diff --git a/drupalci.yml b/drupalci.yml
new file mode 100644
index 0000000..234cf26
--- /dev/null
+++ b/drupalci.yml
@@ -0,0 +1,67 @@
+# This is the DrupalCI testbot build file for Drupal core.
+# Learn to make one for your own drupal.org project:
+# https://www.drupal.org/drupalorg/docs/drupal-ci/customizing-drupalci-testing
+build:
+  assessment:
+    validate_codebase:
+      phplint:
+      csslint:
+        halt-on-fail: false
+      eslint:
+        # A test must pass eslinting standards check in order to continue processing.
+        halt-on-fail: false
+      phpcs:
+        # phpcs will use core's specified version of Coder.
+        sniff-all-files: false
+        halt-on-fail: false
+    testing:
+      container_command:
+        commands: "cd ${SOURCE_DIR} &&
+        sudo -u www-data mkdir libraries &&
+        sudo -u www-data curl https://gitlab.com/meno/dropzone/-/archive/v5.5.0/dropzone-v5.5.0.tar.gz --output dropzone.tar.gz --silent &&
+        sudo -u www-data tar xzf dropzone.tar.gz &&
+        sudo -u www-data mv dropzone-v5.5.0 dropzone &&
+        pwd && ls -shal"
+        halt-on-fail: true
+      # run_tests task is executed several times in order of performance speeds.
+      # halt-on-fail can be set on the run_tests tasks in order to fail fast.
+      # suppress-deprecations is false in order to be alerted to usages of
+      # deprecated code.
+      run_tests.phpunit:
+        types: 'PHPUnit-Unit'
+        testgroups: '--all'
+        suppress-deprecations: false
+        halt-on-fail: false
+      run_tests.kernel:
+        types: 'PHPUnit-Kernel'
+        testgroups: '--all'
+        suppress-deprecations: false
+        halt-on-fail: false
+      run_tests.simpletest:
+        types: 'Simpletest'
+        testgroups: '--all'
+        suppress-deprecations: false
+        halt-on-fail: false
+      run_tests.build:
+        types: 'PHPUnit-Build'
+        testgroups: '--all'
+        suppress-deprecations: false
+        halt-on-fail: false
+      run_tests.functional:
+        types: 'PHPUnit-Functional'
+        testgroups: '--all'
+        suppress-deprecations: false
+        halt-on-fail: false
+      run_tests.javascript:
+        concurrency: 15
+        types: 'PHPUnit-FunctionalJavascript'
+        testgroups: '--all'
+        suppress-deprecations: false
+        halt-on-fail: false
+      # Run nightwatch testing.
+      # @see https://www.drupal.org/project/drupal/issues/2869825
+      nightwatchjs:
+#      container_command.drupal_project_templates:
+#        commands:
+#          - "sudo -u www-data ${SOURCE_DIR}/core/tests/scripts/test_composer_project_templates.sh"
+#        halt-on-fail: true
diff --git a/tests/modules/dropzonejs_test/composer.json b/tests/modules/dropzonejs_test/composer.json
new file mode 100644
index 0000000..952ca92
--- /dev/null
+++ b/tests/modules/dropzonejs_test/composer.json
@@ -0,0 +1,44 @@
+{
+  "name": "drupal/dropzonejs",
+  "description": "Drupal integration for DropzoneJS - An open source library that provides drag’n’drop file uploads with image previews.",
+  "type": "drupal-module",
+  "homepage": "https://www.drupal.org/project/dropzonejs",
+  "keywords": ["Drupal", "DropzoneJS"],
+  "license": "GPL-2.0+",
+  "minimum-stability": "dev",
+  "prefer-stable": true,
+  "support": {
+    "issues": "https://www.drupal.org/project/issues/dropzonejs",
+    "irc": "irc://irc.freenode.org/drupal-contribute",
+    "source": "https://www.drupal.org/project/dropzonejs"
+  },
+  "authors": [
+    {
+      "name": "Janez Urevc",
+      "homepage": "https://drupal.org/u/slashrsm",
+      "role": "Maintainer"
+    },
+    {
+      "name": "Christian Fritsch",
+      "homepage": "https://drupal.org/u/chrfritsch",
+      "role": "Maintainer"
+    },
+    {
+      "name": "Primoz Hmeljak",
+      "homepage": "https://drupal.org/u/Primsi",
+      "role": "Maintainer"
+    },
+    {
+      "name": "See other contributors",
+      "homepage": "https://www.drupal.org/node/1998478/committers",
+      "role": "contributor"
+    }
+  ],
+  "require": {},
+  "require-dev": {
+    "drupal/entity_browser": "2.x-dev"
+  },
+  "suggest": {
+    "enyo/dropzone": "Required to user drupal/dropzonejs. Dropzone is an easy to use drag'n'drop library."
