TC_FileHelper.java

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 * Copyright (C) 2006 Lukas Felber <lfelber@hsr.ch>
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package org.rubypeople.rdt.refactoring.tests.util;

import org.rubypeople.rdt.refactoring.util.FileHelper;

import junit.framework.TestCase;


public class TC_FileHelper extends TestCase {

	private static final String LF = "\n";
	private static final String CR = "\r";
	private static final String EMPTY_DOCUMENT = "";
	private static final String TEST_DOCUMENT_LF = "class Triangle\n\tdef hypotenuse a, b\n\t\tcSquare = a ** 2 + b ** 2\n\tcSquare ** 0.5\n\tend\nend";
	private static final String TEST_DOCUMENT_CR = "class Triangle\r\tdef hypotenuse a, b\r\t\tcSquare = a ** 2 + b ** 2\r\tcSquare ** 0.5\r\tend\rend";
	private static final String TEST_DOCUMENT_CRLF = "class Triangle\r\n\tdef hypotenuse a, b\r\n\t\tcSquare = a ** 2 + b ** 2\r\n\tcSquare ** 0.5\r\n\tend\r\nend";
	private static final String TEST_DOCUMENT_MIXED = "class Triangle\r\n\tdef hypotenuse a, b\n\t\tcSquare = a ** 2 + b ** 2\r\tcSquare ** 0.5\n\tend\r\nend";
	
	public void testGetLineDelimiter() {
		testDelimiter(EMPTY_DOCUMENT, FileHelper.DEFAULT_LINE_DELIMITER);
		testDelimiter(TEST_DOCUMENT_LF, LF);
		testDelimiter(TEST_DOCUMENT_CR, CR);
		testDelimiter(TEST_DOCUMENT_CRLF, CR + LF);
		testDelimiter(TEST_DOCUMENT_MIXED, CR + LF);
		
	}

	private void testDelimiter(String document, String expectedDelimiter){
		String resultDelimiter = FileHelper.getLineDelimiter(document);
		assertEquals(expectedDelimiter, resultDelimiter);
	}
	
}