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>

5 files changed, 305 insertions, 0 deletions

diff --git a/hv-collector-test-utils/src/main/kotlin/org/onap/dcae/collectors/veshv/tests/utils/arrow.kt b/hv-collector-test-utils/src/main/kotlin/org/onap/dcae/collectors/veshv/tests/utils/arrow.kt
new file mode 100644
index 00000000..54913744
--- /dev/null
+++ b/hv-collector-test-utils/src/main/kotlin/org/onap/dcae/collectors/veshv/tests/utils/arrow.kt
@@ -0,0 +1,62 @@
+/*
+ * ============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.tests.utils
+
+import arrow.core.Either
+import arrow.core.identity
+import org.assertj.core.api.AbstractAssert
+import org.assertj.core.api.Assertions.assertThat
+import org.assertj.core.api.ObjectAssert
+
+/**
+ * @author Piotr Jaszczyk <piotr.jaszczyk@nokia.com>
+ * @since September 2018
+ */
+class EitherAssert<A, B>(actual: Either<A, B>)
+    : AbstractAssert<EitherAssert<A, B>, Either<A, B>>(actual, EitherAssert::class.java) {
+
+    fun isLeft(): EitherAssert<A, B> {
+        isNotNull()
+        isInstanceOf(Either.Left::class.java)
+        return myself
+    }
+
+    fun left(): ObjectAssert<A> {
+        isLeft()
+        val left =  actual.fold(
+                ::identity,
+                { throw AssertionError("should be left") })
+        return assertThat(left)
+    }
+
+    fun isRight(): EitherAssert<A, B> {
+        isNotNull()
+        isInstanceOf(Either.Right::class.java)
+        return myself
+    }
+
+    fun right(): ObjectAssert<B> {
+        isRight()
+        val right =  actual.fold(
+                { throw AssertionError("should be right") },
+                ::identity)
+        return assertThat(right)
+    }
+}
diff --git a/hv-collector-test-utils/src/main/kotlin/org/onap/dcae/collectors/veshv/tests/utils/assertions.kt b/hv-collector-test-utils/src/main/kotlin/org/onap/dcae/collectors/veshv/tests/utils/assertions.kt
new file mode 100644
index 00000000..d017b31b
--- /dev/null
+++ b/hv-collector-test-utils/src/main/kotlin/org/onap/dcae/collectors/veshv/tests/utils/assertions.kt
@@ -0,0 +1,55 @@
+/*
+ * ============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.tests.utils
+
+import arrow.core.Either
+import org.onap.dcae.collectors.veshv.utils.logging.Logger
+import java.time.Duration
+
+/**
+ * @author Piotr Jaszczyk <piotr.jaszczyk@nokia.com>
+ * @since September 2018
+ */
+
+private val logger = Logger("org.onap.dcae.collectors.veshv.tests.utils")
+
+object Assertions : org.assertj.core.api.Assertions() {
+    fun <A,B> assertThat(actual: Either<A, B>) = EitherAssert(actual)
+}
+
+
+fun waitUntilSucceeds(action: () -> Unit) = waitUntilSucceeds(50, Duration.ofMillis(10), action)
+
+fun waitUntilSucceeds(retries: Int, sleepTime: Duration, action: () -> Unit) {
+    var tryNum = 0
+    while (tryNum <= retries) {
+        tryNum++
+        try {
+            logger.debug("Try number $tryNum")
+            action()
+            break
+        } catch (ex: Throwable) {
+            if (tryNum >= retries)
+                throw ex
+            else
+                Thread.sleep(sleepTime.toMillis())
+        }
+    }
+}
diff --git a/hv-collector-test-utils/src/main/kotlin/org/onap/dcae/collectors/veshv/tests/utils/configurations.kt b/hv-collector-test-utils/src/main/kotlin/org/onap/dcae/collectors/veshv/tests/utils/configurations.kt
