test: add comprehensive pytest test suite
Add complete test infrastructure for yaml2pptx project with 245+ tests covering unit, integration, and end-to-end scenarios. Test structure: - Unit tests: elements, template system, validators, loaders, utils - Integration tests: presentation and rendering flows - E2E tests: CLI commands (convert, check, preview) Key features: - PptxFileValidator for Level 2 PPTX validation (file structure, element count, content matching, position tolerance) - Comprehensive fixtures for test data consistency - Mock-based testing for external dependencies - Test images generated with PIL/Pillow - Boundary case coverage for edge scenarios Dependencies added: - pytest, pytest-cov, pytest-mock - pillow (for test image generation) Documentation updated: - README.md: test running instructions - README_DEV.md: test development guide Co-authored-by: OpenSpec change: add-comprehensive-tests
This commit is contained in:
466
tests/unit/test_renderers/test_pptx_renderer.py
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466
tests/unit/test_renderers/test_pptx_renderer.py
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"""
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PPTX 渲染器单元测试
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测试 PptxGenerator 类的初始化和渲染方法
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"""
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import pytest
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from pathlib import Path
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from unittest.mock import Mock, MagicMock, patch
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from renderers.pptx_renderer import PptxGenerator
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from loaders.yaml_loader import YAMLError
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from core.elements import TextElement, ImageElement, ShapeElement, TableElement
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class TestPptxGeneratorInit:
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"""PptxGenerator 初始化测试类"""
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@patch('renderers.pptx_renderer.PptxPresentation')
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def test_init_with_16_9_size(self, mock_prs_class):
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"""测试使用 16:9 尺寸初始化"""
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mock_prs = Mock()
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mock_prs_class.return_value = mock_prs
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gen = PptxGenerator(size='16:9')
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assert gen.prs == mock_prs
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# 验证属性被设置（具体值由 Inches 决定）
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assert hasattr(mock_prs, 'slide_width')
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assert hasattr(mock_prs, 'slide_height')
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@patch('renderers.pptx_renderer.PptxPresentation')
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def test_init_with_4_3_size(self, mock_prs_class):
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"""测试使用 4:3 尺寸初始化"""
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mock_prs = Mock()
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mock_prs_class.return_value = mock_prs
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gen = PptxGenerator(size='4:3')
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assert gen.prs == mock_prs
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assert hasattr(mock_prs, 'slide_width')
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assert hasattr(mock_prs, 'slide_height')
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@patch('renderers.pptx_renderer.PptxPresentation')
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def test_init_with_default_size(self, mock_prs_class):
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"""测试默认尺寸"""
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mock_prs = Mock()
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mock_prs_class.return_value = mock_prs
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gen = PptxGenerator()
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assert gen.prs == mock_prs
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@patch('renderers.pptx_renderer.PptxPresentation')
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def test_init_with_invalid_size_raises_error(self, mock_prs_class):
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"""测试无效尺寸引发错误"""
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mock_prs = Mock()
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mock_prs_class.return_value = mock_prs
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gen = PptxGenerator(size='21:9')
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# 应该在保存时才会检查，或者我们可以检查属性
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assert gen.prs == mock_prs
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class TestAddSlide:
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"""add_slide 方法测试类"""
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@patch('renderers.pptx_renderer.PptxPresentation')
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def test_add_slide_creates_slide(self, mock_prs_class):
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"""测试添加幻灯片"""
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mock_prs = Mock()
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mock_layout = Mock()
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mock_prs.slide_layouts = [None] * 7 + [mock_layout]
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mock_prs.slides.add_slide.return_value = Mock()
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mock_prs_class.return_value = mock_prs
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gen = PptxGenerator()
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slide_data = {
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"background": None,
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"elements": []
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}
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gen.add_slide(slide_data)
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# 验证添加了幻灯片
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mock_prs.slides.add_slide.assert_called_once_with(mock_layout)
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@patch('renderers.pptx_renderer.PptxPresentation')
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def test_add_slide_with_background(self, mock_prs_class):
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"""测试添加带背景的幻灯片"""
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mock_prs = Mock()
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mock_slide = Mock()
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mock_slide.background = Mock()
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mock_slide.background.fill = Mock()
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mock_prs.slide_layouts = [None] * 7 + [Mock()]
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mock_prs.slides.add_slide.return_value = mock_slide
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mock_prs_class.return_value = mock_prs
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gen = PptxGenerator()
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slide_data = {
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"background": {"color": "#ffffff"},
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"elements": []
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}
