added type method

src/Codeception/Module/WebDriver.php

@@ -1826,6 +1826,37 @@ public function clearField($field)
         $el->clear();
     }
 
+    /**
+     * Type in characters on active element.
+     * With a second parameter you can specify delay between key presses. 
+     * 
+     * ```php
+     * <?php
+     * // activate input element
+     * $I->click('#input');
+     * 
+     * // type text in active element
+     * $I->type('Hello world');
+     * 
+     * // type text with a 1sec delay between chars
+     * $I->type('Hello World', 1);
+     * ```
+     * 
+     * This might be useful when you an input reacts to typing and you need to slow it down to emulate human behavior.
+     * For instance, this is how Credit Card fields can be filled in.
+     * 
+     * @param $text
+     * @param $delay [sec]
+     */
+    public function type($text, $delay = 0) {
+        $keys = str_split($text);
+        foreach ($keys as $key) {
+            sleep($delay);
+            $this->webDriver->getKeyboard()->pressKey($key);
+        }
+        sleep($delay);
+    }
+
     public function attachFile($field, $filename)
     {
         $el = $this->findField($field);

tests/unit/Codeception/Module/TestsForWeb.php

@@ -1289,7 +1289,7 @@ public function testLinkWithDocRelativeURLFromDefaultPage()
 
     /*
      * @env chrome
-     * https://github.com/Codeception/Codeception/issues/1507
+     * @env headless
      */
     public function testSubmitFormWithDefaultRadioAndCheckboxValues()
     {

tests/web/WebDriverTest.php

@@ -365,6 +365,16 @@ public function testAppendFieldTextarea()
         $this->assertEquals('eat code', $form['description']);
     }
 
+    public function testTypeOnTextarea()
+    {
+        $this->module->amOnPage('/form/textarea');
+        $this->module->fillField('form #description', '');
+        $this->module->type('Hello world');
+        $this->module->click('Submit');
+        $form = data::get('form');
+        $this->assertEquals('Hello world', $form['description']);
+    }
+
     public function testAppendFieldTextareaFails()
     {
         $this->shouldFail();
@@ -381,6 +391,16 @@ public function testAppendFieldText()
         $this->assertEquals('OLD_VALUE code', $form['name']);
     }
 
+    public function testTypeOnTextField()
+    {
+        $this->module->amOnPage('/form/field');
+        $this->module->fillField('form #name', '');
+        $this->module->type('Hello world');
+        $this->module->click('Submit');
+        $form = data::get('form');
+        $this->assertEquals('Hello world', $form['name']);
+    }
+
     public function testAppendFieldTextFails()
     {
         $this->shouldFail();