Add PrefixSubmitButton with Test

src/Common/PrefixSubmitButton.php

@@ -0,0 +1,23 @@
+<?php
+
+namespace ipl\Web\Common;
+
+use ipl\Html\Attribute;
+use ipl\Html\Contract\FormSubmitElement;
+use ipl\Html\FormElement\SubmitElement;
+
+trait PrefixSubmitButton
+{
+    protected function createSubmitButton(FormSubmitElement $originalSubmitButton): SubmitElement
+    {
+        $attr = clone $originalSubmitButton->getAttributes();
+        $attr->setAttribute(
+            Attribute::create('class', 'hidePrefixElement')
+        );
+
+        $submit = new SubmitElement($originalSubmitButton->getName(), $attr);
+        $submit->setValue($originalSubmitButton->getValue());
+
+        return $submit;
+    }
+}

tests/common/PrefixSubmitButtonTest.php

@@ -0,0 +1,27 @@
+<?php
+
+use ipl\Html\FormElement\SubmitElement;
+use ipl\Tests\Web\TestCase;
+use ipl\Web\Common\PrefixSubmitButton;
+
+class PrefixSubmitButtonTest extends TestCase
+{
+    use PrefixSubmitButton;
+
+    public function testCreatingPrefixSubmitButton(): void
+    {
+        $submitButton = new SubmitElement('test_submit', [
+            'class' => 'autosubmit'
+        ]);
+
+        $prefixButton = $this->createSubmitButton($submitButton);
+
+        // Name should stay the same
+        $this->assertSame($submitButton->getName(), 'test_submit');
+        $this->assertSame($prefixButton->getName(), 'test_submit');
+
+        // Class Attribute should change to `hideElement`
+        $this->assertSame($submitButton->getAttributes()->get('class')->getValue(), 'autosubmit');
+        $this->assertSame($prefixButton->getAttributes()->get('class')->getValue(), 'hideElement');
+    }
+}