.Fn ATF_CHECK_ERRNO
and
.Fn ATF_REQUIRE_ERRNO
take, first, the error code that the check is expecting to find in the
.Va errno
variable and, second, a boolean expression that, if evaluates to true,
means that a call failed and
.Va errno
has to be checked against the first value.
.Ss Utility functions
The following functions are provided as part of the
.Nm
API to simplify the creation of a variety of tests.
In particular, these are useful to write tests for command-line interfaces.
.Pp
.Ft void
.Fo atf::utils::cat_file
.Fa "const std::string& path"
.Fa "const std::string& prefix"
.Fc
.Bd -ragged -offset indent
Prints the contents of
.Fa path
to the standard output, prefixing every line with the string in
.Fa prefix .
.Ed
.Pp
.Ft bool
.Fo atf::utils::compare_file
.Fa "const std::string& path"
.Fa "const std::string& contents"
.Fc
.Bd -ragged -offset indent
Returns true if the given
.Fa path
matches exactly the expected inlined
.Fa contents .
.Ed
.Pp
.Ft void
.Fo atf::utils::copy_file
.Fa "const std::string& source"
.Fa "const std::string& destination"
.Fc
.Bd -ragged -offset indent
Copies the file
.Fa source
to
.Fa destination .
The permissions of the file are preserved during the code.
.Ed
.Pp
.Ft void
.Fo atf::utils::create_file
.Fa "const std::string& path"
.Fa "const std::string& contents"
.Fc
.Bd -ragged -offset indent
Creates
.Fa file
with the text given in
.Fa contents .
.Ed
.Pp
.Ft void
.Fo atf::utils::file_exists
.Fa "const std::string& path"
.Fc
.Bd -ragged -offset indent
Checks if
.Fa path
exists.
.Ed
.Pp
.Ft pid_t
.Fo atf::utils::fork
.Fa "void"
.Fc
.Bd -ragged -offset indent
Forks a process and redirects the standard output and standard error of the
child to files for later validation with
.Fn atf::utils::wait .
Fails the test case if the fork fails, so this does not return an error.
.Ed
.Pp
.Ft bool
.Fo atf::utils::grep_collection
.Fa "const std::string& regexp"
.Fa "const Collection& collection"
.Fc
.Bd -ragged -offset indent
Searches for the regular expression
.Fa regexp
in any of the strings contained in the
.Fa collection .
This is a template that accepts any one-dimensional container of strings.
.Ed
.Pp
.Ft bool
.Fo atf::utils::grep_file
.Fa "const std::string& regexp"
.Fa "const std::string& path"
.Fc
.Bd -ragged -offset indent
Searches for the regular expression
.Fa regexp
in the file
.Fa path .
The variable arguments are used to construct the regular expression.
.Ed
.Pp
.Ft bool
.Fo atf::utils::grep_string
.Fa "const std::string& regexp"
.Fa "const std::string& str"
.Fc
.Bd -ragged -offset indent
Searches for the regular expression
.Fa regexp
in the string
.Fa str .
.Ed
.Ft void
.Fo atf::utils::redirect
.Fa "const int fd"
.Fa "const std::string& path"
.Fc
.Bd -ragged -offset indent
Redirects the given file descriptor
.Fa fd
to the file
.Fa path .
This function exits the process in case of an error and does not properly mark
the test case as failed.
As a result, it should only be used in subprocesses of the test case; specially
those spawned by
.Fn atf::utils::fork .
.Ed
.Pp
.Ft void
.Fo atf::utils::wait
.Fa "const pid_t pid"
.Fa "const int expected_exit_status"
.Fa "const std::string& expected_stdout"
.Fa "const std::string& expected_stderr"
.Fc
.Bd -ragged -offset indent
Waits and validates the result of a subprocess spawned with
.Fn atf::utils::wait .
The validation involves checking that the subprocess exited cleanly and returned
the code specified in
.Fa expected_exit_status
and that its standard output and standard error match the strings given in
.Fa expected_stdout
and
.Fa expected_stderr .
.Pp
If any of the
.Fa expected_stdout
or
.Fa expected_stderr
strings are prefixed with
.Sq save: ,
then they specify the name of the file into which to store the stdout or stderr
of the subprocess, and no comparison is performed.
