Files
cbz/tests/test_page.py
T
2026-04-06 15:01:01 +02:00

133 lines
4.9 KiB
Python

"""Tests for the PageInfo class."""
from pathlib import Path
import pytest
from cbz.constants import PageType
from cbz.exceptions import InvalidImageError
from cbz.page import PageInfo
class TestPageInfo:
"""Tests for page loading, properties and manipulation."""
def test_load_from_file(self, sample_image_path: Path) -> None:
"""Load from an image file."""
page = PageInfo.load(path=sample_image_path)
assert page is not None
assert isinstance(page.content, bytes)
assert len(page.content) > 0
assert page.name == sample_image_path.name
assert page.image_width > 0
assert page.image_height > 0
assert page.image_size > 0
assert page.suffix != ""
def test_load_with_page_type(self, sample_image_path: Path) -> None:
"""Load with a specific page type."""
page = PageInfo.load(path=sample_image_path, type=PageType.FRONT_COVER)
assert page.type == PageType.FRONT_COVER
def test_load_with_custom_name(self, sample_image_path: Path) -> None:
"""Load with a custom name."""
page = PageInfo.load(path=sample_image_path, name="custom_page.jpg")
assert page.name == "custom_page.jpg"
def test_page_content_property(self, sample_image_path: Path) -> None:
"""Content property and automatic metadata extraction."""
page = PageInfo.load(path=sample_image_path)
original = page.content
assert page.content == original
assert isinstance(page.content, bytes)
assert page.image_width > 0
assert page.image_height > 0
assert page.image_size > 0
def test_image_metadata_extraction(self, sample_image_path: Path) -> None:
"""Correct extraction of image metadata."""
page = PageInfo.load(path=sample_image_path)
assert page.image_width > 0
assert page.image_height > 0
assert page.image_size > 0
assert page.suffix != ""
assert isinstance(page.image_width, int)
assert isinstance(page.image_height, int)
assert isinstance(page.image_size, int)
def test_multiple_image_formats(self, images_dir: Path) -> None:
"""Load different image files."""
image_files = list(images_dir.glob("*.jpg"))
if not image_files:
pytest.skip("No image files found")
for image_path in image_files[:3]:
page = PageInfo.load(path=image_path)
assert page is not None
assert isinstance(page.content, bytes)
assert len(page.content) > 0
assert page.image_width > 0
assert page.image_height > 0
assert page.image_size > 0
def test_page_type_assignment(self, sample_image_path: Path) -> None:
"""Assignment of all page types."""
image_bytes = sample_image_path.read_bytes()
for page_type in PageType:
page = PageInfo.loads(data=image_bytes, type=page_type)
assert page.type == page_type
def test_page_creation_from_bytes(self, sample_image_path: Path) -> None:
"""Direct creation from bytes."""
image_bytes = sample_image_path.read_bytes()
page = PageInfo.loads(data=image_bytes, name="test_page.jpg")
assert page.content == image_bytes
assert page.name == "test_page.jpg"
assert page.image_width > 0
assert page.image_height > 0
assert page.image_size > 0
def test_page_bookmark_property(self, sample_image_path: Path) -> None:
"""Bookmark property."""
page = PageInfo.load(path=sample_image_path, bookmark="Chapter 1")
assert page.bookmark == "Chapter 1"
page_no_bookmark = PageInfo.load(path=sample_image_path)
assert page_no_bookmark.bookmark == ""
def test_page_double_page_property(self, sample_image_path: Path) -> None:
"""Double page property."""
page = PageInfo.load(path=sample_image_path, double=True)
assert page.double is True
page_no_double = PageInfo.load(path=sample_image_path)
assert page_no_double.double is False
def test_invalid_data_raises_error(self) -> None:
"""Invalid data raises InvalidImageError."""
with pytest.raises(InvalidImageError):
PageInfo.loads(data=b"not an image")
def test_empty_data_raises_error(self) -> None:
"""Empty data raises InvalidImageError."""
with pytest.raises(InvalidImageError):
PageInfo.loads(data=b" ")
def test_save_and_reload(self, sample_image_path: Path, tmp_path: Path) -> None:
"""Save and reload a page."""
page = PageInfo.load(path=sample_image_path)
save_path = tmp_path / "saved_page.jpg"
page.save(save_path)
reloaded = PageInfo.load(path=save_path)
assert reloaded.image_width == page.image_width
assert reloaded.image_height == page.image_height
assert reloaded.image_size == page.image_size