327 lines
12 KiB
Python
327 lines
12 KiB
Python
"""
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Unit tests for the new Page implementation to verify it meets the requirements:
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1. Accepts a PageStyle that defines borders, line spacing and inter-block spacing
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2. Makes an image canvas
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3. Provides a method for accepting child objects
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4. Provides methods for determining canvas size and border size
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5. Has a method that calls render on all children
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6. Has a method to query a point and determine which child it belongs to
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"""
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import unittest
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import numpy as np
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from PIL import Image, ImageDraw
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from pyWebLayout.concrete.page import Page
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from pyWebLayout.style.page_style import PageStyle
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from pyWebLayout.style.fonts import Font
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from pyWebLayout.core.base import Renderable, Queriable
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class SimpleTestRenderable(Renderable, Queriable):
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"""A simple test renderable for testing the page system"""
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def __init__(self, text: str, size: tuple = (100, 50)):
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self._text = text
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self.size = size
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self._origin = np.array([0, 0])
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def render(self):
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"""Render returns None - drawing is done via the page's draw object"""
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return None
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class TestPageImplementation(unittest.TestCase):
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"""Test cases for the Page class implementation"""
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def setUp(self):
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"""Set up test fixtures"""
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self.basic_style = PageStyle(
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border_width=2,
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border_color=(255, 0, 0),
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line_spacing=8,
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inter_block_spacing=20,
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padding=(15, 15, 15, 15),
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background_color=(240, 240, 240)
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)
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self.page_size = (800, 600)
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def test_page_creation_with_style(self):
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"""Test creating a page with a PageStyle"""
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page = Page(size=self.page_size, style=self.basic_style)
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self.assertEqual(page.size, self.page_size)
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self.assertEqual(page.style, self.basic_style)
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self.assertEqual(page.border_size, 2)
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def test_page_creation_without_style(self):
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"""Test creating a page without a PageStyle (should use defaults)"""
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page = Page(size=self.page_size)
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self.assertEqual(page.size, self.page_size)
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self.assertIsNotNone(page.style)
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def test_page_canvas_and_content_sizes(self):
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"""Test that page correctly calculates canvas and content sizes"""
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style = PageStyle(
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border_width=5,
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padding=(10, 20, 30, 40) # top, right, bottom, left
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)
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page = Page(size=self.page_size, style=style)
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# Canvas size should be page size minus borders
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expected_canvas_size = (790, 590) # 800-10, 600-10 (border on both sides)
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self.assertEqual(page.canvas_size, expected_canvas_size)
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# Content size should be canvas minus padding
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expected_content_size = (730, 550) # 790-60, 590-40 (padding left+right, top+bottom)
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self.assertEqual(page.content_size, expected_content_size)
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def test_page_add_remove_children(self):
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"""Test adding and removing children from the page"""
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page = Page(size=self.page_size)
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# Initially no children
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self.assertEqual(len(page.children), 0)
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# Add children
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child1 = SimpleTestRenderable("Child 1")
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child2 = SimpleTestRenderable("Child 2")
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page.add_child(child1)
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self.assertEqual(len(page.children), 1)
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self.assertIn(child1, page.children)
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page.add_child(child2)
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self.assertEqual(len(page.children), 2)
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self.assertIn(child2, page.children)
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# Test method chaining
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child3 = SimpleTestRenderable("Child 3")
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result = page.add_child(child3)
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self.assertIs(result, page) # Should return self for chaining
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self.assertEqual(len(page.children), 3)
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self.assertIn(child3, page.children)
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# Remove childce you’ll notice is that responses don’t stream character-by-character like other providers. Instead, Claude Code processes your full request before sending back the complete response.
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removed = page.remove_child(child2)
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self.assertTrue(removed)
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self.assertEqual(len(page.children), 2)
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self.assertNotIn(child2, page.children)
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# Try to remove non-existent child
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removed = page.remove_child(child2)
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self.assertFalse(removed)
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# Clear all children
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page.clear_children()
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self.assertEqual(len(page.children), 0)
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def test_page_render(self):
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"""Test that page renders and creates a canvas"""
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style = PageStyle(
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border_width=2,
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border_color=(255, 0, 0),
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background_color=(255, 255, 255)
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)
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page = Page(size=(200, 150), style=style)
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# Add a child
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child = SimpleTestRenderable("Test child")
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page.add_child(child)
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# Render the page
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image = page.render()
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# Check that we got an image
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self.assertIsInstance(image, Image.Image)
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self.assertEqual(image.size, (200, 150))
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self.assertEqual(image.mode, 'RGBA')
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# Check that draw object is available
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self.assertIsNotNone(page.draw)
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def test_page_query_point(self):
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"""Test querying points to find children"""
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page = Page(size=(400, 300))
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# Add children with known positions and sizes
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child1 = SimpleTestRenderable("Child 1", (100, 50))
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child2 = SimpleTestRenderable("Child 2", (80, 40))
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page.add_child(child1).add_child(child2)
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# Query points
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# Point within first child
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result = page.query_point((90, 30))
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self.assertIsNotNone(result)
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self.assertEqual(result.object, child1)
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# Point within second child
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result = page.query_point((30, 30))
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self.assertIsNotNone(result)
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self.assertEqual(result.object, child2)
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# Point outside any child - returns QueryResult with object_type "empty"
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result = page.query_point((300, 250))
