diff --git a/src/test/java/org/onosproject/segmentrouting/config/PwaasConfigTest.java b/src/test/java/org/onosproject/segmentrouting/config/PwaasConfigTest.java
new file mode 100644
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+++ b/src/test/java/org/onosproject/segmentrouting/config/PwaasConfigTest.java
@@ -0,0 +1,190 @@
+/*
+ * Copyright 2016-present Open Networking Laboratory
+ *
+ * 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 org.onosproject.segmentrouting.config;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import org.junit.Before;
+import org.junit.Test;
+import org.onlab.packet.MplsLabel;
+import org.onlab.packet.VlanId;
+import org.onosproject.TestApplicationId;
+import org.onosproject.core.ApplicationId;
+import org.onosproject.net.ConnectPoint;
+import org.onosproject.net.config.Config;
+import org.onosproject.net.config.ConfigApplyDelegate;
+import org.onosproject.segmentrouting.SegmentRoutingManager;
+import org.onosproject.segmentrouting.pwaas.DefaultL2Tunnel;
+import org.onosproject.segmentrouting.pwaas.DefaultL2TunnelDescription;
+import org.onosproject.segmentrouting.pwaas.DefaultL2TunnelPolicy;
+import org.onosproject.segmentrouting.pwaas.L2Mode;
+
+import java.io.InputStream;
+import java.util.Set;
+
+import static org.hamcrest.Matchers.is;
+import static org.junit.Assert.*;
+
+/**
+ * Unit tests for class {@link PwaasConfig}.
+ */
+public class PwaasConfigTest {
+
+    private static final String TUNNEL_ID_1 = "1";
+    private static final String TUNNEL_ID_2 = "20";
+    private static final String NOT_PRESENT_TUNNEL_ID = "2";
+    private static final ConnectPoint INGRESS_1 = ConnectPoint.deviceConnectPoint("of:0000000000000001/1");
+    private static final ConnectPoint INGRESS_2 = ConnectPoint.deviceConnectPoint("of:0000000000000002/1");
+    private static final ConnectPoint EGRESS_1 = ConnectPoint.deviceConnectPoint("of:0000000000000011/1");
+    private static final ConnectPoint EGRESS_2 = ConnectPoint.deviceConnectPoint("of:0000000000000012/1");
+    private static final VlanId INGRESS_INNER_TAG_1 = VlanId.vlanId("10");
+    private static final VlanId INGRESS_INNER_TAG_2 = VlanId.vlanId("100");
+    private static final VlanId INGRESS_OUTER_TAG_1 = VlanId.vlanId("20");
+    private static final VlanId INGRESS_OUTER_TAG_2 = VlanId.vlanId("200");
+    private static final VlanId EGRESS_INNER_TAG_1 = VlanId.vlanId("11");
+    private static final VlanId EGRESS_INNER_TAG_2 = VlanId.vlanId("110");
+    private static final VlanId EGRESS_OUTER_TAG_1 = VlanId.vlanId("21");
+    private static final VlanId EGRESS_OUTER_TAG_2 = VlanId.vlanId("210");
+    private static final String MODE_1 = "RAW";
+    private static final String MODE_2 = "TAGGED";
+    private static final boolean ALL_VLAN_1 = true;
+    private static final boolean ALL_VLAN_2 = false;
+    private static final VlanId SD_TAG_1 = VlanId.vlanId("40");
+    private static final VlanId SD_TAG_2 = VlanId.NONE;
+    private static final MplsLabel PW_LABEL_1 = MplsLabel.mplsLabel("255");
+    private static final MplsLabel PW_LABEL_2 = MplsLabel.mplsLabel("4095");
+
+    private PwaasConfig config;
+    private PwaasConfig invalidConfig;
+
+    @Before
+    public void setUp() throws Exception {
+        InputStream jsonStream = PwaasConfig.class
+                .getResourceAsStream("/pwaas.json");
+        InputStream invalidJsonStream = PwaasConfig.class
+                .getResourceAsStream("/pwaas-invalid.json");
+
+        String key = SegmentRoutingManager.APP_NAME;
+        ApplicationId subject = new TestApplicationId(key);
+        ObjectMapper mapper = new ObjectMapper();
+        JsonNode jsonNode = mapper.readTree(jsonStream);
+        JsonNode invalidJsonNode = mapper.readTree(invalidJsonStream);
+        ConfigApplyDelegate delegate = new MockDelegate();
+
+        config = new PwaasConfig();
+        config.init(subject, key, jsonNode, mapper, delegate);
+        invalidConfig = new PwaasConfig();
+        invalidConfig.init(subject, key, invalidJsonNode, mapper, delegate);
+    }
+
+    /**
+     * Tests config validity.
+     */
+    @Test
+    public void testIsValid() {
+        assertTrue(config.isValid());
+        assertFalse(invalidConfig.isValid());
+    }
+
+    /**
+     * Tests getPwIds.
+     */
+    @Test
+    public void testGetPwIds() {
+        Set<Long> pwIds = config.getPwIds();
+        assertThat(pwIds.size(), is(2));
+        assertTrue(pwIds.contains(Long.parseLong(TUNNEL_ID_1)));
+        assertTrue(pwIds.contains(Long.parseLong(TUNNEL_ID_2)));
+        assertFalse(pwIds.contains(Long.parseLong(NOT_PRESENT_TUNNEL_ID)));
+    }
+
+    /**
+     * Tests getPwDescription.
