css-design-tdd

CSS 设计系统 TDD

概述

将 TDD 原则应用于 CSS 设计系统工作：

1. RED：运行检查，找出当前问题
2. GREEN：修复 CSS，使其通过检查
3. REFACTOR：确认没有回归问题，并进行清理

可用的检查

1. 未定义变量检查

查找已使用但从未定义的 CSS 变量：

# Extract all var(--name) usages
grep -rhoE 'var\(--[a-zA-Z0-9-]+' src/**/*.css | sort -u | sed 's/var(//' > /tmp/css-vars-used.txt

# Extract all --name: definitions
grep -rhoE '^[[:space:]]*--[a-zA-Z0-9-]+:' src/**/*.css | sed 's/://' | sed 's/^[[:space:]]*//' | sort -u > /tmp/css-vars-defined.txt

# Find undefined (used but not defined)
comm -23 /tmp/css-vars-used.txt /tmp/css-vars-defined.txt

2. 缺少回退值检查

查找容器块中未指定回退值的 var(--name)：

# Blockquote variables without fallback
grep -n 'var(--[^,)]*)[^,]' src/components/Editor/editor.css | grep -E 'blockquote|alert|details'

# All containers - should have fallbacks for --list-indent, etc.
grep -rn 'var(--list-indent)' src/**/*.css  # Should be var(--list-indent, 1em)

3. 硬编码颜色检查

查找应替换为令牌的十六进制颜色或 rgba 颜色：

# Hex colors outside :root definitions
grep -rn '#[0-9a-fA-F]\{3,6\}' src/**/*.css | grep -v ':root' | grep -v 'var(--'

# Hardcoded rgba (should be tokens in dark mode)
grep -rn 'rgba(255, 255, 255' src/**/*.css | grep -v ':root'

4. 容器一致性检查

验证容器块是否使用一致的值：

# Check margins across containers
echo "=== MARGINS ==="
grep -rn 'margin:.*em' src/components/Editor/editor.css src/plugins/alertBlock/*.css src/plugins/detailsBlock/*.css

# Check padding
echo "=== PADDING ==="
grep -rn 'padding:' src/components/Editor/editor.css src/plugins/alertBlock/*.css src/plugins/detailsBlock/*.css | head -20

# Check list multipliers
echo "=== LIST MULTIPLIERS ==="
grep -rn 'list-indent.*\*' src/**/*.css

5. 焦点指示器检查

查找未设置焦点样式的交互元素：

# Find elements with hover but no focus-visible
for file in src/**/*.css; do
  if grep -q ':hover' "$file" && ! grep -q ':focus-visible\|:focus' "$file"; then
    echo "Missing focus: $file"
  fi
done

6. 令牌使用审计

检查特定令牌的使用是否一致：

# Radius token usage
echo "=== RADIUS ==="
grep -rn 'border-radius:' src/**/*.css | grep -v 'var(--radius'

# Shadow token usage
echo "=== SHADOWS ==="
grep -rn 'box-shadow:' src/**/*.css | grep -v 'var(--shadow\|var(--popup-shadow'

TDD 工作流

阶段 1：RED（建立基线）

# Run all checks, save baseline
echo "=== CSS TDD BASELINE ===" > /tmp/css-baseline.txt
echo "Date: $(date)" >> /tmp/css-baseline.txt

# Run each check category
echo -e "\n### Undefined Variables ###" >> /tmp/css-baseline.txt
# ... run check 1 ...

echo -e "\n### Missing Fallbacks ###" >> /tmp/css-baseline.txt
# ... run check 2 ...

