Imported Upstream version 5.2.0.179

Former-commit-id: a536d4f20e27294d8bbc2184d75f3a22364f7ba1

external/api-doc-tools/monodoc/Test/Monodoc/TreeTest.cs

@@ -0,0 +1,44 @@
+using System;
+using System.IO;
+using System.Linq;
+using System.Collections.Generic;
+using System.Runtime.CompilerServices;
+
+using NUnit.Framework;
+
+using Monodoc;
+
+namespace MonoTests.Monodoc
+{
+	[TestFixture]
+	public class TreeTest
+	{
+		[Test]
+		public void TestLoadingTree_2_10 ()
+		{
+			TestTreeLoading ("tree-from-2-10.tree", 0, 2);
+		}
+
+		[Test]
+		public void TestLoadingTree_3_0_old ()
+		{
+			TestTreeLoading ("tree-from-3-0-old.tree", 1, 2);
+		}
+
+		[Test]
+		public void TestLoadingTree_3_0 ()
+		{
+			TestTreeLoading ("tree-from-3-0.tree", 1, 2);
+		}
+
+		void TestTreeLoading (string treeFileName, int expectedVersion, int expectedNodeCount, [CallerFilePath] string baseDir = "")
+		{
+			var filePath = Path.Combine (Path.GetDirectoryName (baseDir), "..", "monodoc_test", "trees", treeFileName);
+
+			var tree = new Tree (null, filePath);
+			Assert.AreEqual (expectedVersion, tree.VersionNumber);
+			Assert.IsNotNull (tree.RootNode);
+			Assert.AreEqual (expectedNodeCount, tree.RootNode.ChildNodes.Count);
+		}
+	}
+}