test.java

/*
 * Author: Frido Koch
 * Email: [email protected]
 * License: CC BY-NC-SA 3.0 DE 
 * http://creativecommons.org/licenses/by-nc-sa/3.0/de/
 */
package sheet10;

import static org.junit.Assert.*;

import java.io.IOException;
import java.io.StringReader;
import java.io.StringWriter;

import org.junit.Test;

public class XmlTreeTest extends XmlTree {

  /*
		<xmllight>
			<nodename2>
				<value_name1=value>
				<value_name2=value>
			</nodename2>
			<nodename1>
				<a>
					<b>
						<c>
							<value_name1=value>
						</c>
					</b>
				</a>
				<value_name1=3242>
				<value_name2=value>
			</nodename1>
			<value_name1=value>
		</xmllight>
	 */
	final static String validXML = "<xmllight><nodename1><value_name1=3 24 2><a><b><c><value_name1=value></c></b></a><value_name2=value></nodename1><nodename2><value_name1=value><value_name2=value></nodename2><value_name1=value></xmllight>";
	
	//unclosed tags
	/*
		<xmllight>
			<nodename2>
				<value_name1=value>
				<value_name2=value>
			</nodename2>
			<nodename1>
				<a>
					<b>
						<c>
							<value_name1=value>
						</c>
						<- </b> is missing
				</a>
				<value_name1=3242>
				<value_name2=value>
			</nodename1>
			<value_name1=value>
		</xmllight>
	 */
	final static String invalidXmlA = "<xmllight><nodename1><value_name1=3 24 2><a><b><c><value_name1=value></c></a><value_name2=value></nodename1><nodename2><value_name1=value><value_name2=value></nodename2><value_name1=value></xmllight>";
	
	//invalid value
	/*
		<xmllight>
			<nodename2>
				<value_name1=value>
				<value_name2=value>
			</nodename2>
			<nodename1>
				<a>
					<b>
						<c>
							<value_name1=> <- Empty value
						</c>
					</b>
				</a>
				<value_name1=3242>
				<value_name2=value>
			</nodename1>
			<value_name1=value>
		</xmllight>
	 */
	final static String invalidXmlB = "<xmllight><nodename1><value_name1=3 24 2><a><b><c><value_name1=></c></b></a><value_name2=value></nodename1><nodename2><value_name1=value><value_name2=value></nodename2><value_name1=value></xmllight>";
	
	
	//Duplicate tags
	/*
		<xmllight>
			<nodename2>
				<value_name1=value>
				<value_name2=value>
			</nodename2>
			<nodename2>
				<a>
					<b>
						<c>
							<value_name1=value>
						</c>
					</b>
				</a>
				<value_name1=3242>
				<value_name2=value>
			</nodename2>
			<value_name1=value>
		</xmllight>
	 */
	final static String invalidXmlC = "<xmllight><nodename2><value_name1=3 24 2><a><b><c><value_name1=value></c></b></a><value_name2=value></nodename2><nodename2><value_name1=value><value_name2=value></nodename2><value_name1=value></xmllight>";
	
	
	@Test
	public void testLoad() {
		try {
			XmlTree.load(new StringReader(XmlTreeTest.validXML));
		} catch (MisformatedInputException e) {
			fail("Input xml should be valid : " + e);
		} catch (AlreadyAvailable e) {
			fail("Input xml should be valid : " + e);
		} catch (IOException e) {
			fail("Input stream should be readable : " + e);
		}
		
	}
	
	@Test(expected = MisformatedInputException.class)
	public void testLoadWithEmptyString() throws MisformatedInputException, AlreadyAvailable, IOException {
		XmlTree.load(new StringReader(""));
	}
	
	@Test(expected = MisformatedInputException.class)
	public void testLoadWithinvalidXmlA() throws MisformatedInputException, AlreadyAvailable, IOException {
		XmlTree.load(new StringReader(XmlTreeTest.invalidXmlA));
	}
	
	@Test(expected = MisformatedInputException.class)
	public void testLoadWithinvalidXmlB() throws MisformatedInputException, AlreadyAvailable, IOException {
		XmlTree.load(new StringReader(XmlTreeTest.invalidXmlB));
	}
	
	@Test(expected = AlreadyAvailable.class)
	public void testLoadWithinvalidXmlC() throws MisformatedInputException, AlreadyAvailable, IOException {
		XmlTree.load(new StringReader(XmlTreeTest.invalidXmlC));
	}
	
	@Test
	public void testSave()	{
		try {
			XmlTree t1 = XmlTree.load(new StringReader(XmlTreeTest.validXML));
			StringWriter out = new StringWriter();
	        t1.safe(out);
	        
	        XmlTree t2 = XmlTree.load(new StringReader(out.toString()));
	        
	        assertEquals(t2.toString(), t1.toString());
			
		} catch (MisformatedInputException e) {
			fail("Input xml should be valid : " + e);
		} catch (AlreadyAvailable e) {
			fail("Input xml should be valid : " + e);
		} catch (IOException e) {
			fail("Input stream should be valid : " + e);
		}
	}
	
	@Test
	public void testGetNode()	{
		
        try {
			XmlTree t = XmlTree.load(new StringReader(XmlTreeTest.validXML));
	        t.getNode("nodename1");
			
		} catch (MisformatedInputException e) {
			fail("Input xml should be valid : " + e);
		} catch (AlreadyAvailable e) {
			fail("Input xml should be valid : " + e);
		} catch (IOException e) {
			fail("Input stream should be valid : " + e);
		} catch (NotAvailable e) {
			fail("'nodename1' exists and must be available : " + e);
		} catch (NoNodeException e) {
			fail("Root element must be a node! : " + e);
		}

	}
	
	@Test(expected = NotAvailable.class)
	public void testGetNodeWithInvalidTag() throws MisformatedInputException, AlreadyAvailable, IOException, NotAvailable, NoNodeException	{
		XmlTree t = XmlTree.load(new StringReader(XmlTreeTest.validXML));
        t.getNode("nodename9");
	}
	
	@Test(expected = NoNodeException.class)
	public void testGetNodeWithValue() throws MisformatedInputException, AlreadyAvailable, IOException, NotAvailable, NoNodeException	{
		XmlTree t = XmlTree.load(new StringReader(XmlTreeTest.validXML));
        t.getNode("value_name1").getNode("abc");
	}
	
	@Test
	public void testGetValue()	{
        try {
			XmlTree t = XmlTree.load(new StringReader(XmlTreeTest.validXML));
	        String result = t.getNode("value_name1").getValue();
	        assertEquals("value", result);
			
		} catch (MisformatedInputException e) {
			fail("Input xml should be valid : " + e);
		} catch (AlreadyAvailable e) {
			fail("Input xml should be valid : " + e);
		} catch (IOException e) {
			fail("Input stream should be valid : " + e);
		} catch (NotAvailable e) {
			fail("'value_name1' exists and must be available : " + e);
		} catch (NoNodeException e) {
			fail("Root element must be a node! : " + e);
		} catch (NoValueException e) {
			fail("'value_name1' must hava a value : " + e);
		}
	}
	
	@Test(expected = NoValueException.class)
	public void testGetValueWithNode() throws MisformatedInputException, AlreadyAvailable, IOException, NoValueException, NotAvailable, NoNodeException	{
		XmlTree t = XmlTree.load(new StringReader(XmlTreeTest.validXML));
        t.getNode("nodename2").getValue();
	}
	
	@Override
	protected String toString(String name, String indent) {
		// TODO Auto-generated method stub
		return null;
	}

}