code: package ta.converter;
  
  import static org.junit.Assert.*;
  
  import java.io.IOException;
  import java.util.HashSet;
  
  import org.antlr.v4.runtime.ANTLRFileStream;
  import org.antlr.v4.runtime.ANTLRInputStream;
  import org.antlr.v4.runtime.CommonTokenStream;
  import org.junit.Test;
  
  import formulae.cltloc.CLTLocFormula;
  import ta.SystemDecl;
  import ta.parser.TALexer;
  import ta.parser.TAParser;
  import ta.visitors.TANetwork2CLTLoc;
  
  public class FischerTest {
  
  	@Test
  	public void test() throws IOException {
  	
  
  		ANTLRInputStream tainput = new ANTLRFileStream(
  				ClassLoader.getSystemResource("ta/converter/fischer_input_02.ta").getPath());
  		TALexer talexer = new TALexer(tainput);
  		CommonTokenStream tatokens = new CommonTokenStream(talexer);
  		TAParser taparser = new TAParser(tatokens);
  		taparser.setBuildParseTree(true);
  		SystemDecl system = taparser.ta().systemret;
  
  		TANetwork2CLTLoc  ta2cltloc=new TANetwork2CLTLoc();
  		CLTLocFormula f=ta2cltloc.convert(system, new HashSet<>(), new HashSet<>());
  
  		assertNotNull(f);
  	}
  }
  