added a few accesibility checks. more to come.

src/Context/AccesibilityContext.php

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+<?php
+
+namespace Behatch\Context;
+
+use Behat\Gherkin\Node\TableNode;
+use Behat\Mink\Exception\ExpectationException;
+use Behat\Mink\Exception\ResponseTextException;
+use Behat\Mink\Exception\ElementNotFoundException;
+use WebDriver\Exception\StaleElementReference;
+use Behat\Behat\Tester\Exception\PendingException;
+
+class AccesibilityContext extends BaseContext
+{
+    /**
+     * @Then all images should have an alt attribute
+     */
+    public function allImagesShouldHaveAnAltAttribute()
+    {
+        $images = $this->getSession()->getPage()->findAll('xpath', '//img[not(@alt)]');
+        if ($images !== null) {
+            throw new \Exception("There are images without an alt attribute");
+        } 
+    }
+
+    /**
+     * @Then the title should not be longer than :arg1
+     */
+    public function theTitleShouldNotBeLongerThan($arg1)
+    {
+        $title = $this->getSession()->getPage()->find('css', 'h1')->getText();
+        if (strlen($title) > $arg1) {
+            throw new \Exception("The h1 title is more than '$arg1' characters long");
+        }
+    }
+
+    /**
+     * @Then all tables should have a table header
+     */
+    public function allTablesShouldHaveATableHeader()
+    {
+        $tables = $this->getSession()->getPage()->findAll('xpath', '//table/*[not(th)]');
+        if ($tables !== null) {
+            throw new \Exception("There are tables without a table header");
+        }
+    }
+
+    /**
+     * @Then all tables should have at least one data row
+     */
+    public function allTablesShouldHaveAtLeastOneDataRow()
+    {
+        $tables = $this->getSession()->getPage()->findAll('xpath', '//table/*[not(td)]');
+        if ($tables !== null) {
+            throw new \Exception("There are tables without a data row");
+        }
+    }    
+}

src/class_aliases/Context/AccesibilityContext.php

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+<?php
+
+@trigger_error('The Sanpi\\Behatch\\Context\\AccesibilityContext class is deprecated since version 2.3 and will be removed in 3.0. Use the Behatch\\Context\\AccesibilityContext class instead.', E_USER_DEPRECATED);
+
+class_alias('\\Behatch\\Context\\AccesibilityContext', '\\Sanpi\\Behatch\\Context\\AccesibilityContext');

tests/features/accesibility.feature

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+  @accesibility
+  Feature: toegankelijkheid verschillende types paginas
+
+  @accesibility
+  Scenario Outline: max 1 h1 and min 1 h2 on page
+    Given I am on "<url>"
+    Then I should see 1 "h1" elements
+    And I should see an "h2" element
+
+  Examples:
+    | url |
+    | / |
+
+  @accesibility
+  Scenario Outline: h1 length check
+    Given I am on "<url>"
+    Then the title should not be longer than 70
+
+  Examples:
+    | url |
+    | / |
+
+  @accesibility
+  Scenario Outline: alt check on images
+    Given I am on "<url>"
+    Then all images should have an alt attribute
+
+  Examples:
+    | url |
+    | / |
+
+  @accesibility
+  Scenario Outline: check table headers
+    Given I am on "<url>"
+    Then all tables should have a table header
+
+  Examples:
+    | url |
+    | / |
+
+  @accesibility
+  Scenario Outline: check table data
+    Given I am on "<url>"
+    Then all tables should have at least one data row
+
+  Examples:
+    | url |
+    | / |