| /******************************************************************************* |
| * Copyright (c) 2004, 2008 John Krasnay and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * John Krasnay - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.wst.xml.vex.core.internal.dom; |
| |
| import org.eclipse.wst.xml.vex.core.internal.dom.GapContent; |
| |
| import junit.framework.TestCase; |
| |
| /** |
| * Test the GapContent class |
| */ |
| public class GapContentTest extends TestCase { |
| |
| public void testGapContent() throws Exception { |
| // |
| // a b (gap) c d |
| // | | | | | |
| // 0 1 2 3 4 |
| // |
| |
| GapContent content = new GapContent(2); |
| assertEquals(0, content.getLength()); |
| content.insertString(0, "a"); |
| assertEquals(1, content.getLength()); |
| content.insertString(1, "d"); |
| assertEquals(2, content.getLength()); |
| content.insertString(1, "c"); |
| assertEquals(3, content.getLength()); |
| content.insertString(1, "b"); |
| assertEquals(4, content.getLength()); |
| |
| Position pa = content.createPosition(0); |
| Position pb = content.createPosition(1); |
| Position pc = content.createPosition(2); |
| Position pd = content.createPosition(3); |
| Position pe = content.createPosition(4); |
| |
| try { |
| content.getString(-1, 1); |
| fail("expected exception"); |
| } catch (IllegalArgumentException ex) { |
| } |
| |
| try { |
| content.getString(4, 1); |
| fail("expected exception"); |
| } catch (IllegalArgumentException ex) { |
| } |
| |
| try { |
| content.getString(0, -1); |
| fail("expected exception"); |
| } catch (IllegalArgumentException ex) { |
| } |
| |
| try { |
| content.getString(0, 5); |
| fail("expected exception"); |
| } catch (IllegalArgumentException ex) { |
| } |
| |
| try { |
| content.createPosition(-1); |
| fail("expected exception"); |
| } catch (IllegalArgumentException ex) { |
| } |
| |
| try { |
| content.createPosition(5); |
| fail("expected exception"); |
| } catch (IllegalArgumentException ex) { |
| } |
| |
| assertEquals("a", content.getString(0, 1)); |
| assertEquals("b", content.getString(1, 1)); |
| assertEquals("c", content.getString(2, 1)); |
| assertEquals("d", content.getString(3, 1)); |
| |
| assertEquals("ab", content.getString(0, 2)); |
| assertEquals("bc", content.getString(1, 2)); |
| assertEquals("cd", content.getString(2, 2)); |
| |
| assertEquals("abc", content.getString(0, 3)); |
| assertEquals("bcd", content.getString(1, 3)); |
| |
| assertEquals("abcd", content.getString(0, 4)); |
| |
| // |
| // a b x (gap) y c d |
| // | | | | | | | |
| // 0 1 2 3 4 5 6 |
| // |
| content.insertString(2, "y"); |
| assertEquals(5, content.getLength()); |
| content.insertString(2, "x"); |
| assertEquals(6, content.getLength()); |
| |
| assertEquals(0, pa.getOffset()); |
| assertEquals(1, pb.getOffset()); |
| assertEquals(4, pc.getOffset()); |
| assertEquals(5, pd.getOffset()); |
| assertEquals(6, pe.getOffset()); |
| |
| Position px = content.createPosition(2); |
| Position py = content.createPosition(3); |
| |
| content.remove(2, 2); |
| |
| assertEquals(4, content.getLength()); |
| |
| assertEquals(0, pa.getOffset()); |
| assertEquals(1, pb.getOffset()); |
| assertEquals(2, px.getOffset()); |
| assertEquals(2, py.getOffset()); |
| assertEquals(2, pc.getOffset()); |
| assertEquals(3, pd.getOffset()); |
| assertEquals(4, pe.getOffset()); |
| |
| assertEquals("a", content.getString(0, 1)); |
| assertEquals("b", content.getString(1, 1)); |
| assertEquals("c", content.getString(2, 1)); |
| assertEquals("d", content.getString(3, 1)); |
| |
| assertEquals("ab", content.getString(0, 2)); |
| assertEquals("bc", content.getString(1, 2)); |
| assertEquals("cd", content.getString(2, 2)); |
| |
| assertEquals("abc", content.getString(0, 3)); |
| assertEquals("bcd", content.getString(1, 3)); |
| |
| assertEquals("abcd", content.getString(0, 4)); |
| |
| } |
| } |