feat: add text repeat tool

- Added text repeat tool to repeat input text multiple times with optional delimiter.
- Included functionality for custom repetition amounts and delimiters.

src/pages/tools/string/repeat/repeatText.service.test.ts

@@ -0,0 +1,55 @@
+import { describe, expect, it } from 'vitest';
+import { repeatText } from './service';
+import { initialValues } from './initialValues';
+
+describe('repeatText function', () => {
+  it('should repeat the letter correctly', () => {
+    const text = 'i';
+    const repeatAmount = '5';
+    const result = repeatText({ ...initialValues, repeatAmount }, text);
+    expect(result).toBe('iiiii');
+  });
+
+  it('should repeat the word correctly', () => {
+    const text = 'hello';
+    const repeatAmount = '3';
+    const result = repeatText({ ...initialValues, repeatAmount }, text);
+    expect(result).toBe('hellohellohello');
+  });
+
+  it('should repeat the word with a space delimiter correctly', () => {
+    const text = 'word';
+    const repeatAmount = '3';
+    const delimiter = ' ';
+    const result = repeatText(
+      { ...initialValues, repeatAmount, delimiter },
+      text
+    );
+    expect(result).toBe('word word word');
+  });
+
+  it('should repeat the word with a space and a comma delimiter correctly', () => {
+    const text = 'test';
+    const repeatAmount = '3';
+    const delimiter = ', ';
+    const result = repeatText(
+      { ...initialValues, repeatAmount, delimiter },
+      text
+    );
+    expect(result).toBe('test, test, test');
+  });
+
+  it('Should not repeat text if repeatAmount is zero', () => {
+    const text = 'something';
+    const repeatAmount = '0';
+    const result = repeatText({ ...initialValues, repeatAmount }, text);
+    expect(result).toBe('');
+  });
+
+  it('Should not repeat text if repeatAmount is not entered', () => {
+    const text = 'something';
+    const repeatAmount = '';
+    const result = repeatText({ ...initialValues, repeatAmount }, text);
+    expect(result).toBe('');
+  });
+});