feat: Best Practices (#102)

* feat: best practices

* feat: add tests workflow

* feat: add best-practices workflow

* fix: wrong indentation in workflow

src/shared/util/tests/string.test.ts

@@ -0,0 +1,39 @@
+import { describe, expect, it } from 'vitest';
+
+import { capitalize } from '../string';
+
+// TODO: Fix `string.ts` and `string.test.ts` to make the tests pass
+// `capitalize` is adding an extra space at the end of the word.
+describe('capitalize', () => {
+    it('should capitalize the first letter of each word', () => {
+        // Debug
+        const word = 'hello world';
+        const capitalized = capitalize(word);
+        console.log(capitalize(word));
+        console.log(capitalized.length);
+        console.log(capitalized.split(''));
+
+        // Test case 1: Single word
+        expect(capitalize('hello')).toBe('Hello');
+
+        // Test case 2: Multiple words
+        expect(capitalize('hello world')).toBe('Hello World');
+
+        // Test case 3: Words with hyphens
+        expect(capitalize('hello-world')).toBe('Hello-World');
+
+        // Test case 4: Words with hyphens and spaces
+        expect(capitalize('hello-world test')).toBe('Hello-World Test');
+    });
+
+    it('should not change the capitalization of the remaining letters', () => {
+        // Test case 1: All lowercase
+        expect(capitalize('hello')).toBe('Hello');
+
+        // Test case 2: All uppercase
+        expect(capitalize('WORLD')).toBe('WORLD');
+
+        // Test case 3: Mixed case
+        expect(capitalize('HeLLo WoRLd')).toBe('Hello World');
+    });
+});