[ONOS-7683] Add missing toString methods for telemetry configs

Change-Id: Iff17acf7b5698669ae8f753bce5a402bad06fd5c
diff --git a/apps/openstacktelemetry/app/src/test/java/org/onosproject/openstacktelemetry/config/DefaultKafkaTelemetryConfigTest.java b/apps/openstacktelemetry/app/src/test/java/org/onosproject/openstacktelemetry/config/DefaultKafkaTelemetryConfigTest.java
new file mode 100644
index 0000000..6608d7a
--- /dev/null
+++ b/apps/openstacktelemetry/app/src/test/java/org/onosproject/openstacktelemetry/config/DefaultKafkaTelemetryConfigTest.java
@@ -0,0 +1,138 @@
+/*
+ * Copyright 2018-present Open Networking Foundation
+ *
+ * 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.openstacktelemetry.config;
+
+import com.google.common.collect.ImmutableMap;
+import com.google.common.testing.EqualsTester;
+import org.junit.Before;
+import org.junit.Test;
+import org.onosproject.openstacktelemetry.api.config.KafkaTelemetryConfig;
+
+import java.util.Map;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.is;
+
+public final class DefaultKafkaTelemetryConfigTest {
+
+    private static final String IP_ADDRESS_1 = "10.10.10.1";
+    private static final String IP_ADDRESS_2 = "20.20.20.1";
+
+    private static final int PORT_1 = 80;
+    private static final int PORT_2 = 8080;
+
+    private static final int RETRIES_1 = 1;
+    private static final int RETRIES_2 = 2;
+
+    private static final int BATCH_SIZE_1 = 100;
+    private static final int BATCH_SIZE_2 = 200;
+
+    private static final int MEMORY_BUFFER_1 = 1000;
+    private static final int MEMORY_BUFFER_2 = 2000;
+
+    private static final String REQUIRED_ACKS_1 = "all";
+    private static final String REQUIRED_ACKS_2 = "none";
+
+    private static final int LINGER_MS_1 = 1;
+    private static final int LINGER_MS_2 = 2;
+
+    private static final String KEY_SERIALIZER_1 = "keyserializer1";
+    private static final String KEY_SERIALIZER_2 = "keyserializer2";
+    private static final String VALUE_SERIALIZER_1 = "valueserializer1";
+    private static final String VALUE_SERIALIZER_2 = "valueserializer2";
+
+    private static final Map<String, Object> CONFIG_MAP_1 =
+            ImmutableMap.of("key1", "value1");
+    private static final Map<String, Object> CONFIG_MAP_2 =
+            ImmutableMap.of("key2", "value2");
+
+    private KafkaTelemetryConfig config1;
+    private KafkaTelemetryConfig sameAsConfig1;
+    private KafkaTelemetryConfig config2;
+
+    @Before
+    public void setup() {
+
+        KafkaTelemetryConfig.Builder builder1 =
+                new DefaultKafkaTelemetryConfig.DefaultBuilder();
+        KafkaTelemetryConfig.Builder builder2 =
+                new DefaultKafkaTelemetryConfig.DefaultBuilder();
+        KafkaTelemetryConfig.Builder builder3 =
+                new DefaultKafkaTelemetryConfig.DefaultBuilder();
+
+        config1 = builder1
+                .withAddress(IP_ADDRESS_1)
+                .withPort(PORT_1)
+                .withRetries(RETRIES_1)
+                .withBatchSize(BATCH_SIZE_1)
+                .withMemoryBuffer(MEMORY_BUFFER_1)
+                .withRequiredAcks(REQUIRED_ACKS_1)
+                .withLingerMs(LINGER_MS_1)
+                .withKeySerializer(KEY_SERIALIZER_1)
+                .withValueSerializer(VALUE_SERIALIZER_1)
+                .withConfigMap(CONFIG_MAP_1)
+                .build();
+
+        sameAsConfig1 = builder2
+                .withAddress(IP_ADDRESS_1)
+                .withPort(PORT_1)
+                .withRetries(RETRIES_1)
+                .withBatchSize(BATCH_SIZE_1)
+                .withMemoryBuffer(MEMORY_BUFFER_1)
+                .withRequiredAcks(REQUIRED_ACKS_1)
+                .withLingerMs(LINGER_MS_1)
+                .withKeySerializer(KEY_SERIALIZER_1)
+                .withValueSerializer(VALUE_SERIALIZER_1)
+                .withConfigMap(CONFIG_MAP_1)
+                .build();
+
+        config2 = builder3
+                .withAddress(IP_ADDRESS_2)
+                .withPort(PORT_2)
+                .withRetries(RETRIES_2)
+                .withBatchSize(BATCH_SIZE_2)
+                .withMemoryBuffer(MEMORY_BUFFER_2)
+                .withRequiredAcks(REQUIRED_ACKS_2)
+                .withLingerMs(LINGER_MS_2)
+                .withKeySerializer(KEY_SERIALIZER_2)
+                .withValueSerializer(VALUE_SERIALIZER_2)
+                .withConfigMap(CONFIG_MAP_2)
+                .build();
+    }
+
+    @Test
+    public void testEquality() {
+        new EqualsTester()
+                .addEqualityGroup(config1, sameAsConfig1)
+                .addEqualityGroup(config2).testEquals();
+    }
+
+    @Test
+    public void testConstruction() {
+        KafkaTelemetryConfig config = config1;
+
+        assertThat(config.address(), is(IP_ADDRESS_1));
+        assertThat(config.port(), is(PORT_1));
+        assertThat(config.retries(), is(RETRIES_1));
+        assertThat(config.batchSize(), is(BATCH_SIZE_1));
+        assertThat(config.memoryBuffer(), is(MEMORY_BUFFER_1));
+        assertThat(config.requiredAcks(), is(REQUIRED_ACKS_1));
+        assertThat(config.lingerMs(), is(LINGER_MS_1));
+        assertThat(config.keySerializer(), is(KEY_SERIALIZER_1));
+        assertThat(config.valueSerializer(), is(VALUE_SERIALIZER_1));
+        assertThat(config.configMap(), is(CONFIG_MAP_1));
+    }
+}