1 /* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Eclipse Public License, Version 1.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.eclipse.org/org/documents/epl-v10.php 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package com.android.ide.eclipse.adt.internal.editors.layout.gle2; 17 18 import static com.android.SdkConstants.ANDROID_URI; 19 import static com.android.SdkConstants.TOOLS_URI; 20 21 import org.w3c.dom.Document; 22 import org.w3c.dom.Element; 23 24 import java.util.Arrays; 25 26 import javax.xml.parsers.DocumentBuilder; 27 import javax.xml.parsers.DocumentBuilderFactory; 28 29 import junit.framework.TestCase; 30 31 @SuppressWarnings("javadoc") 32 public class DomUtilitiesTest extends TestCase { 33 34 public void testIsEquivalent() throws Exception { 35 DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance(); 36 factory.setNamespaceAware(true); 37 factory.setValidating(false); 38 DocumentBuilder builder = factory.newDocumentBuilder(); 39 Document document1 = builder.newDocument(); 40 Document document2 = builder.newDocument(); 41 document1.appendChild(document1.createElement("root")); 42 document2.appendChild(document2.createElement("root")); 43 44 assertFalse(DomUtilities.isEquivalent(null, null)); 45 Element root1 = document1.getDocumentElement(); 46 assertFalse(DomUtilities.isEquivalent(null, root1)); 47 Element root2 = document2.getDocumentElement(); 48 assertFalse(DomUtilities.isEquivalent(root2, null)); 49 assertTrue(DomUtilities.isEquivalent(root1, root2)); 50 51 root1.appendChild(document1.createTextNode(" ")); 52 // Differences in text are NOT significant! 53 assertTrue(DomUtilities.isEquivalent(root1, root2)); 54 root2.appendChild(document2.createTextNode(" ")); 55 assertTrue(DomUtilities.isEquivalent(root1, root2)); 56 57 Element foo1 = document1.createElement("foo"); 58 Element foo2 = document2.createElement("foo"); 59 root1.appendChild(foo1); 60 assertFalse(DomUtilities.isEquivalent(root1, root2)); 61 root2.appendChild(foo2); 62 assertTrue(DomUtilities.isEquivalent(root1, root2)); 63 64 root1.appendChild(document1.createElement("bar")); 65 assertFalse(DomUtilities.isEquivalent(root1, root2)); 66 root2.appendChild(document2.createElement("bar")); 67 assertTrue(DomUtilities.isEquivalent(root1, root2)); 68 69 // Add attributes in opposite order 70 foo1.setAttribute("attribute1", "value1"); 71 foo1.setAttribute("attribute2", "value2"); 72 assertFalse(DomUtilities.isEquivalent(root1, root2)); 73 foo2.setAttribute("attribute2", "value2"); 74 foo2.setAttribute("attribute1", "valueWrong"); 75 assertFalse(DomUtilities.isEquivalent(root1, root2)); 76 foo2.setAttribute("attribute1", "value1"); 77 assertTrue(DomUtilities.isEquivalent(root1, root2)); 78 foo2.setAttributeNS(TOOLS_URI, "foo", "bar"); 79 assertTrue(DomUtilities.isEquivalent(root1, root2)); 80 foo2.setAttributeNS(ANDROID_URI, "foo", "bar"); 81 assertFalse(DomUtilities.isEquivalent(root1, root2)); 82 83 // TODO - test different tag names 84 // TODO - test different name spaces! 85 } 86 87 public void testIsContiguous() throws Exception { 88 DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance(); 89 factory.setNamespaceAware(true); 90 factory.setValidating(false); 91 DocumentBuilder builder = factory.newDocumentBuilder(); 92 Document document = builder.newDocument(); 93 document.appendChild(document.createElement("root")); 94 Element root = document.getDocumentElement(); 95 root.appendChild(document.createTextNode(" ")); 96 Element foo = document.createElement("foo"); 97 root.appendChild(foo); 98 root.appendChild(document.createTextNode(" ")); 99 Element bar = document.createElement("bar"); 100 root.appendChild(bar); 101 Element baz = document.createElement("baz"); 102 root.appendChild(baz); 103 104 assertTrue(DomUtilities.isContiguous(Arrays.asList(foo))); 105 