1 files changed, 82 insertions, 0 deletions
diff --git a/sources/hv-collector-dcae-app-simulator/src/test/kotlin/org/onap/dcae/collectors/veshv/simulators/dcaeapp/impl/ConsumerTest.kt b/sources/hv-collector-dcae-app-simulator/src/test/kotlin/org/onap/dcae/collectors/veshv/simulators/dcaeapp/impl/ConsumerTest.kt
new file mode 100644
index 00000000..08558d76
--- /dev/null
+++ b/sources/hv-collector-dcae-app-simulator/src/test/kotlin/org/onap/dcae/collectors/veshv/simulators/dcaeapp/impl/ConsumerTest.kt
@@ -0,0 +1,82 @@
+/*
+ * ============LICENSE_START=======================================================
+ * dcaegen2-collectors-veshv
+ * ================================================================================
+ * Copyright (C) 2018 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.simulators.dcaeapp.impl
+
+import org.apache.kafka.clients.consumer.ConsumerRecord
+import org.assertj.core.api.Assertions.assertThat
+import org.jetbrains.spek.api.Spek
+import org.jetbrains.spek.api.dsl.describe
+import org.jetbrains.spek.api.dsl.it
+import reactor.kafka.receiver.ReceiverRecord
+
+
+/**
+ * @author Piotr Jaszczyk <piotr.jaszczyk@nokia.com>
+ * @since August 2018
+ */
+internal class ConsumerTest : Spek({
+
+    lateinit var cut: Consumer
+
+    beforeEachTest {
+        cut = Consumer()
+    }
+
+    describe("Consumer which holds the state of received Kafka records") {
+        it("should contain empty state in the beginning") {
+            assertEmptyState(cut)
+        }
+
+        describe("update") {
+            val value = byteArrayOf(2)
+
+            beforeEachTest {
+                cut.update(receiverRecord(
+                        topic = "topic",
+                        key = byteArrayOf(1),
+                        value = value
+                )).unsafeRunSync()
+            }
+
+            it("should contain one message if it was updated once") {
+                assertState(cut, value)
+            }
+
+            it("should contain empty state message if it was reset after update") {
+                cut.reset().unsafeRunSync()
+                assertEmptyState(cut)
+            }
+        }
+    }
+})
+
+fun assertEmptyState(cut: Consumer) {
+    assertState(cut)
+}
+
+fun assertState(cut: Consumer, vararg values: ByteArray) {
+    assertThat(cut.currentState().consumedMessages)
+            .containsOnly(*values)
+    assertThat(cut.currentState().messagesCount)
+            .isEqualTo(values.size)
+}
+
+fun receiverRecord(topic: String, key: ByteArray, value: ByteArray) =
+        ReceiverRecord(ConsumerRecord(topic, 1, 100L, key, value), null)