public void TestElementHelpers() { Exception e = null; //GetAbsolutePath SimpleElement root = new SimpleElement(); Assert.AreEqual(XmlHelper.GetAbsolutePath(root), "/"); root.Name = "root"; Assert.AreEqual(XmlHelper.GetAbsolutePath(root), "/root"); SimpleElement se = new SimpleElement("child"); se.Parent = root; Assert.AreEqual(XmlHelper.GetAbsolutePath(se), "/root/child"); try { XmlHelper.GetAbsolutePath(null); } catch (Exception ex) { e = ex; } Assert.IsNotNull(e); Assert.IsInstanceOf(typeof(ArgumentNullException), e); //IsEmpty se = new SimpleElement(); Assert.IsTrue(XmlHelper.IsEmpty(se)); se.SetString("value"); Assert.IsFalse(XmlHelper.IsEmpty(se)); se.SetString(null); Assert.IsTrue(XmlHelper.IsEmpty(se)); se.AddElement("name"); Assert.IsFalse(XmlHelper.IsEmpty(se)); se.ElementList.Clear(); Assert.IsTrue(XmlHelper.IsEmpty(se)); se.AddAttribute("attr"); Assert.IsFalse(XmlHelper.IsEmpty(se)); //GetElement se = new SimpleElement(); Assert.IsNull(XmlHelper.GetElement(se, "child1")); se.AddElement("child1"); se.AddElement("child2"); Assert.IsNotNull(XmlHelper.GetElement(se, "child1")); e = null; try { XmlHelper.GetElement(se, "&invalid"); } catch (Exception ex) { e = ex; } Assert.IsNotNull(e); Assert.IsInstanceOf(typeof(ArgumentException), e); //FindElement root = new SimpleElement("root"); IXmlElement child1 = root.AddElement("child1"); IXmlElement child2 = child1.AddElement("child2"); string path = "/child1"; Assert.AreEqual(child1, XmlHelper.FindElement(root, path)); Assert.AreEqual(child1, XmlHelper.FindElement(child1, path)); path = "child2"; Assert.IsNull(XmlHelper.FindElement(root, path)); Assert.AreEqual(child2, XmlHelper.FindElement(child1, path)); path = "../child1"; Assert.IsNull(XmlHelper.FindElement(child2, path)); Assert.AreEqual(child1, XmlHelper.FindElement(child1, path)); e = null; try { XmlHelper.FindElement(root, null); } catch (Exception ex) { e = ex; } Assert.IsNotNull(e); Assert.IsInstanceOf(typeof(ArgumentException), e); e = null; try { XmlHelper.FindElement(root, path); } catch (Exception ex) { e = ex; } Assert.IsNotNull(e); Assert.IsInstanceOf(typeof(ArgumentException), e); //FindElement with value root = new SimpleElement(); child1 = root.AddElement("child1"); child1.SetString("value1"); root.AddElement("child1").SetString("value2"); child2 = child1.AddElement("child2"); path = "/child1"; Assert.AreEqual(child1, XmlHelper.FindElement(root, path, "value1")); Assert.IsNull(XmlHelper.FindElement(root, path, "valueX")); path = "child2"; Assert.IsNull(XmlHelper.FindElement(root, path, null)); Assert.AreEqual(child2, XmlHelper.FindElement(child1, path, null)); path = "../child1"; Assert.IsNull(XmlHelper.FindElement(child2, path, null)); Assert.AreNotEqual(child1, XmlHelper.FindElement(child1, path, "value2")); path = "child2/../child2"; Assert.IsNull(XmlHelper.FindElement(child1, path, 5)); Assert.AreEqual(child2, XmlHelper.FindElement(child1, path, null)); e = null; try { XmlHelper.FindElement(null, path, null); } catch (Exception ex) { e = ex; } Assert.IsNotNull(e); Assert.IsInstanceOf(typeof(ArgumentException), e); //EnsureElement root = new SimpleElement("root"); child1 = root.AddElement("child1"); child1.AddElement("child2"); path = "/child1"; Assert.AreEqual(root.ElementList.Count, 1); Assert.AreEqual(child1, XmlHelper.EnsureElement(root, path)); path = "/child3"; Assert.IsNotNull(XmlHelper.EnsureElement(root, path)); Assert.AreEqual(root.ElementList.Count, 2); path = "/child3/../child4"; Assert.IsNotNull(XmlHelper.EnsureElement(root, path)); Assert.AreEqual(root.ElementList.Count, 3); e = null; try { XmlHelper.EnsureElement(null, path); } catch (Exception ex) { e = ex; } Assert.IsNotNull(e); Assert.IsInstanceOf(typeof(ArgumentException), e); e = null; try { XmlHelper.EnsureElement(root, "../child1"); } catch (Exception ex) { e = ex; } Assert.IsNotNull(e); Assert.IsInstanceOf(typeof(ArgumentException), e); //AddElements root = new SimpleElement(); Assert.AreEqual(root.ElementList.Count, 0); IList elements = new ArrayList(); elements.Add(new SimpleElement("el1")); elements.Add(new SimpleElement("el2")); elements.Add(new SimpleElement("el3")); XmlHelper.AddElements(root, elements.GetEnumerator()); Assert.AreEqual(root.ElementList.Count, 3); //RemoveElement root = new SimpleElement(); Assert.AreEqual(root.ElementList.Count, 0); int result = XmlHelper.RemoveElement(root, "child"); Assert.AreEqual(result, 0); root.AddElement("child"); root.AddElement("child"); root.AddElement("child2"); Assert.AreEqual(root.ElementList.Count, 3); result = XmlHelper.RemoveElement(root, "child"); Assert.AreEqual(result, 2); Assert.AreEqual(root.ElementList.Count, 1); //ReplaceElement root = new SimpleElement("root"); root.AddElement("child1"); root.AddElement("child2"); Assert.AreEqual(root.ElementList.Count, 2); Assert.IsNull(root.GetElement("child1").Value); IXmlElement replaceEl = new SimpleElement("child1", "value"); bool replaced = XmlHelper.ReplaceElement(root, replaceEl); Assert.IsTrue(replaced); Assert.AreEqual(root.GetElement("child1").GetString(), replaceEl.GetString()); Assert.AreEqual(root.ElementList.Count, 2); replaceEl = new SimpleElement("child3"); replaced = XmlHelper.ReplaceElement(root, replaceEl); Assert.IsFalse(replaced); Assert.AreEqual(root.ElementList.Count, 3); }