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layout/html/tests/TestTextDOM.js

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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Netscape Public License
+ * Version 1.0 (the "NPL"); you may not use this file except in
+ * compliance with the NPL.  You may obtain a copy of the NPL at
+ * http://www.mozilla.org/NPL/
+ *
+ * Software distributed under the NPL is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
+ * for the specific language governing rights and limitations under the
+ * NPL.
+ *
+ * The Initial Developer of this code under the NPL is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 1998 Netscape Communications Corporation.  All Rights
+ * Reserved.
+ */
+
+function testInsert(text)
+{
+  text.remove(0, 99999);
+
+  // test insert into empty string
+  text.insert(0, "word");
+  if (text.data != "word") {
+    dump("testInsert Error(0): '" + text.data + "' != word\n");
+  }
+
+  // test insert into middle of string
+  text.insert(1, "Z");
+  if (text.data != "wZord") {
+    dump("testInsert Error(1): '" + text.data + "' != wZord\n");
+  }
+  text.insert(4, "Z");
+  if (text.data != "wZorZd") {
+    dump("testInsert Error(2): '" + text.data + "' != wZorZd\n");
+  }
+
+  // test insert at end of string (== append)
+  text.insert(99, "Z");
+  if (text.data != "wZorZdZ") {
+    dump("testInsert Error(3): '" + text.data + "' != wZorZdZ\n");
+  }
+
+  // test insert at start with illegal offset
+  text.insert(-9000, "first");
+  if (text.data != "firstwZorZdZ") {
+    dump("testInsert Error(4): '" + text.data + "' != firstwZorZdZ\n");
+  }
+}
+
+function testAppend(text)
+{
+  text.remove(0, 99999);
+
+  // test append into empty string
+  text.append("word");
+  if (text.data != "word") {
+    dump("testAppend Error(0): '" + text.data + "' != word\n");
+  }
+
+  // test append onto a non-empty string
+  text.append("word");
+  if (text.data != "wordword") {
+    dump("testAppend Error(1): '" + text.data + "' != wordword\n");
+  }
+}
+
+function testDelete(text)
+{
+  text.remove(0, 99999);
+  text.append("wordwo3rd");
+
+  // test delete at start of word
+  text.remove(0, 4);
+  if (text.data != "wo3rd") {
+    dump("testDelete Error(0): '" + text.data + "' != wo3rd\n");
+  }
+
+  // test delete in middle of word
+  text.remove(2, 1);
+  if (text.data != "word") {
+    dump("testDelete Error(1): '" + text.data + "' != word\n");
+  }
+
+  // test delete at end of word
+  text.remove(2, 2);
+  if (text.data != "wo") {
+    dump("testDelete Error(2): '" + text.data + "' != wo\n");
+  }
+
+  // test delete of remaining data
+  text.remove(0, 2);
+  if (text.data != "") {
+    dump("testDelete Error(3): '" + text.data + "' != ''\n");
+  }
+
+  // test invalid delete's
+  text.append("word");
+  text.remove(-100, -10);
+  if (text.data != "word") {
+    dump("testDelete Error(4): '" + text.data + "' != word\n");
+  }
+  text.remove(-100, 0);
+  if (text.data != "word") {
+    dump("testDelete Error(5): '" + text.data + "' != word\n");
+  }
+  text.remove(0, -10);
+  if (text.data != "word") {
+    dump("testDelete Error(6): '" + text.data + "' != word\n");
+  }
+  text.remove(0, 0);
+  if (text.data != "word") {
+    dump("testDelete Error(7): '" + text.data + "' != word\n");
+  }
+}
+
+function testReplace(text)
+{
+  text.remove(0, 99999);
+  text.append("word");
+
+  // replace nothing with something
+  text.replace(0, 0, "fish");
+  if (text.data != "fishword") {
+    dump("testReplace Error(0): '" + text.data + "' != fisword\n");
+  }
+
+  // replace something with nothing
+  text.replace(0, 4, "");
+  if (text.data != "word") {
+    dump("testReplace Error(1): '" + text.data + "' != word\n");
+  }
+
+  // replace nothing with something
+  text.replace(1, 1, "fish");
+  if (text.data != "wfishrd") {
+    dump("testReplace Error(2): '" + text.data + "' != wfishrd\n");
+  }
+
+  // replace something with nothing
+  text.replace(1, 4, "");
+  if (text.data != "wrd") {
+    dump("testReplace Error(3): '" + text.data + "' != wrd\n");
+  }
+
+  // replace something with something
+  text.replace(0, 1, "W");
+  text.replace(1, 1, "O");
+  text.replace(2, 1, "R");
+  text.replace(3, 1, "D");
+  if (text.data != "WORD") {
+    dump("testReplace Error(4): '" + text.data + "' != WORD\n");
+  }
+
+  // replace nothing with something
+  text.replace(4, 97, "FISH");
+  if (text.data != "WORDFISH") {
+    dump("testReplace Error(5): '" + text.data + "' != WORDFISH\n");
+  }
+
+  // test illegal count's/offset for replace
+  text.replace(-99, 4, "SWORD");
+  if (text.data != "SWORDFISH") {
+    dump("testReplace Error(6): '" + text.data + "' != SWORDFISH\n");
+  }
+}
+
+function testText(text)
+{
+  testInsert(text);
+  testAppend(text);
+  testDelete(text);
+  testReplace(text);
+}
+
+function findText(container)
+{
+  if (container.hasChildNodes()) {
+    // Find the first piece of text in the container or one of it's
+    // children and return it
+    var children = container.getChildNodes();
+    var length = children.getLength();
+    var child = children.getNextNode();
+    var count = 0;
+    while (count < length) {
+      if (child.getNodeType() == Node.TEXT) {
+        return child;
+      }
+      var text = findText(child);
+      if (null != text) {
+        return text;
+      }
+      child = children.getNextNode();
+      count++;
+    }
+  }
+  return null;
+}
+
+function findBody(node)
+{
+  if (node.getTagName() == "BODY") {
+    return node;
+  }
+  var children = node.getChildNodes();
+  return findBody(children.getNextNode());
+}
+
+var body = findBody(document.documentElement)
+var text = findText(body)
+testText(text)
+dump("Test finished\n");