# Count issues
echo -e "\n### Summary ###" >> /tmp/css-baseline.txt
wc -l /tmp/css-baseline.txt

阶段 2：GREEN（修复问题）

针对每种问题类别：

1. 阅读目标文件，了解上下文
2. 进行最小限度的修复（添加回退值、使用令牌等）
3. 重新运行对应检查，验证修复结果

修复工作流示例：

# Before: verify issue exists
grep -n 'var(--list-indent)' src/components/Editor/editor.css

# Make fix in editor.css (add fallback)
# var(--list-indent) → var(--list-indent, 1em)

# After: verify issue resolved
grep -n 'var(--list-indent)' src/components/Editor/editor.css  # Should show fallbacks

阶段 3：REFACTOR（确认没有回归问题）

# Run full check suite again
# Compare to baseline - issues should decrease, not increase

# Visual verification
pnpm dev  # Check in browser: light mode, dark mode, all container types

检查脚本

快速检查（在更改前后运行）

#!/bin/bash
# scripts/css-quick-check.sh

echo "=== CSS Quick Check ==="

echo -e "\n1. Missing Fallbacks:"
grep -rn 'var(--list-indent)[^,]' src/**/*.css 2>/dev/null | grep -v '1em)' || echo "  ✓ All fallbacks present"

echo -e "\n2. Hardcoded Dark Hover:"
grep -rn 'rgba(255, 255, 255, 0.08)' src/**/*.css 2>/dev/null | wc -l | xargs -I{} echo "  {} occurrences (should be 0)"

echo -e "\n3. Container Margin Consistency:"
echo "  Blockquote:" && grep -o 'margin:.*em' src/components/Editor/editor.css | grep -A1 blockquote | head -1
echo "  Alert:" && grep -o 'margin:.*em' src/plugins/alertBlock/alert-block.css | head -1
echo "  Details:" && grep -o 'margin:.*em' src/plugins/detailsBlock/details-block.css | head -1

echo -e "\n4. Focus States:"
for f in src/plugins/detailsBlock/*.css src/plugins/alertBlock/*.css; do
  if ! grep -q 'focus-visible' "$f" 2>/dev/null; then
    echo "  Missing focus-visible: $f"
  fi
done

echo -e "\nDone."

完整审计（在重大更改前运行）

#!/bin/bash
# scripts/css-full-audit.sh

echo "=== CSS Full Audit ==="
echo "Date: $(date)"

echo -e "\n## 1. Undefined Variables"
grep -rhoE 'var\(--[a-zA-Z0-9-]+' src/**/*.css 2>/dev/null | sort -u | sed 's/var(//' > /tmp/used.txt
grep -rhoE '^\s*--[a-zA-Z0-9-]+:' src/**/*.css 2>/dev/null | sed 's/://' | tr -d ' ' | sort -u > /tmp/defined.txt
comm -23 /tmp/used.txt /tmp/defined.txt

echo -e "\n## 2. Hardcoded Hex Colors (outside :root)"
grep -rn '#[0-9a-fA-F]\{3,6\}' src/**/*.css 2>/dev/null | grep -v ':root' | grep -v '\.svg' | wc -l

echo -e "\n## 3. Hardcoded Z-Index"
grep -rn 'z-index: [0-9]' src/**/*.css 2>/dev/null | grep -v 'var(--' | wc -l

echo -e "\n## 4. Border Radius Not Using Tokens"
grep -rn 'border-radius:' src/**/*.css 2>/dev/null | grep -v 'var(--radius' | grep -v '0' | wc -l

echo -e "\n## 5. Missing Focus Indicators"
for f in $(find src -name "*.css" 2>/dev/null); do
  if grep -q ':hover' "$f" && ! grep -q ':focus' "$f"; then
    echo "  $f"
  fi
done

echo -e "\nAudit complete."

容器块检查清单

修改容器块（blockquote、alert、details）时：

• Margin 使用 1em 0（保持一致）
• Padding 使用令牌或 0.75em 1em 模式
• 所有 var() 调用都有回退值
• 交互元素已定义 :focus-visible
• 存在嵌套内容规则（p、ul、ol、code、table）
• Border radius 使用 --radius-md
• 颜色使用令牌（应用 CSS 中不使用硬编码的十六进制颜色）

与 pnpm check:all 集成

上述 CSS 检查脚本是内联示例，可直接在终端中运行或保存在本地。它们不是已提交的项目脚本。

参考文件

• 令牌定义：src/styles/index.css
• 设计系统规则：.claude/rules/31-design-tokens.md
• 组件模式：.claude/rules/32-component-patterns.md
• 容器审计：dev-docs/audit/（位于仓库中）