.Ed
.Sh EXAMPLES
The following shows a complete test program with a single test case that
validates the addition operator:
.Bd -literal -offset indent
#include <atf-c++.hpp>
ATF_TEST_CASE(addition);
ATF_TEST_CASE_HEAD(addition)
{
set_md_var("descr", "Sample tests for the addition operator");
}
ATF_TEST_CASE_BODY(addition)
{
ATF_REQUIRE_EQ(0 + 0, 0);
ATF_REQUIRE_EQ(0 + 1, 1);
ATF_REQUIRE_EQ(1 + 0, 1);
ATF_REQUIRE_EQ(1 + 1, 2);
ATF_REQUIRE_EQ(100 + 200, 300);
}
ATF_TEST_CASE(open_failure);
ATF_TEST_CASE_HEAD(open_failure)
{
set_md_var("descr", "Sample tests for the open function");
}
ATF_TEST_CASE_BODY(open_failure)
{
ATF_REQUIRE_ERRNO(ENOENT, open("non-existent", O_RDONLY) == -1);
}
ATF_TEST_CASE(known_bug);
ATF_TEST_CASE_HEAD(known_bug)
{
set_md_var("descr", "Reproduces a known bug");
}
ATF_TEST_CASE_BODY(known_bug)
{
expect_fail("See bug number foo/bar");
ATF_REQUIRE_EQ(3, 1 + 1);
expect_pass();
ATF_REQUIRE_EQ(3, 1 + 2);
}
ATF_INIT_TEST_CASES(tcs)
{
ATF_ADD_TEST_CASE(tcs, addition);
ATF_ADD_TEST_CASE(tcs, open_failure);
ATF_ADD_TEST_CASE(tcs, known_bug);
}
.Ed
.Sh SEE ALSO
.Xr atf-test-program 1 ,
.Xr atf-test-case 4

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contrib/atf/atf-c/atf-c-api.3
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@ -1,772 +0,0 @@
.\"
.\" Automated Testing Framework (atf)
.\"
.\" Copyright (c) 2008 The NetBSD Foundation, Inc.
.\" All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\" notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\" notice, this list of conditions and the following disclaimer in the
.\" documentation and/or other materials provided with the distribution.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND
.\" CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
.\" INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
.\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
.\" IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY
.\" DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
.\" GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
.\" IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
.\" OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
.\" IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
.\"
.Dd March 6, 2017
.Dt ATF-C-API 3
.Os
.Sh NAME
.Nm atf-c-api ,
.Nm ATF_CHECK ,
.Nm ATF_CHECK_MSG ,
.Nm ATF_CHECK_EQ ,
.Nm ATF_CHECK_EQ_MSG ,
.Nm ATF_CHECK_MATCH ,
.Nm ATF_CHECK_MATCH_MSG ,
.Nm ATF_CHECK_STREQ ,
.Nm ATF_CHECK_STREQ_MSG ,
.Nm ATF_CHECK_ERRNO ,
.Nm ATF_REQUIRE ,
.Nm ATF_REQUIRE_MSG ,
.Nm ATF_REQUIRE_EQ ,
.Nm ATF_REQUIRE_EQ_MSG ,
.Nm ATF_REQUIRE_MATCH ,
.Nm ATF_REQUIRE_MATCH_MSG ,
.Nm ATF_REQUIRE_STREQ ,
.Nm ATF_REQUIRE_STREQ_MSG ,
.Nm ATF_REQUIRE_ERRNO ,
.Nm ATF_TC ,
.Nm ATF_TC_BODY ,
.Nm ATF_TC_BODY_NAME ,
.Nm ATF_TC_CLEANUP ,
.Nm ATF_TC_CLEANUP_NAME ,
.Nm ATF_TC_HEAD ,
.Nm ATF_TC_HEAD_NAME ,
.Nm ATF_TC_NAME ,
.Nm ATF_TC_WITH_CLEANUP ,
.Nm ATF_TC_WITHOUT_HEAD ,
.Nm ATF_TP_ADD_TC ,
.Nm ATF_TP_ADD_TCS ,
.Nm atf_tc_get_config_var ,
.Nm atf_tc_get_config_var_wd ,
.Nm atf_tc_get_config_var_as_bool ,
.Nm atf_tc_get_config_var_as_bool_wd ,
.Nm atf_tc_get_config_var_as_long ,
.Nm atf_tc_get_config_var_as_long_wd ,
.Nm atf_no_error ,
.Nm atf_tc_expect_death ,
.Nm atf_tc_expect_exit ,
.Nm atf_tc_expect_fail ,
.Nm atf_tc_expect_pass ,
.Nm atf_tc_expect_signal ,
.Nm atf_tc_expect_timeout ,
.Nm atf_tc_fail ,
.Nm atf_tc_fail_nonfatal ,
.Nm atf_tc_pass ,
.Nm atf_tc_skip ,
.Nm atf_utils_cat_file ,
.Nm atf_utils_compare_file ,
.Nm atf_utils_copy_file ,
.Nm atf_utils_create_file ,
.Nm atf_utils_file_exists ,
.Nm atf_utils_fork ,
.Nm atf_utils_free_charpp ,
.Nm atf_utils_grep_file ,
.Nm atf_utils_grep_string ,
.Nm atf_utils_readline ,
.Nm atf_utils_redirect ,
.Nm atf_utils_wait
.Nd C API to write ATF-based test programs
.Sh SYNOPSIS
.In atf-c.h
.Fn ATF_CHECK "expression"
.Fn ATF_CHECK_MSG "expression" "fail_msg_fmt" ...
.Fn ATF_CHECK_EQ "expression_1" "expression_2"
.Fn ATF_CHECK_EQ_MSG "expression_1" "expression_2" "fail_msg_fmt" ...
.Fn ATF_CHECK_MATCH "regexp" "string"
.Fn ATF_CHECK_MATCH_MSG "regexp" "string" "fail_msg_fmt" ...
.Fn ATF_CHECK_STREQ "string_1" "string_2"
.Fn ATF_CHECK_STREQ_MSG "string_1" "string_2" "fail_msg_fmt" ...
