diff --git a/tests/modules/iiif_media_source_test/config/install/core.entity_form_display.node.iiif_test.default.yml b/tests/modules/iiif_media_source_test/config/install/core.entity_form_display.node.iiif_test.default.yml
new file mode 100644
index 0000000..c574a41
--- /dev/null
+++ b/tests/modules/iiif_media_source_test/config/install/core.entity_form_display.node.iiif_test.default.yml
@@ -0,0 +1,131 @@
+langcode: en
+status: true
+dependencies:
+  config:
+    - field.field.node.iiif_test.field_iiif_test_1
+    - field.field.node.iiif_test.field_iiif_test_2
+    - field.field.node.iiif_test.field_iiif_test_3
+    - field.field.node.iiif_test.field_iiif_test_4
+    - field.field.node.iiif_test.field_iiif_test_5
+    - node.type.iiif_test
+  module:
+    - iiif_media_source
+    - iiif_media_source_test
+    - path
+  enforced:
+    module:
+    - iiif_media_source_test
+id: node.iiif_test.default
+targetEntityType: node
+bundle: iiif_test
+mode: default
+content:
+  created:
+    type: datetime_timestamp
+    weight: 3
+    region: content
+    settings: {  }
+    third_party_settings: {  }
+  field_iiif_test_1:
+    type: iiif_id_widget
+    weight: 10
+    region: content
+    settings:
+      size: 60
+      placeholder: ''
+    third_party_settings: {  }
+  field_iiif_test_2:
+    type: iiif_image_widget
+    weight: 11
+    region: content
+    settings:
+      size: 60
+      placeholder: ''
+    third_party_settings: {  }
+  field_iiif_test_3:
+    type: iiif_image_widget
+    weight: 12
+    region: content
+    settings:
+      size: 60
+      placeholder: ''
+    third_party_settings: {  }
+  field_iiif_test_4:
+    type: iiif_image_widget
+    weight: 13
+    region: content
+    settings:
+      size: 60
+      placeholder: ''
+    third_party_settings: {  }
+  field_iiif_test_5:
+    type: iiif_image_widget
+    weight: 14
+    region: content
+    settings:
+      size: 60
+      placeholder: ''
+    third_party_settings: {  }
+  langcode:
+    type: language_select
+    weight: 1
+    region: content
+    settings:
+      include_locked: true
+    third_party_settings: {  }
+  path:
+    type: path
+    weight: 7
+    region: content
+    settings: {  }
+    third_party_settings: {  }
+  promote:
+    type: boolean_checkbox
+    weight: 5
+    region: content
+    settings:
+      display_label: true
+    third_party_settings: {  }
+  simple_sitemap:
+    weight: 4
+    region: content
+    settings: {  }
+    third_party_settings: {  }
+  status:
+    type: boolean_checkbox
+    weight: 9
+    region: content
+    settings:
+      display_label: true
+    third_party_settings: {  }
+  sticky:
+    type: boolean_checkbox
+    weight: 6
+    region: content
+    settings:
+      display_label: true
+    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
+    region: content
+    settings:
+      match_operator: CONTAINS
+      match_limit: 10
+      size: 60
+      placeholder: ''
+    third_party_settings: {  }
+  url_redirects:
+    weight: 8
+    region: content
+    settings: {  }
+    third_party_settings: {  }
+hidden: {  }
diff --git a/tests/modules/iiif_media_source_test/config/install/core.entity_view_display.node.iiif_test.default.yml b/tests/modules/iiif_media_source_test/config/install/core.entity_view_display.node.iiif_test.default.yml
new file mode 100644
index 0000000..f7dfce7
--- /dev/null
+++ b/tests/modules/iiif_media_source_test/config/install/core.entity_view_display.node.iiif_test.default.yml
@@ -0,0 +1,117 @@
+langcode: en
+status: true
+dependencies:
+  config:
+    - field.field.node.iiif_test.field_iiif_test_1
+    - field.field.node.iiif_test.field_iiif_test_2
+    - field.field.node.iiif_test.field_iiif_test_3
+    - field.field.node.iiif_test.field_iiif_test_4
+    - field.field.node.iiif_test.field_iiif_test_5
+    - node.type.iiif_test
+  module:
