test: add utils tests (#197)

Co-authored-by: Danilo Alves <138066684+danilo-moreira-brisa@users.noreply.github.com>

src/components/utils/spacing.test.ts

@@ -0,0 +1,8 @@
+import { spacing } from './spacing';
+
+describe('spacing', () => {
+  it('should return the value with pixels in a scale of 8', () => {
+    const value = 2;
+    expect(spacing(value)).toBe('16px');
+  });
+});

src/components/utils/validateHexColor.test.ts

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+import { validateHexColor } from './validateHexColor';
+
+const validHexColors = ['#000000', '#000'];
+const invalidHexColors = ['#AABBCC000', '#XXBBCC'];
+describe('validateHexColor', () => {
+  it.each(invalidHexColors)(
+    'should return false if an invalid hexadecimal color is provided',
+    (value) => {
+      expect(validateHexColor(value)).toBe(false);
+    }
+  );
+  it.each(validHexColors)(
+    'should return false if a valid hexadecimal color is provided',
+    (value) => {
+      expect(validateHexColor(value)).toBe(true);
+    }
+  );
+});