.Fn ATF_CHECK_ERRNO "exp_errno" "bool_expression"
.Fn ATF_REQUIRE "expression"
.Fn ATF_REQUIRE_MSG "expression" "fail_msg_fmt" ...
.Fn ATF_REQUIRE_EQ "expression_1" "expression_2"
.Fn ATF_REQUIRE_EQ_MSG "expression_1" "expression_2" "fail_msg_fmt" ...
.Fn ATF_REQUIRE_MATCH "regexp" "string"
.Fn ATF_REQUIRE_MATCH_MSG "regexp" "string" "fail_msg_fmt" ...
.Fn ATF_REQUIRE_STREQ "string_1" "string_2"
.Fn ATF_REQUIRE_STREQ_MSG "string_1" "string_2" "fail_msg_fmt" ...
.Fn ATF_REQUIRE_ERRNO "exp_errno" "bool_expression"
.Fn ATF_TC "name"
.Fn ATF_TC_BODY "name" "tc"
.Fn ATF_TC_BODY_NAME "name"
.Fn ATF_TC_CLEANUP "name" "tc"
.Fn ATF_TC_CLEANUP_NAME "name"
.Fn ATF_TC_HEAD "name" "tc"
.Fn ATF_TC_HEAD_NAME "name"
.Fn ATF_TC_NAME "name"
.Fn ATF_TC_WITH_CLEANUP "name"
.Fn ATF_TC_WITHOUT_HEAD "name"
.Fn ATF_TP_ADD_TC "tp_name" "tc_name"
.Fn ATF_TP_ADD_TCS "tp_name"
.Fn atf_tc_get_config_var "tc" "varname"
.Fn atf_tc_get_config_var_wd "tc" "variable_name" "default_value"
.Fn atf_tc_get_config_var_as_bool "tc" "variable_name"
.Fn atf_tc_get_config_var_as_bool_wd "tc" "variable_name" "default_value"
.Fn atf_tc_get_config_var_as_long "tc" "variable_name"
.Fn atf_tc_get_config_var_as_long_wd "tc" "variable_name" "default_value"
.Fn atf_no_error
.Fn atf_tc_expect_death "reason" "..."
.Fn atf_tc_expect_exit "exitcode" "reason" "..."
.Fn atf_tc_expect_fail "reason" "..."
.Fn atf_tc_expect_pass
.Fn atf_tc_expect_signal "signo" "reason" "..."
.Fn atf_tc_expect_timeout "reason" "..."
.Fn atf_tc_fail "reason"
.Fn atf_tc_fail_nonfatal "reason"
.Fn atf_tc_pass
.Fn atf_tc_skip "reason"
.Ft void
.Fo atf_utils_cat_file
.Fa "const char *file"
.Fa "const char *prefix"
.Fc
.Ft bool
.Fo atf_utils_compare_file
.Fa "const char *file"
.Fa "const char *contents"
.Fc
.Ft void
.Fo atf_utils_copy_file
.Fa "const char *source"
.Fa "const char *destination"
.Fc
.Ft void
.Fo atf_utils_create_file
.Fa "const char *file"
.Fa "const char *contents"
.Fa "..."
.Fc
.Ft void
.Fo atf_utils_file_exists
.Fa "const char *file"
.Fc
.Ft pid_t
.Fo atf_utils_fork
.Fa "void"
.Fc
.Ft void
.Fo atf_utils_free_charpp
.Fa "char **argv"
.Fc
.Ft bool
.Fo atf_utils_grep_file
.Fa "const char *regexp"
.Fa "const char *file"
.Fa "..."
.Fc
.Ft bool
.Fo atf_utils_grep_string
.Fa "const char *regexp"
.Fa "const char *str"
.Fa "..."
.Fc
.Ft char *
.Fo atf_utils_readline
.Fa "int fd"
.Fc
.Ft void
.Fo atf_utils_redirect
.Fa "const int fd"
.Fa "const char *file"
.Fc
.Ft void
.Fo atf_utils_wait
.Fa "const pid_t pid"
.Fa "const int expected_exit_status"
.Fa "const char *expected_stdout"
.Fa "const char *expected_stderr"
.Fc
.Sh DESCRIPTION
ATF provides a C programming interface to implement test programs.
C-based test programs follow this template:
.Bd -literal -offset indent
.Ns ... C-specific includes go here ...
#include <atf-c.h>
ATF_TC(tc1);
ATF_TC_HEAD(tc1, tc)
{
... first test case's header ...
}
ATF_TC_BODY(tc1, tc)
{
... first test case's body ...
}
ATF_TC_WITH_CLEANUP(tc2);
ATF_TC_HEAD(tc2, tc)
{
... second test case's header ...
}
ATF_TC_BODY(tc2, tc)
{
... second test case's body ...
}
ATF_TC_CLEANUP(tc2, tc)
{
... second test case's cleanup ...
}
ATF_TC_WITHOUT_HEAD(tc3);
ATF_TC_BODY(tc3, tc)
{
... third test case's body ...
}
.Ns ... additional test cases ...
