[integration] add testcases for `runc delete` command

this patch add two testcases for the `runc delete` with
multi-containers. see : https://github.com/opencontainers/runc/pull/1053

Signed-off-by: Wang Long <long.wanglong@huawei.com>

tests/integration/delete.bats

@@ -48,3 +48,62 @@ function teardown() {
   runc state test_busybox
   [ "$status" -ne 0 ]
 }
+
+@test "run delete with multi-containers" {
+  # create busybox1 detached
+  runc create --console /dev/pts/ptmx test_busybox1
+  [ "$status" -eq 0 ]
+
+  testcontainer test_busybox1 created
+
+  # run busybox2 detached
+  runc run -d --console /dev/pts/ptmx test_busybox2
+  [ "$status" -eq 0 ]
+
+  wait_for_container 15 1 test_busybox2
+  testcontainer test_busybox2 running
+
+  # delete both test_busybox1 and test_busybox2 container
+  runc delete test_busybox1 test_busybox2
+
+  runc state test_busybox1
+  [ "$status" -ne 0 ]
+
+  runc state test_busybox2
+  [ "$status" -eq 0 ]
+
+  runc kill test_busybox2 KILL
+  # wait for busybox2 to be in the destroyed state
+  retry 10 1 eval "__runc state test_busybox2 | grep -q 'stopped'"
+
+  # delete test_busybox2
+  runc delete test_busybox2
+
+  runc state test_busybox2
+  [ "$status" -ne 0 ]
+}
+
+
+@test "run delete --force with multi-containers" {
+  # create busybox1 detached
+  runc create --console /dev/pts/ptmx test_busybox1
+  [ "$status" -eq 0 ]
+
+  testcontainer test_busybox1 created
+
+  # run busybox2 detached
+  runc run -d --console /dev/pts/ptmx test_busybox2
+  [ "$status" -eq 0 ]
+
+  wait_for_container 15 1 test_busybox2
+  testcontainer test_busybox2 running
+
+  # delete both test_busybox1 and test_busybox2 container
+  runc delete --force  test_busybox1 test_busybox2
+
+  runc state test_busybox1
+  [ "$status" -ne 0 ]
+
+  runc state test_busybox2
+  [ "$status" -ne 0 ]
+}