+  }
+}
diff --git a/tests/modules/dropzonejs_test/config/install/core.entity_form_display.media.dropzonejs_media.default.yml b/tests/modules/dropzonejs_test/config/install/core.entity_form_display.media.dropzonejs_media.default.yml
new file mode 100644
index 0000000..b0e5025
--- /dev/null
+++ b/tests/modules/dropzonejs_test/config/install/core.entity_form_display.media.dropzonejs_media.default.yml
@@ -0,0 +1,61 @@
+langcode: en
+status: true
+dependencies:
+  config:
+    - field.field.media.dropzonejs_media.field_media_image
+    - image.style.thumbnail
+    - media.type.dropzonejs_media
+  module:
+    - image
+    - path
+id: media.dropzonejs_media.default
+targetEntityType: media
+bundle: dropzonejs_media
+mode: default
+content:
+  created:
+    type: datetime_timestamp
+    weight: 10
+    region: content
+    settings: {  }
+    third_party_settings: {  }
+  field_media_image:
+    weight: 0
+    settings:
+      progress_indicator: throbber
+      preview_image_style: thumbnail
+    third_party_settings: {  }
+    type: image_image
+    region: content
+  name:
+    type: string_textfield
+    weight: -5
+    region: content
+    settings:
+      size: 60
+      placeholder: ''
+    third_party_settings: {  }
+  path:
+    type: path
+    weight: 30
+    region: content
+    settings: {  }
+    third_party_settings: {  }
+  status:
+    type: boolean_checkbox
+    settings:
+      display_label: true
+    weight: 100
+    region: content
+    third_party_settings: {  }
+  uid:
+    type: entity_reference_autocomplete
+    weight: 5
+    settings:
+      match_operator: CONTAINS
+      size: 60
+      placeholder: ''
+      match_limit: 10
+    region: content
+    third_party_settings: {  }
+hidden: {  }
diff --git a/tests/modules/dropzonejs_test/config/install/core.entity_form_display.node.dropzonejs_test.default.yml b/tests/modules/dropzonejs_test/config/install/core.entity_form_display.node.dropzonejs_test.default.yml
new file mode 100644
index 0000000..0cb4bbb
--- /dev/null
+++ b/tests/modules/dropzonejs_test/config/install/core.entity_form_display.node.dropzonejs_test.default.yml
@@ -0,0 +1,82 @@
+uuid: cc12d4b9-9cb9-43d3-b92a-b6106b6df5f1
+langcode: en
+status: true
+dependencies:
+  config:
+    - entity_browser.browser.dropzonejs_eb_test
+    - field.field.node.dropzonejs_test.field_dropzonejs_image
+    - node.type.dropzonejs_test
+  module:
+    - entity_browser
+    - path
+id: node.dropzonejs_test.default
+targetEntityType: node
+bundle: dropzonejs_test
+mode: default
+content:
+  created:
+    type: datetime_timestamp
+    weight: 3
+    region: content
+    settings: {  }
+    third_party_settings: {  }
+  field_dropzonejs_image:
+    weight: 1
+    settings:
+      entity_browser: dropzonejs_eb_test
+      field_widget_display: label
+      open: true
+      selection_mode: selection_append
+      field_widget_edit: false
+      field_widget_remove: false
+      field_widget_replace: false
+      field_widget_display_settings: {  }
+    third_party_settings: {  }
+    type: entity_browser_entity_reference
+    region: content
+  path:
+    type: path
+    weight: 6
+    region: content
+    settings: {  }
+    third_party_settings: {  }
+  promote:
+    type: boolean_checkbox
+    settings:
+      display_label: true
+    weight: 4
+    region: content
+    third_party_settings: {  }
+  status:
+    type: boolean_checkbox
+    settings:
+      display_label: true
+    weight: 7
+    region: content
+    third_party_settings: {  }
+  sticky:
+    type: boolean_checkbox
+    settings:
+      display_label: true
+    weight: 5
+    region: content
+    third_party_settings: {  }
+  title:
+    type: string_textfield
+    weight: 0
+    region: content
