Improve coverage of xNF simulator

Also refactor to make it possible.

Change-Id: I6da6d3f33e57c524a7e353ecebd3e045d8ceed2a
Issue-ID: DCAEGEN2-739
Signed-off-by: Piotr Jaszczyk <piotr.jaszczyk@nokia.com>

3 files changed, 224 insertions, 3 deletions

diff --git a/hv-collector-xnf-simulator/src/test/kotlin/org/onap/dcae/collectors/veshv/main/OngoingSimulationsTest.kt b/hv-collector-xnf-simulator/src/test/kotlin/org/onap/dcae/collectors/veshv/main/OngoingSimulationsTest.kt
new file mode 100644
index 00000000..70d8ba83
--- /dev/null
+++ b/hv-collector-xnf-simulator/src/test/kotlin/org/onap/dcae/collectors/veshv/main/OngoingSimulationsTest.kt
@@ -0,0 +1,107 @@
+/*
+ * ============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.main
+
+import arrow.effects.IO
+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.given
+import org.jetbrains.spek.api.dsl.it
+import org.jetbrains.spek.api.dsl.on
+import org.onap.dcae.collectors.veshv.simulators.xnf.impl.OngoingSimulations
+import org.onap.dcae.collectors.veshv.simulators.xnf.impl.StatusFailure
+import org.onap.dcae.collectors.veshv.simulators.xnf.impl.StatusNotFound
+import org.onap.dcae.collectors.veshv.simulators.xnf.impl.StatusOngoing
+import org.onap.dcae.collectors.veshv.simulators.xnf.impl.StatusSuccess
+import org.onap.dcae.collectors.veshv.tests.utils.waitUntilSucceeds
+import java.time.Duration
+import java.util.*
+import java.util.concurrent.Executors
+
+/**
+ * @author Piotr Jaszczyk <piotr.jaszczyk@nokia.com>
+ * @since September 2018
+ */
+internal class OngoingSimulationsTest : Spek({
+    val executor = Executors.newSingleThreadExecutor()
+    val cut = OngoingSimulations(executor)
+
+    describe("simulations repository") {
+        given("not existing task task id") {
+            val id = UUID.randomUUID()
+
+            on("status") {
+                val result = cut.status(id)
+
+                it("should have 'not found' status") {
+                    assertThat(result).isEqualTo(StatusNotFound)
+                }
+            }
+        }
+
+        given("never ending task") {
+            val task = IO.async<Unit> { }
+
+            on("startAsynchronousSimulation") {
+                val result = cut.startAsynchronousSimulation(task)
+
+                it("should have ongoing status") {
+                    assertThat(cut.status(result)).isEqualTo(StatusOngoing)
+                }
+            }
+        }
+
+        given("failing task") {
+            val cause = RuntimeException("facepalm")
+            val task = IO.raiseError<Unit>(cause)
+
+            on("startAsynchronousSimulation") {
+                val result = cut.startAsynchronousSimulation(task)
+
+                it("should have failing status") {
+                    waitUntilSucceeds {
+                        assertThat(cut.status(result)).isEqualTo(StatusFailure(cause))
+                    }
+                }
+            }
+        }
+
+        given("successful task") {
+            val task = IO { println("great success!") }
+
+            on("startAsynchronousSimulation") {
+                val result = cut.startAsynchronousSimulation(task)
+
+                it("should have successful status") {
+                    waitUntilSucceeds {
+                        assertThat(cut.status(result)).isEqualTo(StatusSuccess)
+                    }
+                }
+            }
+        }
+
+        afterGroup {
+            executor.shutdown()
+        }
+    }
+
+    afterEachTest { cut.clear() }
+})
diff --git a/hv-collector-xnf-simulator/src/test/kotlin/org/onap/dcae/collectors/veshv/main/XnfSimulatorTest.kt b/hv-collector-xnf-simulator/src/test/kotlin/org/onap/dcae/collectors/veshv/main/XnfSimulatorTest.kt
new file mode 100644
index 00000000..80f39579
--- /dev/null
+++ b/hv-collector-xnf-simulator/src/test/kotlin/org/onap/dcae/collectors/veshv/main/XnfSimulatorTest.kt
@@ -0,0 +1,114 @@
+/*
+ * ============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.main
+
+import arrow.core.Left
+import arrow.core.None
+import arrow.core.Right
+import arrow.effects.IO
+import com.nhaarman.mockito_kotlin.any
+import com.nhaarman.mockito_kotlin.mock
+import com.nhaarman.mockito_kotlin.whenever
+import com.sun.xml.internal.messaging.saaj.util.ByteInputStream
+import org.jetbrains.spek.api.Spek
+import org.jetbrains.spek.api.dsl.describe
+import org.jetbrains.spek.api.dsl.it
+import org.onap.dcae.collectors.veshv.domain.PayloadWireFrameMessage