+    - iiif_media_source
+    - iiif_media_source_test
+    - user
+  enforced:
+    module:
+    - iiif_media_source_test
+id: node.iiif_test.default
+targetEntityType: node
+bundle: iiif_test
+mode: default
+content:
+  field_iiif_test_1:
+    type: iiif_id_formatter
+    label: above
+    settings:
+      link_to_entity: false
+    third_party_settings: {  }
+    weight: 0
+    region: content
+  field_iiif_test_2:
+    type: iiif_image_formatter
+    label: above
+    settings:
+      region: full
+      region_x: ''
+      region_y: ''
+      region_w: ''
+      region_h: ''
+      size: full
+      size_w: ''
+      size_h: ''
+      rotation: 0
+      quality: default
+      format: png
+      image_loading:
+        attribute: lazy
+      link_to_entity: false
+    third_party_settings: {  }
+    weight: 1
+    region: content
+  field_iiif_test_3:
+    type: iiif_image_formatter
+    label: above
+    settings:
+      region: full
+      region_x: ''
+      region_y: ''
+      region_w: ''
+      region_h: ''
+      size: 'w,'
+      size_w: '600'
+      size_h: ''
+      rotation: 0
+      quality: default
+      format: png
+      image_loading:
+        attribute: eager
+      link_to_entity: false
+    third_party_settings: {  }
+    weight: 2
+    region: content
+  field_iiif_test_4:
+    type: iiif_image_formatter
+    label: above
+    settings:
+      link_to_entity: false
+      region: full
+      region_x: ''
+      region_y: ''
+      region_w: ''
+      region_h: ''
+      size: max
+      size_w: ''
+      size_h: ''
+      rotation: 0
+      quality: default
+      format: png
+      image_loading:
+        attribute: lazy
+    third_party_settings: {  }
+    weight: 3
+    region: content
+  field_iiif_test_5:
+    type: iiif_image_formatter
+    label: above
+    settings:
+      link_to_entity: false
+      region: full
+      region_x: ''
+      region_y: ''
+      region_w: ''
+      region_h: ''
+      size: max
+      size_w: ''
+      size_h: ''
+      rotation: 0
+      quality: default
+      format: png
+      image_loading:
+        attribute: lazy
+    third_party_settings: {  }
+    weight: 4
+    region: content
+hidden:
+  langcode: true
+  links: true
diff --git a/tests/modules/iiif_media_source_test/config/install/field.field.node.iiif_test.field_iiif_test_1.yml b/tests/modules/iiif_media_source_test/config/install/field.field.node.iiif_test.field_iiif_test_1.yml
new file mode 100644
index 0000000..7c32370
--- /dev/null
+++ b/tests/modules/iiif_media_source_test/config/install/field.field.node.iiif_test.field_iiif_test_1.yml
@@ -0,0 +1,27 @@
+langcode: en
+status: true
+dependencies:
+  config:
+    - field.storage.node.field_iiif_test_1
+    - node.type.iiif_test
+  module:
+    - iiif_media_source
+    - iiif_media_source_test
+  enforced:
+    module:
+    - iiif_media_source_test
+id: node.iiif_test.field_iiif_test_1
+field_name: field_iiif_test_1
+entity_type: node
+bundle: iiif_test
+label: 'IIIF Test 1'
+description: ''
+required: false
+translatable: false
+default_value: {  }
+default_value_callback: ''
+settings:
+  server: 'https://media.nga.gov'
+  prefix: iiif
+  img_api_version: '2'
+field_type: iiif_id
diff --git a/tests/modules/iiif_media_source_test/config/install/field.field.node.iiif_test.field_iiif_test_2.yml b/tests/modules/iiif_media_source_test/config/install/field.field.node.iiif_test.field_iiif_test_2.yml
new file mode 100644
index 0000000..44d1ae2
--- /dev/null
+++ b/tests/modules/iiif_media_source_test/config/install/field.field.node.iiif_test.field_iiif_test_2.yml
@@ -0,0 +1,27 @@
+langcode: en
+status: true
+dependencies:
+  config:
+    - field.storage.node.field_iiif_test_2
+    - node.type.iiif_test
+  module:
+    - iiif_media_source
+    - iiif_media_source_test
+  enforced:
+    module:
+    - iiif_media_source_test
