34772: add new test suite file for history; fix "read" usage in comptest

ChangeLog

@@ -1,3 +1,9 @@
+2015-03-23  Barton E. Schaefer  <schaefer@zsh.org>
+
+	* 34772: Test/W01history.ztst, Test/comptest: add new test
+	suite file for history; fix "read" usage in comptest for case
+	where there is no TTY
+
 2015-03-22  Peter Stephenson  <p.w.stephenson@ntlworld.com>
 
 	* 34759: Src/hist.c, Src/lex.c: safer implementation.

Test/W01history.ztst

@@ -0,0 +1,19 @@
+# Tests for BANG_HIST replacements
+
+%prep
+
+  [[ -t 0 ]] && print -u $ZTST_fd History tests write to /dev/tty
+
+%test
+
+  $ZTST_testdir/../Src/zsh -fis <<<'
+  echo foo bar
+  echo $(!!) again
+  echo more $( !! )' 2>/dev/null
+0:Regression test for history references in command substitution
+>foo bar
+>foo bar again
+>more foo bar again
+*?*
+F:Check that a history bug introduced by workers/34160 is working again.
+F:Discarded line of error output consumes prompts printed by "zsh -i".

Test/comptest

@@ -164,7 +164,7 @@ zletest () {
   for input; do
     # zpty_flush Before zletest
     # sleep for $KEYTIMEOUT
-    (( first++ )) && read -t 0.011 -k 1 < /dev/null
+    (( first++ )) && read -t 0.011 -u 0 -k 1 < /dev/null
     zpty -n -w zsh "$input"
   done
   zpty -n -w zsh $'\C-X'