Add tests for Bootstrap 5 floating labels

Related to commit 21b30f7

Reference:
https://getbootstrap.com/docs/5.0/forms/floating-labels/

tests/Fields/FloatingLabelTest.php

@@ -0,0 +1,173 @@
+<?php
+namespace Former\Fields;
+
+use Former\TestCases\FormerTests;
+use HtmlObject\Element;
+
+class FloatingLabelTest extends FormerTests
+{
+	/**
+	 * An array of dummy options
+	 *
+	 * @var array
+	 */
+	protected $options = array('One', 'Two', 'Three');
+	public function setUp(): void
+	{
+		parent::setUp();
+		$this->former->framework('TwitterBootstrap5');
+		$this->former->vertical_open()->__toString();
+	}
+
+	////////////////////////////////////////////////////////////////////
+	////////////////////////////// MATCHERS ////////////////////////////
+	////////////////////////////////////////////////////////////////////
+
+	/**
+	 * Matches a floating label
+	 *
+	 * @return array
+	 */
+	public function matchFloatingLabel()
+	{
+		return array(
+			'tag' => 'label',
+		);
+	}
+
+	/**
+	 * Matches an input text tag
+	 *
+	 * @return array
+	 */
+	public function matchFloatingInputText()
+	{
+	return array(
+			'tag'        => 'input',
+			'attributes' => array(
+				'id'       => 'foo',
+				'class'    => 'form-control',
+				'placeholder' => 'Dummy placeholder',
+				'type'     => 'text',
+				'name'     => 'foo',
+			),
+		);
+	}
+
+	/**
+	 * Matches a textarea tag
+	 *
+	 * @return array
+	 */
+	public function matchFloatingTextarea()
+	{
+	return array(
+			'tag'        => 'textarea',
+			'attributes' => array(
+				'id'       => 'foo',
+				'class'    => 'form-control',
+				'placeholder' => 'Dummy placeholder',
+				'name'     => 'foo',
+			),
+		);
+	}
+
+	/**
+	 * Matches a select tag
+	 *
+	 * @return array
+	 */
+	public function matchFloatingSelect()
+	{
+	return array(
+			'tag'        => 'select',
+			'children'	=> array(
+				'count' => 4,
+				'only' => array('tag' => 'option'),
+			),
+			'attributes' => array(
+				'id'       => 'foo',
+				'class'    => 'form-select',
+				'name'     => 'foo',
+			),
+		);
+	}
+
+	////////////////////////////////////////////////////////////////////
+	////////////////////////////// ASSERTIONS //////////////////////////
+	////////////////////////////////////////////////////////////////////
+
+	/**
+	 * Matches a Form Floating Label Group
+	 *
+	 * @param  string $input
+	 * @param  string $label
+	 *
+	 * @return boolean
+	 */
+	protected function formFloatingLabelGroup(
+		$input = '<input class="form-control" placeholder="Dummy placeholder" id="foo" type="text" name="foo">',
+		$label = '<label for="foo" class="form-label">Foo</label>'
+	) {
+		return '<div class="mb-3 form-floating">'.$input.$label.'</div>';
+	}
+
+	////////////////////////////////////////////////////////////////////
+	//////////////////////////////// TESTS /////////////////////////////
+	////////////////////////////////////////////////////////////////////
+
+	public function testCanCreateFloatingLabelInputText()
+	{
+		$input = $this->former
+			->text('foo')
+			->placeholder('Dummy placeholder')
+			->floatingLabel()
+			->__toString();
+
+		$this->assertHTML($this->matchFloatingLabel(), $input);
+		$this->assertHTML($this->matchFloatingInputText(), $input);
+
+		$matcher = $this->formFloatingLabelGroup();
+		$this->assertEquals($matcher, $input);
+	}
+
+	public function testCanCreateFloatingLabelTextarea()
+	{
+		$textarea = $this->former
+			->textarea('foo')
+			->placeholder('Dummy placeholder')
+			->floatingLabel()
+			->__toString();
+
+		$this->assertHTML($this->matchFloatingLabel(), $textarea);
+		$this->assertHTML($this->matchFloatingTextarea(), $textarea);
+
+		$matcher = $this->formFloatingLabelGroup('<textarea class="form-control" placeholder="Dummy placeholder" id="foo" name="foo"></textarea>');
+		$this->assertEquals($matcher, $textarea);
+	}
+
+	public function testCanCreateFloatingLabelSelect()
+	{
+		$selectElement = $this->former
+			->select('foo')
+			->options($this->options)
+			->placeholder('Choose an option')
+			->floatingLabel();
+
+		$select = $selectElement->__toString();
+
+		$this->assertHTML($this->matchFloatingLabel(), $select);
+		$this->assertHTML($this->matchFloatingSelect(), $select);
+
+		$placeholderOption = Element::create('option', 'Choose an option', array('value' => '', 'disabled' => 'disabled', 'selected' => 'selected'));
+
+		$options = array($placeholderOption);
+		foreach ($this->options as $key => $option) {
+			$options[] = Element::create('option', $option, array('value' => $key));
+		}
+		$this->assertEquals($selectElement->getOptions(), $options);
+
+		$matcher = $this->formFloatingLabelGroup('<select class="form-select" id="foo" name="foo">'.implode('', $options).'</select>');
+		$this->assertEquals($matcher, $select);
+	}
+}