Behat, MinkExtension & Selenium2 Driver - asserts on form elements

AssertFeatureContext.php

<?php
/**
 * All of those functions can be used to verify the validity of what is on the page
 *
 * @author netraagal
 */
namespace App\Features;
use Behat\Mink\Driver\Selenium2Driver;
use Behat\Mink\Element\NodeElement;
use \Exception;
/**
 * NOTE:
 * the function GetElement used is on my other gist GetElementFeatureContext.php
 */
class AssertFeatureContext extends MinkContext implements SnippetAcceptingContext
{
  /**
     * assertInputContains
     *
     * @Then /^(?:|the )(?:element|input) "(?P<element>[^"]+)" should contains "(?P<value>[^"]+)"$/
     *
     * @param   string  $element
     * @param   string  $value
     * @return  FeatureContext
     */
    public function assertInputContains(string $element, string $value): self
    {
        $result = $this->getElement($element, "input");

        if ($result->getValue() !== $value){
            throw new Exception(
                sprintf(
                    "Error : element '%s' of type input should contains '%s' but contains '%s'",
                    $element,
                    $value,
                    $result->getValue()
                )
            );
        }

        return $this;
    }

    /**
     * assertIsChecked
     *
     * @Then  /^(?:|the )"(?P<element>[^"]+)" should be checked$/
     *
     * @param   string  $element
     * @return  FeatureContext
     * @throws  Exception
     */
    public function assertIsChecked(string $element): self
    {

        $result = $this->getElement($element, "input");

        if ($result===null)
        {
            throw new Exception(
                sprintf(
                    "Error : element '%s' of type radio button or checkbox not found",
                    $element
                )
            );
        }

        if (!$result->isChecked())
        {
            throw new Exception(
                sprintf(
                    "Error : element '%s' should be checked",
                    $element
                )
            );
        }

        return $this;
    }

    /**
     * assertIsNotChecked
     *
     * @Then  /^(?:|the )"(?P<element>[^"]+)" should not be checked$/
     *
     * @param   string  $element
     * @return  FeatureContext
     * @throws  Exception
     */
    public function assertIsNotChecked(string $element): self
    {
        $result = $this->getElement($element, "input");

        if ($result===null)
        {
            throw new Exception(
                sprintf(
                    "Error : element '%s' of type radio button or checkbox not found",
                    $element
                )
            );
        }

        if ($result->isChecked())
        {
            throw new Exception(
                sprintf(
                    "Error : element '%s' should not be checked",
                    $element
                )
            );
        }

        return $this;

    }

    /**
     * assertIsSelected
     *
     * @Then /^(?:|the |the option )"(?P<option>[^"]+)" should be selected in "(?P<select>[^"]+)"$/
     *
     * @param   string        $option
     * @param   string        $select
     * @return  FeatureContext
     * @throws  Exception 
     */
    public function assertIsSelected($option, $select): self
    {

        if ($this->getElement($select, "select")->getValue() !== $this->getElement($option, "option")->getAttribute('value')) {

            throw new Exception(
                sprintf(
                    "Error : the option '%s' is not selected in the select '%s'.",
                    $option,
                    $select
                )
            );
         }
         return $this;
                
    }

    /**
     * assertIsNotSelected
     *
     * @Then /^(?:|the |the option )"(?P<option>[^"]+)" should not be selected in "(?P<select>[^"]+)"$/
     *
     * @param  string        $option
     * @param  string        $select
     * @return FeatureContext
     * @throws Exception 
     */
    public function assertIsNotSelected($option, $select): self
    {

        if ($this->getElement($select, "select")->getValue() === $this->getElement($option, "option")->getAttribute('value')) {

            throw new Exception(
                sprintf(
                    "Error : the option '%s' is selected in the select '%s'.",
                    $option,
                    $select
                )
            );
         }
         return $this;
                
    }

    /**
     * assertElementWithClassExists
     *
     * @Then /^(?:|the )element(?:|s) with class(?:|es) "(?P<class>[^"]+)" (?:exist|exists|is visible|are visible)$/
     *
     * @param   string  $class
     * @return  FeatureContext
     */
    public function assertElementWithClassExists(string $class): self
    {
        $classes = ".".implode(".", explode(", ", $class));
        $element = $this->assertSession()->elementExists('css', $classes);
        return $this;
    }

}