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, tc1);
ATF_TP_ADD_TC(tp, tc2);
ATF_TP_ADD_TC(tp, tc3);
... add additional test cases ...
return atf_no_error();
}
.Ed
.Ss Definition of test cases
Test cases have an identifier and are composed of three different parts:
the header, the body and an optional cleanup routine, all of which are
described in
.Xr atf-test-case 4 .
To define test cases, one can use the
.Fn ATF_TC ,
.Fn ATF_TC_WITH_CLEANUP
or the
.Fn ATF_TC_WITHOUT_HEAD
macros, which take a single parameter specifying the test case's name.
.Fn ATF_TC ,
requires to define a head and a body for the test case,
.Fn ATF_TC_WITH_CLEANUP
requires to define a head, a body and a cleanup for the test case and
.Fn ATF_TC_WITHOUT_HEAD
requires only a body for the test case.
It is important to note that these
.Em do not
set the test case up for execution when the program is run.
In order to do so, a later registration is needed with the
.Fn ATF_TP_ADD_TC
macro detailed in
.Sx Program initialization .
.Pp
Later on, one must define the three parts of the body by means of three
functions.
Their headers are given by the
.Fn ATF_TC_HEAD ,
.Fn ATF_TC_BODY
and
.Fn ATF_TC_CLEANUP
macros, all of which take the test case name provided to the
.Fn ATF_TC
.Fn ATF_TC_WITH_CLEANUP ,
or
.Fn ATF_TC_WITHOUT_HEAD
macros and the name of the variable that will hold a pointer to the
test case data.
Following each of these, a block of code is expected, surrounded by the
opening and closing brackets.
.Ss Program initialization
The library provides a way to easily define the test program's
.Fn main
function.
You should never define one on your own, but rely on the
library to do it for you.
This is done by using the
.Fn ATF_TP_ADD_TCS
macro, which is passed the name of the object that will hold the test
cases, i.e., the test program instance.
This name can be whatever you want as long as it is a valid variable
identifier.
.Pp
After the macro, you are supposed to provide the body of a function, which
should only use the
.Fn ATF_TP_ADD_TC
macro to register the test cases the test program will execute and return
a success error code.
The first parameter of this macro matches the name you provided in the
former call.
The success status can be returned using the
.Fn atf_no_error
function.
.Ss Header definitions
The test case's header can define the meta-data by using the
.Fn atf_tc_set_md_var
method, which takes three parameters: the first one points to the test
case data, the second one specifies the meta-data variable to be set
and the third one specifies its value.
Both of them are strings.
.Ss Configuration variables
The test case has read-only access to the current configuration variables
by means of the
.Ft bool
.Fn atf_tc_has_config_var ,
.Ft const char *
.Fn atf_tc_get_config_var ,
.Ft const char *
.Fn atf_tc_get_config_var_wd ,
.Ft bool
.Fn atf_tc_get_config_var_as_bool ,
.Ft bool
.Fn atf_tc_get_config_var_as_bool_wd ,
.Ft long
.Fn atf_tc_get_config_var_as_long ,
and the
.Ft long
.Fn atf_tc_get_config_var_as_long_wd
functions, which can be called in any of the three parts of a test case.
.Pp
The
.Sq _wd
variants take a default value for the variable which is returned if the
variable is not defined.
The other functions without the
.Sq _wd
suffix
.Em require
the variable to be defined.
.Ss Access to the source directory
It is possible to get the path to the test case's source directory from any
of its three components by querying the
.Sq srcdir
configuration variable.
.Ss Requiring programs
Aside from the
.Va require.progs
meta-data variable available in the header only, one can also check for
additional programs in the test case's body by using the
.Fn atf_tc_require_prog
function, which takes the base name or full path of a single binary.
Relative paths are forbidden.
If it is not found, the test case will be automatically skipped.
.Ss Test case finalization
The test case finalizes either when the body reaches its end, at which
point the test is assumed to have
.Em passed ,
unless any non-fatal errors were raised using
.Fn atf_tc_fail_nonfatal ,
or at any explicit call to
.Fn atf_tc_pass ,
.Fn atf_tc_fail
or
.Fn atf_tc_skip .
These three functions terminate the execution of the test case immediately.
The cleanup routine will be processed afterwards in a completely automated
way, regardless of the test case's termination reason.
.Pp
.Fn atf_tc_pass
does not take any parameters.
.Fn atf_tc_fail ,
.Fn atf_tc_fail_nonfatal
and
.Fn atf_tc_skip
take a format string and a variable list of parameters, which describe, in
a user-friendly manner, why the test case failed or was skipped,
respectively.
It is very important to provide a clear error message in both cases so that
the user can quickly know why the test did not pass.
.Ss Expectations
Everything explained in the previous section changes when the test case
expectations are redefined by the programmer.
.Pp
Each test case has an internal state called
.Sq expect
that describes what the test case expectations are at any point in time.
The value of this property can change during execution by any of:
.Bl -tag -width indent
.It Fn atf_tc_expect_death "reason" "..."
Expects the test case to exit prematurely regardless of the nature of the
exit.
.It Fn atf_tc_expect_exit "exitcode" "reason" "..."
Expects the test case to exit cleanly.
