package jp.funnything.competition.util;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.math.BigDecimal;
import java.math.BigInteger;

import org.apache.commons.io.IOUtils;

public class QuestionReader {
    private final BufferedReader _reader;

    public QuestionReader( final File input ) {
        try {
            _reader = new BufferedReader( new FileReader( input ) );
        } catch ( final FileNotFoundException e ) {
            throw new RuntimeException( e );
        }
    }

    public void close() {
        IOUtils.closeQuietly( _reader );
    }

    public String read() {
        try {
            return _reader.readLine();
        } catch ( final IOException e ) {
            throw new RuntimeException( e );
        }
    }

    public BigDecimal[] readBigDecimals() {
        return readBigDecimals( " " );
    }

    public BigDecimal[] readBigDecimals( final String separator ) {
        final String[] tokens = readTokens( separator );

        final BigDecimal[] values = new BigDecimal[ tokens.length ];
        for ( int index = 0 ; index < tokens.length ; index++ ) {
            values[ index ] = new BigDecimal( tokens[ index ] );
        }

        return values;
    }

    public BigInteger[] readBigInts() {
        return readBigInts( " " );
    }

    public BigInteger[] readBigInts( final String separator ) {
        final String[] tokens = readTokens( separator );

        final BigInteger[] values = new BigInteger[ tokens.length ];
        for ( int index = 0 ; index < tokens.length ; index++ ) {
            values[ index ] = new BigInteger( tokens[ index ] );
        }

        return values;
    }

    public int readInt() {
        final int[] values = readInts();

        if ( values.length != 1 ) {
            throw new IllegalStateException( "Try to read single interger, but the line contains zero or multiple values" );
        }

        return values[ 0 ];
    }

    public int[] readInts() {
        return readInts( " " );
    }

    public int[] readInts( final String separator ) {
        final String[] tokens = readTokens( separator );

        final int[] values = new int[ tokens.length ];
        for ( int index = 0 ; index < tokens.length ; index++ ) {
            values[ index ] = Integer.parseInt( tokens[ index ] );
        }

        return values;
    }

    public long readLong() {
        final long[] values = readLongs();

        if ( values.length != 1 ) {
            throw new IllegalStateException( "Try to read single interger, but the line contains zero or multiple values" );
        }

        return values[ 0 ];
    }

    public long[] readLongs() {
        return readLongs( " " );
    }

    public long[] readLongs( final String separator ) {
        final String[] tokens = readTokens( separator );

        final long[] values = new long[ tokens.length ];
        for ( int index = 0 ; index < tokens.length ; index++ ) {
            values[ index ] = Long.parseLong( tokens[ index ] );
        }

        return values;
    }

    public String[] readTokens() {
        return readTokens( " " );
    }

    public String[] readTokens( final String separator ) {
        return read().split( separator );
    }
}

package org.moriraaca.codejam;

import static junit.framework.Assert.assertEquals;
import static junit.framework.Assert.fail;

import java.io.BufferedReader;
import java.io.File;
import java.io.FilenameFilter;
import java.io.InputStreamReader;
import java.io.Reader;
import java.util.Collection;
import java.util.LinkedList;
import java.util.List;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.junit.runners.Parameterized.Parameters;

@RunWith(value = Parameterized.class)
public abstract class AbstractTest {
	private final static String TEST_RESOURCE_DIR = "src/test/resources";

	@Parameters
	public static Collection<Object[]> getFileNames() {
		String[] fileNames = new File(TEST_RESOURCE_DIR)
				.list(new FilenameFilter() {
					public boolean accept(File dir, String name) {
						return name.endsWith(".in");
					}
				});

		List<Object[]> result = new LinkedList<Object[]>();
		for (String fileName : fileNames) {
			result.add(new Object[] { fileName.substring(0,
					fileName.length() - 3) });
		}

		return result;
	}

	protected String fileName;

	protected String getInputFileName() {
		return String.format("%s.in", fileName);
	}

	protected String getOutputFileName() {
		return String.format("%s.out", fileName);
	}

	public AbstractTest(String fileName) {
		this.fileName = fileName;
	}

	@Test
	public void testSolver() {
		TestConfiguration config = getClass().getAnnotation(
				TestConfiguration.class);
		try {
			System.err.println(String.format("Testing with file %s", fileName));

			assertEquals(getExpectedOutput(), config.solverClass()
					.newInstance().solve(getInputFileName()));
		} catch (Exception e) {
			e.printStackTrace();
			fail();
		}
	}

	private String getExpectedOutput() throws Exception {
		StringBuilder result = new StringBuilder();

		char[] cbuf = new char[1024];
		Reader r = new BufferedReader(new InputStreamReader(getClass()
				.getClassLoader().getResourceAsStream(getOutputFileName())));
		int numRead = 0;
		while ((numRead = r.read(cbuf)) != -1) {
			result.append(String.valueOf(cbuf, 0, numRead));
		}

		r.close();

		return result.toString();
	}
}