+    settings:
+      size: 60
+      placeholder: ''
+    third_party_settings: {  }
+  uid:
+    type: entity_reference_autocomplete
+    weight: 2
+    settings:
+      match_operator: CONTAINS
+      size: 60
+      placeholder: ''
+      match_limit: 10
+    region: content
+    third_party_settings: {  }
+hidden: {  }
diff --git a/tests/modules/dropzonejs_test/config/install/core.entity_view_display.media.dropzonejs_media.default.yml b/tests/modules/dropzonejs_test/config/install/core.entity_view_display.media.dropzonejs_media.default.yml
new file mode 100644
index 0000000..f0e3d54
--- /dev/null
+++ b/tests/modules/dropzonejs_test/config/install/core.entity_view_display.media.dropzonejs_media.default.yml
@@ -0,0 +1,28 @@
+langcode: en
+status: true
+dependencies:
+  config:
+    - field.field.media.dropzonejs_media.field_media_image
+    - image.style.large
+    - media.type.dropzonejs_media
+  module:
+    - image
+id: media.dropzonejs_media.default
+targetEntityType: media
+bundle: dropzonejs_media
+mode: default
+content:
+  field_media_image:
+    label: visually_hidden
+    weight: 0
+    settings:
+      image_style: large
+      image_link: ''
+    third_party_settings: {  }
+    type: image
+    region: content
+hidden:
+  created: true
+  name: true
+  thumbnail: true
+  uid: true
diff --git a/tests/modules/dropzonejs_test/config/install/core.entity_view_display.node.dropzonejs_test.default.yml b/tests/modules/dropzonejs_test/config/install/core.entity_view_display.node.dropzonejs_test.default.yml
new file mode 100644
index 0000000..262458c
--- /dev/null
+++ b/tests/modules/dropzonejs_test/config/install/core.entity_view_display.node.dropzonejs_test.default.yml
@@ -0,0 +1,28 @@
+langcode: en
+status: true
+dependencies:
+  config:
+    - field.field.node.dropzonejs_test.field_dropzonejs_image
+    - node.type.dropzonejs_test
+  module:
+    - user
+id: node.dropzonejs_test.default
+targetEntityType: node
+bundle: dropzonejs_test
+mode: default
+content:
+  field_dropzonejs_image:
+    type: entity_reference_entity_view
+    weight: 101
+    label: above
+    settings:
+      view_mode: default
+      link: false
+    third_party_settings: {  }
+    region: content
+  links:
+    weight: 100
+    settings: {  }
+    third_party_settings: {  }
+    region: content
+hidden: {  }
diff --git a/tests/modules/dropzonejs_test/config/install/entity_browser.browser.dropzonejs_eb_test.yml b/tests/modules/dropzonejs_test/config/install/entity_browser.browser.dropzonejs_eb_test.yml
new file mode 100644
index 0000000..9b98217
--- /dev/null
+++ b/tests/modules/dropzonejs_test/config/install/entity_browser.browser.dropzonejs_eb_test.yml
@@ -0,0 +1,40 @@
+langcode: en
+status: true
+dependencies:
+  config:
+    - media.type.dropzonejs_media
+  module:
+    - dropzonejs_eb_widget
+    - media
+name: dropzonejs_eb_test
+label: 'Dropzonejs eb test'
+display: iframe
+display_configuration:
+  width: '650'
+  height: '500'
+  link_text: 'Select entities'
+  auto_open: false
+selection_display: no_display
+selection_display_configuration: {  }
+widget_selector: single
+widget_selector_configuration: {  }
+widgets:
+  44b1e6ea-637d-4dd6-b79e-edeefc546c1c:
+    settings:
+      media_type: dropzonejs_media
+      upload_location: 'public://[date:custom:Y]-[date:custom:m]'
+      dropzone_description: 'Drop files here to upload them'
+      max_filesize: 2M
+      extensions: 'jpg jpeg gif png txt doc xls pdf ppt pps odt ods odp'
+      clientside_resize: false
+      resize_width: null
+      resize_height: null
+      resize_quality: !!float 1
+      resize_method: contain
+      thumbnail_method: contain
+      submit_text: 'Select entities'
+      auto_select: false
