New test.

regress/has-session-return.sh

@@ -0,0 +1,19 @@
+#!/bin/sh
+
+# 971
+# has-session should return 1 on error
+
+PATH=/bin:/usr/bin
+TERM=screen
+
+[ -z "$TEST_TMUX" ] && TEST_TMUX=$(readlink -f ../tmux)
+TMUX="$TEST_TMUX -Ltest"
+$TMUX kill-server 2>/dev/null
+
+$TMUX -f/dev/null has -tfoo </dev/null 2>/dev/null && exit 1
+$TMUX -f/dev/null start\; has -tfoo </dev/null 2>/dev/null && exit 1
+$TMUX -f/dev/null new -d\; has -tfoo </dev/null 2>/dev/null && exit 1
+$TMUX -f/dev/null new -dsfoo\; has -tfoo </dev/null 2>/dev/null || exit 1
+$TMUX kill-server 2>/dev/null
+
+exit 0