### Question:
CsvDatasetWriter extends AbstractDatasetWriter { public CsvDatasetWriter(File outputCsv) { this(outputCsv, false, true); } CsvDatasetWriter(File outputCsv);  CsvDatasetWriter(File outputCsv, boolean overwrite, boolean writeCategory);  CsvDatasetWriter(CsvDatasetWriterConfig config); @Override DatasetAppender write(FeatureInformation featureInformation);  }### Answer:
@Test public void testCsvDatasetWriter() throws IOException { File tempFile = FileHelper.getTempFile(); Dataset testDataset = new RandomDataset(100); CsvDatasetWriter writer = new CsvDatasetWriter(tempFile); writer.write(testDataset); assertEquals("The result file should contain 101 lines (including header)", 101, FileHelper.getNumberOfLines(tempFile)); }