public void AppendToPathTest()
{
Uri baseUri = new("ftp://testing");
Uri actual = UriUtility.AppendToPath(baseUri, string.Empty);
Assert.AreEqual(baseUri, actual);
actual = UriUtility.AppendToPath(baseUri, "Folder1");
Assert.AreEqual(new Uri(baseUri.ToString() + "Folder1"), actual);
actual = UriUtility.AppendToPath(baseUri, "/Folder1");
Assert.AreEqual(new Uri(baseUri.ToString() + "Folder1"), actual);
actual = UriUtility.AppendToPath(baseUri, "File.txt");
Assert.AreEqual(new Uri(baseUri.ToString() + "File.txt"), actual);
// Test using a file path that ends with '\'. In URIs, '\' should get converted to '/'.
baseUri = new Uri(@"C:\");
string expectedBase = "file:///C:/";
actual = UriUtility.AppendToPath(baseUri, string.Empty);
Assert.AreEqual(expectedBase, actual.ToString());
actual = UriUtility.AppendToPath(baseUri, "Folder1");
Assert.AreEqual(new Uri(expectedBase + "Folder1"), actual);
// The base ends with '/' and the new part starts with '/'.
actual = UriUtility.AppendToPath(baseUri, "/Folder1");
Assert.AreEqual(new Uri(expectedBase + "Folder1"), actual);
actual = UriUtility.AppendToPath(baseUri, "File.txt");
Assert.AreEqual(new Uri(expectedBase + "File.txt"), actual);
// Make sure backslashes are normalized to forward slashes correctly.
actual = UriUtility.AppendToPath(baseUri, @"PathA\PathB");
Assert.AreEqual(new Uri(expectedBase + "PathA/PathB"), actual);
// Make sure the leading backslash is handled correctly.
actual = UriUtility.AppendToPath(baseUri, @"\PathA\PathB\");
Assert.AreEqual(new Uri(expectedBase + "PathA/PathB/"), actual);
}