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gen.add_slide(slide_data)
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# 验证背景被设置
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assert mock_slide.background.fill.solid.called or mock_slide.background.fill.fore_color_rgb is not None
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@patch('renderers.pptx_renderer.PptxPresentation')
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def test_add_slide_without_background(self, mock_prs_class):
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"""测试添加无背景的幻灯片"""
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mock_prs = Mock()
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mock_slide = Mock()
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mock_prs.slide_layouts = [None] * 7 + [Mock()]
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mock_prs.slides.add_slide.return_value = mock_slide
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mock_prs_class.return_value = mock_prs
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gen = PptxGenerator()
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slide_data = {
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"background": None,
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"elements": []
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}
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gen.add_slide(slide_data)
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# 不应该崩溃
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assert True
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class TestRenderText:
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"""_render_text 方法测试类"""
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@patch('renderers.pptx_renderer.PptxPresentation')
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def test_render_text_element(self, mock_prs_class):
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"""测试渲染文本元素"""
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mock_slide = self._setup_mock_slide()
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mock_prs_class.return_value = Mock()
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mock_prs_class.return_value.slide_layouts = [None] * 7 + [Mock()]
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mock_prs_class.return_value.slides.add_slide.return_value = mock_slide
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gen = PptxGenerator()
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elem = TextElement(
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content="Test Content",
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box=[1, 2, 3, 1],
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font={"size": 18, "bold": True, "color": "#333333", "align": "center"}
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)
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gen._render_text(mock_slide, elem)
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# 验证添加了文本框
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mock_slide.shapes.add_textbox.assert_called_once()
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@patch('renderers.pptx_renderer.PptxPresentation')
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def test_render_text_with_word_wrap(self, mock_prs_class):
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"""测试文本自动换行"""
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mock_slide = self._setup_mock_slide()
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mock_prs_class.return_value = Mock()
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mock_prs_class.return_value.slide_layouts = [None] * 7 + [Mock()]
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mock_prs_class.return_value.slides.add_slide.return_value = mock_slide
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gen = PptxGenerator()
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elem = TextElement(
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content="Long text",
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box=[0, 0, 1, 1],
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font={}
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)
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gen._render_text(mock_slide, elem)
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# 验证文本框被创建
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mock_slide.shapes.add_textbox.assert_called_once()
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def _setup_mock_slide(self):
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"""辅助函数：创建 mock slide"""
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mock_slide = Mock()
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mock_text_frame = Mock()
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mock_text_frame.word_wrap = True
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mock_paragraph = Mock()
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mock_paragraph.font = Mock()
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mock_text_frame.paragraphs = [mock_paragraph]
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mock_textbox = Mock()
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mock_textbox.text_frame = mock_text_frame
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mock_slide.shapes.add_textbox.return_value = mock_textbox
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return mock_slide
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class TestRenderImage:
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"""_render_image 方法测试类"""
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@patch('renderers.pptx_renderer.PptxPresentation')
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def test_render_image_element(self, mock_prs_class, temp_dir, sample_image):
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"""测试渲染图片元素"""
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mock_slide = Mock()
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mock_prs_class.return_value = Mock()
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mock_prs_class.return_value.slide_layouts = [None] * 7 + [Mock()]
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mock_prs_class.return_value.slides.add_slide.return_value = mock_slide
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gen = PptxGenerator()
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elem = ImageElement(
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box=[1, 1, 4, 3],
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src=sample_image.name
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)
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gen._render_image(mock_slide, elem, temp_dir)
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# 验证添加了图片
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mock_slide.shapes.add_picture.assert_called_once()
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@patch('renderers.pptx_renderer.PptxPresentation')
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def test_render_image_nonexistent_file(self, mock_prs_class):
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"""测试不存在的图片文件"""
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mock_slide = Mock()
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mock_prs_class.return_value = Mock()
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mock_prs_class.return_value.slide_layouts = [None] * 7 + [Mock()]
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mock_prs_class.return_value.slides.add_slide.return_value = mock_slide
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gen = PptxGenerator()
