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Testing library to run with grading student examination.

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package hr.fer.junit.grading.command_line;

import java.util.EnumSet;
import java.util.List;

import com.beust.jcommander.IStringConverter;
import com.beust.jcommander.Parameter;
import com.beust.jcommander.ParameterException;

public class ProgramArguments {
  @Parameter(names = "-tg", description = "test group (default is all test groups)")
  public String testGroup = "all";

  @Parameter(names = "-p", description = "package names to find tests", required = true, variableArity = true)
  public List packages;

  @Parameter(names = "-gm", description = "Grading matrix file (default is looking for 'gradingMatrix.csv' in CWD and in classpath)")
  public String gradingFilePath = "";

  @Parameter(names = "-h", help = true, description = "help")
  public boolean help;

  @Parameter(names = "-m", description = "Running modes: normal - prints summary, details - prints details, statistics - print statistics (testGroup, number of tests, test IDs)", converter = ModeConverter.class)
  public Mode mode = Mode.NORMAL;

  public enum Mode { NORMAL, DETAILS, STATISTICS }

  public static class ModeConverter implements IStringConverter {
    private String param;

    public ModeConverter(String param) {
      this.param = param;
    }

    @Override
    public Mode convert(String value) {
      try {
        return Mode.valueOf(value.toUpperCase());
      } catch (IllegalArgumentException e) {
        throw new ParameterException("Invalid value for " + param + " parameter. Allowed values:" +
            EnumSet.allOf(Mode.class));
      }
    }

  }


}