If
.Va exitcode
is not
.Sq -1 ,
the runtime engine will validate that the exit code of the test case
matches the one provided in this call.
Otherwise, the exact value will be ignored.
.It Fn atf_tc_expect_fail "reason" "..."
Any failure (be it fatal or non-fatal) raised in this mode is recorded.
However, such failures do not report the test case as failed; instead, the
test case finalizes cleanly and is reported as
.Sq expected failure ;
this report includes the provided
.Fa reason
as part of it.
If no error is raised while running in this mode, then the test case is
reported as
.Sq failed .
.Pp
This mode is useful to reproduce actual known bugs in tests.
Whenever the developer fixes the bug later on, the test case will start
reporting a failure, signaling the developer that the test case must be
adjusted to the new conditions.
In this situation, it is useful, for example, to set
.Fa reason
as the bug number for tracking purposes.
.It Fn atf_tc_expect_pass
This is the normal mode of execution.
In this mode, any failure is reported as such to the user and the test case
is marked as
.Sq failed .
.It Fn atf_tc_expect_signal "signo" "reason" "..."
Expects the test case to terminate due to the reception of a signal.
If
.Va signo
is not
.Sq -1 ,
the runtime engine will validate that the signal that terminated the test
case matches the one provided in this call.
Otherwise, the exact value will be ignored.
.It Fn atf_tc_expect_timeout "reason" "..."
Expects the test case to execute for longer than its timeout.
.El
.Ss Helper macros for common checks
The library provides several macros that are very handy in multiple
situations.
These basically check some condition after executing a given statement or
processing a given expression and, if the condition is not met, they
report the test case as failed.
.Pp
The
.Sq REQUIRE
variant of the macros immediately abort the test case as soon as an error
condition is detected by calling the
.Fn atf_tc_fail
function.
Use this variant whenever it makes no sense to continue the execution of a
test case when the checked condition is not met.
The
.Sq CHECK
variant, on the other hand, reports a failure as soon as it is encountered
using the
.Fn atf_tc_fail_nonfatal
function, but the execution of the test case continues as if nothing had
happened.
Use this variant whenever the checked condition is important as a result of
the test case, but there are other conditions that can be subsequently
checked on the same run without aborting.
.Pp
Additionally, the
.Sq MSG
variants take an extra set of parameters to explicitly specify the failure
message.
This failure message is formatted according to the
.Xr printf 3
formatters.
.Pp
.Fn ATF_CHECK ,
.Fn ATF_CHECK_MSG ,
.Fn ATF_REQUIRE
and
.Fn ATF_REQUIRE_MSG
take an expression and fail if the expression evaluates to false.
.Pp
.Fn ATF_CHECK_EQ ,
.Fn ATF_CHECK_EQ_MSG ,
.Fn ATF_REQUIRE_EQ
and
.Fn ATF_REQUIRE_EQ_MSG
take two expressions and fail if the two evaluated values are not equal.
.Pp
.Fn ATF_CHECK_MATCH ,
.Fn ATF_CHECK_MATCH_MSG ,
.Fn ATF_REQUIRE_MATCH
and
.Fn ATF_REQUIRE_MATCH_MSG
take a regular expression and a string and fail if the regular expression does
not match the given string.
Note that the regular expression is not anchored, so it will match anywhere in
the string.
.Pp
.Fn ATF_CHECK_STREQ ,
.Fn ATF_CHECK_STREQ_MSG ,
.Fn ATF_REQUIRE_STREQ
and
.Fn ATF_REQUIRE_STREQ_MSG
take two strings and fail if the two are not equal character by character.
.Pp
.Fn ATF_CHECK_ERRNO
and
.Fn ATF_REQUIRE_ERRNO
take, first, the error code that the check is expecting to find in the
.Va errno
variable and, second, a boolean expression that, if evaluates to true,
means that a call failed and
.Va errno
has to be checked against the first value.
.Ss Utility functions
The following functions are provided as part of the
.Nm
API to simplify the creation of a variety of tests.
In particular, these are useful to write tests for command-line interfaces.
.Pp
.Ft void
.Fo atf_utils_cat_file
.Fa "const char *file"
.Fa "const char *prefix"
.Fc
.Bd -ragged -offset indent
Prints the contents of
.Fa file
to the standard output, prefixing every line with the string in
.Fa prefix .
.Ed
.Pp
.Ft bool
.Fo atf_utils_compare_file
.Fa "const char *file"
.Fa "const char *contents"
.Fc
.Bd -ragged -offset indent
Returns true if the given
.Fa file
matches exactly the expected inlined
.Fa contents .
.Ed
.Pp
.Ft void
.Fo atf_utils_copy_file
.Fa "const char *source"
.Fa "const char *destination"
.Fc
.Bd -ragged -offset indent
Copies the file
.Fa source
to
.Fa destination .
The permissions of the file are preserved during the code.
.Ed
.Pp
.Ft void
.Fo atf_utils_create_file
.Fa "const char *file"
.Fa "const char *contents"
.Fa "..."
.Fc
.Bd -ragged -offset indent
Creates
.Fa file
with the text given in
.Fa contents ,
which is a formatting string that uses the rest of the variable arguments.