new file mode 100644
index 00000000..57843b45
--- /dev/null
+++ b/hv-collector-test-utils/src/main/kotlin/org/onap/dcae/collectors/veshv/tests/utils/configurations.kt
@@ -0,0 +1,37 @@
+/*
+ * ============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.tests.utils
+
+import arrow.core.identity
+import org.onap.dcae.collectors.veshv.utils.commandline.ArgBasedConfiguration
+import org.onap.dcae.collectors.veshv.utils.commandline.WrongArgumentError
+
+
+fun <T> ArgBasedConfiguration<T>.parseExpectingSuccess(vararg cmdLine: String): T =
+        parse(cmdLine).fold(
+                { throw AssertionError("Parsing result should be present") },
+                ::identity
+        )
+
+fun <T> ArgBasedConfiguration<T>.parseExpectingFailure(vararg cmdLine: String): WrongArgumentError =
+        parse(cmdLine).fold(
+                ::identity,
+                { throw AssertionError("parsing should have failed") }
+        )
\ No newline at end of file
diff --git a/hv-collector-test-utils/src/main/kotlin/org/onap/dcae/collectors/veshv/tests/utils/messages.kt b/hv-collector-test-utils/src/main/kotlin/org/onap/dcae/collectors/veshv/tests/utils/messages.kt
new file mode 100644
index 00000000..c6aa89b2
--- /dev/null
+++ b/hv-collector-test-utils/src/main/kotlin/org/onap/dcae/collectors/veshv/tests/utils/messages.kt
@@ -0,0 +1,86 @@
+/*
+ * ============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.tests.utils
+
+import com.google.protobuf.ByteString
+import io.netty.buffer.ByteBuf
+import io.netty.buffer.ByteBufAllocator
+import io.netty.buffer.PooledByteBufAllocator
+import org.onap.dcae.collectors.veshv.domain.PayloadWireFrameMessage.Companion.MAX_PAYLOAD_SIZE
+import org.onap.dcae.collectors.veshv.domain.PayloadWireFrameMessage.Companion.RESERVED_BYTE_COUNT
+import org.onap.ves.VesEventV5.VesEvent.CommonEventHeader.Domain
+import java.util.UUID.randomUUID
+
+
+val allocator: ByteBufAllocator = PooledByteBufAllocator.DEFAULT
+
+private fun ByteBuf.writeValidWireFrameHeaders() {
+    writeByte(0xFF)          // always 0xFF
+    writeByte(0x01)          // major version
+    writeByte(0x00)          // minor version
+    writeZero(RESERVED_BYTE_COUNT)  // reserved
+    writeByte(0x01)          // content type = GPB
+}
+
+fun vesWireFrameMessage(domain: Domain = Domain.OTHER,
+                        id: String = randomUUID().toString()): ByteBuf =
+        allocator.buffer().run {
+            writeValidWireFrameHeaders()
+
+            val gpb = vesEvent(domain, id).toByteString().asReadOnlyByteBuffer()
+            writeInt(gpb.limit())  // ves event size in bytes
+            writeBytes(gpb)  // ves event as GPB bytes
+        }
+
+fun endOfTransmissionWireMessage(): ByteBuf =
+        allocator.buffer().writeByte(0xAA)
+
+fun wireFrameMessageWithInvalidPayload(): ByteBuf = allocator.buffer().run {
+    writeValidWireFrameHeaders()
+
+    val invalidGpb = "some random data".toByteArray(Charsets.UTF_8)
+    writeInt(invalidGpb.size)  // ves event size in bytes
+    writeBytes(invalidGpb)
+}
+
+fun garbageFrame(): ByteBuf = allocator.buffer().run {
+    writeBytes("the meaning of life is &@)(*_!".toByteArray())
+}
+
+fun invalidWireFrame(): ByteBuf = allocator.buffer().run {
+    writeByte(0xFF)
+    writeByte(0x01)   // version
+    writeByte(0x01)   // content type = GPB
+}
+
