refactor: tools folder inside pages

src/pages/tools/string/randomize-case/randomize-case.service.test.ts

@@ -0,0 +1,50 @@
+import { describe, expect, it } from 'vitest';
+import { randomizeCase } from './service';
+
+describe('randomizeCase', () => {
+  it('should randomize the case of each character in the string', () => {
+    const input = 'hello world';
+    const result = randomizeCase(input);
+
+    // Ensure the output length is the same
+    expect(result).toHaveLength(input.length);
+
+    // Ensure each character in the input string appears in the result
+    for (let i = 0; i < input.length; i++) {
+      const inputChar = input[i];
+      const resultChar = result[i];
+
+      if (/[a-zA-Z]/.test(inputChar)) {
+        expect([inputChar.toLowerCase(), inputChar.toUpperCase()]).toContain(
+          resultChar
+        );
+      } else {
+        expect(inputChar).toBe(resultChar);
+      }
+    }
+  });
+
+  it('should handle an empty string', () => {
+    const input = '';
+    const result = randomizeCase(input);
+    expect(result).toBe('');
+  });
+
+  it('should handle a string with numbers and symbols', () => {
+    const input = '123 hello! @world';
+    const result = randomizeCase(input);
+
+    // Ensure the output length is the same
+    expect(result).toHaveLength(input.length);
+
+    // Ensure numbers and symbols remain unchanged
+    for (let i = 0; i < input.length; i++) {
+      const inputChar = input[i];
+      const resultChar = result[i];
+
+      if (!/[a-zA-Z]/.test(inputChar)) {
+        expect(inputChar).toBe(resultChar);
+      }
+    }
+  });
+});