<?php

require_once ADPLUGG_INCLUDES . 'widgets/class-adplugg-widget.php';

/**
 * The Test_AdPlugg_Widget class includes tests for testing the AdPlugg_Widget
 * class.
 *
 * @package AdPlugg
 * @since 1.1.16
 */
class Test_AdPlugg_Widget extends WP_UnitTestCase {

	/**
	 * Test the constructor.
	 */
	public function test_constructor() {
		$adplugg_widget = new AdPlugg_Widget();

		//Assert that the widget is constructed
		$this->assertEquals( 'AdPlugg_Widget', get_class( $adplugg_widget ) );
	}

	/**
	 * Test that the widget is registered with WordPress.
	 */
	public function test_widget_registration() {
		$widgets = array_keys( $GLOBALS['wp_widget_factory']->widgets );

		//Assert that the widget is registered
		$this->assertTrue( in_array( 'AdPlugg_Widget', $widgets ) );
	}

	/**
	 * Test the form function.
	 */
	public function test_form() {
		$adplugg_widget = new AdPlugg_Widget();

		//Assert that the widget form is output.
		ob_start();
		$instance = null;
		$adplugg_widget->form( $instance );
		$outbound = ob_get_contents();
		ob_end_clean();
		$this->assertContains( 'adplugg-widget-fieldset', $outbound );
	}

	/**
	 * Test the update function.
	 */
	public function test_update() {
		$old_title      = 'old_title';
		$new_title      = 'new_title';
		$old_zone       = 'old_zone';
		$new_zone       = 'new_zone';
		$old_width      = 100;
		$new_width      = 200;
		$old_height     = 300;
		$new_height     = 400;
		$old_default    = 0;
		$new_default    = 1;
		$adplugg_widget = new AdPlugg_Widget();

		$old_instance            = array();
		$old_instance['title']   = $old_title;
		$old_instance['zone']    = $old_zone;
		$old_instance['width']   = $old_width;
		$old_instance['height']  = $old_height;
		$old_instance['default'] = $old_default;

		$new_instance            = array();
		$new_instance['title']   = $new_title;
		$new_instance['zone']    = $new_zone;
		$new_instance['width']   = $new_width;
		$new_instance['height']  = $new_height;
		$new_instance['default'] = $new_default;

		//Run the function.
		$ret_instance = $adplugg_widget->update( $new_instance, $old_instance );

		//Assert that the ret_instance title is the new title
		$this->assertEquals( $ret_instance['title'], $new_title );

		//Assert that the ret_instance zone is the new zone
		$this->assertEquals( $ret_instance['zone'], $new_zone );

		//Assert that the ret_instance width is the new width
		$this->assertEquals( $ret_instance['width'], $new_width );

		//Assert that the ret_instance height is the new height
		$this->assertEquals( $ret_instance['height'], $new_height );

		//Assert that the ret_instance default is the new default
		$this->assertEquals( $ret_instance['default'], $new_default );
	}

	/**
	 * Test the update function's validation strips illegal and malicious data.
	 */
	public function test_update_validation_passes_when_valid() {
		$old_title      = 'old_title';
		$new_title      = 'Our Sponsors';
		$old_zone       = 'old_zone';
		$new_zone       = 'new_zone';
		$old_width      = 100;
		$new_width      = 200;
		$old_height     = 300;
		$new_height     = 400;
		$old_default    = 0;
		$new_default    = 1;
		$adplugg_widget = new AdPlugg_Widget();

		$old_instance            = array();
		$old_instance['title']   = $old_title;
		$old_instance['zone']    = $old_zone;
		$old_instance['width']   = $old_width;
		$old_instance['height']  = $old_height;
		$old_instance['default'] = $old_default;

		$new_instance            = array();
		$new_instance['title']   = $new_title;
		$new_instance['zone']    = $new_zone;
		$new_instance['width']   = $new_width;
		$new_instance['height']  = $new_height;
		$new_instance['default'] = $new_default;

		//Run the function.
		$ret_instance = $adplugg_widget->update( $new_instance, $old_instance );

		//Assert that the validation passed and the title was set as expected
		$this->assertEquals( $new_title, $ret_instance['title'] );

		//Assert that the validation passed and the zone was set as expected
		$this->assertEquals( $new_zone, $ret_instance['zone'] );