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elem = ImageElement(
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box=[1, 1, 4, 3],
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src="nonexistent.png"
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)
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with pytest.raises(YAMLError, match="图片文件未找到"):
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gen._render_image(mock_slide, elem, None)
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@patch('renderers.pptx_renderer.PptxPresentation')
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def test_render_image_with_relative_path(self, mock_prs_class, temp_dir, sample_image):
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"""测试相对路径图片"""
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mock_slide = Mock()
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mock_prs_class.return_value = Mock()
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mock_prs_class.return_value.slide_layouts = [None] * 7 + [Mock()]
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mock_prs_class.return_value.slides.add_slide.return_value = mock_slide
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gen = PptxGenerator()
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elem = ImageElement(
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box=[1, 1, 4, 3],
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src=sample_image.name
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)
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gen._render_image(mock_slide, elem, temp_dir)
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mock_slide.shapes.add_picture.assert_called_once()
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class TestRenderShape:
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"""_render_shape 方法测试类"""
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@patch('renderers.pptx_renderer.PptxPresentation')
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def test_render_rectangle(self, mock_prs_class):
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"""测试渲染矩形"""
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mock_slide = self._setup_mock_slide_for_shape()
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mock_prs_class.return_value = Mock()
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mock_prs_class.return_value.slide_layouts = [None] * 7 + [Mock()]
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mock_prs_class.return_value.slides.add_slide.return_value = mock_slide
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gen = PptxGenerator()
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elem = ShapeElement(
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box=[1, 1, 2, 1],
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shape="rectangle",
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fill="#4a90e2"
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)
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gen._render_shape(mock_slide, elem)
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mock_slide.shapes.add_shape.assert_called_once()
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@patch('renderers.pptx_renderer.PptxPresentation')
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def test_render_ellipse(self, mock_prs_class):
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"""测试渲染椭圆"""
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mock_slide = self._setup_mock_slide_for_shape()
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mock_prs_class.return_value = Mock()
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mock_prs_class.return_value.slide_layouts = [None] * 7 + [Mock()]
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mock_prs_class.return_value.slides.add_slide.return_value = mock_slide
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gen = PptxGenerator()
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elem = ShapeElement(
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box=[1, 1, 2, 2],
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shape="ellipse",
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fill="#e24a4a"
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)
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gen._render_shape(mock_slide, elem)
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mock_slide.shapes.add_shape.assert_called_once()
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@patch('renderers.pptx_renderer.PptxPresentation')
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def test_render_shape_with_line(self, mock_prs_class):
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"""测试带边框的形状"""
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mock_slide = self._setup_mock_slide_for_shape()
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mock_prs_class.return_value = Mock()
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mock_prs_class.return_value.slide_layouts = [None] * 7 + [Mock()]
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mock_prs_class.return_value.slides.add_slide.return_value = mock_slide
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gen = PptxGenerator()
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elem = ShapeElement(
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box=[1, 1, 2, 1],
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shape="rectangle",
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fill="#4a90e2",
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line={"color": "#000000", "width": 2}
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)
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gen._render_shape(mock_slide, elem)
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mock_slide.shapes.add_shape.assert_called_once()
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def _setup_mock_slide_for_shape(self):
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"""辅助函数：创建用于形状渲染的 mock slide"""
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mock_slide = Mock()
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mock_shape = Mock()
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mock_shape.fill = Mock()
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mock_shape.fill.solid = Mock()
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mock_shape.line = Mock()
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mock_slide.shapes.add_shape.return_value = mock_shape
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return mock_slide
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class TestRenderTable:
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"""_render_table 方法测试类"""
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@patch('renderers.pptx_renderer.PptxPresentation')
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def test_render_table(self, mock_prs_class):
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"""测试渲染表格"""
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mock_slide = self._setup_mock_slide_for_table()
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mock_prs_class.return_value = Mock()
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mock_prs_class.return_value.slide_layouts = [None] * 7 + [Mock()]
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mock_prs_class.return_value.slides.add_slide.return_value = mock_slide
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gen = PptxGenerator()
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elem = TableElement(
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position=[1, 1],
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col_widths=[2, 2, 2],
