1 files changed, 69 insertions, 0 deletions
diff --git a/gdb/testsuite/gdb.python/py-connection.exp b/gdb/testsuite/gdb.python/py-connection.exp
new file mode 100644
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+++ b/gdb/testsuite/gdb.python/py-connection.exp
@@ -0,0 +1,69 @@
+# Copyright (C) 2021 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 for testing the gdb.TargetConnection API.  This API is
+# already tested in gdb.multi/multi-target-info-inferiors.exp and
+# gdb.python/py-inferior.exp, this file just covers some edge cases
+# that are not tested in other places.
+
+load_lib gdb-python.exp
+
+standard_testfile
+
+if { [prepare_for_testing "failed to prepare" ${testfile} ${srcfile}] } {
+    return -1
+}
+
+# Skip all tests if Python scripting is not enabled.
+if { [skip_python_tests] } { continue }
+
+if ![runto_main] then {
+    return 0
+}
+
+# Create a gdb.TargetConnection object and check it is initially
+# valid.
+gdb_test_no_output "python conn = gdb.selected_inferior().connection"
+gdb_test "python print(conn)" \
+    "<gdb.TargetConnection num=1, what=\"\[^\"\]+\">" \
+    "print gdb.TargetConnection while it is still valid"
+gdb_test "python print(conn.is_valid())" "True" "is_valid returns True"
+
+# Get the connection again, and ensure we get the exact same object.
+gdb_test_no_output "python conn2 = gdb.selected_inferior().connection"
+gdb_test "python print('Same object: %s' % (conn is conn2))" "True"
+
+# Now invalidate the connection, and ensure that the is_valid method
+# starts to return False.
+gdb_test "info connections" "\r\n\\* 1 .*" \
+    "info connections while the connection is still around"
+gdb_test "disconnect" "" "kill the inferior" \
+    "A program is being debugged already\\.  Kill it\\? .*y or n. $" "y"
+gdb_test "info connections" "No connections\\." \
+    "info connections now all the connections have gone"
+gdb_test "python print(conn)" "<gdb.TargetConnection \\(invalid\\)>" \
+    "print gdb.TargetConnection now its invalid"
+gdb_test "python print(conn.is_valid())" "False" "is_valid returns False"
+
+# Now check that accessing properties of the invalid connection cases
+# an error.
+gdb_test "python print(conn.num)" \
+    "RuntimeError: Connection no longer exists\\.\r\n.*"
+gdb_test "python print(conn.type)" \
+    "RuntimeError: Connection no longer exists\\.\r\n.*"
+gdb_test "python print(conn.description)" \
+    "RuntimeError: Connection no longer exists\\.\r\n.*"
+gdb_test "python print(conn.details)" \
+    "RuntimeError: Connection no longer exists\\.\r\n.*"