TeamCity MCP Server

import { REGEX_SPECIAL_CHARS, globToRegex } from '@/utils/pattern'; describe('REGEX_SPECIAL_CHARS', () => { it('should match all regex metacharacters except glob wildcards', () => { const specialChars = '.+^${}()|[]\\'; for (const char of specialChars) { expect(char).toMatch(REGEX_SPECIAL_CHARS); } }); it('should not match glob wildcards', () => { expect('*').not.toMatch(REGEX_SPECIAL_CHARS); expect('?').not.toMatch(REGEX_SPECIAL_CHARS); }); it('should not match regular characters', () => { expect('a').not.toMatch(REGEX_SPECIAL_CHARS); expect('Z').not.toMatch(REGEX_SPECIAL_CHARS); expect('0').not.toMatch(REGEX_SPECIAL_CHARS); expect('-').not.toMatch(REGEX_SPECIAL_CHARS); expect('_').not.toMatch(REGEX_SPECIAL_CHARS); }); }); describe('globToRegex', () => { describe('basic matching', () => { it('should match exact strings', () => { const regex = globToRegex('hello'); expect(regex.test('hello')).toBe(true); expect(regex.test('Hello')).toBe(false); expect(regex.test('hello!')).toBe(false); expect(regex.test('xhello')).toBe(false); }); it('should be anchored at start and end', () => { const regex = globToRegex('test'); expect(regex.test('test')).toBe(true); expect(regex.test('testing')).toBe(false); expect(regex.test('atest')).toBe(false); expect(regex.test('atestb')).toBe(false); }); }); describe('wildcard *', () => { it('should match any sequence with *', () => { const regex = globToRegex('*.txt'); expect(regex.test('file.txt')).toBe(true); expect(regex.test('longfilename.txt')).toBe(true); expect(regex.test('.txt')).toBe(true); expect(regex.test('file.csv')).toBe(false); }); it('should match prefix with *', () => { const regex = globToRegex('test*'); expect(regex.test('test')).toBe(true); expect(regex.test('testing')).toBe(true); expect(regex.test('test123')).toBe(true); expect(regex.test('atest')).toBe(false); }); it('should match middle with *', () => { const regex = globToRegex('start*end'); expect(regex.test('startend')).toBe(true); expect(regex.test('start-middle-end')).toBe(true); expect(regex.test('startxend')).toBe(true); expect(regex.test('startendx')).toBe(false); }); it('should handle multiple *', () => { const regex = globToRegex('*.*'); expect(regex.test('file.txt')).toBe(true); expect(regex.test('a.b')).toBe(true); expect(regex.test('noextension')).toBe(false); }); }); describe('wildcard ?', () => { it('should match single character with ?', () => { const regex = globToRegex('test?'); expect(regex.test('test1')).toBe(true); expect(regex.test('testA')).toBe(true); expect(regex.test('test')).toBe(false); expect(regex.test('test12')).toBe(false); }); it('should handle multiple ?', () => { const regex = globToRegex('a??b'); expect(regex.test('axxb')).toBe(true); expect(regex.test('a12b')).toBe(true); expect(regex.test('axb')).toBe(false); expect(regex.test('axxxb')).toBe(false); }); it('should combine ? and *', () => { const regex = globToRegex('?est*'); expect(regex.test('test')).toBe(true); expect(regex.test('testing')).toBe(true); expect(regex.test('best123')).toBe(true); expect(regex.test('est')).toBe(false); }); }); describe('special character escaping (security)', () => { it('should escape dot (.)', () => { const regex = globToRegex('file.txt'); expect(regex.test('file.txt')).toBe(true); expect(regex.test('filextxt')).toBe(false); }); it('should escape plus (+)', () => { const regex = globToRegex('a+b'); expect(regex.test('a+b')).toBe(true); expect(regex.test('ab')).toBe(false); expect(regex.test('aab')).toBe(false); expect(regex.test('aaab')).toBe(false); }); it('should escape caret (^)', () => { const regex = globToRegex('^start'); expect(regex.test('^start')).toBe(true); expect(regex.test('start')).toBe(false); }); it('should escape dollar ($)', () => { const regex = globToRegex('end$'); expect(regex.test('end$')).toBe(true); expect(regex.test('end')).toBe(false); }); it('should escape curly braces ({})', () => { const regex = globToRegex('a{2}'); expect(regex.test('a{2}')).toBe(true); expect(regex.test('aa')).toBe(false); }); it('should escape parentheses (())', () => { const regex = globToRegex('(group)'); expect(regex.test('(group)')).toBe(true); expect(regex.test('group')).toBe(false); }); it('should escape pipe (|)', () => { const regex = globToRegex('a|b'); expect(regex.test('a|b')).toBe(true); expect(regex.test('a')).toBe(false); expect(regex.test('b')).toBe(false); }); it('should escape square brackets ([])', () => { const regex = globToRegex('[abc]'); expect(regex.test('[abc]')).toBe(true); expect(regex.test('a')).toBe(false); expect(regex.test('b')).toBe(false); }); it('should escape backslash (\\) - the CVE fix', () => { const regex = globToRegex('path\\file'); expect(regex.test('path\\file')).toBe(true); expect(regex.test('pathfile')).toBe(false); expect(regex.test('path/file')).toBe(false); }); it('should handle multiple backslashes', () => { const regex = globToRegex('a\\\\b'); expect(regex.test('a\\\\b')).toBe(true); expect(regex.test('a\\b')).toBe(false); }); it('should handle backslash with wildcard', () => { const regex = globToRegex('*\\*.txt'); expect(regex.test('dir\\file.txt')).toBe(true); expect(regex.test('path\\name.txt')).toBe(true); expect(regex.test('dir/file.txt')).toBe(false); }); }); describe('case sensitivity', () => { it('should be case-sensitive by default', () => { const regex = globToRegex('Test'); expect(regex.test('Test')).toBe(true); expect(regex.test('test')).toBe(false); expect(regex.test('TEST')).toBe(false); }); it('should support case-insensitive flag', () => { const regex = globToRegex('Test', 'i'); expect(regex.test('Test')).toBe(true); expect(regex.test('test')).toBe(true); expect(regex.test('TEST')).toBe(true); }); it('should support case-insensitive wildcards', () => { const regex = globToRegex('*.TXT', 'i'); expect(regex.test('file.txt')).toBe(true); expect(regex.test('FILE.TXT')).toBe(true); expect(regex.test('File.Txt')).toBe(true); }); }); describe('edge cases', () => { it('should handle empty pattern', () => { const regex = globToRegex(''); expect(regex.test('')).toBe(true); expect(regex.test('x')).toBe(false); }); it('should handle pattern with only *', () => { const regex = globToRegex('*'); expect(regex.test('')).toBe(true); expect(regex.test('anything')).toBe(true); expect(regex.test('with spaces too')).toBe(true); }); it('should handle pattern with only ?', () => { const regex = globToRegex('?'); expect(regex.test('x')).toBe(true); expect(regex.test('')).toBe(false); expect(regex.test('ab')).toBe(false); }); it('should handle complex real-world patterns', () => { const regex = globToRegex('build-*.log'); expect(regex.test('build-123.log')).toBe(true); expect(regex.test('build-2024-01-15.log')).toBe(true); expect(regex.test('build.log')).toBe(false); }); }); describe('ReDoS prevention', () => { it('should escape quantifiers to prevent catastrophic backtracking', () => { // The + quantifier must be escaped to prevent ReDoS // If not escaped, 'a+' would match 'aaa' - but we want literal 'a+' const patternWithPlus = 'a+b'; const regex = globToRegex(patternWithPlus); // Verify + is escaped (matches literal 'a+b', not regex quantifier) expect(regex.test('a+b')).toBe(true); expect(regex.test('aaab')).toBe(false); expect(regex.test('ab')).toBe(false); }); it('should safely handle patterns with alternation', () => { // Pattern that would create alternation if not escaped: a|b const pattern = 'a|b'; const regex = globToRegex(pattern); expect(regex.test('a|b')).toBe(true); expect(regex.test('a')).toBe(false); expect(regex.test('b')).toBe(false); }); }); });