assertTrue(DomUtilities.isContiguous(Arrays.asList(foo, bar))); 106 assertTrue(DomUtilities.isContiguous(Arrays.asList(foo, bar, baz))); 107 assertTrue(DomUtilities.isContiguous(Arrays.asList(foo, bar, baz))); 108 assertTrue(DomUtilities.isContiguous(Arrays.asList(bar, baz, foo))); 109 assertTrue(DomUtilities.isContiguous(Arrays.asList(baz, bar, foo))); 110 assertTrue(DomUtilities.isContiguous(Arrays.asList(baz, foo, bar))); 111 112 assertFalse(DomUtilities.isContiguous(Arrays.asList(foo, baz))); 113 assertFalse(DomUtilities.isContiguous(Arrays.asList(root, baz))); 114 } 115 116 public void testGetCommonAncestor() throws Exception { 117 DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance(); 118 factory.setNamespaceAware(true); 119 factory.setValidating(false); 120 DocumentBuilder builder = factory.newDocumentBuilder(); 121 Document document = builder.newDocument(); 122 123 // A 124 // / \ 125 // B C 126 // / \ 127 // D E 128 129 document.appendChild(document.createElement("A")); 130 Element a = document.getDocumentElement(); 131 assertSame(a, DomUtilities.getCommonAncestor(a, a)); 132 133 Element b = document.createElement("B"); 134 a.appendChild(b); 135 Element c = document.createElement("C"); 136 a.appendChild(c); 137 Element d = document.createElement("D"); 138 c.appendChild(d); 139 Element e = document.createElement("E"); 140 c.appendChild(e); 141 142 assertSame(a, DomUtilities.getCommonAncestor(a, b)); 143 assertSame(a, DomUtilities.getCommonAncestor(b, a)); 144 assertSame(a, DomUtilities.getCommonAncestor(b, c)); 145 assertSame(a, DomUtilities.getCommonAncestor(b, d)); 146 assertSame(a, DomUtilities.getCommonAncestor(b, e)); 147 assertSame(a, DomUtilities.getCommonAncestor(a, e)); 148 149 assertSame(c, DomUtilities.getCommonAncestor(d, e)); 150 assertSame(c, DomUtilities.getCommonAncestor(c, e)); 151 assertSame(c, DomUtilities.getCommonAncestor(d, c)); 152 assertSame(c, DomUtilities.getCommonAncestor(c, c)); 153 } 154 155 public void testGetDepth() throws Exception { 156 DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance(); 157 factory.setNamespaceAware(true); 158 factory.setValidating(false); 159 DocumentBuilder builder = factory.newDocumentBuilder(); 160 Document document = builder.newDocument(); 161 162 // A 163 // / \ 164 // B C 165 // / \ 166 // D E 167 168 document.appendChild(document.createElement("A")); 169 Element a = document.getDocumentElement(); 170 assertSame(a, DomUtilities.getCommonAncestor(a, a)); 171 Element b = document.createElement("B"); 172 a.appendChild(b); 173 Element c = document.createElement("C"); 174 a.appendChild(c); 175 Element d = document.createElement("D"); 176 c.appendChild(d); 177 Element e = document.createElement("E"); 178 c.appendChild(e); 179 180 assertEquals(0, DomUtilities.getDepth(document)); 181 182 assertEquals(1, DomUtilities.getDepth(a)); 183 assertEquals(2, DomUtilities.getDepth(b)); 184 assertEquals(2, DomUtilities.getDepth(c)); 185 assertEquals(3, DomUtilities.getDepth(d)); 186 assertEquals(3, DomUtilities.getDepth(e)); 187 } 188 189 public void testHasChildren() throws Exception { 190 DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance(); 191 factory.setNamespaceAware(true); 192 factory.setValidating(false); 193 DocumentBuilder builder = factory.newDocumentBuilder(); 194 Document document = builder.newDocument(); 195 assertFalse(DomUtilities.hasElementChildren(document)); 196 document.appendChild(document.createElement("A")); 197 Element a = document.getDocumentElement(); 198 assertFalse(DomUtilities.hasElementChildren(a)); 199 a.appendChild(document.createTextNode("foo")); 200 assertFalse(DomUtilities.hasElementChildren(a)); 201 Element b = document.createElement("B"); 202 a.appendChild(b); 203 assertTrue(DomUtilities.hasElementChildren(a)); 204 assertFalse(DomUtilities.hasElementChildren(b)); 205 } 206 } 207