		//Assert that the validation passed and the width was set as expected
		$this->assertEquals( $new_width, $ret_instance['width'] );

		//Assert that the validation passed and the height was set as expected
		$this->assertEquals( $new_height, $ret_instance['height'] );

		//Assert that the validation passed and the default was set as expected
		$this->assertEquals( $new_default, $ret_instance['default'] );
	}

	/**
	 * Test the update function's validation strips illegal and malicious data.
	 */
	public function test_update_validation_strips_illegals() {
		$old_title      = 'old_title';
		$new_title      = '"><script>alert(document.cookie)</script>';
		$old_zone       = 'old_zone';
		$new_zone       = '"><script>alert(document.cookie)</script>';
		$old_width      = 100;
		$new_width      = '"><script>alert(document.cookie)</script>';
		$old_height     = 300;
		$new_height     = '"><script>alert(document.cookie)</script>';
		$old_default    = 0;
		$new_default    = '"><script>alert(document.cookie)</script>';
		$adplugg_widget = new AdPlugg_Widget();

		$old_instance            = array();
		$old_instance['title']   = $old_title;
		$old_instance['zone']    = $old_zone;
		$old_instance['width']   = $old_width;
		$old_instance['height']  = $old_height;
		$old_instance['default'] = $old_default;

		$new_instance            = array();
		$new_instance['title']   = $new_title;
		$new_instance['zone']    = $new_zone;
		$new_instance['width']   = $new_width;
		$new_instance['height']  = $new_height;
		$new_instance['default'] = $new_default;

		//Run the function.
		$ret_instance = $adplugg_widget->update( $new_instance, $old_instance );

		//Assert that the malicious code was removed
		$illegal_regex = '/\<script\>/';
		//echo $ret_instance['title'];
		//echo $ret_instance['zone'];
		$this->assertEquals( 0, preg_match( $illegal_regex, $ret_instance['title'] ) );

		//Assert that the ret_instance zone does not include illegal characters
		$this->assertEquals( 0, preg_match( $illegal_regex, $ret_instance['zone'] ) );

		//Assert that the ret_instance width does not include illegal characters
		$this->assertEquals( 0, preg_match( $illegal_regex, $ret_instance['width'] ) );

		//Assert that the ret_instance height does not include illegal characters
		$this->assertEquals( 0, preg_match( $illegal_regex, $ret_instance['height'] ) );

		//Assert that the ret_instance default does not include illegal characters
		$this->assertEquals( 0, preg_match( $illegal_regex, $ret_instance['default'] ) );
	}

	/**
	 * Test the widget function.
	 */
	public function test_widget() {
		// Set up the variables.
		$adplugg_widget        = new AdPlugg_Widget();
		$args                  = array();
		$args['before_widget'] = '<section>';
		$args['after_widget']  = '</section>';
		$args['before_title']  = '<h3>';
		$args['after_title']   = '</h3>';
		$instance              = array();
		$instance['title']     = 'Test Title';

		$expected = '<section>' .
					'<h3>Test Title</h3>' .
					'<div class="adplugg-tag"></div>' .
					'</section>';

		// Assert that the widget output is as expected.
		ob_start();
		$adplugg_widget->widget( $args, $instance );
		$outbound = ob_get_contents();
		ob_end_clean();
		$this->assertEquals(
			$expected,
			$outbound
		);
	}

	/**
	 * Test the widget function outputs zone info (when set).
	 */
	public function test_widget_zones() {
		//Set up the variables.
		$adplugg_widget        = new AdPlugg_Widget();
		$args                  = array();
		$args['before_widget'] = '';
		$args['after_widget']  = '';
		$instance              = array();
		$instance['zone']      = 'test_zone';

		//Assert that the widget form is output with zone info.
		ob_start();
		$adplugg_widget->widget( $args, $instance );
		$outbound = ob_get_contents();
		ob_end_clean();
		$this->assertContains( 'data-adplugg-zone="test_zone"', $outbound );
	}

	/**
	 * Test the widget function outputs title (when set).
	 */
	public function test_widget_title() {
		//Set up the variables.
		$adplugg_widget        = new AdPlugg_Widget();
		$args                  = array();
		$args['before_widget'] = '';
		$args['after_widget']  = '';
		$args['before_title']  = '';
		$args['after_title']   = '';
		$instance              = array();
		$instance['title']     = 'test_title';

