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-rw-r--r--bin/cash/tests/expansion/arith5.017
1 files changed, 17 insertions, 0 deletions
diff --git a/bin/cash/tests/expansion/arith5.0 b/bin/cash/tests/expansion/arith5.0
new file mode 100644
index 00000000..4ec65a0c
--- /dev/null
+++ b/bin/cash/tests/expansion/arith5.0
@@ -0,0 +1,17 @@
+# $FreeBSD: releng/12.0/bin/sh/tests/expansion/arith5.0 206168 2010-04-04 16:48:33Z jilles $
+
+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))