+    uuid: 44b1e6ea-637d-4dd6-b79e-edeefc546c1c
+    weight: 2
+    label: 'Dropzonejs media'
+    id: dropzonejs_media_entity
diff --git a/tests/modules/dropzonejs_test/config/install/field.field.media.dropzonejs_media.field_media_image.yml b/tests/modules/dropzonejs_test/config/install/field.field.media.dropzonejs_media.field_media_image.yml
new file mode 100644
index 0000000..5ba3280
--- /dev/null
+++ b/tests/modules/dropzonejs_test/config/install/field.field.media.dropzonejs_media.field_media_image.yml
@@ -0,0 +1,37 @@
+langcode: en
+status: true
+dependencies:
+  config:
+    - field.storage.media.field_media_image
+    - media.type.dropzonejs_media
+  module:
+    - image
+id: media.dropzonejs_media.field_media_image
+field_name: field_media_image
+entity_type: media
+bundle: dropzonejs_media
+label: Image
+description: ''
+required: true
+translatable: true
+default_value: {  }
+default_value_callback: ''
+settings:
+  file_extensions: 'png gif jpg jpeg'
+  alt_field: true
+  alt_field_required: true
+  title_field: false
+  title_field_required: false
+  max_resolution: ''
+  min_resolution: ''
+  default_image:
+    uuid: null
+    alt: ''
+    title: ''
+    width: null
+    height: null
+  file_directory: '[date:custom:Y]-[date:custom:m]'
+  max_filesize: ''
+  handler: 'default:file'
+  handler_settings: {  }
+field_type: image
diff --git a/tests/modules/dropzonejs_test/config/install/field.field.node.dropzonejs_test.field_dropzonejs_image.yml b/tests/modules/dropzonejs_test/config/install/field.field.node.dropzonejs_test.field_dropzonejs_image.yml
new file mode 100644
index 0000000..dc2e5f3
--- /dev/null
+++ b/tests/modules/dropzonejs_test/config/install/field.field.node.dropzonejs_test.field_dropzonejs_image.yml
@@ -0,0 +1,27 @@
+langcode: en
+status: true
+dependencies:
+  config:
+    - field.storage.node.field_dropzonejs_image
+    - media.type.dropzonejs_media
+    - node.type.dropzonejs_test
+id: node.dropzonejs_test.field_dropzonejs_image
+field_name: field_dropzonejs_image
+entity_type: node
+bundle: dropzonejs_test
+label: Image
+description: ''
+required: false
+translatable: false
+default_value: {  }
+default_value_callback: ''
+settings:
+  handler: 'default:media'
+  handler_settings:
+    target_bundles:
+      dropzonejs_media: dropzonejs_media
+    sort:
+      field: _none
+    auto_create: false
+    auto_create_bundle: ''
+field_type: entity_reference
diff --git a/tests/modules/dropzonejs_test/config/install/field.storage.media.field_media_image.yml b/tests/modules/dropzonejs_test/config/install/field.storage.media.field_media_image.yml
new file mode 100644
index 0000000..12387fd
--- /dev/null
+++ b/tests/modules/dropzonejs_test/config/install/field.storage.media.field_media_image.yml
@@ -0,0 +1,34 @@
+langcode: en
+status: true
+dependencies:
+  enforced:
+    module:
+      - media
+  module:
+    - file
+    - image
+    - media
+_core:
+  default_config_hash: 7ZBrcl87ZXaw42v952wwcw_9cQgTBq5_5tgyUkE-VV0
+id: media.field_media_image
+field_name: field_media_image
+entity_type: media
+type: image
+settings:
+  default_image:
+    uuid: null
+    alt: ''
+    title: ''
+    width: null
+    height: null
+  target_type: file
+  display_field: false
+  display_default: false
+  uri_scheme: public
+module: image
+locked: false
+cardinality: 1
+translatable: true
+indexes: {  }
+persist_with_no_fields: false
+custom_storage: false
diff --git a/tests/modules/dropzonejs_test/config/install/field.storage.node.field_dropzonejs_image.yml b/tests/modules/dropzonejs_test/config/install/field.storage.node.field_dropzonejs_image.yml
new file mode 100644
index 0000000..3844f35
--- /dev/null
+++ b/tests/modules/dropzonejs_test/config/install/field.storage.node.field_dropzonejs_image.yml