+fun vesMessageWithTooBigPayload(domain: Domain = Domain.DOMAIN_UNDEFINED): ByteBuf =
+        allocator.buffer().run {
+            writeValidWireFrameHeaders()
+
+            val gpb = vesEvent(
+                    domain = domain,
+                    hvRanMeasFields = ByteString.copyFrom(ByteArray(MAX_PAYLOAD_SIZE))
+            ).toByteString().asReadOnlyByteBuffer()
+
+            writeInt(gpb.limit())  // ves event size in bytes
+            writeBytes(gpb)  // ves event as GPB bytes
+        }
+
+
diff --git a/hv-collector-test-utils/src/main/kotlin/org/onap/dcae/collectors/veshv/tests/utils/vesEvents.kt b/hv-collector-test-utils/src/main/kotlin/org/onap/dcae/collectors/veshv/tests/utils/vesEvents.kt
new file mode 100644
index 00000000..6aeb6206
--- /dev/null
+++ b/hv-collector-test-utils/src/main/kotlin/org/onap/dcae/collectors/veshv/tests/utils/vesEvents.kt
@@ -0,0 +1,65 @@
+/*
+ * ============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.tests.utils
+
+
+import com.google.protobuf.ByteString
+import com.google.protobuf.MessageLite
+import org.onap.dcae.collectors.veshv.domain.ByteData
+import org.onap.ves.VesEventV5
+import java.util.UUID.randomUUID
+
+fun vesEvent(domain: VesEventV5.VesEvent.CommonEventHeader.Domain = VesEventV5.VesEvent.CommonEventHeader.Domain.HVRANMEAS,
+             id: String = randomUUID().toString(),
+             hvRanMeasFields: ByteString = ByteString.EMPTY
+): VesEventV5.VesEvent = vesEvent(commonHeader(domain, id), hvRanMeasFields)
+
+fun vesEvent(commonEventHeader: VesEventV5.VesEvent.CommonEventHeader,
+             hvRanMeasFields: ByteString = ByteString.EMPTY): VesEventV5.VesEvent =
+        VesEventV5.VesEvent.newBuilder()
+                .setCommonEventHeader(commonEventHeader)
+                .setHvRanMeasFields(hvRanMeasFields)
+                .build()
+
+fun commonHeader(domain: VesEventV5.VesEvent.CommonEventHeader.Domain = VesEventV5.VesEvent.CommonEventHeader.Domain.HVRANMEAS,
+                 id: String = randomUUID().toString(),
+                 priority: VesEventV5.VesEvent.CommonEventHeader.Priority = VesEventV5.VesEvent.CommonEventHeader.Priority.NORMAL): VesEventV5.VesEvent.CommonEventHeader =
+        VesEventV5.VesEvent.CommonEventHeader.newBuilder()
+                .setVersion("sample-version")
+                .setDomain(domain)
+                .setSequence(1)
+                .setPriority(priority)
+                .setEventId(id)
+                .setEventName("sample-event-name")
+                .setEventType("sample-event-type")
+                .setStartEpochMicrosec(120034455)
+                .setLastEpochMicrosec(120034455)
+                .setNfNamingCode("sample-nf-naming-code")
+                .setNfcNamingCode("sample-nfc-naming-code")
+                .setReportingEntityId("sample-reporting-entity-id")
+                .setReportingEntityName(ByteString.copyFromUtf8("sample-reporting-entity-name"))
+                .setSourceId(ByteString.copyFromUtf8("sample-source-id"))
+                .setSourceName("sample-source-name")
+                .build()
+
+fun vesEventBytes(commonHeader: VesEventV5.VesEvent.CommonEventHeader, byteString: ByteString = ByteString.EMPTY): ByteData =
+        vesEvent(commonHeader, byteString).toByteData()
+
+fun MessageLite.toByteData(): ByteData = ByteData(toByteArray())
\ No newline at end of file