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self.assertIsNotNone(result)
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self.assertEqual(result.object_type, "empty")
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def test_page_in_object(self):
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"""Test that page correctly implements in_object"""
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page = Page(size=(400, 300))
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# Points within page bounds
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self.assertTrue(page.in_object((0, 0)))
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self.assertTrue(page.in_object((200, 150)))
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self.assertTrue(page.in_object((399, 299)))
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# Points outside page bounds
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self.assertFalse(page.in_object((-1, 0)))
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self.assertFalse(page.in_object((0, -1)))
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self.assertFalse(page.in_object((400, 299)))
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self.assertFalse(page.in_object((399, 300)))
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def test_page_with_borders(self):
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"""Test page rendering with borders"""
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style = PageStyle(
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border_width=3,
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border_color=(128, 128, 128),
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background_color=(255, 255, 255)
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)
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page = Page(size=(100, 100), style=style)
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image = page.render()
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# Check that image was created
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self.assertIsInstance(image, Image.Image)
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self.assertEqual(image.size, (100, 100))
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# The border should be drawn but we can't easily test pixel values
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# Just verify the image exists and has the right properties
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def test_page_border_size_property(self):
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"""Test that border_size property returns correct value"""
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# Test with border
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style_with_border = PageStyle(border_width=5)
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page_with_border = Page(size=self.page_size, style=style_with_border)
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self.assertEqual(page_with_border.border_size, 5)
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# Test without border
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style_no_border = PageStyle(border_width=0)
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page_no_border = Page(size=self.page_size, style=style_no_border)
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self.assertEqual(page_no_border.border_size, 0)
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def test_page_style_properties(self):
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"""Test that page correctly exposes style properties"""
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page = Page(size=self.page_size, style=self.basic_style)
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# Test that style properties are accessible
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self.assertEqual(page.style.border_width, 2)
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self.assertEqual(page.style.border_color, (255, 0, 0))
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self.assertEqual(page.style.line_spacing, 8)
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self.assertEqual(page.style.inter_block_spacing, 20)
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self.assertEqual(page.style.padding, (15, 15, 15, 15))
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self.assertEqual(page.style.background_color, (240, 240, 240))
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def test_page_children_list_operations(self):
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"""Test that children list behaves correctly"""
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page = Page(size=self.page_size)
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# Test that children is initially empty list
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self.assertIsInstance(page.children, list)
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self.assertEqual(len(page.children), 0)
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# Test adding multiple children
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children = [
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SimpleTestRenderable(f"Child {i}")
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for i in range(5)
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]
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for child in children:
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page.add_child(child)
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self.assertEqual(len(page.children), 5)
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# Test that children are in the correct order
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for i, child in enumerate(page.children):
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self.assertEqual(child._text, f"Child {i}")
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def test_page_can_fit_line_boundary_checking(self):
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"""Test that can_fit_line correctly checks bottom boundary"""
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# Create page with known dimensions
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# Page: 800x600, border: 40, padding: (10, 10, 10, 10)
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# Content area starts at y=50 (border + padding_top = 40 + 10)
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# Content area ends at y=550 (height - border - padding_bottom = 600 - 40 - 10)
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style = PageStyle(
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border_width=40,
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padding=(10, 10, 10, 10)
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)
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page = Page(size=(800, 600), style=style)
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# Initial y_offset should be at border + padding_top = 50
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self.assertEqual(page._current_y_offset, 50)
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# Test 1: Line that fits comfortably
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line_height = 20
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max_y = 600 - 40 - 10 # 550
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self.assertTrue(page.can_fit_line(line_height))
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# Would end at 50 + 20 = 70, well within 550
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# Test 2: Simulate adding lines to fill the page
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# Available height: 550 - 50 = 500 pixels
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# With 20-pixel lines, we can fit 25 lines exactly
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for i in range(24): # Add 24 lines
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self.assertTrue(page.can_fit_line(20), f"Line {i+1} should fit")
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# Simulate adding a line by updating y_offset
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page._current_y_offset += 20
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# After 24 lines: y_offset = 50 + (24 * 20) = 530
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self.assertEqual(page._current_y_offset, 530)
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# Test 3: One more 20-pixel line should fit (530 + 20 = 550, exactly at boundary)
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self.assertTrue(page.can_fit_line(20))
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page._current_y_offset += 20
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self.assertEqual(page._current_y_offset, 550)
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# Test 4: Now another line should NOT fit (550 + 20 = 570 > 550)
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self.assertFalse(page.can_fit_line(20))
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# Test 5: Even a 1-pixel line should not fit (550 + 1 = 551 > 550)
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self.assertFalse(page.can_fit_line(1))
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# Test 6: Edge case - exactly at boundary, 0-height line should fit
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self.assertTrue(page.can_fit_line(0))
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def test_page_can_fit_line_with_different_styles(self):
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"""Test can_fit_line with different page styles"""
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# Test with no border or padding
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style_no_border = PageStyle(border_width=0, padding=(0, 0, 0, 0))
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page_no_border = Page(size=(100, 100), style=style_no_border)
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# With no border/padding, y_offset starts at 0
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self.assertEqual(page_no_border._current_y_offset, 0)
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# Can fit a 100-pixel line exactly
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self.assertTrue(page_no_border.can_fit_line(100))
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# Cannot fit a 101-pixel line
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self.assertFalse(page_no_border.can_fit_line(101))
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# Test with large border and padding
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style_large = PageStyle(border_width=20, padding=(15, 15, 15, 15))
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page_large = Page(size=(200, 200), style=style_large)
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# y_offset starts at border + padding_top = 20 + 15 = 35
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self.assertEqual(page_large._current_y_offset, 35)
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# Max y = 200 - 20 - 15 = 165
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# Available height = 165 - 35 = 130 pixels
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self.assertTrue(page_large.can_fit_line(130))
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self.assertFalse(page_large.can_fit_line(131))
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if __name__ == '__main__':
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unittest.main()
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