@@ -0,0 +1,19 @@
+langcode: en
+status: true
+dependencies:
+  module:
+    - media
+    - node
+id: node.field_dropzonejs_image
+field_name: field_dropzonejs_image
+entity_type: node
+type: entity_reference
+settings:
+  target_type: media
+module: core
+locked: false
+cardinality: 1
+translatable: true
+indexes: {  }
+persist_with_no_fields: false
+custom_storage: false
diff --git a/tests/modules/dropzonejs_test/config/install/media.type.dropzonejs_media.yml b/tests/modules/dropzonejs_test/config/install/media.type.dropzonejs_media.yml
new file mode 100644
index 0000000..101afe3
--- /dev/null
+++ b/tests/modules/dropzonejs_test/config/install/media.type.dropzonejs_media.yml
@@ -0,0 +1,12 @@
+langcode: en
+status: true
+dependencies: {  }
+id: dropzonejs_media
+label: 'Dropzonejs media'
+description: ''
+source: image
+queue_thumbnail_downloads: false
+new_revision: false
+source_configuration:
+  source_field: field_media_image
+field_map: {  }
diff --git a/tests/modules/dropzonejs_test/config/install/node.type.dropzonejs_test.yml b/tests/modules/dropzonejs_test/config/install/node.type.dropzonejs_test.yml
new file mode 100644
index 0000000..fc9cbb6
--- /dev/null
+++ b/tests/modules/dropzonejs_test/config/install/node.type.dropzonejs_test.yml
@@ -0,0 +1,16 @@
+langcode: en
+status: true
+dependencies:
+  module:
+    - menu_ui
+third_party_settings:
+  menu_ui:
+    available_menus: {  }
+    parent: ''
+name: 'Dropzonejs test'
+type: dropzonejs_test
+description: ''
+help: ''
+new_revision: false
+preview_mode: 0
+display_submitted: false
diff --git a/tests/modules/dropzonejs_test/dropzonejs_test.info.yml b/tests/modules/dropzonejs_test/dropzonejs_test.info.yml
index 42c625e..c4100ef 100644
--- a/tests/modules/dropzonejs_test/dropzonejs_test.info.yml
+++ b/tests/modules/dropzonejs_test/dropzonejs_test.info.yml
@@ -5,4 +5,6 @@ package: Testing
 version: VERSION
 core: 8.x
 dependencies:
+ - drupal:media
  - dropzonejs:dropzonejs
+ - dropzonejs:dropzonejs_eb_widget
diff --git a/tests/src/FunctionalJavascript/DropzoneJsEbWidgetTest.php b/tests/src/FunctionalJavascript/DropzoneJsEbWidgetTest.php
new file mode 100644
index 0000000..8437754
--- /dev/null
+++ b/tests/src/FunctionalJavascript/DropzoneJsEbWidgetTest.php
@@ -0,0 +1,68 @@
+<?php
+
+namespace Drupal\Tests\dropzonejs\FunctionalJavascript;
+
+use Drupal\Tests\field_ui\Traits\FieldUiTestTrait;
+
+/**
+ * Test dropzonejs EB Widget.
+ *
+ * @group dropzonejs
+ */
+class DropzoneJsEbWidgetTest extends DropzoneJsWebDriverTestBase {
+
+  use FieldUiTestTrait;
+
+  /**
+   * Modules to enable.
+   *
+   * @var array
+   */
+  public static $modules = [
+    'node',
+    'media',
+    'menu_ui',
+    'path',
+    'dropzonejs_test',
+  ];
+
+  /**
+   * Permissions for user that will be logged-in for test.
+   *
+   * @var array
+   */
+  protected static $userPermissions = [
+    'access dropzonejs_eb_test entity browser pages',
+    'create dropzonejs_test content',
+    'dropzone upload files',
+    'access content',
+  ];
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function setUp() {
+    parent::setUp();
+    $account = $this->drupalCreateUser(static::$userPermissions);
+    $this->drupalLogin($account);
+  }
+
+  /**
+   * Tests the add widget with iframe form.
+   */
+  public function testUploadFile() {
+    $this->drupalGet('node/add/dropzonejs_test');
+    $this->getSession()->getPage()->clickLink('Select entities');
+    $this->waitForAjaxToFinish();
+    $this->getSession()->switchToIFrame('entity_browser_iframe_dropzonejs_eb_test');
+    $this->dropFile();
+    $this->waitForAjaxToFinish();
+    $this->getSession()->getPage()->pressButton('Select entities');
+
+    // Switch back to the main page.
