tpalfy commented on a change in pull request #3724: NIFI-6640 - UNION/CHOICE types not handled correctly URL: https://github.com/apache/nifi/pull/3724#discussion_r324784626
########## File path: nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/test/java/org/apache/nifi/processors/standard/AbstractTestConversion.java ########## @@ -0,0 +1,396 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You 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.apache.nifi.processors.standard; + +import org.apache.nifi.avro.AvroReader; +import org.apache.nifi.avro.AvroReaderWithEmbeddedSchema; +import org.apache.nifi.avro.AvroRecordSetWriter; +import org.apache.nifi.csv.CSVReader; +import org.apache.nifi.csv.CSVRecordSetWriter; +import org.apache.nifi.json.JsonRecordSetWriter; +import org.apache.nifi.json.JsonTreeReader; +import org.apache.nifi.reporting.InitializationException; +import org.apache.nifi.serialization.MalformedRecordException; +import org.apache.nifi.serialization.RecordReader; +import org.apache.nifi.serialization.RecordReaderFactory; +import org.apache.nifi.serialization.RecordSetWriterFactory; +import org.apache.nifi.serialization.record.Record; +import org.apache.nifi.util.MockFlowFile; +import org.apache.nifi.util.TestRunner; +import org.apache.nifi.util.TestRunners; +import org.apache.nifi.xml.XMLReader; +import org.apache.nifi.xml.XMLRecordSetWriter; +import org.junit.Before; +import org.junit.Test; + +import java.io.ByteArrayInputStream; +import java.io.IOException; +import java.nio.file.Files; +import java.nio.file.Paths; +import java.util.ArrayList; +import java.util.Map; +import java.util.Optional; +import java.util.UUID; +import java.util.function.Consumer; + +import static org.junit.Assert.assertEquals; + +public abstract class AbstractTestConversion { + protected RecordReaderFactory reader; + protected Consumer<TestRunner> inputHandler; + protected Consumer<TestRunner> readerConfigurer; + + protected RecordSetWriterFactory writer; + protected Consumer<MockFlowFile> resultHandler; + protected Consumer<TestRunner> writerConfigurer; + + @Before + public void setUp() throws Exception { + reader = null; + inputHandler = null; + readerConfigurer = null; + + writer = null; + resultHandler = null; + writerConfigurer = null; + } + + @Test + public void testCsvToJson() throws Exception { + fromCsv(csvPostfix()); + toJson(jsonPostfix()); + + testConversion(reader, readerConfigurer, writer, writerConfigurer, inputHandler, resultHandler); + } + + @Test + public void testCsvToAvro() throws Exception { + fromCsv(csvPostfix()); + toAvro(avroPostfix()); + + testConversion(reader, readerConfigurer, writer, writerConfigurer, inputHandler, resultHandler); + } + + @Test + public void testCsvToAvroToCsv() throws Exception { + fromCsv(csvPostfix()); + + AvroRecordSetWriter writer2 = new AvroRecordSetWriter(); + AvroReader reader2 = new AvroReader(); + + toCsv(csvPostfix()); + + testChain(writer2, reader2); + } + + @Test + public void testCsvToXml() throws Exception { + fromCsv(csvPostfix()); + toXml(xmlPostfix()); + + testConversion(reader, readerConfigurer, writer, writerConfigurer, inputHandler, resultHandler); + } + + @Test + public void testJsonToCsv() throws Exception { + fromJson(jsonPostfix()); + toCsv(csvPostfix()); + + testConversion(reader, readerConfigurer, writer, writerConfigurer, inputHandler, resultHandler); + } + + @Test + public void testJsonToAvro() throws Exception { + fromJson(jsonPostfix()); + toAvro(avroPostfix()); + + testConversion(reader, readerConfigurer, writer, writerConfigurer, inputHandler, resultHandler); + } + + @Test + public void testJsonToAvroToJson() throws Exception { + fromJson(jsonPostfix()); + + AvroRecordSetWriter writer2 = new AvroRecordSetWriter(); + AvroReader reader2 = new AvroReader(); + + toJson(jsonPostfix()); + + testChain(writer2, reader2); + } + + @Test + public void testAvroToCsv() throws Exception { + fromAvro(avroPostfix()); + toCsv(csvPostfix()); + + testConversion(reader, readerConfigurer, writer, writerConfigurer, inputHandler, resultHandler); + } + + @Test + public void testAvroToJson() throws Exception { + fromAvro(avroPostfix()); + toJson(jsonPostfix()); + + testConversion(reader, readerConfigurer, writer, writerConfigurer, inputHandler, resultHandler); + } + + @Test + public void testAvroToXml() throws Exception { + fromAvro(avroPostfix()); + toXml(xmlPostfix()); + + testConversion(reader, readerConfigurer, writer, writerConfigurer, inputHandler, resultHandler); + } + + @Test + public void testXmlToCsv() throws Exception { + fromXml(xmlPostfix()); + toCsv(csvPostfix()); + + testConversion(reader, readerConfigurer, writer, writerConfigurer, inputHandler, resultHandler); + } + + @Test + public void testXmlToJson() throws Exception { + fromXml(xmlPostfix()); + toJson(jsonPostfix()); + + testConversion(reader, readerConfigurer, writer, writerConfigurer, inputHandler, resultHandler); + } + + @Test + public void testXmlToAvro() throws Exception { + fromXml(xmlPostfix()); + toAvro(avroPostfix()); + + testConversion(reader, readerConfigurer, writer, writerConfigurer, inputHandler, resultHandler); + } + + @Test + public void testXmlToAvroToXml() throws Exception { + fromXml(xmlPostfix()); + + AvroRecordSetWriter writer2 = new AvroRecordSetWriter(); + AvroReader reader2 = new AvroReader(); + + toXml(xmlPostfix()); + + testChain(writer2, reader2); + } + + abstract protected String csvPostfix(); + + abstract protected String jsonPostfix(); + + abstract protected String avroPostfix(); + + abstract protected String xmlPostfix(); + + protected void commonReaderConfiguration(TestRunner testRunner) { + } + + protected void commonWriterConfiguration(TestRunner testRunner) { + } + + protected void fromCsv(String postfix) { + reader = new CSVReader(); + inputHandler = stringInputHandler(getContent(postfix)); + + readerConfigurer = testRunner -> { + commonReaderConfiguration(testRunner); + }; + } + + protected void fromJson(String postfix) { + reader = new JsonTreeReader(); + inputHandler = stringInputHandler(getContent(postfix)); + + readerConfigurer = testRunner -> { + commonReaderConfiguration(testRunner); + }; + } + + protected void fromXml(String postfix) { + reader = new XMLReader(); + inputHandler = stringInputHandler(getContent(postfix)); + + readerConfigurer = testRunner -> { + commonReaderConfiguration(testRunner); + testRunner.setProperty(reader, XMLReader.RECORD_FORMAT, XMLReader.RECORD_ARRAY); + }; + } + + protected void fromAvro(String postfix) { + reader = new AvroReader(); + inputHandler = byteInputHandler(getByteContent(postfix)); + + readerConfigurer = testRunner -> { + commonReaderConfiguration(testRunner); + }; + } + + protected void toCsv(String postfix) { + writer = new CSVRecordSetWriter(); + resultHandler = stringOutputHandler(getContent(postfix)); + + writerConfigurer = testRunner -> { + commonWriterConfiguration(testRunner); + }; + } + + protected void toJson(String postfix) { + writer = new JsonRecordSetWriter(); + resultHandler = stringOutputHandler(getContent(postfix)); + + writerConfigurer = testRunner -> { + commonWriterConfiguration(testRunner); + testRunner.setProperty(writer, "Pretty Print JSON", "true"); + }; + } + + protected void toXml(String postfix) { + writer = new XMLRecordSetWriter(); + resultHandler = stringOutputHandler(getContent(postfix)); + + writerConfigurer = testRunner -> { + commonWriterConfiguration(testRunner); + testRunner.setProperty(writer, "pretty_print_xml", "true"); + testRunner.setProperty(writer, "root_tag_name", "root"); + testRunner.setProperty(writer, "record_tag_name", "nifiRecord"); + }; + } + + protected void toAvro(String postfix) { + writer = new AvroRecordSetWriter(); + resultHandler = mockFlowFile -> { + try { + ArrayList<Map<String, Object>> expected = getRecords(getByteContent(postfix)); + ArrayList<Map<String, Object>> actual = getRecords(mockFlowFile.toByteArray()); + + assertEquals(expected, actual); + } catch (Exception e) { + throw new RuntimeException(e); + } + }; + + writerConfigurer = testRunner -> { + commonWriterConfiguration(testRunner); + }; + } + + protected Consumer<TestRunner> stringInputHandler(String input) { + return testRunner -> testRunner.enqueue(input); + } + + protected Consumer<TestRunner> byteInputHandler(byte[] input) { + return testRunner -> testRunner.enqueue(input); + } + + protected Consumer<MockFlowFile> stringOutputHandler(String expected) { + return mockFlowFile -> mockFlowFile.assertContentEquals(expected); + } + + protected String getContent(String postfix) { + String content = new String(getByteContent(postfix)); + + return content; + } + + protected byte[] getByteContent(String postfix) { + byte[] content; + try { + content = Files.readAllBytes(Paths.get("src/test/resources/TestConversions/data.int_float_string." + postfix)); Review comment: Simplified this as well. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. 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