import io import zipfile from unittest.mock import patch import pytest from nodes.epub_loader import OmniVoiceEpubLoader # Capture the real ZipFile class BEFORE any patching so epub_opener can use it # without hitting the patch and causing infinite recursion. _RealZipFile = zipfile.ZipFile _CONTAINER_XML = """ """ def make_fake_epub(chapters): """chapters: list of (title, body_html). Returns EPUB bytes.""" buf = io.BytesIO() with zipfile.ZipFile(buf, 'w') as z: z.writestr('mimetype', 'application/epub+zip') z.writestr('META-INF/container.xml', _CONTAINER_XML) items = "\n".join( f'' for i in range(len(chapters)) ) spine = "\n".join(f'' for i in range(len(chapters))) opf = f""" {items} {spine} """ z.writestr('OEBPS/content.opf', opf) for i, (title, body) in enumerate(chapters): z.writestr(f'OEBPS/ch{i}.xhtml', f'{title}

{title}

{body}') buf.seek(0) return buf.read() def epub_opener(epub_bytes): def _open(path, mode='r'): return _RealZipFile(io.BytesIO(epub_bytes), mode) return _open def test_input_types_structure(): inputs = OmniVoiceEpubLoader.INPUT_TYPES() req = inputs["required"] assert "epub_path" in req assert req["epub_path"][0] == "STRING" assert "chapter_start" in req assert req["chapter_start"][0] == "INT" assert "chapter_end" in req assert req["chapter_end"][0] == "INT" def test_return_types(): assert OmniVoiceEpubLoader.RETURN_TYPES == ("STRING", "STRING") assert OmniVoiceEpubLoader.RETURN_NAMES == ("text", "chapter_list") def test_chapter_extraction_basic(): epub = make_fake_epub([("Intro", "

Hello world

"), ("Chapter One", "

Body here

")]) with patch('nodes.epub_loader.zipfile.ZipFile', side_effect=epub_opener(epub)): text, chapter_list = OmniVoiceEpubLoader().load_epub('/fake.epub', 1, 2) assert "Hello world" in text assert "Body here" in text assert "---" in text assert len(chapter_list.strip().splitlines()) == 2 def test_chapter_range_single(): epub = make_fake_epub([("One", "

First

"), ("Two", "

Second

"), ("Three", "

Third

")]) with patch('nodes.epub_loader.zipfile.ZipFile', side_effect=epub_opener(epub)): text, _ = OmniVoiceEpubLoader().load_epub('/fake.epub', 2, 2) assert "Second" in text assert "First" not in text assert "Third" not in text def test_chapter_list_contains_all(): epub = make_fake_epub([("A", ""), ("B", ""), ("C", "")]) with patch('nodes.epub_loader.zipfile.ZipFile', side_effect=epub_opener(epub)): _, chapter_list = OmniVoiceEpubLoader().load_epub('/fake.epub', 2, 2) lines = chapter_list.strip().splitlines() assert len(lines) == 3 assert lines[0].startswith("1.") assert lines[2].startswith("3.") def test_range_clamping_high(): epub = make_fake_epub([("A", "

aaa

"), ("B", "

bbb

")]) with patch('nodes.epub_loader.zipfile.ZipFile', side_effect=epub_opener(epub)): text, _ = OmniVoiceEpubLoader().load_epub('/fake.epub', 1, 99) assert "aaa" in text and "bbb" in text def test_range_clamping_end_below_start(): epub = make_fake_epub([("A", "

aaa

"), ("B", "

bbb

")]) with patch('nodes.epub_loader.zipfile.ZipFile', side_effect=epub_opener(epub)): text, _ = OmniVoiceEpubLoader().load_epub('/fake.epub', 2, 1) assert "bbb" in text assert "aaa" not in text def test_missing_title_fallback(): buf = io.BytesIO() with zipfile.ZipFile(buf, 'w') as z: z.writestr('mimetype', 'application/epub+zip') z.writestr('META-INF/container.xml', _CONTAINER_XML) z.writestr('OEBPS/content.opf', """ """) z.writestr('OEBPS/ch0.xhtml', '

No title here

') buf.seek(0) with patch('nodes.epub_loader.zipfile.ZipFile', side_effect=epub_opener(buf.read())): _, chapter_list = OmniVoiceEpubLoader().load_epub('/fake.epub', 1, 1) assert "1. Chapter 1" in chapter_list def test_script_style_stripped(): epub = make_fake_epub([("Test", '

clean

')]) with patch('nodes.epub_loader.zipfile.ZipFile', side_effect=epub_opener(epub)): text, _ = OmniVoiceEpubLoader().load_epub('/fake.epub', 1, 1) assert "alert" not in text assert "color" not in text assert "clean" in text