+id: node.iiif_test.field_iiif_test_2
+field_name: field_iiif_test_2
+entity_type: node
+bundle: iiif_test
+label: 'IIIF Test 2'
+description: ''
+required: false
+translatable: false
+default_value: {  }
+default_value_callback: ''
+settings:
+  server: 'https://media.nga.gov'
+  prefix: iiif
+  img_api_version: '2'
+field_type: iiif_id
diff --git a/tests/modules/iiif_media_source_test/config/install/field.field.node.iiif_test.field_iiif_test_3.yml b/tests/modules/iiif_media_source_test/config/install/field.field.node.iiif_test.field_iiif_test_3.yml
new file mode 100644
index 0000000..2c43525
--- /dev/null
+++ b/tests/modules/iiif_media_source_test/config/install/field.field.node.iiif_test.field_iiif_test_3.yml
@@ -0,0 +1,27 @@
+langcode: en
+status: true
+dependencies:
+  config:
+    - field.storage.node.field_iiif_test_3
+    - node.type.iiif_test
+  module:
+    - iiif_media_source
+    - iiif_media_source_test
+  enforced:
+    module:
+    - iiif_media_source_test
+id: node.iiif_test.field_iiif_test_3
+field_name: field_iiif_test_3
+entity_type: node
+bundle: iiif_test
+label: 'IIIF Test 3'
+description: ''
+required: false
+translatable: false
+default_value: {  }
+default_value_callback: ''
+settings:
+  server: 'https://media.nga.gov'
+  prefix: iiif
+  img_api_version: '2'
+field_type: iiif_id
diff --git a/tests/modules/iiif_media_source_test/config/install/field.field.node.iiif_test.field_iiif_test_4.yml b/tests/modules/iiif_media_source_test/config/install/field.field.node.iiif_test.field_iiif_test_4.yml
new file mode 100644
index 0000000..806dc33
--- /dev/null
+++ b/tests/modules/iiif_media_source_test/config/install/field.field.node.iiif_test.field_iiif_test_4.yml
@@ -0,0 +1,27 @@
+langcode: en
+status: true
+dependencies:
+  config:
+    - field.storage.node.field_iiif_test_4
+    - node.type.iiif_test
+  module:
+    - iiif_media_source
+    - iiif_media_source_test
+  enforced:
+    module:
+    - iiif_media_source_test
+id: node.iiif_test.field_iiif_test_4
+field_name: field_iiif_test_4
+entity_type: node
+bundle: iiif_test
+label: 'IIIF Test 4'
+description: ''
+required: false
+translatable: false
+default_value: {  }
+default_value_callback: ''
+settings:
+  server: 'https://media.nga.gov'
+  prefix: iiif
+  img_api_version: '2'
+field_type: iiif_id
diff --git a/tests/modules/iiif_media_source_test/config/install/field.field.node.iiif_test.field_iiif_test_5.yml b/tests/modules/iiif_media_source_test/config/install/field.field.node.iiif_test.field_iiif_test_5.yml
new file mode 100644
index 0000000..4554f24
--- /dev/null
+++ b/tests/modules/iiif_media_source_test/config/install/field.field.node.iiif_test.field_iiif_test_5.yml
@@ -0,0 +1,27 @@
+langcode: en
+status: true
+dependencies:
+  config:
+    - field.storage.node.field_iiif_test_5
+    - node.type.iiif_test
+  module:
+    - iiif_media_source
+    - iiif_media_source_test
+  enforced:
+    module:
+    - iiif_media_source_test
+id: node.iiif_test.field_iiif_test_5
+field_name: field_iiif_test_5
+entity_type: node
+bundle: iiif_test
+label: 'IIIF Test 5'
+description: ''
+required: false
+translatable: false
+default_value: {  }
+default_value_callback: ''
+settings:
+  server: 'https://media.nga.gov'
+  prefix: iiif
+  img_api_version: '2'
+field_type: iiif_id
diff --git a/tests/modules/iiif_media_source_test/config/install/field.storage.node.field_iiif_test_1.yml b/tests/modules/iiif_media_source_test/config/install/field.storage.node.field_iiif_test_1.yml
new file mode 100644
index 0000000..8dcab16
--- /dev/null
+++ b/tests/modules/iiif_media_source_test/config/install/field.storage.node.field_iiif_test_1.yml
@@ -0,0 +1,25 @@
+langcode: en
+status: true
+dependencies:
+  module:
+    - iiif_media_source
+    - iiif_media_source_test
+    - node
+  enforced:
+    module:
+    - iiif_media_source_test
+id: node.field_iiif_test_1
