Fix control character regex patterns in test assertions

- Replace regex patterns with string methods for ANSI codes
- Change .toMatch() to .toContain() for escape sequences
- Improve test assertion readability

Author: jdalton

test/helpers/output-assertions.mts

@@ -389,7 +389,7 @@ export function expectValidJson<T = unknown>(output: string): T {
  * ```
  */
 export function expectNoAnsiCodes(output: string): void {
-  const ansiPattern = /\u001b\[\d+m/
+  const ansiPattern = /\x1B\[\d+m/
   expect(output).not.toMatch(ansiPattern)
 }
 

test/utils/output-formatting-tables.test.mts

@@ -1,10 +1,12 @@
 /** @fileoverview Tests for table formatting utilities. */
 
-import type { TableColumn } from '@socketsecurity/registry/tables'
-import { formatSimpleTable, formatTable } from '@socketsecurity/registry/tables'
 import { describe, expect, it } from 'vitest'
 import colors from 'yoctocolors-cjs'
 
+import { formatSimpleTable, formatTable } from '@socketsecurity/registry/tables'
+
+import type { TableColumn } from '@socketsecurity/registry/tables'
+
 describe('formatTable', () => {
   it('should format empty data', () => {
     const columns: TableColumn[] = [{ key: 'name', header: 'Name' }]
@@ -92,7 +94,7 @@ describe('formatTable', () => {
 
     // Should contain ANSI color codes
 
-    expect(result).toMatch(/\u001b\[/)
+    expect(result).toContain('\u001b[')
   })
 
   it('should handle missing values', () => {
@@ -202,7 +204,7 @@ describe('formatSimpleTable', () => {
 
     // Should contain ANSI color codes
 
-    expect(result).toMatch(/\u001b\[/)
+    expect(result).toContain('\u001b[')
   })
 
   it('should handle missing values in simple tables', () => {