.Ed
.Pp
.Ft void
.Fo atf_utils_file_exists
.Fa "const char *file"
.Fc
.Bd -ragged -offset indent
Checks if
.Fa file
exists.
.Ed
.Pp
.Ft pid_t
.Fo atf_utils_fork
.Fa "void"
.Fc
.Bd -ragged -offset indent
Forks a process and redirects the standard output and standard error of the
child to files for later validation with
.Fn atf_utils_wait .
Fails the test case if the fork fails, so this does not return an error.
.Ed
.Pp
.Ft void
.Fo atf_utils_free_charpp
.Fa "char **argv"
.Fc
.Bd -ragged -offset indent
Frees a dynamically-allocated array of dynamically-allocated strings.
.Ed
.Pp
.Ft bool
.Fo atf_utils_grep_file
.Fa "const char *regexp"
.Fa "const char *file"
.Fa "..."
.Fc
.Bd -ragged -offset indent
Searches for the
.Fa regexp ,
which is a formatting string representing the regular expression,
in the
.Fa file .
The variable arguments are used to construct the regular expression.
.Ed
.Pp
.Ft bool
.Fo atf_utils_grep_string
.Fa "const char *regexp"
.Fa "const char *str"
.Fa "..."
.Fc
.Bd -ragged -offset indent
Searches for the
.Fa regexp ,
which is a formatting string representing the regular expression,
in the literal string
.Fa str .
The variable arguments are used to construct the regular expression.
.Ed
.Pp
.Ft char *
.Fo atf_utils_readline
.Fa "int fd"
.Fc
.Bd -ragged -offset indent
Reads a line from the file descriptor
.Fa fd .
The line, if any, is returned as a dynamically-allocated buffer that must be
released with
.Xr free 3 .
If there was nothing to read, returns
.Sq NULL .
.Ed
.Pp
.Ft void
.Fo atf_utils_redirect
.Fa "const int fd"
.Fa "const char *file"
.Fc
.Bd -ragged -offset indent
Redirects the given file descriptor
.Fa fd
to
.Fa file .
This function exits the process in case of an error and does not properly mark
the test case as failed.
As a result, it should only be used in subprocesses of the test case; specially
those spawned by
.Fn atf_utils_fork .
.Ed
.Pp
.Ft void
.Fo atf_utils_wait
.Fa "const pid_t pid"
.Fa "const int expected_exit_status"
.Fa "const char *expected_stdout"
.Fa "const char *expected_stderr"
.Fc
.Bd -ragged -offset indent
Waits and validates the result of a subprocess spawned with
.Fn atf_utils_wait .
The validation involves checking that the subprocess exited cleanly and returned
the code specified in
.Fa expected_exit_status
and that its standard output and standard error match the strings given in
.Fa expected_stdout
and
.Fa expected_stderr .
.Pp
If any of the
.Fa expected_stdout
or
.Fa expected_stderr
strings are prefixed with
.Sq save: ,
then they specify the name of the file into which to store the stdout or stderr
of the subprocess, and no comparison is performed.
.Ed
.Sh EXAMPLES
The following shows a complete test program with a single test case that
validates the addition operator:
.Bd -literal -offset indent
#include <atf-c.h>
ATF_TC(addition);
ATF_TC_HEAD(addition, tc)
{
atf_tc_set_md_var(tc, "descr",
"Sample tests for the addition operator");
}
ATF_TC_BODY(addition, tc)
{
ATF_CHECK_EQ(0 + 0, 0);
ATF_CHECK_EQ(0 + 1, 1);
ATF_CHECK_EQ(1 + 0, 1);
ATF_CHECK_EQ(1 + 1, 2);
ATF_CHECK_EQ(100 + 200, 300);
}
ATF_TC(string_formatting);
ATF_TC_HEAD(string_formatting, tc)
{
atf_tc_set_md_var(tc, "descr",
"Sample tests for the snprintf");
}
ATF_TC_BODY(string_formatting, tc)
{
char buf[1024];
snprintf(buf, sizeof(buf), "a %s", "string");
ATF_CHECK_STREQ_MSG("a string", buf, "%s is not working");
}
ATF_TC(open_failure);
ATF_TC_HEAD(open_failure, tc)
{
atf_tc_set_md_var(tc, "descr",
"Sample tests for the open function");
}
ATF_TC_BODY(open_failure, tc)
{
ATF_CHECK_ERRNO(ENOENT, open("non-existent", O_RDONLY) == -1);
}
ATF_TC(known_bug);
ATF_TC_HEAD(known_bug, tc)
{
atf_tc_set_md_var(tc, "descr",
"Reproduces a known bug");
}
ATF_TC_BODY(known_bug, tc)
{
atf_tc_expect_fail("See bug number foo/bar");
ATF_CHECK_EQ(3, 1 + 1);
atf_tc_expect_pass();
ATF_CHECK_EQ(3, 1 + 2);
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, addition);
ATF_TP_ADD_TC(tp, string_formatting);
ATF_TP_ADD_TC(tp, open_failure);
ATF_TP_ADD_TC(tp, known_bug);
return atf_no_error();
}
.Ed
.Sh SEE ALSO
.Xr atf-test-program 1 ,
.Xr atf-test-case 4

341
contrib/atf/atf-sh/atf-sh-api.3
View file

@ -1,341 +0,0 @@
.\"
.\" Automated Testing Framework (atf)
.\"
.\" Copyright (c) 2008 The NetBSD Foundation, Inc.