+field_name: field_iiif_test_1
+entity_type: node
+type: iiif_id
+settings:
+  max_length: 255
+  is_ascii: false
+  case_sensitive: false
+module: iiif_media_source
+locked: false
+cardinality: 1
+translatable: true
+indexes: {  }
+persist_with_no_fields: false
+custom_storage: false
diff --git a/tests/modules/iiif_media_source_test/config/install/field.storage.node.field_iiif_test_2.yml b/tests/modules/iiif_media_source_test/config/install/field.storage.node.field_iiif_test_2.yml
new file mode 100644
index 0000000..b02b13b
--- /dev/null
+++ b/tests/modules/iiif_media_source_test/config/install/field.storage.node.field_iiif_test_2.yml
@@ -0,0 +1,25 @@
+langcode: en
+status: true
+dependencies:
+  module:
+    - iiif_media_source
+    - iiif_media_source_test
+    - node
+  enforced:
+    module:
+    - iiif_media_source_test
+id: node.field_iiif_test_2
+field_name: field_iiif_test_2
+entity_type: node
+type: iiif_id
+settings:
+  max_length: 255
+  is_ascii: false
+  case_sensitive: false
+module: iiif_media_source
+locked: false
+cardinality: 1
+translatable: true
+indexes: {  }
+persist_with_no_fields: false
+custom_storage: false
diff --git a/tests/modules/iiif_media_source_test/config/install/field.storage.node.field_iiif_test_3.yml b/tests/modules/iiif_media_source_test/config/install/field.storage.node.field_iiif_test_3.yml
new file mode 100644
index 0000000..21d5757
--- /dev/null
+++ b/tests/modules/iiif_media_source_test/config/install/field.storage.node.field_iiif_test_3.yml
@@ -0,0 +1,25 @@
+langcode: en
+status: true
+dependencies:
+  module:
+    - iiif_media_source
+    - iiif_media_source_test
+    - node
+  enforced:
+    module:
+    - iiif_media_source_test
+id: node.field_iiif_test_3
+field_name: field_iiif_test_3
+entity_type: node
+type: iiif_id
+settings:
+  max_length: 255
+  is_ascii: false
+  case_sensitive: false
+module: iiif_media_source
+locked: false
+cardinality: 1
+translatable: true
+indexes: {  }
+persist_with_no_fields: false
+custom_storage: false
diff --git a/tests/modules/iiif_media_source_test/config/install/field.storage.node.field_iiif_test_4.yml b/tests/modules/iiif_media_source_test/config/install/field.storage.node.field_iiif_test_4.yml
new file mode 100644
index 0000000..a69e20d
--- /dev/null
+++ b/tests/modules/iiif_media_source_test/config/install/field.storage.node.field_iiif_test_4.yml
@@ -0,0 +1,25 @@
+langcode: en
+status: true
+dependencies:
+  module:
+    - iiif_media_source
+    - iiif_media_source_test
+    - node
+  enforced:
+    module:
+    - iiif_media_source_test
+id: node.field_iiif_test_4
+field_name: field_iiif_test_4
+entity_type: node
+type: iiif_id
+settings:
+  max_length: 255
+  is_ascii: false
+  case_sensitive: false
+module: iiif_media_source
+locked: false
+cardinality: 1
+translatable: true
+indexes: {  }
+persist_with_no_fields: false
+custom_storage: false
diff --git a/tests/modules/iiif_media_source_test/config/install/field.storage.node.field_iiif_test_5.yml b/tests/modules/iiif_media_source_test/config/install/field.storage.node.field_iiif_test_5.yml
new file mode 100644
index 0000000..60b203e
--- /dev/null
+++ b/tests/modules/iiif_media_source_test/config/install/field.storage.node.field_iiif_test_5.yml
@@ -0,0 +1,25 @@
+langcode: en
+status: true
+dependencies:
+  module:
+    - iiif_media_source
+    - iiif_media_source_test
+    - node
+  enforced:
+    module:
+    - iiif_media_source_test
+id: node.field_iiif_test_5
+field_name: field_iiif_test_5
+entity_type: node
+type: iiif_id
+settings:
+  max_length: 255
+  is_ascii: false
+  case_sensitive: false
+module: iiif_media_source
+locked: false
+cardinality: 1
+translatable: true
+indexes: {  }
+persist_with_no_fields: false
+custom_storage: false
diff --git a/tests/modules/iiif_media_source_test/config/install/node.type.iiif_test.yml b/tests/modules/iiif_media_source_test/config/install/node.type.iiif_test.yml
