Implement message counting in consumer

Issue-ID: DCAEGEN2-1635
Change-Id: I2666de7bad27052d9cefa0f687ad0772d4c9a95d
Signed-off-by: kjaniak <kornel.janiak@nokia.com>

1 files changed, 48 insertions, 0 deletions

diff --git a/sources/hv-collector-kafka-consumer/src/test/kotlin/org/onap/dcae/collectors/veshv/kafkaconsumer/state/OffsetConsumerTest.kt b/sources/hv-collector-kafka-consumer/src/test/kotlin/org/onap/dcae/collectors/veshv/kafkaconsumer/state/OffsetConsumerTest.kt
new file mode 100644
index 00000000..6fb42d81
--- /dev/null
+++ b/sources/hv-collector-kafka-consumer/src/test/kotlin/org/onap/dcae/collectors/veshv/kafkaconsumer/state/OffsetConsumerTest.kt
@@ -0,0 +1,48 @@
+/*
+ * ============LICENSE_START=======================================================
+ * dcaegen2-collectors-veshv
+ * ================================================================================
+ * Copyright (C) 2019 NOKIA
+ * ================================================================================
+ * 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.
+ * ============LICENSE_END=========================================================
+ */
+package org.onap.dcae.collectors.veshv.kafkaconsumer.state
+
+import com.nhaarman.mockitokotlin2.mock
+import com.nhaarman.mockitokotlin2.verify
+import com.nhaarman.mockitokotlin2.whenever
+import org.apache.kafka.clients.consumer.ConsumerRecord
+import org.jetbrains.spek.api.Spek
+import org.jetbrains.spek.api.dsl.describe
+import org.jetbrains.spek.api.dsl.it
+import org.jetbrains.spek.api.dsl.on
+import org.onap.dcae.collectors.veshv.kafkaconsumer.metrics.Metrics
+
+object OffsetConsumerTest : Spek({
+    describe("OffsetConsumer with metrics") {
+        val mockedMetrics = mock<Metrics>()
+        val offsetConsumer = OffsetConsumer(mockedMetrics)
+
+        on("new update method call") {
+            val consumerRecord = mock<ConsumerRecord<ByteArray, ByteArray>>()
+            whenever(consumerRecord.offset()).thenReturn(1)
+
+            offsetConsumer.update(consumerRecord)
+
+            it("should notify message offset metric") {
+                verify(mockedMetrics).notifyOffsetChanged(1)
+            }
+        }
+    }
+})