[PATCH 4/8] Add TUI register window test

[Tom Tromey <tom@tromey.com>]

This adds a very simple test of the TUI register window.

gdb/testsuite/ChangeLog
2019-07-21  Tom Tromey  <tom@tromey.com>

	* gdb.tui/regs.exp: New file.
---
 gdb/testsuite/ChangeLog        |  4 +++
 gdb/testsuite/gdb.tui/regs.exp | 58 ++++++++++++++++++++++++++++++++++
 2 files changed, 62 insertions(+)
 create mode 100644 gdb/testsuite/gdb.tui/regs.exp

diff --git a/gdb/testsuite/gdb.tui/regs.exp b/gdb/testsuite/gdb.tui/regs.exp
new file mode 100644
index 00000000000..8fc466865c1
--- /dev/null
+++ b/gdb/testsuite/gdb.tui/regs.exp
@@ -0,0 +1,58 @@
+# Copyright 2019 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# Simple test of TUI register window.
+
+load_lib "tuiterm.exp"
+
+standard_testfile tui-layout.c
+
+if {[build_executable "failed to prepare" ${testfile} ${srcfile}] == -1} {
+    return -1
+}
+
+Term::clean_restart 24 80 $testfile
+
+if {![runto_main]} {
+    perror "test suppressed"
+    return
+}
+
+if {![Term::enter_tui]} {
+    unsupported "TUI not supported"
+}
+
+set text [Term::get_all_lines]
+if {[regexp ">|21 *return 0" $text]} {
+    pass "source at startup"
+} else {
+    Term::dump_screen
+    fail "source at startup"
+}
+
+Term::command "layout regs"
+Term::check_box "register box" 0 0 80 8
+# This check fails because the file name in the title overwrites the
+# box.
+setup_xfail *-*-*
+Term::check_box "source box in regs layout" 0 7 80 8
+
+set text [Term::get_line 1]
+# Just check for any register window content at all.
+if {[regexp "^|.*\[^ \].*|$" $text]} {
+    pass "any register contents"
+} else {
+    fail "any register contents"
+}
-- 
2.17.2