HC2VPP-320: ensure at most one policy is configured per NAT instance

ReflexiveListReaderCustomizer is not used due to HONEYCOMB-437

Change-Id: I62755aaedd6e179b349ec47e4a304399c4fa18cd
Signed-off-by: Marek Gradzki <mgradzki@cisco.com>

1 files changed, 76 insertions, 0 deletions

diff --git a/nat/nat2vpp/src/test/java/io/fd/hc2vpp/nat/read/PolicyCustomizerTest.java b/nat/nat2vpp/src/test/java/io/fd/hc2vpp/nat/read/PolicyCustomizerTest.java
new file mode 100644
index 000000000..f1fe82ce1
--- /dev/null
+++ b/nat/nat2vpp/src/test/java/io/fd/hc2vpp/nat/read/PolicyCustomizerTest.java
@@ -0,0 +1,76 @@
+/*
+ * Copyright (c) 2018 Cisco and/or its affiliates.
+ *
+ * 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.
+ */
+
+package io.fd.hc2vpp.nat.read;
+
+import static io.fd.hc2vpp.nat.read.PolicyCustomizer.DEFAULT_POLICY_ID;
+import static org.hamcrest.core.IsCollectionContaining.hasItems;
+import static org.junit.Assert.assertThat;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.verifyZeroInteractions;
+
+import io.fd.hc2vpp.common.test.read.ListReaderCustomizerTest;
+import io.fd.hc2vpp.nat.NatIds;
+import io.fd.honeycomb.translate.read.ReadFailedException;
+import io.fd.honeycomb.translate.spi.read.ReaderCustomizer;
+import org.junit.Test;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.nat.rev180223.nat.Instances;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.nat.rev180223.nat.instances.Instance;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.nat.rev180223.nat.instances.InstanceBuilder;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.nat.rev180223.nat.instances.InstanceKey;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.nat.rev180223.nat.instances.instance.Policy;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.nat.rev180223.nat.instances.instance.PolicyBuilder;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.nat.rev180223.nat.instances.instance.PolicyKey;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+
+public class PolicyCustomizerTest extends ListReaderCustomizerTest<Policy, PolicyKey, PolicyBuilder> {
+
+    private static final InstanceIdentifier<Instance> INSTANCE_ID = InstanceIdentifier.create(Instances.class)
+        .child(Instance.class, new InstanceKey(NatInstanceCustomizer.DEFAULT_VRF_ID));
+
+    public PolicyCustomizerTest() {
+        super(Policy.class, InstanceBuilder.class);
+    }
+
+    @Override
+    protected ReaderCustomizer<Policy, PolicyBuilder> initCustomizer() {
+        return new PolicyCustomizer();
+    }
+
+    @Test
+    public void testGetAllIds() throws ReadFailedException {
+        assertThat(getCustomizer().getAllIds(NatIds.POLICY_ID, ctx), hasItems(new PolicyKey(0L)));
+    }
+
+    @Test
+    public void testReadDefault() throws ReadFailedException {
+        final PolicyBuilder builder = mock(PolicyBuilder.class);
+        getCustomizer().readCurrentAttributes(getId(DEFAULT_POLICY_ID), builder, ctx);
+        verify(builder).setId(DEFAULT_POLICY_ID);
+    }
+
+    @Test
+    public void testReadNonDefault() throws ReadFailedException {
+        final PolicyBuilder builder = mock(PolicyBuilder.class);
+        getCustomizer().readCurrentAttributes(getId(1L), builder, ctx);
+        verifyZeroInteractions(builder);
+    }
+
+    private static InstanceIdentifier<Policy> getId(final long id) {
+        return INSTANCE_ID.child(Policy.class, new PolicyKey(id));
+    }
+}
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