Add basic tests for ctfconvert(1), fold(1) and rs(1)

Add basic command line parsing test coverage for these utilities.  The tests
were automatically generated based on their man pages.  These tests can be
expanded by hand for more thorough coverage.  The aim is to generate very
basic amount of test coverage for all the utilities in the base system.

Tests generated via: https://github.com/shivansh/smoketestsuite/

Submitted by:	shivansh
Reviewed by:	asomers
MFC after:	3 weeks
Differential Revision:	https://reviews.freebsd.org/D12424

cddl/usr.bin/ctfconvert/Makefile

@@ -1,5 +1,7 @@
 # $FreeBSD$
 
+.include <src.opts.mk>
+
 .PATH: ${SRCTOP}/cddl/contrib/opensolaris/tools/ctf/common
 .PATH: ${SRCTOP}/cddl/contrib/opensolaris/tools/ctf/cvt
 
@@ -36,4 +38,7 @@ CFLAGS+=	-I${SRCTOP}/sys/cddl/compat/opensolaris \
 
 LIBADD=		dwarf elf z pthread
 
+HAS_TESTS=
+SUBDIR.${MK_TESTS}+= tests
+
 .include <bsd.prog.mk>

cddl/usr.bin/ctfconvert/tests/Makefile

@@ -0,0 +1,5 @@
+# $FreeBSD$
+
+ATF_TESTS_SH+=  ctfconvert_test
+
+.include <bsd.test.mk>

cddl/usr.bin/ctfconvert/tests/ctfconvert_test.sh

@@ -0,0 +1,62 @@
+#
+# Copyright 2017 Shivansh
+# 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 AUTHOR 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 AUTHOR 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.
+#
+# $FreeBSD$
+#
+
+usage_output='Usage: ctfconvert'
+
+atf_test_case invalid_usage
+invalid_usage_head()
+{
+	atf_set "descr" "Verify that an invalid usage with a supported option produces a valid error message"
+}
+
+invalid_usage_body()
+{
+	atf_check -s not-exit:0 -e match:"$usage_output" ctfconvert -l
+	atf_check -s not-exit:0 -e match:"$usage_output" ctfconvert -L
+	atf_check -s not-exit:0 -e match:"$usage_output" ctfconvert -g
+	atf_check -s not-exit:0 -e match:"$usage_output" ctfconvert -i
+	atf_check -s not-exit:0 -e match:"$usage_output" ctfconvert -s
+	atf_check -s not-exit:0 -e match:"$usage_output" ctfconvert -o
+}
+
+atf_test_case no_arguments
+no_arguments_head()
+{
+	atf_set "descr" "Verify that ctfconvert(1) fails and generates a valid usage message when no arguments are supplied"
+}
+
+no_arguments_body()
+{
+	atf_check -s not-exit:0 -e match:"$usage_output" ctfconvert
+}
+
+atf_init_test_cases()
+{
+	atf_add_test_case invalid_usage
+	atf_add_test_case no_arguments
+}

etc/mtree/BSD.tests.dist

@@ -65,6 +65,8 @@
         sbin
         ..
         usr.bin
+            ctfconvert
+            ..
         ..
         usr.sbin
             dtrace
@@ -654,6 +656,8 @@
         ..
         file2c
         ..
+        fold
+        ..
         getconf
         ..
         grep
@@ -690,6 +694,8 @@
         ..
         procstat
         ..
+        rs
+        ..
         sdiff
         ..
         sed

usr.bin/fold/Makefile

@@ -1,6 +1,11 @@
 #	From: @(#)Makefile	8.1 (Berkeley) 6/6/93
 # $FreeBSD$
 
+.include <src.opts.mk>
+
 PROG=	fold
 
+HAS_TESTS=
+SUBDIR.${MK_TESTS}+= tests
+
 .include <bsd.prog.mk>

usr.bin/fold/tests/Makefile

@@ -0,0 +1,5 @@
+# $FreeBSD$
+
+ATF_TESTS_SH+=  fold_test
+
+.include <bsd.test.mk>

usr.bin/fold/tests/fold_test.sh

@@ -0,0 +1,81 @@
+#
+# Copyright 2017 Shivansh
+# 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 AUTHOR 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 AUTHOR 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.
+#
+# $FreeBSD$
+#
+
+atf_test_case b_flag
+b_flag_head()
+{
+	atf_set "descr" "Verify the usage of option 'b'"
+}
+
+b_flag_body()
+{
+	atf_check -s exit:0 -o empty fold -b < /dev/null
+}
+
+atf_test_case s_flag
+s_flag_head()
+{
+	atf_set "descr" "Verify the usage of option 's'"
+}
+
+s_flag_body()
+{
+	atf_check -s exit:0 -o empty fold -s < /dev/null
+}
+
+atf_test_case invalid_usage
+invalid_usage_head()
+{
+	atf_set "descr" "Verify that an invalid usage with a supported option produces a valid error message"
+}
+
+invalid_usage_body()
+{
+	atf_check -s not-exit:0 -e inline:"fold: option requires an argument -- w
+usage: fold [-bs] [-w width] [file ...]
+" fold -w
+}
+
+atf_test_case no_arguments
+no_arguments_head()
+{
+	atf_set "descr" "Verify that fold(1) executes successfully and silently when invoked without any arguments"
+}
+
+no_arguments_body()
+{
+	atf_check -s exit:0 -o empty fold < /dev/null
+}
+
+atf_init_test_cases()
+{
+	atf_add_test_case b_flag
+	atf_add_test_case s_flag
+	atf_add_test_case invalid_usage
+	atf_add_test_case no_arguments
+}

usr.bin/rs/Makefile

@@ -1,5 +1,11 @@
 #	@(#)Makefile	8.1 (Berkeley) 6/6/93
+# $FreeBSD$
+
+.include <src.opts.mk>
 
 PROG=	rs
 
+HAS_TESTS=
+SUBDIR.${MK_TESTS}+= tests
+
 .include <bsd.prog.mk>

usr.bin/rs/tests/Makefile

@@ -0,0 +1,5 @@
+# $FreeBSD$
+
+ATF_TESTS_SH+=  rs_test
+
+.include <bsd.test.mk>