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-rw-r--r--shell/hush_test/hush-vars/var_preserved.right4
-rwxr-xr-xshell/hush_test/hush-vars/var_preserved.tests16
2 files changed, 20 insertions, 0 deletions
diff --git a/shell/hush_test/hush-vars/var_preserved.right b/shell/hush_test/hush-vars/var_preserved.right
new file mode 100644
index 0000000..b0def4b
--- /dev/null
+++ b/shell/hush_test/hush-vars/var_preserved.right
@@ -0,0 +1,4 @@
+a=a
+a=a
+a=a
+OK
diff --git a/shell/hush_test/hush-vars/var_preserved.tests b/shell/hush_test/hush-vars/var_preserved.tests
new file mode 100755
index 0000000..132d387
--- /dev/null
+++ b/shell/hush_test/hush-vars/var_preserved.tests
@@ -0,0 +1,16 @@
+export a=a
+
+# external program
+a=b /bin/true
+env | grep ^a=
+
+# builtin
+a=b true
+env | grep ^a=
+
+# exec with redirection only
+# in bash, this leaks!
+a=b exec 1>&1
+env | grep ^a=
+
+echo OK