test/system: Test that networking works

Note that 'run --keep-empty-lines' counts the trailing newline on the
last line as a separate line.

https://github.com/containers/toolbox/pull/1325

meson.build

@@ -111,5 +111,6 @@ subdir('data')
 subdir('doc')
 subdir('profile.d')
 subdir('src')
+subdir('test')
 
 meson.add_install_script('meson_post_install.py')

test/meson.build

@@ -0,0 +1 @@
+subdir('system')

test/system/203-network.bats

@@ -0,0 +1,156 @@
+# shellcheck shell=bats
+#
+# Copyright © 2023 Red Hat, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+load 'libs/bats-support/load'
+load 'libs/bats-assert/load'
+load 'libs/helpers'
+
+setup() {
+  bats_require_minimum_version 1.7.0
+  _setup_environment
+  cleanup_containers
+}
+
+teardown() {
+  cleanup_containers
+}
+
+@test "network: no namespace" {
+  local ns_host
+  ns_host=$(readlink /proc/$$/ns/net)
+
+  create_default_container
+
+  run --keep-empty-lines --separate-stderr "$TOOLBOX" run sh -c 'readlink /proc/$$/ns/net'
+
+  assert_success
+  assert_line --index 0 "$ns_host"
+  assert [ ${#lines[@]} -eq 2 ]
+
+  # shellcheck disable=SC2154
+  assert [ ${#stderr_lines[@]} -eq 0 ]
+}
+
+@test "network: ping(8) inside the default container" {
+  create_default_container
+
+  run --keep-empty-lines --separate-stderr "$TOOLBOX" run ping -c 2 f.root-servers.net
+
+  if [ "$status" -eq 1 ]; then
+    skip "lost packets"
+  fi
+
+  assert_success
+  assert [ ${#lines[@]} -gt 0 ]
+
+  # shellcheck disable=SC2154
+  assert [ ${#stderr_lines[@]} -eq 0 ]
+}
+
+@test "network: ping(8) inside Arch Linux" {
+  create_distro_container arch latest arch-toolbox-latest
+
+  run --keep-empty-lines --separate-stderr "$TOOLBOX" run --distro arch ping -c 2 f.root-servers.net
+
+  if [ "$status" -eq 1 ]; then
+    skip "lost packets"
+  fi
+
+  assert_success
+  assert [ ${#lines[@]} -gt 0 ]
+
+  # shellcheck disable=SC2154
+  assert [ ${#stderr_lines[@]} -eq 0 ]
+}
+
+@test "network: ping(8) inside Fedora 34" {
+  create_distro_container fedora 34 fedora-toolbox-34
+
+  run --keep-empty-lines --separate-stderr "$TOOLBOX" run --distro fedora --release 34 ping -c 2 f.root-servers.net
+
+  if [ "$status" -eq 1 ]; then
+    skip "lost packets"
+  fi
+
+  assert_success
+  assert [ ${#lines[@]} -gt 0 ]
+
+  # shellcheck disable=SC2154
+  assert [ ${#stderr_lines[@]} -eq 0 ]
+}
+
+@test "network: ping(8) inside RHEL 8.7" {
+  create_distro_container rhel 8.7 rhel-toolbox-8.7
+
+  run --keep-empty-lines --separate-stderr "$TOOLBOX" run --distro rhel --release 8.7 ping -c 2 f.root-servers.net
+
+  if [ "$status" -eq 1 ]; then
+    skip "lost packets"
+  fi
+
+  assert_success
+  assert [ ${#lines[@]} -gt 0 ]
+
+  # shellcheck disable=SC2154
+  assert [ ${#stderr_lines[@]} -eq 0 ]
+}
+
+@test "network: ping(8) inside Ubuntu 16.04" {
+  create_distro_container ubuntu 16.04 ubuntu-toolbox-16.04
+
+  run -2 --keep-empty-lines --separate-stderr "$TOOLBOX" run --distro ubuntu --release 16.04 ping -c 2 f.root-servers.net
+
+  assert_failure
+  assert [ ${#lines[@]} -eq 0 ]
+
+  # shellcheck disable=SC2154
+  assert [ ${#stderr_lines[@]} -gt 0 ]
+
+  skip "doesn't use ICMP Echo sockets"
+}
+
+@test "network: ping(8) inside Ubuntu 18.04" {
+  create_distro_container ubuntu 18.04 ubuntu-toolbox-18.04
+
+  run --keep-empty-lines --separate-stderr "$TOOLBOX" run --distro ubuntu --release 18.04 ping -c 2 f.root-servers.net
+
+  if [ "$status" -eq 1 ]; then
+    skip "lost packets"
+  fi
+
+  assert_success
+  assert [ ${#lines[@]} -gt 0 ]
+
+  # shellcheck disable=SC2154
+  assert [ ${#stderr_lines[@]} -eq 0 ]
+}
+
+@test "network: ping(8) inside Ubuntu 20.04" {
+  create_distro_container ubuntu 20.04 ubuntu-toolbox-20.04
+
+  run --keep-empty-lines --separate-stderr "$TOOLBOX" run --distro ubuntu --release 20.04 ping -c 2 f.root-servers.net
+
+  if [ "$status" -eq 1 ]; then
+    skip "lost packets"
+  fi
+
+  assert_success
+  assert [ ${#lines[@]} -gt 0 ]
+
+  # shellcheck disable=SC2154
+  assert [ ${#stderr_lines[@]} -eq 0 ]
+}

test/system/meson.build

@@ -0,0 +1,7 @@
+test_system = files(
+  '203-network.bats',
+)
+
+if shellcheck.found()
+  test('shellcheck test/system', shellcheck, args: [test_system])
+endif