From a2c579050fbf40eb9192f043e901e6b2eff3ab50 Mon Sep 17 00:00:00 2001
From: Peter Stephenson <pws@zsh.org>
Date: Wed, 15 Apr 2015 09:44:19 +0100
Subject: 34887: Fix POSIX_BUILTINS with assignment.

In the form
  var=val command special-builtin-or-func
the var is restored after execution, unlike the case where "command"
is absent.

Clear up case in code that handles this.

Add tests.
---
 Test/E01options.ztst | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'Test')

diff --git a/Test/E01options.ztst b/Test/E01options.ztst
index 32135344f..5c453c80b 100644
--- a/Test/E01options.ztst
+++ b/Test/E01options.ztst
@@ -783,6 +783,19 @@
 >print is a shell builtin
 ?(eval):8: command not found: print
 
+  # With non-special command: original value restored
+  # With special builtin: new value kept
+  # With special builtin preceeded by "command": original value restored.
+  (setopt posixbuiltins
+  FOO=val0
+  FOO=val1 true; echo $FOO
+  FOO=val2 times 1>/dev/null 2>&1; echo $FOO
+  FOO=val3 command times 1>/dev/null 2>&1; echo $FOO)
+0:POSIX_BUILTINS and restoring variables
+>val0
+>val2
+>val2
+
 # PRINTEXITVALUE only works if shell input is coming from standard input.
 # Goodness only knows why.
   $ZTST_testdir/../Src/zsh -f <<<'
-- 
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