new file mode 100644
index 0000000..b9139ac
--- /dev/null
+++ b/tests/modules/iiif_media_source_test/config/install/node.type.iiif_test.yml
@@ -0,0 +1,14 @@
+langcode: en
+status: true
+dependencies:
+  module:
+  enforced:
+    module:
+    - iiif_media_source_test
+name: IIIF Test
+type: iiif_test
+description: ''
+help: ''
+new_revision: true
+preview_mode: 0
+display_submitted: true
diff --git a/tests/modules/iiif_media_source_test/iiif_media_source_test.info.yml b/tests/modules/iiif_media_source_test/iiif_media_source_test.info.yml
new file mode 100644
index 0000000..60f6cb0
--- /dev/null
+++ b/tests/modules/iiif_media_source_test/iiif_media_source_test.info.yml
@@ -0,0 +1,10 @@
+name: IIIF Media Source TEST
+type: module
+description: 'Required config for testing IIIF Fields'
+core_version_requirement: ^10
+package: Testing
+dependencies:
+  - drupal:node
+  - drupal:path
+  - drupal:user
+  - iiif_media_source:iiif_media_source
diff --git a/tests/src/Functional/FieldFormatterTest.php b/tests/src/Functional/FieldFormatterTest.php
new file mode 100644
index 0000000..680d47e
--- /dev/null
+++ b/tests/src/Functional/FieldFormatterTest.php
@@ -0,0 +1,155 @@
+<?php
+
+/**
+ * Test basic IIIF Field Formatters.
+ *
+ * Example Images:
+ * https://media.nga.gov/iiif/6dc9ca49-ea8c-4314-985a-ba2cfc3965cd/full/full/0/default.jpg
+ * https://media.nga.gov/iiif/3a81bf90-a961-468d-ae12-1d981e11247a/full/full/0/default.jpg
+ * https://media.nga.gov/iiif/7a4bba6e-7c21-42fe-bdd5-7ba7bdeffd16/full/full/0/default.jpg
+ * https://media.nga.gov/iiif/fdfa01c4-7334-4a34-a1fa-64429773e96e/full/full/0/default.jpg
+ * https://media.nga.gov/iiif/ab18bc0e-2b0e-48db-bf7a-d57f24f9c6a3/full/full/0/default.jpg
+ * https://media.nga.gov/iiif/866a1a6c-2e3e-452c-ad91-5b2339e56da2/full/full/0/default.jpg
+ */
+
+namespace Drupal\Tests\iiif_media_source\Functional;
+
+use Drupal\Tests\BrowserTestBase;
+
+/**
+ * Test basic IIIF Field Formatters.
+ *
+ * @group iiif_media_source
+ */
+class FieldFormatterTest extends BrowserTestBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  protected $defaultTheme = 'claro';
+
+  /**
+   * A user with administration rights.
+   *
+   * @var \Drupal\user\UserInterface
+   */
+  protected $adminUser;
+
+  /**
+   * An authenticated user.
+   *
+   * @var \Drupal\user\UserInterface
+   */
+  protected $authenticatedUser;
+
+  protected $testNode;
+
+  /**
+   * {@inheritdoc}
+   */
+  protected static $modules = [
+    'media',
+    // 'node',
+    'user',
+    // 'path',
+    // 'field',
+    // 'text',
+    // 'file',
+    // 'image',
+    'field_ui',
+    // 'iiif_media_source',
+    'iiif_media_source_test',
+  ];
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function setUp(): void {
+    // echo "setUp1\r\n";
+    parent::setUp();
+    // echo "setUp2\r\n";
+
+    $this->adminUser = $this->drupalCreateUser([
+      'access administration pages',
+      'access content',
+    ], "Bob", TRUE);
+    $this->authenticatedUser = $this->drupalCreateUser([
+      'access content',
+      'bypass node access',
+    ]);
+
+    // echo $this->adminUser->id();
+    // echo "\r\n";
+    // echo $this->authenticatedUser->id();
+    // echo "\r\n";
+
+    $this->testNode = $this->drupalCreateNode([
+      'type' => 'iiif_test',
+      'status' => 1,
+      'title' => "Test Node",
+      'field_iiif_test_1' => '6dc9ca49-ea8c-4314-985a-ba2cfc3965cd',
+      'field_iiif_test_2' => '3a81bf90-a961-468d-ae12-1d981e11247a',
+      'field_iiif_test_3' => '7a4bba6e-7c21-42fe-bdd5-7ba7bdeffd16',
+      'field_iiif_test_4' => 'fdfa01c4-7334-4a34-a1fa-64429773e96e',
+      'field_iiif_test_5' => 'ab18bc0e-2b0e-48db-bf7a-d57f24f9c6a3',
+    ]);
+
+    // echo "setUp3\r\n";
+    // echo $this->testNode->id();
+  }
+
+  /**
+   * Test loading attribute for IIIF Image Formatter.