+import org.onap.dcae.collectors.veshv.simulators.xnf.impl.XnfSimulator
+import org.onap.dcae.collectors.veshv.simulators.xnf.impl.adapters.VesHvClient
+import org.onap.dcae.collectors.veshv.tests.utils.Assertions.assertThat
+import org.onap.dcae.collectors.veshv.ves.message.generator.api.MessageGenerator
+import org.onap.dcae.collectors.veshv.ves.message.generator.api.MessageParameters
+import org.onap.dcae.collectors.veshv.ves.message.generator.api.MessageParametersParser
+import org.onap.dcae.collectors.veshv.ves.message.generator.api.ParsingError
+import reactor.core.publisher.Flux
+
+/**
+ * @author Piotr Jaszczyk <piotr.jaszczyk@nokia.com>
+ * @since September 2018
+ */
+internal class XnfSimulatorTest : Spek({
+    lateinit var cut: XnfSimulator
+    lateinit var vesClient: VesHvClient
+    lateinit var messageParametersParser: MessageParametersParser
+    lateinit var messageGenerator: MessageGenerator
+
+    beforeEachTest {
+        vesClient = mock()
+        messageParametersParser = mock()
+        messageGenerator = mock()
+        cut = XnfSimulator(vesClient, messageParametersParser, messageGenerator)
+    }
+
+    describe("startSimulation") {
+        it("should fail when empty input stream") {
+            // given
+            val emptyInputStream = ByteInputStream()
+
+            // when
+            val result = cut.startSimulation(emptyInputStream)
+
+            // then
+            assertThat(result).isLeft()
+        }
+
+        it("should fail when invalid JSON") {
+            // given
+            val invalidJson = "invalid json".byteInputStream()
+
+            // when
+            val result = cut.startSimulation(invalidJson)
+
+            // then
+            assertThat(result).isLeft()
+        }
+
+        it("should fail when JSON syntax is valid but content is invalid") {
+            // given
+            val json = "[1,2,3]".byteInputStream()
+            val cause = ParsingError("epic fail", None)
+            whenever(messageParametersParser.parse(any())).thenReturn(
+                    Left(cause))
+
+            // when
+            val result = cut.startSimulation(json)
+
+            // then
+            assertThat(result).left().isEqualTo(cause)
+        }
+
+        it("should return generated messages") {
+            // given
+            val json = "[true]".byteInputStream()
+            val messageParams = listOf<MessageParameters>()
+            val generatedMessages = Flux.empty<PayloadWireFrameMessage>()
+            val sendingIo = IO {}
+            whenever(messageParametersParser.parse(any())).thenReturn(Right(messageParams))
+            whenever(messageGenerator.createMessageFlux(messageParams)).thenReturn(generatedMessages)
+            whenever(vesClient.sendIo(generatedMessages)).thenReturn(sendingIo)
+
+            // when
+            val result = cut.startSimulation(json)
+
+            // then
+            assertThat(result).right().isSameAs(sendingIo)
+        }
+    }
+})
diff --git a/hv-collector-xnf-simulator/src/test/kotlin/org/onap/dcae/collectors/veshv/main/config/ArgXnfSimulatorConfiurationTest.kt b/hv-collector-xnf-simulator/src/test/kotlin/org/onap/dcae/collectors/veshv/main/config/ArgXnfSimulatorConfiurationTest.kt
index 8749dc5b..69caf727 100644
--- a/hv-collector-xnf-simulator/src/test/kotlin/org/onap/dcae/collectors/veshv/main/config/ArgXnfSimulatorConfiurationTest.kt
+++ b/hv-collector-xnf-simulator/src/test/kotlin/org/onap/dcae/collectors/veshv/main/config/ArgXnfSimulatorConfiurationTest.kt
@@ -26,9 +26,9 @@ import org.jetbrains.spek.api.dsl.given
 import org.jetbrains.spek.api.dsl.it
 import org.jetbrains.spek.api.dsl.on
 import org.onap.dcae.collectors.veshv.domain.SecurityConfiguration
-import org.onap.dcae.collectors.veshv.simulators.xnf.config.ArgXnfSimulatorConfiguration
-import org.onap.dcae.collectors.veshv.simulators.xnf.config.ArgXnfSimulatorConfiguration.DefaultValues
-import org.onap.dcae.collectors.veshv.simulators.xnf.config.SimulatorConfiguration
+import org.onap.dcae.collectors.veshv.simulators.xnf.impl.config.ArgXnfSimulatorConfiguration
+import org.onap.dcae.collectors.veshv.simulators.xnf.impl.config.ArgXnfSimulatorConfiguration.DefaultValues
+import org.onap.dcae.collectors.veshv.simulators.xnf.impl.config.SimulatorConfiguration
 import org.onap.dcae.collectors.veshv.tests.utils.parseExpectingFailure
 import org.onap.dcae.collectors.veshv.tests.utils.parseExpectingSuccess
 import org.onap.dcae.collectors.veshv.utils.commandline.WrongArgumentError