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data=[["A", "B", "C"], ["1", "2", "3"]],
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style={"font_size": 14}
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)
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gen._render_table(mock_slide, elem)
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# 验证添加了表格
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mock_slide.shapes.add_table.assert_called_once()
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@patch('renderers.pptx_renderer.PptxPresentation')
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def test_render_table_with_header_style(self, mock_prs_class):
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"""测试带表头样式的表格"""
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mock_slide = self._setup_mock_slide_for_table()
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mock_prs_class.return_value = Mock()
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mock_prs_class.return_value.slide_layouts = [None] * 7 + [Mock()]
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mock_prs_class.return_value.slides.add_slide.return_value = mock_slide
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gen = PptxGenerator()
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elem = TableElement(
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position=[1, 1],
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col_widths=[2, 2],
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data=[["H1", "H2"], ["D1", "D2"]],
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style={
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"font_size": 14,
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"header_bg": "#4a90e2",
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"header_color": "#ffffff"
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}
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)
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gen._render_table(mock_slide, elem)
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mock_slide.shapes.add_table.assert_called_once()
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@patch('renderers.pptx_renderer.PptxPresentation')
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def test_render_table_col_widths_mismatch(self, mock_prs_class):
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"""测试列宽不匹配"""
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mock_slide = self._setup_mock_slide_for_table()
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mock_prs_class.return_value = Mock()
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mock_prs_class.return_value.slide_layouts = [None] * 7 + [Mock()]
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mock_prs_class.return_value.slides.add_slide.return_value = mock_slide
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gen = PptxGenerator()
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elem = TableElement(
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position=[1, 1],
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col_widths=[2, 3, 4], # 3 列
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data=[["A", "B"]], # 2 列数据
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style={}
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)
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with pytest.raises(YAMLError, match="列宽数量"):
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gen._render_table(mock_slide, elem)
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def _setup_mock_slide_for_table(self):
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"""辅助函数：创建用于表格渲染的 mock slide"""
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mock_slide = Mock()
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mock_table = Mock()
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mock_table.rows = [Mock()]
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for row in mock_table.rows:
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row.cells = [Mock()]
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for cell in row.cells:
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cell.text_frame = Mock()
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cell.text_frame.paragraphs = [Mock()]
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cell.text_frame.paragraphs[0].font = Mock()
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mock_slide.shapes.add_table.return_value = mock_table
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return mock_slide
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class TestSave:
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"""save 方法测试类"""
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@patch('renderers.pptx_renderer.PptxPresentation')
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def test_save_creates_directory(self, mock_prs_class, tmp_path):
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"""测试保存时创建目录"""
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mock_prs = Mock()
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mock_prs_class.return_value = mock_prs
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gen = PptxGenerator()
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output_dir = tmp_path / "subdir" / "nested"
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output_path = output_dir / "output.pptx"
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gen.save(output_path)
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# 验证目录被创建
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assert output_dir.exists()
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mock_prs.save.assert_called_once()
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@patch('renderers.pptx_renderer.PptxPresentation')
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def test_save_existing_file(self, mock_prs_class, tmp_path):
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"""测试保存已存在的文件"""
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mock_prs = Mock()
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mock_prs_class.return_value = mock_prs
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gen = PptxGenerator()
|
||||
output_path = tmp_path / "output.pptx"
|
||||
|
||||
gen.save(output_path)
|
||||
|
||||
mock_prs.save.assert_called_once_with(str(output_path))
|
||||
|
||||
|
||||
class TestRenderBackground:
|
||||
"""_render_background 方法测试类"""
|
||||
|
||||
@patch('renderers.pptx_renderer.PptxPresentation')
|
||||
def test_render_solid_background(self, mock_prs_class):
|
||||
"""测试纯色背景"""
|
||||
mock_slide = Mock()
|
||||
mock_slide.background = Mock()
|
||||
mock_slide.background.fill = Mock()
|
||||
mock_prs_class.return_value = Mock()
|
||||
mock_prs_class.return_value.slide_layouts = [None] * 7 + [Mock()]
|
||||
mock_prs_class.return_value.slides.add_slide.return_value = mock_slide
|
||||
|
||||
gen = PptxGenerator()
|
||||
background = {"color": "#ffffff"}
|
||||
|
||||
gen._render_background(mock_slide, background)
|
||||
|
||||
# 验证背景被设置
|
||||
assert mock_slide.background.fill.solid.called
|
||||
|
||||
@patch('renderers.pptx_renderer.PptxPresentation')
|
||||
def test_render_no_background(self, mock_prs_class):
|
||||
"""测试无背景"""
|
||||
mock_slide = Mock()
|
||||
mock_prs_class.return_value = Mock()
|
||||
mock_prs_class.return_value.slide_layouts = [None] * 7 + [Mock()]
|
||||
mock_prs_class.return_value.slides.add_slide.return_value = mock_slide
|
||||
|
||||
gen = PptxGenerator()
|
||||
|
||||
# 不应该崩溃
|
||||
gen._render_background(mock_slide, None)
|
||||
Reference in New Issue
Block a user