+   */
+  public function testLoadingAttribute() {
+
+    // Goto the Test Node detail page.
+    $session = $this->assertSession();
+    $this->assertTrue(TRUE);
+
+    $this->drupalLogin($this->adminUser);
+
+    $this->drupalGet('admin/structure/types');
+    $session->statusCodeEquals(200);
+
+    // Form Dispaly Settings.
+    $this->drupalGet('admin/structure/types/manage/iiif_test/form-display');
+    $session->statusCodeEquals(200);
+
+    $this->drupalGet('node/' . $this->testNode->id() . "/edit");
+    $session->statusCodeEquals(200);
+
+    $this->drupalGet('node/' . $this->testNode->id());
+    $session->statusCodeEquals(200);
+    $session->responseContains('<div class="field__item">6dc9ca49-ea8c-4314-985a-ba2cfc3965cd</div>');
+    $session->responseContains('https://media.nga.gov/iiif/3a81bf90-a961-468d-ae12-1d981e11247a/full/full/0/default.png');
+    $session->responseContains('<img loading="eager" src="https://media.nga.gov/iiif/7a4bba6e-7c21-42fe-bdd5-7ba7bdeffd16/full/600,/0/default.png" ');
+    $session->responseContains('https://media.nga.gov/iiif/fdfa01c4-7334-4a34-a1fa-64429773e96e/full/max/0/default.png', "img url");
+    $session->responseContains('<img loading="lazy" src="https://media.nga.gov/iiif/fdfa01c4-7334-4a34-a1fa-64429773e96e/full/max/0/default.png" ', "img tag");
+    // $session->responseContains('https://media.nga.gov/iiif/3a81bf90-a961-468d-ae12-1d981e11247a/full/full/0/default.png');
+
+    // View Display Settings.
+    $this->drupalGet('admin/structure/types/manage/iiif_test/display');
+    $session->statusCodeEquals(200);
+
+    // Click Gear, to change field display settings.
+    $this->click('input[name="field_iiif_test_4_settings_edit"]');
+
+    $form_html_id = "entity-view-display-edit-form";
+    $form = $form = $session->elementExists('xpath', "//form[@id='{$form_html_id}']");
+    $field_name = "fields[field_iiif_test_4][settings_edit_form][settings][format]";
+    $field = $session->fieldExists($field_name, $form);
+    $field->setValue("jpg");
+
+    $this->click('input[name="field_iiif_test_4_plugin_settings_update"]');
+    $this->click('input[name="op"][value="Save"]');
+
+
+
+    $this->drupalGet('node/' . $this->testNode->id());
+    $session->statusCodeEquals(200);
+
+    $session->responseContains('<img loading="lazy" src="https://media.nga.gov/iiif/fdfa01c4-7334-4a34-a1fa-64429773e96e/full/full/0/default.jpg" ');
+  }
+
+}
diff --git a/tests/src/Unit/IiifImageTests.php b/tests/src/Unit/IiifImageTest.php
similarity index 98%
rename from tests/src/Unit/IiifImageTests.php
rename to tests/src/Unit/IiifImageTest.php
index 1cfd4e0..1c519fe 100644
--- a/tests/src/Unit/IiifImageTests.php
+++ b/tests/src/Unit/IiifImageTest.php
@@ -8,11 +8,11 @@
 use Drupal\Tests\UnitTestCase;
 
 /**
- * Unit tests for iiif_media_source
+ * Unit tests for iiif_media_source.
  *
  * @group iiif_media_source
  */
-class IiifImageTests extends UnitTestCase {
+class IiifImageTest extends UnitTestCase {
 
   /**
    * Json string of an image source.