[src/trunk]: src/tests/bin/sh Add tests for the $(( )) assignment operators ...

[kre <kre%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/1aee15b26cf0
branches:  trunk
changeset: 822438:1aee15b26cf0
user:      kre <kre%NetBSD.org@localhost>
date:      Mon Mar 20 11:32:51 2017 +0000

description:
Add tests for the $(( )) assignment operators  PR bin/50958

diffstat:

 tests/bin/sh/t_arith.sh |  61 +++++++++++++++++++++++++++++++++++++++++++++++-
 1 files changed, 59 insertions(+), 2 deletions(-)

diffs (81 lines):

diff -r 9343cb3e5fa2 -r 1aee15b26cf0 tests/bin/sh/t_arith.sh
--- a/tests/bin/sh/t_arith.sh   Mon Mar 20 11:31:00 2017 +0000
+++ b/tests/bin/sh/t_arith.sh   Mon Mar 20 11:32:51 2017 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: t_arith.sh,v 1.5 2016/05/12 14:25:11 kre Exp $
+# $NetBSD: t_arith.sh,v 1.6 2017/03/20 11:32:51 kre Exp $
 #
 # Copyright (c) 2016 The NetBSD Foundation, Inc.
 # All rights reserved.
@@ -980,6 +980,63 @@
                'echo $(( (0xfD & 0xF) == 0xF ))'
 }
 
+atf_test_case var_assign
+var_assign_head()
+{
+       atf_set "descr" "Test assignment operators in arithmetic expressions"
+}
+var_assign_body()
+{
+       atf_check -s exit:0 -o inline:'3\n3\n' -e empty ${TEST_SH} -c \
+               'unset x; echo $(( x = 3 )); echo $x'
+       atf_check -s exit:0 -o inline:'3\n3\n' -e empty ${TEST_SH} -c \
+               'unset x; echo $((x=3)); echo $x'
+       atf_check -s exit:0 -o inline:'3\n3\n' -e empty ${TEST_SH} -c \
+               'x=5; echo $((x=3)); echo $x'
+
+       atf_check -s exit:0 -o inline:'3\n3\n' -e empty ${TEST_SH} -c \
+               'set +u;unset x; echo $((x+=3)); echo $x'
+       atf_check -s exit:0 -o inline:'3\n3\n' -e empty ${TEST_SH} -c \
+               'x=2; echo $((x+=1)); echo $x'
+       atf_check -s exit:0 -o inline:'3\n3\n' -e empty ${TEST_SH} -c \
+               'x=4; echo $((x-=1)); echo $x'
+       atf_check -s exit:0 -o inline:'3\n3\n' -e empty ${TEST_SH} -c \
+               'x=3; echo $((x*=1)); echo $x'
+       atf_check -s exit:0 -o inline:'3\n3\n' -e empty ${TEST_SH} -c \
+               'x=3; echo $((x/=1)); echo $x'
+       atf_check -s exit:0 -o inline:'3\n3\n' -e empty ${TEST_SH} -c \
+               'x=28; echo $((x%=5)); echo $x'
+       atf_check -s exit:0 -o inline:'3\n3\n' -e empty ${TEST_SH} -c \
+               'x=7; echo $((x&=3)); echo $x'
+       atf_check -s exit:0 -o inline:'3\n3\n' -e empty ${TEST_SH} -c \
+               'x=2; echo $((x|=1)); echo $x'
+       atf_check -s exit:0 -o inline:'3\n3\n' -e empty ${TEST_SH} -c \
+               'x=6; echo $((x^=5)); echo $x'
+       atf_check -s exit:0 -o inline:'3\n3\n' -e empty ${TEST_SH} -c \
+               'x=7; echo $((x>>=1)); echo $x'
+       atf_check -s exit:0 -o inline:'2\n2\n' -e empty ${TEST_SH} -c \
+               'x=1; echo $((x<<=1)); echo $x'
+
+       atf_check -s exit:0 -o inline:'2\n3\n' -e empty ${TEST_SH} -c \
+               'x=2; echo $(( (x+=1)-1 )); echo $x'
+       atf_check -s exit:0 -o inline:'4\n3\n' -e empty ${TEST_SH} -c \
+               'x=4; echo $(( (x-=1)+1 )); echo $x'
+
+       atf_check -s exit:0 -o inline:'36\n5 7\n' -e empty ${TEST_SH} -c \
+               'unset x y; echo $(( (x=5) * (y=7) + 1 )); echo $x $y'
+       atf_check -s exit:0 -o inline:'36\n5 7\n' -e empty ${TEST_SH} -c \
+               'x=99; y=17; echo $(( (x=5) * (y=7) + 1 )); echo $x $y'
+       atf_check -s exit:0 -o inline:'36\n5 7\n' -e empty ${TEST_SH} -c \
+               'x=4; y=9; echo $(( (x+=1) * (y-=2) + 1 )); echo $x $y'
+
+       atf_check -s exit:0 -o inline:'3\n3\n' -e empty ${TEST_SH} -c \
+               'set -u; unset x; echo $(( x = 3 )); echo $x'
+       atf_check -s not-exit:0 -o ignore -e not-empty ${TEST_SH} -c \
+               'set -u; unset x; echo $(( x + 3 )); echo $x'
+       atf_check -s not-exit:0 -o ignore -e not-empty ${TEST_SH} -c \
+               'set -u; unset x; echo $(( x+=3 )); echo $x'
+}
+
 atf_test_case arithmetic_fails
 arithmetic_fails_head()
 {
@@ -1030,6 +1087,6 @@
        # atf_add_test_case progressive                 # build up big expr
        # atf_add_test_case test_errors                 # erroneous input
        # atf_add_test_case torture             # hard stuff (if there is any)
-       # atf_add_test_case var_assign                  # assignment ops
+       atf_add_test_case var_assign                    # assignment ops
        # atf_add_test_case vulgarity   # truly evil inputs (syntax in vars...)
 }