Fix option to "Search for unlinked local files" for new library (#12738)

Disables the option to "Search for unlinked local files"
in the Lookup menu before the newly created library is
saved as the action shold only be available when the
.bib file path is known
Fixes #12558

Co-authored-by: Christoph <siedlerkiller@gmail.com>
Co-authored-by: Oliver Kopp <kopp.dev@gmail.com>

Author: 3 people

CHANGELOG.md

@@ -77,6 +77,7 @@ Note that this project **does not** adhere to [Semantic Versioning](https://semv
 - We fixed an issue where month values 21–24 (ISO 8601-2019 season codes) in Biblatex date fields were not recognized as seasons during parsing. [#12437](https://github.com/JabRef/jabref/issues/12437)
 - We fixed an issue where migration of "Search groups" would fail with an exception when the search query is invalid. [#12555](https://github.com/JabRef/jabref/issues/12555)
 - We fixed an issue where not all linked files from BibDesk in the field `bdsk-file-...` were parsed. [#12555](https://github.com/JabRef/jabref/issues/12555)
+- We fixed an issue where it was possible to select "Search for unlinked local files" for a new (unsaved) library. [#12558](https://github.com/JabRef/jabref/issues/12558)
 - We fixed an issue where user-defined keyword separator does not apply to Merge Groups. [#12535](https://github.com/JabRef/jabref/issues/12535)
 - We fixed an issue where duplicate items cannot be removed correctly when merging groups or keywords. [#12585](https://github.com/JabRef/jabref/issues/12585)
 - We fixed an issue where JabRef displayed an incorrect deletion notification when canceling entry deletion [#12645](https://github.com/JabRef/jabref/issues/12645)

src/main/java/org/jabref/gui/externalfiles/FindUnlinkedFilesAction.java

@@ -4,7 +4,7 @@
 import org.jabref.gui.StateManager;
 import org.jabref.gui.actions.SimpleCommand;
 
-import static org.jabref.gui.actions.ActionHelper.needsDatabase;
+import static org.jabref.gui.actions.ActionHelper.needsSavedLocalDatabase;
 
 public class FindUnlinkedFilesAction extends SimpleCommand {
 
@@ -15,7 +15,7 @@ public FindUnlinkedFilesAction(DialogService dialogService, StateManager stateMa
         this.dialogService = dialogService;
         this.stateManager = stateManager;
 
-        this.executable.bind(needsDatabase(this.stateManager));
+        this.executable.bind(needsSavedLocalDatabase(this.stateManager));
     }
 
     @Override

src/test/java/org/jabref/gui/externalfiles/FindUnlinkedFilesActionTest.java

@@ -0,0 +1,67 @@
+package org.jabref.gui.externalfiles;
+
+import java.nio.file.Path;
+import java.util.Optional;
+
+import org.jabref.gui.DialogService;
+import org.jabref.gui.StateManager;
+import org.jabref.logic.shared.DatabaseLocation;
+import org.jabref.model.database.BibDatabaseContext;
+
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.mockito.Mockito.when;
+
+class FindUnlinkedFilesActionTest {
+
+    @Mock
+    private DialogService dialogService;
+
+    @Mock
+    private BibDatabaseContext databaseContext;
+
+    private StateManager stateManager;
+    private FindUnlinkedFilesAction action;
+
+    @BeforeEach
+    void setUp() {
+        MockitoAnnotations.openMocks(this);
+        stateManager = new StateManager();
+        action = new FindUnlinkedFilesAction(dialogService, stateManager);
+    }
+
+    @Test
+    void isEnabledWhenNewDatabaseIsSavedTest() {
+        when(databaseContext.getDatabasePath()).thenReturn(Optional.of(Path.of("test.bib")));
+        when(databaseContext.getLocation()).thenReturn(DatabaseLocation.LOCAL);
+
+        stateManager.activeDatabaseProperty().setValue(Optional.of(databaseContext));
+
+        assertTrue(action.executableProperty().get());
+    }
+
+    @Test
+    void isDisabledWhenNewDatabasePathIsEmptyTest() {
+        when(databaseContext.getDatabasePath()).thenReturn(Optional.empty());
+        when(databaseContext.getLocation()).thenReturn(DatabaseLocation.LOCAL);
+
+        stateManager.activeDatabaseProperty().setValue(Optional.of(databaseContext));
+
+        assertFalse(action.executableProperty().get());
+    }
+
+    @Test
+    void isDisabledWhenNewDatabaseIsNotLocalTest() {
+        when(databaseContext.getDatabasePath()).thenReturn(Optional.of(Path.of("test.bib")));
+        when(databaseContext.getLocation()).thenReturn(DatabaseLocation.SHARED);
+
+        stateManager.activeDatabaseProperty().setValue(Optional.of(databaseContext));
+
+        assertFalse(action.executableProperty().get());
+    }
+}