Reformat using black

tests/test_epub_ncx_parsing.py

@@ -5,13 +5,14 @@ import sys
 from ebooklib import epub
 
 # Ensure we can import the module
-sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), '..')))
+sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), "..")))
 
 from abogen.book_parser import get_book_parser, EpubParser
 
+
 class TestEpubNcxParsing(unittest.TestCase):
     """
-    Focused tests for NCX navigation scenarios, ensuring legacy/compatibility 
+    Focused tests for NCX navigation scenarios, ensuring legacy/compatibility
     modes work when HTML5 Navigation is missing.
     """
 
@@ -50,9 +51,9 @@ class TestEpubNcxParsing(unittest.TestCase):
         # Add default NCX and generic spine
         book.add_item(epub.EpubNcx())
         # IMPORTANT: Do NOT add EpubNav() here, that's what we are testing!
-        
+
         book.spine = ["nav"] + epub_chapters
-        
+
         epub.write_epub(self.ncx_only_epub_path, book)
 
     def test_ncx_only_parsing(self):
@@ -63,28 +64,28 @@ class TestEpubNcxParsing(unittest.TestCase):
         # 1. Setup Data
         chapters_data = [
             ("Chapter 1", "This is the first chapter."),
-            ("Chapter 2", "This is the second chapter.")
+            ("Chapter 2", "This is the second chapter."),
         ]
         self._create_ncx_only_epub(chapters_data)
 
         # 2. Run Parser
         parser = get_book_parser(self.ncx_only_epub_path)
         parser.process_content()
-        
+
         # 3. Verify Breakdown
         # We expect detailed breakdown based on NCX
         chapters = parser.get_chapters()
-        
+
         # Should find exactly 2 chapters based on the Toc
         self.assertEqual(len(chapters), 2, "Should have 2 chapters extracted from NCX")
-        
+
         # Check Titles and Sequence
         self.assertEqual(chapters[0][1], "Chapter 1")
         self.assertEqual(chapters[1][1], "Chapter 2")
-        
+
         # Verify content was extracted
         # Note: 'src' in chapters usually points to file_name if no fragments
-        id_1 = chapters[0][0] 
+        id_1 = chapters[0][0]
         self.assertIn("This is the first chapter", parser.content_texts[id_1])
 
     def test_nested_ncx_parsing(self):
@@ -94,7 +95,7 @@ class TestEpubNcxParsing(unittest.TestCase):
         book = epub.EpubBook()
         book.set_identifier("nested_ncx")
         book.set_title("Nested NCX")
-        
+
         # Create one big file with sections
         c1 = epub.EpubHtml(title="Main Chapter", file_name="main.xhtml", lang="en")
         c1.content = """
@@ -108,33 +109,32 @@ class TestEpubNcxParsing(unittest.TestCase):
         # Manually construct nested TOC because ebooklib's default helpers are simple
         # EbookLib automatically builds NCX from book.toc
         # Nested tuple structure: (Section, (Subsection, Sub-subsection))
-        
+
         # We need to link to Fragments for this to really test nested NCX pointing to same file
         # EbookLib Link object: epub.Link(href, title, uid)
-        
+
         link_root = epub.Link("main.xhtml#intro", "Introduction", "intro")
         link_sect = epub.Link("main.xhtml#sect1", "Section 1", "sect1")
-        
+
         # Structure: Intro -> Section 1 (as child)
-        book.toc = (
-            (link_root, (link_sect, )),
-        )
-        
+        book.toc = ((link_root, (link_sect,)),)
+
         book.add_item(epub.EpubNcx())
         book.spine = ["nav", c1]
-        
+
         epub.write_epub(self.ncx_only_epub_path, book)
-        
+
         # Parse
         parser = get_book_parser(self.ncx_only_epub_path)
         parser.process_content()
-        
+
         chapters = parser.get_chapters()
-        
+
         # Depending on how the parser flattens, we should see both entries
         titles = [node[1] for node in chapters]
         self.assertIn("Introduction", titles)
         self.assertIn("Section 1", titles)
 
+
 if __name__ == "__main__":
     unittest.main()