Add FileTreeOperationTest

src/main/java/app/controllers/FiletreeController.java

@@ -7,6 +7,7 @@ import javafx.scene.control.TreeView;
 import javafx.scene.input.MouseEvent;
 
 import java.io.File;
+import java.io.FileNotFoundException;
 import java.net.URL;
 import java.nio.file.Files;
 import java.nio.file.Path;
@@ -83,10 +84,14 @@ public class FiletreeController implements Initializable, Controller {
     if (event.getClickCount() == 2) {
       TreeItem<String> item = filetree.getSelectionModel().getSelectedItem();
 
-      Path path = FiletreeOperations.getPathOfTreeItem(item);
+      try {
+        Path path = FiletreeOperations.getPathOfTreeItem(item);
 
-      if (!Files.isDirectory(path)) {
-        this.eventBus.post(new OpenFileEvent(Optional.ofNullable(path)));
+        if (!Files.isDirectory(path)) {
+          this.eventBus.post(new OpenFileEvent(Optional.ofNullable(path)));
+        }
+      } catch (FileNotFoundException e) {
+        System.err.println("[ERROR]: Could not find filepath from filetree");
       }
     }
   }

src/main/java/app/service/FiletreeOperations.java

@@ -1,6 +1,7 @@
 package app.service;
 
 import java.io.File;
+import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.io.InputStream;
 import java.nio.file.Files;
@@ -19,7 +20,6 @@ public class FiletreeOperations {
 
   private static int iconSize = 20;
 
-  // FIXME: File specific icons not working properly
   // TODO: Clean up code that is not in use
   // TODO: Error check for recursiveness, and files without icons
 
@@ -111,11 +111,14 @@ public class FiletreeOperations {
     return icon;
   }
 
-  public static Path getPathOfTreeItem(TreeItem<String> item) {
-    final String rootFolderName =
+  public static Path getPathOfTreeItem(TreeItem<String> item) throws FileNotFoundException {
+    Path projectPath = 
       Model
         .getProjectPath()
-        .orElseThrow()
+        .orElseThrow(() -> new IllegalStateException());
+
+    final String rootFolderName =
+      projectPath
         .getFileName()
         .toString();
 
@@ -123,9 +126,11 @@ public class FiletreeOperations {
     while (!rootFolderName.equals(item.getValue())) {
       path = File.separator + item.getValue() + path;
       item = item.getParent();
+      if (item == null)
+        throw new FileNotFoundException();
     }
 
-    path = Model.getProjectPath().orElseThrow().toString() + path;
+    path = projectPath.toString() + path;
 
     Path pathToString = Paths.get(path);
 

src/test/java/app/service/FileTreeOperationsTest.java

@@ -0,0 +1,68 @@
+package app.service;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.fail;
+
+import java.io.FileNotFoundException;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.Optional;
+
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+import org.mockito.MockedStatic;
+import org.mockito.Mockito;
+
+import app.model.Model;
+import javafx.scene.control.TreeItem;
+
+public class FileTreeOperationsTest {
+
+  @Test
+  @DisplayName("Test generateTree")
+  public void testGenerateTree() {
+
+  }
+
+  private void generateTreeItemsFromPathsAndChild(Path root, Path filePath, TreeItem<String> file) {
+    Path traversalPath = filePath;
+    TreeItem<String> child = file;
+      while (!traversalPath.equals(root)) {
+        System.out.println(traversalPath);
+        traversalPath = traversalPath.getParent();
+        TreeItem<String> parent = new TreeItem<>(traversalPath.getFileName().toString());
+        parent.getChildren().add(child);
+        child = parent;
+      }
+  }
+
+  @Test
+  @DisplayName("Test getPathOftreeItem")
+  public void testGetPathOfTreeItem() {
+
+    try (MockedStatic<Model> model = Mockito.mockStatic(Model.class)) {
+      TreeItem<String> treeItem = new TreeItem<>("file.txt");
+
+      model.when(Model::getProjectPath).thenReturn(Optional.empty());      
+      assertThrows(IllegalStateException.class, () -> FiletreeOperations.getPathOfTreeItem(treeItem));
+
+      Path root = Paths.get("/tmp");
+      Path filePath = Paths.get("/tmp/testfolder/folder1/folder2/file.txt");
+      generateTreeItemsFromPathsAndChild(root, filePath, treeItem);
+
+      model.when(Model::getProjectPath).thenReturn(Optional.of(root));
+
+      Path pathOfTreeItem = FiletreeOperations.getPathOfTreeItem(treeItem);
+      assertEquals(filePath, pathOfTreeItem);
+
+      Path illegalRoot = Paths.get("/var");
+      model.when(Model::getProjectPath).thenReturn(Optional.of(illegalRoot));
+      assertThrows(FileNotFoundException.class, () -> FiletreeOperations.getPathOfTreeItem(treeItem));
+
+    } catch (FileNotFoundException e) {
+      fail("Paths did not match!");
+    }
+  }
+  
+}

src/test/java/app/service/LanguageOperationsTest.java

@@ -141,8 +141,8 @@ class TestClass {
       .create();
 
   @Test
-  @DisplayName("")
-  public void testSyntaxHighlighting() {
+  @DisplayName("test syntaxHighlight")
+  public void testSyntaxHighlight() {
     StyleSpans<Collection<String>> highlightData =
       LanguageOperations.syntaxHighlight(javaCode, new Java());