svn commit: r206168 - head/tools/regression/bin/sh/expansion
Jilles Tjoelker
jilles at FreeBSD.org
Sun Apr 4 16:48:33 UTC 2010
Author: jilles
Date: Sun Apr 4 16:48:33 2010
New Revision: 206168
URL: http://svn.freebsd.org/changeset/base/206168
Log:
sh: Add test for nested arithmetic substitution.
Pre-r206145 sh changes nested arithmetic substitution to parentheses, which
is not always correct, as exercised by this test.
Added:
head/tools/regression/bin/sh/expansion/arith5.0 (contents, props changed)
Added: head/tools/regression/bin/sh/expansion/arith5.0
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/tools/regression/bin/sh/expansion/arith5.0 Sun Apr 4 16:48:33 2010 (r206168)
@@ -0,0 +1,17 @@
+# $FreeBSD$
+
+failures=0
+
+check() {
+ if [ "$2" != "$3" ]; then
+ failures=$((failures+1))
+ echo "For $1, expected $3 actual $2"
+ fi
+}
+
+unset a
+check '$((1+${a:-$((7+2))}))' "$((1+${a:-$((7+2))}))" 10
+check '$((1+${a:=$((2+2))}))' "$((1+${a:=$((2+2))}))" 5
+check '$a' "$a" 4
+
+exit $((failures != 0))
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