+     */
+    @Test
+    public void testGetPwDescription() {
+        DefaultL2TunnelDescription l2TunnelDescription = null;
+
+        DefaultL2Tunnel l2Tunnel = new DefaultL2Tunnel(
+            L2Mode.valueOf(MODE_1),
+            SD_TAG_1,
+            Long.parseLong(TUNNEL_ID_1),
+            PW_LABEL_1
+        );
+        DefaultL2TunnelPolicy l2TunnelPolicy = new DefaultL2TunnelPolicy(
+                Long.parseLong(TUNNEL_ID_1),
+                INGRESS_1,
+                INGRESS_INNER_TAG_1,
+                INGRESS_OUTER_TAG_1,
+                EGRESS_1,
+                EGRESS_INNER_TAG_1,
+                EGRESS_OUTER_TAG_1,
+                ALL_VLAN_1
+        );
+        l2TunnelDescription = config.getPwDescription(Long.parseLong(TUNNEL_ID_1));
+        assertThat(l2TunnelDescription.l2Tunnel().pwMode(), is(l2Tunnel.pwMode()));
+        assertThat(l2TunnelDescription.l2Tunnel().sdTag(), is(l2Tunnel.sdTag()));
+        assertThat(l2TunnelDescription.l2Tunnel().tunnelId(), is(l2Tunnel.tunnelId()));
+        assertThat(l2TunnelDescription.l2Tunnel().pwLabel(), is(l2Tunnel.pwLabel()));
+        assertThat(l2TunnelDescription.l2TunnelPolicy().tunnelId(), is(l2TunnelPolicy.tunnelId()));
+        assertThat(l2TunnelDescription.l2TunnelPolicy().cP1InnerTag(), is(l2TunnelPolicy.cP1InnerTag()));
+        assertThat(l2TunnelDescription.l2TunnelPolicy().cP1OuterTag(), is(l2TunnelPolicy.cP1OuterTag()));
+        assertThat(l2TunnelDescription.l2TunnelPolicy().cP2InnerTag(), is(l2TunnelPolicy.cP2InnerTag()));
+        assertThat(l2TunnelDescription.l2TunnelPolicy().cP2OuterTag(), is(l2TunnelPolicy.cP2OuterTag()));
+        assertThat(l2TunnelDescription.l2TunnelPolicy().cP1(), is(l2TunnelPolicy.cP1()));
+        assertThat(l2TunnelDescription.l2TunnelPolicy().cP2(), is(l2TunnelPolicy.cP2()));
+        assertThat(l2TunnelDescription.l2TunnelPolicy().isAllVlan(), is(l2TunnelPolicy.isAllVlan()));
+
+        l2Tunnel = new DefaultL2Tunnel(
+                L2Mode.valueOf(MODE_2),
+                SD_TAG_2,
+                Long.parseLong(TUNNEL_ID_2),
+                PW_LABEL_2
+        );
+        l2TunnelPolicy = new DefaultL2TunnelPolicy(
+                Long.parseLong(TUNNEL_ID_2),
+                INGRESS_2,
+                INGRESS_INNER_TAG_2,
+                INGRESS_OUTER_TAG_2,
+                EGRESS_2,
+                EGRESS_INNER_TAG_2,
+                EGRESS_OUTER_TAG_2,
+                ALL_VLAN_2
+        );
+        l2TunnelDescription = config.getPwDescription(Long.parseLong(TUNNEL_ID_2));
+        assertThat(l2TunnelDescription.l2Tunnel().pwMode(), is(l2Tunnel.pwMode()));
+        assertThat(l2TunnelDescription.l2Tunnel().sdTag(), is(l2Tunnel.sdTag()));
+        assertThat(l2TunnelDescription.l2Tunnel().tunnelId(), is(l2Tunnel.tunnelId()));
+        assertThat(l2TunnelDescription.l2Tunnel().pwLabel(), is(l2Tunnel.pwLabel()));
+        assertThat(l2TunnelDescription.l2TunnelPolicy().tunnelId(), is(l2TunnelPolicy.tunnelId()));
+        assertThat(l2TunnelDescription.l2TunnelPolicy().cP1InnerTag(), is(l2TunnelPolicy.cP1InnerTag()));
+        assertThat(l2TunnelDescription.l2TunnelPolicy().cP1OuterTag(), is(l2TunnelPolicy.cP1OuterTag()));
+        assertThat(l2TunnelDescription.l2TunnelPolicy().cP2OuterTag(), is(l2TunnelPolicy.cP2OuterTag()));
+        assertThat(l2TunnelDescription.l2TunnelPolicy().cP2OuterTag(), is(l2TunnelPolicy.cP2OuterTag()));
+        assertThat(l2TunnelDescription.l2TunnelPolicy().cP1(), is(l2TunnelPolicy.cP1()));
+        assertThat(l2TunnelDescription.l2TunnelPolicy().cP2(), is(l2TunnelPolicy.cP2()));
+        assertThat(l2TunnelDescription.l2TunnelPolicy().isAllVlan(), is(l2TunnelPolicy.isAllVlan()));
+
+    }
+
+    private class MockDelegate implements ConfigApplyDelegate {
+        @Override
+        public void onApply(Config config) {
+        }
+    }
+
+}