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-rw-r--r--tests/varenv10.sub59
1 files changed, 59 insertions, 0 deletions
diff --git a/tests/varenv10.sub b/tests/varenv10.sub
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+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+#
+# various tests of unset when applied to variables at different local scopes
+#
+# function unsetting variable at previous local scope, uncovering global
+
+inner()
+{
+ unset res
+ echo ${FUNCNAME}: ${res-res unset}
+ if [[ $1 == "set" ]]; then
+ res[0]="X"
+ res[1]="Y"
+ fi
+}
+
+outer()
+{
+ local res=
+ inner "$1"
+ echo ${FUNCNAME}: "res: ${res[@]}"
+}
+
+echo main: ${res-unset}
+outer set
+echo main: after first call: ${res-unset}
+outer dontset
+echo main: after second call: ${res-unset}
+
+unset -f outer inner
+unset res
+
+# local scope, unset variable at the same scope as local declaration
+func()
+{
+ typeset x=4
+
+ unset x
+ echo ${FUNCNAME}: ${x:-null or unset}
+}
+
+x=outside
+func
+echo after func: x = $x
+
+unset -f func
+unset x