add testcases for of_oxm_bsn_lag_id
diff --git a/test_data/of13/action_set_field__bsn_lag_id.data b/test_data/of13/action_set_field__bsn_lag_id.data
new file mode 100644
index 0000000..eb57c05
--- /dev/null
+++ b/test_data/of13/action_set_field__bsn_lag_id.data
@@ -0,0 +1,11 @@
+-- binary
+00 19 # type
+00 10 # length
+00 03 02 04 # OXM header
+12 34 56 78 # OXM value
+00 00 00 00 # pad
+-- python
+ofp.action.set_field(field=ofp.oxm.bsn_lag_id(0x12345678))
+-- java
+OFOxms oxms = OFFactories.getFactory(OFVersion.OF_13).oxms();
+builder.setField(oxms.bsnLagId(U32.of(0x12345678)))
diff --git a/test_data/of13/oxm_bsn_lag_id.data b/test_data/of13/oxm_bsn_lag_id.data
new file mode 100644
index 0000000..73cfcf2
--- /dev/null
+++ b/test_data/of13/oxm_bsn_lag_id.data
@@ -0,0 +1,12 @@
+-- binary
+00 03 # class
+02 # type/masked
+04 # length
+12 34 56 78 # value
+-- python
+ofp.oxm.bsn_lag_id(0x12345678)
+-- c
+obj = of_oxm_bsn_lag_id_new(OF_VERSION_1_3);
+of_oxm_bsn_lag_id_value_set(obj, 0x12345678);
+-- java
+builder.setValue(U32.of(0x12345678))