summaryrefslogtreecommitdiffstats
path: root/tests/varenv10.sub
diff options
context:
space:
mode:
Diffstat (limited to 'tests/varenv10.sub')
-rw-r--r--tests/varenv10.sub47
1 files changed, 47 insertions, 0 deletions
diff --git a/tests/varenv10.sub b/tests/varenv10.sub
new file mode 100644
index 0000000..887cfd2
--- /dev/null
+++ b/tests/varenv10.sub
@@ -0,0 +1,47 @@
+#!/bin/bash
+#
+# 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