[PATCH] Test the setting of "history size" via $HOME/.gdbinit

[Patrick Palka <patrick@parcs.ath.cx>]

Hi Pedro,

How does this look?

(When it is OK, I will squash this commit with the main commit before
pushing it.)

gdb/testsuite/ChangeLog:

	PR gdb/17820
	* gdb.base/gdbinit-history.exp: New test.
	* gdb.base/gdbinit-history/unlimited/.gdbinit: New file.
	* gdb.base/gdbinit-history/zero/.gdbinit: New file.
---
 gdb/testsuite/gdb.base/gdbinit-history.exp         | 41 ++++++++++++++++++++++
 .../gdb.base/gdbinit-history/unlimited/.gdbinit    |  1 +
 .../gdb.base/gdbinit-history/zero/.gdbinit         |  1 +
 3 files changed, 43 insertions(+)
 create mode 100644 gdb/testsuite/gdb.base/gdbinit-history.exp
 create mode 100644 gdb/testsuite/gdb.base/gdbinit-history/unlimited/.gdbinit
 create mode 100644 gdb/testsuite/gdb.base/gdbinit-history/zero/.gdbinit

diff --git a/gdb/testsuite/gdb.base/gdbinit-history.exp b/gdb/testsuite/gdb.base/gdbinit-history.exp
new file mode 100644
index 0000000..194f2df
--- /dev/null
+++ b/gdb/testsuite/gdb.base/gdbinit-history.exp
@@ -0,0 +1,41 @@
+# Copyright 2015 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/>.
+
+# This file is part of the gdb testsuite.
+
+# Test the setting of "history size" via $HOME/.gdbinit
+
+proc test_gdbinit_history_setting { home size } {
+    global env
+    global INTERNAL_GDBFLAGS
+    global srcdir
+    global subdir
+
+    set old_home $env(HOME)
+    set env(HOME) "$srcdir/$subdir/$home"
+    set saved_internal_gdbflags $INTERNAL_GDBFLAGS
+    set INTERNAL_GDBFLAGS [string map {"-nx" ""} $INTERNAL_GDBFLAGS]
+
+    gdb_exit
+    gdb_start
+
+    gdb_test "show history size" "The size of the command history is $size."
+
+    set INTERNAL_GDBFLAGS $saved_internal_gdbflags
+    set $env(HOME) $old_home
+}
+
+test_gdbinit_history_setting "gdbinit-history/unlimited" "unlimited"
+test_gdbinit_history_setting "gdbinit-history/zero" "0"
diff --git a/gdb/testsuite/gdb.base/gdbinit-history/unlimited/.gdbinit b/gdb/testsuite/gdb.base/gdbinit-history/unlimited/.gdbinit
new file mode 100644
index 0000000..6604d8f
--- /dev/null
+++ b/gdb/testsuite/gdb.base/gdbinit-history/unlimited/.gdbinit
@@ -0,0 +1 @@
+set history size unlimited
diff --git a/gdb/testsuite/gdb.base/gdbinit-history/zero/.gdbinit b/gdb/testsuite/gdb.base/gdbinit-history/zero/.gdbinit
new file mode 100644
index 0000000..7cd6b24
--- /dev/null
+++ b/gdb/testsuite/gdb.base/gdbinit-history/zero/.gdbinit
@@ -0,0 +1 @@
+set history size 0
-- 
2.4.0.194.gc518059