Add a ImportVariousAndSavePdfWithOcr winappdriver test

NAPS2.App.Tests/Appium/AppiumTests.cs

@@ -63,4 +63,18 @@ public class AppiumTests : ContextualTests
     {
         ClickAt(_session.FindElementByName(name));
     }
+
+    protected void DoubleClickAt(WindowsElement element)
+    {
+#pragma warning disable CS0618
+        // This is apparently obsolete, but the "correct" code is 10x as complicated so whatever
+        _session.Mouse.MouseMove(element.Coordinates);
+        _session.Mouse.DoubleClick(element.Coordinates);
+#pragma warning restore CS0618
+    }
+
+    protected void DoubleClickAtName(string name)
+    {
+        DoubleClickAt(_session.FindElementByName(name));
+    }
 }

NAPS2.App.Tests/Appium/ImportAndSaveTests.cs

@@ -0,0 +1,58 @@
+using System.Threading;
+using NAPS2.App.Tests.Verification;
+using NAPS2.Sdk.Tests;
+using NAPS2.Sdk.Tests.Asserts;
+using Xunit;
+
+namespace NAPS2.App.Tests.Appium;
+
+[Collection("appium")]
+public class ImportAndSaveTests : AppiumTests
+{
+    [VerifyFact(AllowDebug = true)]
+    public void ImportVariousAndSavePdfWithOcr()
+    {
+        File.WriteAllBytes(Path.Combine(FolderPath, "word.pdf"), PdfResources.word_generated_pdf);
+        File.WriteAllBytes(Path.Combine(FolderPath, "image.pdf"), PdfResources.image_pdf);
+        File.WriteAllBytes(Path.Combine(FolderPath, "text.jpg"), BinaryResources.ocr_test);
+        var tessdata = Path.Combine(FolderPath, "components", "tesseract-4.0.0b4", "fast");
+        Directory.CreateDirectory(tessdata);
+        File.WriteAllBytes(Path.Combine(tessdata, "eng.traineddata"), BinaryResources.eng_traineddata);
+        
+        ClickAtName("Import");
+        DoubleClickAtName("word.pdf");
+        ResetMainWindow();
+        Thread.Sleep(100);
+        ClickAtName("Import");
+        DoubleClickAtName("image.pdf");
+        ResetMainWindow();
+        Thread.Sleep(100);
+        ClickAtName("Import");
+        DoubleClickAtName("text.jpg");
+        ResetMainWindow();
+        Thread.Sleep(100);
+        
+        ClickAtName("OCR");
+        ClickAtName("Make PDFs searchable using OCR");
+        ClickAtName("OK");
+        
+        ClickAtName("Save PDF");
+        ResetMainWindow();
+        var fileNameElements = _session.FindElementsByName("File name:");
+        var fileTextBox = fileNameElements.Last();
+        ClickAt(fileTextBox);
+        fileTextBox.SendKeys("test.pdf");
+        ClickAtName("Save");
+        // Wait for the save to finish
+        WaitUntilGone("Cancel");
+
+        var path = Path.Combine(FolderPath, "test.pdf");
+        PdfAsserts.AssertImages(path, 
+            PdfResources.word_p1,
+            PdfResources.word_p2,
+            ImageResources.color_image,
+            ImageResources.ocr_test);
+        PdfAsserts.AssertContainsText("ADVERTISEMENT.", path);
+        AppTestHelper.AssertNoErrorLog(FolderPath);
+    }
+}

NAPS2.Lib.Common/Paths.cs

@@ -56,7 +56,7 @@ public static class Paths
     public static string Components => EnsureFolderExists(ComponentsPath);
 
     /// <summary>
-    /// Safely deletes the NAPS2 temp folder. If other NAPS2 or NAPS2.Console processes are running, the folder will be left alone.
+    /// Safely clears the NAPS2 temp folder. If other NAPS2 or NAPS2.Console processes are running, the folder will be left alone.
     /// </summary>
     public static void ClearTemp()
     {
@@ -70,6 +70,7 @@ public static class Paths
             if (!otherNaps2Processes.Any())
             {
                 Directory.Delete(TempPath, true);
+                Directory.CreateDirectory(TempPath);
             }
         }
         catch (Exception e)

NAPS2.Lib.WinForms/WinForms/DesktopController.cs

@@ -402,6 +402,7 @@ public class DesktopController
 
     public void Import()
     {
+        // TODO: Merge this into exporthelper/dialoghelper?
         var ofd = new OpenFileDialog
         {
             Multiselect = true,
@@ -419,6 +420,11 @@ public class DesktopController
                      MiscResources.FileTypePng + @"|*.png|" +
                      MiscResources.FileTypeTiff + @"|*.tiff;*.tif"
         };
+        if (Paths.IsTestAppDataPath)
+        {
+            // For UI test automation we choose the appdata folder to find the prepared files to import
+            ofd.InitialDirectory = Paths.AppData;
+        }
         if (ofd.ShowDialog() == DialogResult.OK)
         {
             ImportFiles(ofd.FileNames);

NAPS2.Sdk/ImportExport/Pdf/PdfSharpImporter.cs

@@ -11,7 +11,7 @@ using PdfSharp.Pdf.IO;
 namespace NAPS2.ImportExport.Pdf;
 
 // TODO: We should have a "nicer" name (PdfImporter) for SDK users, or maybe have this be internal and have the public ScannedImageImporter (which should also maybe be renamed...)
-// TODO: Add tests
+// TODO: Add tests (specifically, currently it seems like importing a NAPS2 pdf is wrong, doesn't extract the image)
 public class PdfSharpImporter : IPdfImporter
 {
     static PdfSharpImporter()