### Question:
Main { private Main() { throw new UnsupportedOperationException(""); } private  Main(); static void main(final String... args);  }### Answer:
@Test public void performValidMigration() throws IOException, URISyntaxException { expectedSystemExit.expectSystemExitWithStatus(0); final Path inputFile = Paths.get(getClass().getResource("/bdb/single-entry.txt").toURI()); final Path outputPath = Files.createTempFile("db", ".db"); Main.main( "-storetype", "bdb", "-inputpath", inputFile.toString(), "-exporttype", "h2", "-outputfile", outputPath.toString(), "-dbpass", "-dbuser"); }
@Test public void outputDebugInformationWithNullCause() throws IOException { expectedSystemExit.expectSystemExitWithStatus(1); final Path outputPath = Files.createTempFile("db", ".db"); Main.main( "-storetype", "bdb", "-inputpath", "non-existent", "-exporttype", "h2", "-outputfile", outputPath.toString(), "-dbpass", "-dbuser", "debug"); }