From 1d5cace9db9aef76f26b2d7ba54bbb76443b00b2 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 5 May 2024 20:33:23 +0200
Subject: Adding upstream version 5.0.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 tests/nameref3.sub | 37 +++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)
 create mode 100644 tests/nameref3.sub

(limited to 'tests/nameref3.sub')

diff --git a/tests/nameref3.sub b/tests/nameref3.sub
new file mode 100644
index 0000000..5790291
--- /dev/null
+++ b/tests/nameref3.sub
@@ -0,0 +1,37 @@
+# nameref requires changes to unset
+bar=one
+typeset -n foo=bar
+
+# normal unset unsets only variable nameref references
+# need unset -n to unset nameref itself
+unset foo
+echo "expect <unset>"
+recho ${bar-unset}
+echo "expect <unset>"
+recho ${foo-unset}
+echo "expect <bar>"
+recho ${!foo}
+unset -n foo
+echo "expect <unset>"
+recho "${!foo-unset}"
+
+readonly bar=two
+typeset -n foo=bar
+
+unset foo	# this should fail because bar is readonly
+
+echo "expect <two>"
+echo ${bar-unset}
+echo "expect <two>"
+echo ${foo-unset}
+
+# one question is what happens when you unset the underlying variable
+qux=three
+typeset -n ref
+ref=qux
+
+echo $ref
+unset qux
+echo ${ref-unset}
+qux=four
+echo ${ref-unset}
-- 
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