Attachment 79886 Details for Bug 205700 – A JUnit Test for reproducing the problem

A JUnit Test for reproducing the problem

TreeViewerTest.java (text/plain), 5.02 KB, created by Lasse Knudsen

on 2007-10-08 05:27:52 EDT

(hide)

Description:

Filename:

MIME Type:

Creator: Lasse Knudsen

Created: 2007-10-08 05:27:52 EDT

Size: 5.02 KB

patch

obsolete

>import java.util.ArrayList;
>import java.util.List;
>
>import junit.framework.TestCase;
>
>import org.eclipse.jface.viewers.ITreeContentProvider;
>import org.eclipse.jface.viewers.LabelProvider;
>import org.eclipse.jface.viewers.TreeViewer;
>import org.eclipse.jface.viewers.Viewer;
>import org.eclipse.jface.viewers.ViewerSorter;
>import org.eclipse.swt.SWT;
>import org.eclipse.swt.widgets.Display;
>import org.eclipse.swt.widgets.Shell;
>
>/**
> * @author Lasse Knudsen
> * 
> */
>public class TreeViewerTest extends TestCase {
>
>    private Display display;
>
>    private TreeViewer viewer;
>
>    private TreeNode rootNode;
>
>    private final TreeNode child1 = new TreeNode("Child1");
>
>    private final TreeNode child5 = new TreeNode("Child5");
>
>    private final TreeNode child10 = new TreeNode("Child10");
>
>    /*
>     * (non-Javadoc)
>     * 
>     * @see junit.framework.TestCase#setUp()
>     */
>    @Override
>    protected void setUp() throws Exception {
>        display = new Display();
>        Shell shell = new Shell(display);
>
>        viewer = new TreeViewer(shell, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL);
>
>        viewer.setContentProvider(new InternalContentProvider());
>        viewer.setLabelProvider(new InternalLabelProvider());
>
>        viewer.setInput(createInput());
>
>        shell.open();
>    }
>
>    /*
>     * (non-Javadoc)
>     * 
>     * @see junit.framework.TestCase#tearDown()
>     */
>    @Override
>    protected void tearDown() throws Exception {
>        display.close();
>    }
>
>    public void testNoExceptionWillBeThrownWhenNoSorterIsSet() throws Exception {
>        rootNode.add(new TreeNode("Child2"));
>        rootNode.add(new TreeNode("Child3"));
>        rootNode.add(new TreeNode("Child4"));
>        rootNode.add(new TreeNode("Child6"));
>        rootNode.add(new TreeNode("Child7"));
>        rootNode.add(new TreeNode("Child8"));
>        rootNode.add(new TreeNode("Child9"));
>
>        try {
>            viewer.add(rootNode, rootNode.getChildren().toArray());
>        } catch (Exception e) {
>            fail("No Exception should have been thrown");
>        }
>    }
>
>    public void testAnExceptionWillOccurWhenASorterIsSet() throws Exception {
>        viewer.setSorter(new ViewerSorter());
>
>        rootNode.add(new TreeNode("Child2"));
>        rootNode.add(new TreeNode("Child3"));
>        rootNode.add(new TreeNode("Child4"));
>        rootNode.add(new TreeNode("Child6"));
>        rootNode.add(new TreeNode("Child7"));
>        rootNode.add(new TreeNode("Child8"));
>        rootNode.add(new TreeNode("Child9"));
>
>        try {
>            viewer.add(rootNode, rootNode.getChildren().toArray());
>            fail("An Exception should occur!");
>        } catch (IllegalArgumentException e) {
>            // expected
>        }
>    }
>
>    private Object createInput() {
>        rootNode = new TreeNode("Root");
>
>        rootNode.add(child1);
>        rootNode.add(child5);
>        rootNode.add(child10);
>
>        return rootNode;
>    }
>
>    private class TreeNode {
>
>        private final String name;
>
>        private TreeNode parent = null;
>
>        private final List<TreeNode> children = new ArrayList<TreeNode>();
>
>        public TreeNode(String name) {
>            this.name = name;
>        }
>
>        public void add(TreeNode newChild) {
>            if (newChild != null) {
>                children.add(newChild);
>            }
>        }
>
>        public List<TreeNode> getChildren() {
>            return children;
>        }
>
>        public TreeNode getParent() {
>            return parent;
>        }
>
>        public String getName() {
>            return name;
>        }
>    }
>
>    private class InternalLabelProvider extends LabelProvider {
>        public String getText(Object element) {
>            if (element instanceof TreeNode) {
>                return ((TreeNode) element).getName();
>            }
>            return null;
>        }
>    }
>
>    private class InternalContentProvider implements ITreeContentProvider {
>        public Object[] getChildren(Object parentElement) {
>            if (parentElement instanceof TreeNode) {
>                return ((TreeNode) parentElement).getChildren().toArray();
>            }
>            return new Object[0];
>        }
>
>        public Object getParent(Object element) {
>            if (element instanceof TreeNode) {
>                return ((TreeNode) element).getParent();
>            }
>            return null;
>        }
>
>        public boolean hasChildren(Object element) {
>            if (element instanceof TreeNode) {
>                return !((TreeNode) element).getChildren().isEmpty();
>            }
>            return false;
>        }
>
>        public Object[] getElements(Object inputElement) {
>            return getChildren(inputElement);
>        }
>
>        public void dispose() {
>            // nothing
>        }
>
>        public void inputChanged(@SuppressWarnings("hiding")
>        Viewer viewer, Object oldInput, Object newInput) {
>            // nothing
>        }
>    }
>
>}

Actions: View

Attachments on bug 205700: 79886