		//Assert that the widget form is output with a title.
		ob_start();
		$adplugg_widget->widget( $args, $instance );
		$outbound = ob_get_contents();
		ob_end_clean();
		$this->assertContains( 'test_title', $outbound );
	}

	/**
	 * Test the widget function outputs the expected Facebook Instant Articles
	 * output when all values on the widget are set.
	 */
	public function test_widget_render_for_instant_articles_with_all_values() {
		//Set up the variables.
		$adplugg_widget                        = new AdPlugg_Widget();
		$args                                  = array();
		$args['before_widget']                 = '';
		$args['after_widget']                  = '';
		$args['before_title']                  = '';
		$args['after_title']                   = '';
		$args['id']                            = 'facebook_ia_header_ads';
		$instance                              = array();
		$instance['zone']                      = 'test_zone';
		$instance['width']                     = 100;
		$instance['height']                    = 200;
		$instance['default']                   = 1;
		$GLOBALS['adplugg_fbia_canonical_url'] = 'http://www.example.com/blog/hello-world/';

		//Install an access code
		$options = array();
		update_option( ADPLUGG_OPTIONS_NAME, $options );
		$options['access_code'] = 'test';
		update_option( ADPLUGG_OPTIONS_NAME, $options );

		//Assert that the widget form is output with the expected values from
		//the widget settings.
		ob_start();
		$adplugg_widget->widget( $args, $instance );
		$outbound = ob_get_contents();
		ob_end_clean();
		$this->assertContains( 'op-ad', $outbound );
		$this->assertContains( 'test_zone', $outbound );
		$this->assertContains( '100', $outbound );
		$this->assertContains( '200', $outbound );
		$this->assertContains( 'op-ad-default', $outbound );
		$this->assertContains( 'www.example.com', $outbound );
		$this->assertContains( '/blog/hello-world/', urldecode( $outbound ) );
	}

	/**
	 * Test the widget function outputs the expected Facebook Instant Articles
	 * output when the widget settings aren't filled out.
	 */
	public function test_widget_render_for_instant_articles_with_no_values() {
		//Set up the variables.
		$adplugg_widget                        = new AdPlugg_Widget();
		$args                                  = array();
		$args['before_widget']                 = '';
		$args['after_widget']                  = '';
		$args['before_title']                  = '';
		$args['after_title']                   = '';
		$args['id']                            = 'facebook_ia_header_ads';
		$instance                              = array();
		$instance['zone']                      = null;
		$instance['width']                     = null;
		$instance['height']                    = null;
		$instance['default']                   = 0;
		$GLOBALS['adplugg_fbia_canonical_url'] = 'http://www.example.com/blog/hello-world';

		//Install an access code
		$options = array();
		update_option( ADPLUGG_OPTIONS_NAME, $options );
		$options['access_code'] = 'test';
		update_option( ADPLUGG_OPTIONS_NAME, $options );

		//Assert that the widget form is output with a title.
		ob_start();
		$adplugg_widget->widget( $args, $instance );
		$outbound = ob_get_contents();
		ob_end_clean();
		$this->assertContains( 'op-ad', $outbound );
		$this->assertContains( '300', $outbound );
		$this->assertContains( '250', $outbound );
		$this->assertNotContains( 'op-ad-default', $outbound );
	}

	/**
	 * Test the widget function is rendered without AdPlugg ads if no access
	 * code is entered.
	 */
	public function test_widget_render_for_instant_articles_with_no_access_code() {
		//Set up the variables.
		$adplugg_widget                        = new AdPlugg_Widget();
		$args                                  = array();
		$args['before_widget']                 = '';
		$args['after_widget']                  = '';
		$args['before_title']                  = '';
		$args['after_title']                   = '';
		$args['id']                            = 'facebook_ia_header_ads';
		$instance                              = array();
		$instance['zone']                      = null;
		$instance['width']                     = null;
		$instance['height']                    = null;
		$instance['default']                   = 0;
		$GLOBALS['adplugg_fbia_canonical_url'] = 'http://www.example.com/blog/hello-world';

		//Assert that the widget form is output with a title.
		ob_start();
		$adplugg_widget->widget( $args, $instance );
		$outbound = ob_get_contents();
		ob_end_clean();
		$this->assertNotContains( 'op-ad', $outbound );
	}

}