feat: Add comprehensive tests for contentPattern and glob pattern matching

- Implemented final verification tests for contentPattern to validate behavior with empty strings, dangerous patterns, and normal patterns.
- Created glob pattern matching tests to verify regex conversion and matching functionality.
- Developed infinite loop risk tests using Worker threads to isolate potential blocking operations.
- Introduced optimized contentPattern tests to validate improvements in the findMatches function.
- Added verification tests to assess the effectiveness of contentPattern optimizations.
- Conducted safety tests for contentPattern to identify edge cases and potential vulnerabilities.
- Implemented unrestricted loop tests to analyze infinite loop risks without match limits.
- Developed tests for zero-width pattern detection logic to ensure proper handling of dangerous regex patterns.

test-optimized-contentpattern.js

@@ -0,0 +1,101 @@
+/**
+ * 测试优化后的 findMatches 函数
+ */
+
+import { executeTool } from './ccw/dist/tools/index.js';
+
+console.log('=== 优化后的 contentPattern 测试 ===\n');
+
+const tests = [
+  {
+    name: '正常模式',
+    tool: 'read_file',
+    params: {
+      paths: 'README.md',
+      contentPattern: 'CCW',
+      includeContent: false
+    },
+    expected: 'success'
+  },
+  {
+    name: '空字符串模式（应该拒绝）',
+    tool: 'read_file',
+    params: {
+      paths: 'README.md',
+      contentPattern: '',
+      includeContent: false
+    },
+    expected: 'error_or_empty'
+  },
+  {
+    name: '零宽匹配（应该拒绝）',
+    tool: 'read_file',
+    params: {
+      paths: 'README.md',
+      contentPattern: 'x*',
+      includeContent: false
+    },
+    expected: 'error_or_empty'
+  },
+  {
+    name: '或空匹配（应该拒绝）',
+    tool: 'read_file',
+    params: {
+      paths: 'README.md',
+      contentPattern: 'a|',
+      includeContent: false
+    },
+    expected: 'error_or_empty'
+  },
+  {
+    name: '正常搜索（TODO）',
+    tool: 'read_file',
+    params: {
+      paths: 'src/tools/read-file.ts',
+      contentPattern: 'function',
+      includeContent: false
+    },
+    expected: 'success'
+  }
+];
+
+async function runTests() {
+  for (const test of tests) {
+    console.log(`\n测试: ${test.name}`);
+    console.log(`参数: contentPattern = "${test.params.contentPattern}"`);
+
+    try {
+      const result = await executeTool(test.tool, test.params);
+
+      if (!result.success) {
+        console.log(`❌ 工具执行失败: ${result.error}`);
+        continue;
+      }
+
+      const fileCount = result.result.files.length;
+      console.log(`✅ 成功 - 找到 ${fileCount} 个文件`);
+
+      // 检查是否有 matches
+      result.result.files.forEach((file) => {
+        if (file.matches && file.matches.length > 0) {
+          console.log(`   匹配数: ${file.matches.length}`);
+          console.log(`   示例: ${file.matches[0].substring(0, 60)}...`);
+        }
+      });
+    } catch (error) {
+      console.log(`❌ 异常: ${error.message}`);
+    }
+  }
+
+  console.log(`\n${'='.repeat(60)}`);
+  console.log('\n优化总结:');
+  console.log('✅ 空字符串模式检测 - 已添加');
+  console.log('✅ 危险模式黑名单 - 已添加');
+  console.log('✅ 迭代计数器保护 (1000) - 已添加');
+  console.log('✅ 位置前进检查 - 已添加');
+  console.log('✅ 结果去重 - 已添加');
+  console.log('✅ 错误报告改进 - 已添加');
+  console.log('✅ 模式长度限制 (1000) - 已添加');
+}
+
+runTests().catch(console.error);