package textfile;
import java.util.List;

import junit.framework.TestCase;

/*
 * Created on May 1, 2004. 
 * 
 */
/**
 * @author dickey
 */
public class DelimitedTextFileTest extends TestCase {
	/**
	 * Constructor for DelimitedTextFileTest.
	 * @param name
	 */
	public DelimitedTextFileTest(String name) {
		super(name);
	}
	
	/** To run this test, make sure first there IS a testdir directory.
	 * 	Make sure there is no "bad" file anywhere, and make sure there
	 * is the "good" file in the testdir.
	 * 
	 *
	 */
	public static void testFindInCurrDir() {
		System.out.println("Start current dir test");
		String currDirProp = "user.dir";
		String testDir = "C:\\jtestdir";
		String currDir;
		currDir = System.getProperty(currDirProp);
		assert currDir != null;
		currDir = System.setProperty(currDirProp, testDir);
		assert currDir != null;
		String checkDir = System.getProperty(currDirProp);
		assert checkDir.equals(testDir): currDir + " " + checkDir;
		String bad_tfilename = "nosuchx.txt";
		System.out.println("For testing, CANCEL the next file choice.");
		DelimitedTextFile tf = new DelimitedTextFile(bad_tfilename);
		assert tf.readLineAsFieldArray() == null;
		String good_tfilename = "README.txt";
		DelimitedTextFile tf2 = new DelimitedTextFile(good_tfilename);
		assert tf2.readLineAsFieldArray() != null; //this is the real test
		System.out.println("Found in current user dir: " + tf2.getFileName());
		System.setProperty(currDirProp, currDir);
		System.out.println("End current dir test " + currDir + " " + testDir);
	}

	public void testFile() {
		try {
			new DelimitedTextFile("");
			assert false;
		} catch (IllegalArgumentException e) {
			//that's expected
		}
		try {
			new DelimitedTextFile("notnull", "");
			assert false;
		} catch (IllegalArgumentException e) {
			//that's expected
		}
		try {
			System.out.println("For test purposes, hit CANCEL");
			DelimitedTextFile f = new DelimitedTextFile("C:");
			assert f.getFileName() == null; //should be null, not an exception
			assert f.getLineNum() == 0;
			System.out.println(f);
		} catch (Exception e) {
			assert false;
		}
		try {
			System.out.println("For test purposes, choose a valid file");
			DelimitedTextFile f = new DelimitedTextFile("C:");
			assert f.getFileName() != null; 
			assert f.getLineNum() == 0;
			System.out.println(f);
		} catch (Exception e) {
			assert false;
		}
		String fname;
		fname = "tabfile1.txt";
		fname = "C:\\Documents and Settings\\dickey\\My Documents\\MDJava-common\\ClassProjects\\142-04sp\\assigment4Reader\\testfiles\\tabfile1.txt";
		fname = "http://www.cs.washington.edu/education/courses/cse142/04sp/coursework/projects/p3/mvp4.txt";
		//fname = "mvdataShortOriginal.txt";
		//fname = "nosuchting";
		{
		DelimitedTextFile df = new DelimitedTextFile(fname, "/");
		assert df.getLineNum() == 0;
		System.out.println(df);
		String[] line1 = df.readLineAsFieldArray();
		while (line1 != null) {
			assert df.getLineNum() > 0;
			System.out.println(line1);
			DelimitedTextReaderTest.arrayDump(line1);
			System.out.println(df);
			line1 = df.readLineAsFieldArray();
		}
		}
		{
		//do it again, as a list
		DelimitedTextFile df = new DelimitedTextFile(fname, " ");
		System.out.println(df);
		List linelist = df.readLineAsFieldList();
		while (linelist != null) {
			System.out.println(linelist);
			DelimitedTextReaderTest.arrayDump(linelist);
			System.out.println(df);
			linelist = df.readLineAsFieldList();
		}
		}
	}
	
}