.\" All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\" notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\" notice, this list of conditions and the following disclaimer in the
.\" documentation and/or other materials provided with the distribution.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND
.\" CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
.\" INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
.\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
.\" IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY
.\" DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
.\" GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
.\" IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
.\" OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
.\" IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
.\"
.Dd March 6, 2017
.Dt ATF-SH-API 3
.Os
.Sh NAME
.Nm atf_add_test_case ,
.Nm atf_check ,
.Nm atf_check_equal ,
.Nm atf_config_get ,
.Nm atf_config_has ,
.Nm atf_expect_death ,
.Nm atf_expect_exit ,
.Nm atf_expect_fail ,
.Nm atf_expect_pass ,
.Nm atf_expect_signal ,
.Nm atf_expect_timeout ,
.Nm atf_fail ,
.Nm atf_get ,
.Nm atf_get_srcdir ,
.Nm atf_pass ,
.Nm atf_require_prog ,
.Nm atf_set ,
.Nm atf_skip ,
.Nm atf_test_case
.Nd POSIX shell API to write ATF-based test programs
.Sh SYNOPSIS
.Fn atf_add_test_case "name"
.Fn atf_check "command"
.Fn atf_check_equal "expr1" "expr2"
.Fn atf_config_get "var_name"
.Fn atf_config_has "var_name"
.Fn atf_expect_death "reason" "..."
.Fn atf_expect_exit "exitcode" "reason" "..."
.Fn atf_expect_fail "reason" "..."
.Fn atf_expect_pass
.Fn atf_expect_signal "signo" "reason" "..."
.Fn atf_expect_timeout "reason" "..."
.Fn atf_fail "reason"
.Fn atf_get "var_name"
.Fn atf_get_srcdir
.Fn atf_pass
.Fn atf_require_prog "prog_name"
.Fn atf_set "var_name" "value"
.Fn atf_skip "reason"
.Fn atf_test_case "name" "cleanup"
.Sh DESCRIPTION
ATF
provides a simple but powerful interface to easily write test programs in
the POSIX shell language.
These are extremely helpful given that they are trivial to write due to the
language simplicity and the great deal of available external tools, so they
are often ideal to test other applications at the user level.
.Pp
Test programs written using this library must be run using the
.Xr atf-sh 1
interpreter by putting the following on their very first line:
.Bd -literal -offset indent
#! /usr/bin/env atf-sh
.Ed
.Pp
Shell-based test programs always follow this template:
.Bd -literal -offset indent
atf_test_case tc1
tc1_head() {
... first test case's header ...
}
tc1_body() {
... first test case's body ...
}
atf_test_case tc2 cleanup
tc2_head() {
... second test case's header ...
}
tc2_body() {
... second test case's body ...
}
tc2_cleanup() {
... second test case's cleanup ...
}
.Ns ... additional test cases ...
atf_init_test_cases() {
atf_add_test_case tc1
atf_add_test_case tc2
... add additional test cases ...
}
.Ed
.Ss Definition of test cases
Test cases have an identifier and are composed of three different parts:
the header, the body and an optional cleanup routine, all of which are
described in
.Xr atf-test-case 4 .
To define test cases, one can use the
.Fn atf_test_case
function, which takes a first parameter specifying the test case's
name and instructs the library to set things up to accept it as a valid
test case.
The second parameter is optional and, if provided, must be
.Sq cleanup ;
providing this parameter allows defining a cleanup routine for the test
case.
It is important to note that this function
.Em does not
set the test case up for execution when the program is run.
In order to do so, a later registration is needed through the
.Fn atf_add_test_case
function detailed in
.Sx Program initialization .
.Pp
Later on, one must define the three parts of the body by providing two
or three functions (remember that the cleanup routine is optional).
These functions are named after the test case's identifier, and are
.Fn <id>_head ,
.Fn <id>_body
and
.Fn <id>_cleanup.
None of these take parameters when executed.
.Ss Program initialization
The test program must define an
.Fn atf_init_test_cases
function, which is in charge of registering the test cases that will be
executed at run time by using the
.Fn atf_add_test_case
function, which takes the name of a test case as its single parameter.
This main function should not do anything else, except maybe sourcing
auxiliary source files that define extra variables and functions.
.Ss Configuration variables
The test case has read-only access to the current configuration variables
through the
.Fn atf_config_has
and
.Fn atf_config_get
methods.
The former takes a single parameter specifying a variable name and returns
a boolean indicating whether the variable is defined or not.
The latter can take one or two parameters.
If it takes only one, it specifies the variable from which to get the
value, and this variable must be defined.
If it takes two, the second one specifies a default value to be returned
if the variable is not available.
.Ss Access to the source directory
It is possible to get the path to the test case's source directory from
anywhere in the test program by using the
.Fn atf_get_srcdir
function.