+    $this->getSession()->switchToIFrame();
+    $this->waitForAjaxToFinish();
+    $this->assertSession()
+      ->elementsCount('xpath', '//div[contains(@class, "entities-list")]/*', 1);
+  }
+}
diff --git a/tests/src/FunctionalJavascript/DropzoneJsWebDriverTestBase.php b/tests/src/FunctionalJavascript/DropzoneJsWebDriverTestBase.php
new file mode 100644
index 0000000..cb837a5
--- /dev/null
+++ b/tests/src/FunctionalJavascript/DropzoneJsWebDriverTestBase.php
@@ -0,0 +1,115 @@
+<?php
+
+namespace Drupal\Tests\dropzonejs\FunctionalJavascript;
+
+use Drupal\file\Entity\File;
+use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
+
+/**
+ * Base class for DropzoneJS Web driver functional test base.
+ *
+ * @package Drupal\Tests\entity_browser\FunctionalJavascript
+ */
+abstract class DropzoneJsWebDriverTestBase extends WebDriverTestBase {
+
+  /**
+   * Simple grey rectangle image data.
+   *
+   * @var string
+   */
+  var $fileData = "iVBORw0KGgoAAAANSUhEUgAAAGQAAABkCAAAAABVicqIAAAACXBIWXMAAAsTAAALEwEAmpwYAAAA
+B3RJTUUH3gIYBAEMHCkuWQAAAB1pVFh0Q29tbWVudAAAAAAAQ3JlYXRlZCB3aXRoIEdJTVBkLmUH
+AAAAQElEQVRo3u3NQQ0AAAgEoNN29i9kCh9uUICa3OtIJBKJRCKRSCQSiUQikUgkEolEIpFIJBKJ
+RCKRSCQSiUTyPlnSFQER9VCp/AAAAABJRU5ErkJggg==";
+
+  /**
+   * Modules to enable.
+   *
+   * @var array
+   */
+  public static $modules = [
+    'dropzonejs_test',
+    'views',
+    'block',
+    'node',
+    'file',
+    'image',
+    'field_ui',
+    'views_ui',
+    'system',
+  ];
+
+  /**
+   * Creates an file.
+   *
+   * @param string $name
+   *   The name of the image.
+   * @param string $extension
+   *   File extension.
+   *
+   * @return \Drupal\file\FileInterface
+   *   Returns an image.
+   * @throws \Drupal\Core\Entity\EntityStorageException
+   */
+  protected function getFile($name, $extension = 'jpg') {
+    file_put_contents('public://' . $name . '.' . $extension, $this->fileData);
+
+    $file = File::create([
+      'filename' => $name . '.' . $extension,
+      'uri' => 'public://' . $name . '.' . $extension,
+    ]);
+    $file->setPermanent();
+    $file->save();
+
+    return $file;
+  }
+
+  /**
+   * Waits for jQuery to become ready and animations to complete.
+   */
+  protected function waitForAjaxToFinish() {
+    $this->assertSession()->assertWaitOnAjaxRequest();
+  }
+
+  /**
+   * Drag file in Dropzone with defined offset position.
+   *
+   * @throws \Behat\Mink\Exception\ElementNotFoundException
+   * @throws \Drupal\Core\Entity\EntityStorageException
+   */
+  protected function dropFile() {
+    // Sometimes we are not yet switched to the iframe. Stop the horses a bit
+    // here.
+    sleep(1);
+    $file = $this->getFile('notalama');
+
+    $input = <<<JS
+      jQuery('.form-type-dropzonejs').append('<input type=\'file\' name=\'fakefile\'>');
+JS;
+    $this->getSession()->evaluateScript($input);
+
+    $full_path = \Drupal::service('file_system')->realPath($file->getFileUri());
+    if (is_file($full_path)) {
+      $path = $full_path;
+    }
+
+    if (!isset($path) || !file_exists($path)) {
+      throw new \RuntimeException("File $path does not exist");
+    }
+
+    $this->getSession()->getPage()->attachFileToField('fakefile', $path);
+
+    $drop = <<<JS
+    (function(jQuery) {
+      var fakeFileInputs = jQuery('input[name=fakefile]' );
+      var fileList = fakeFileInputs.map(function (i, el) { return el.files[0] });
+      var e = jQuery.Event('drop', { dataTransfer : { files : fileList } });
+      jQuery('.dropzone' )[0].dropzone.listeners[0].events.drop(e);
+      fakeFileInputs.map(function (i, el) { return el.remove(); });
+    })(jQuery);
+JS;
+
+    $this->getSession()->evaluateScript($drop);
+  }
+
+}