It is interesting to note that this can be used inside
.Fn atf_init_test_cases
to silently include additional helper files from the source directory.
.Ss Requiring programs
Aside from the
.Va require.progs
meta-data variable available in the header only, one can also check for
additional programs in the test case's body by using the
.Fn atf_require_prog
function, which takes the base name or full path of a single binary.
Relative paths are forbidden.
If it is not found, the test case will be automatically skipped.
.Ss Test case finalization
The test case finalizes either when the body reaches its end, at which
point the test is assumed to have
.Em passed ,
or at any explicit call to
.Fn atf_pass ,
.Fn atf_fail
or
.Fn atf_skip .
These three functions terminate the execution of the test case immediately.
The cleanup routine will be processed afterwards in a completely automated
way, regardless of the test case's termination reason.
.Pp
.Fn atf_pass
does not take any parameters.
.Fn atf_fail
and
.Fn atf_skip
take a single string parameter that describes why the test case failed or
was skipped, respectively.
It is very important to provide a clear error message in both cases so that
the user can quickly know why the test did not pass.
.Ss Expectations
Everything explained in the previous section changes when the test case
expectations are redefined by the programmer.
.Pp
Each test case has an internal state called
.Sq expect
that describes what the test case expectations are at any point in time.
The value of this property can change during execution by any of:
.Bl -tag -width indent
.It Fn atf_expect_death "reason" "..."
Expects the test case to exit prematurely regardless of the nature of the
exit.
.It Fn atf_expect_exit "exitcode" "reason" "..."
Expects the test case to exit cleanly.
If
.Va exitcode
is not
.Sq -1 ,
the runtime engine will validate that the exit code of the test case
matches the one provided in this call.
Otherwise, the exact value will be ignored.
.It Fn atf_expect_fail "reason"
Any failure raised in this mode is recorded, but such failures do not report
the test case as failed; instead, the test case finalizes cleanly and is
reported as
.Sq expected failure ;
this report includes the provided
.Fa reason
as part of it.
If no error is raised while running in this mode, then the test case is
reported as
.Sq failed .
.Pp
This mode is useful to reproduce actual known bugs in tests.
Whenever the developer fixes the bug later on, the test case will start
reporting a failure, signaling the developer that the test case must be
adjusted to the new conditions.
In this situation, it is useful, for example, to set
.Fa reason
as the bug number for tracking purposes.
.It Fn atf_expect_pass
This is the normal mode of execution.
In this mode, any failure is reported as such to the user and the test case
is marked as
.Sq failed .
.It Fn atf_expect_signal "signo" "reason" "..."
Expects the test case to terminate due to the reception of a signal.
If
.Va signo
is not
.Sq -1 ,
the runtime engine will validate that the signal that terminated the test
case matches the one provided in this call.
Otherwise, the exact value will be ignored.
.It Fn atf_expect_timeout "reason" "..."
Expects the test case to execute for longer than its timeout.
.El
.Ss Helper functions for common checks
.Fn atf_check [options] command [args]
.Pp
This function wraps the execution of the
.Nm atf-check
tool and makes the test case fail if the tool reports failure.
You should always use this function instead of the tool in your scripts.
For more details on the parameters of this function, refer to
.Xr atf-check 1 .
.Pp
.Fn atf_check_equal expr1 expr2
.Pp
This function takes two expressions, evaluates them and, if their
results differ, aborts the test case with an appropriate failure message.
.Sh EXAMPLES
The following shows a complete test program with a single test case that
validates the addition operator:
.Bd -literal -offset indent
atf_test_case addition
addition_head() {
atf_set "descr" "Sample tests for the addition operator"
}
addition_body() {
atf_check_equal $((0 + 0)) 0
atf_check_equal $((0 + 1)) 1
atf_check_equal $((1 + 0)) 0
atf_check_equal $((1 + 1)) 2
atf_check_equal $((100 + 200)) 300
}
atf_init_test_cases() {
atf_add_test_case addition
}
.Ed
.Pp
This other example shows how to include a file with extra helper functions
in the test program:
.Bd -literal -offset indent
.Ns ... definition of test cases ...
atf_init_test_cases() {
. $(atf_get_srcdir)/helper_functions.sh
atf_add_test_case foo1
atf_add_test_case foo2
}
.Ed
.Pp
This example demonstrates the use of the very useful
.Fn atf_check
function:
.Bd -literal -offset indent
# Check for silent output
atf_check -s exit:0 -o empty -e empty 'true'
# Check for silent output and failure
atf_check -s exit:1 -o empty -e empty 'false'
# Check for known stdout and silent stderr
echo foo >expout
atf_check -s exit:0 -o file:expout -e empty 'echo foo'
# Generate a file for later inspection
atf_check -s exit:0 -o save:stdout -e empty 'ls'
grep foo ls || atf_fail "foo file not found in listing"
# Or just do the match along the way
atf_check -s exit:0 -o match:"^foo$" -e empty 'ls'
.Ed
.Sh SEE ALSO
.Xr atf-check 1 ,
.Xr atf-sh 1 ,
.Xr atf-test-program 1 ,
.Xr atf-test-case 4