.../Vocabulary/VocabularyHalJsonAnonTest.php       | 46 ++++++++++++++++++
 .../Vocabulary/VocabularyHalJsonBasicAuthTest.php  | 53 +++++++++++++++++++++
 .../Vocabulary/VocabularyJsonAnonTest.php          | 40 ++++++++++++++++
 .../Vocabulary/VocabularyJsonBasicAuthTest.php     | 53 +++++++++++++++++++++
 .../Vocabulary/VocabularyResourceTestBase.php      | 54 ++++++++++++++++++++++
 5 files changed, 246 insertions(+)

diff --git a/core/modules/hal/tests/src/Functional/EntityResource/Vocabulary/VocabularyHalJsonAnonTest.php b/core/modules/hal/tests/src/Functional/EntityResource/Vocabulary/VocabularyHalJsonAnonTest.php
new file mode 100644
index 0000000..8fb9946
--- /dev/null
+++ b/core/modules/hal/tests/src/Functional/EntityResource/Vocabulary/VocabularyHalJsonAnonTest.php
@@ -0,0 +1,46 @@
+<?php
+
+namespace Drupal\Tests\hal\Functional\EntityResource\Vocabulary;
+
+use Drupal\Tests\rest\Functional\AnonResourceTestTrait;
+use Drupal\Tests\rest\Functional\EntityResource\Vocabulary\VocabularyResourceTestBase;
+
+/**
+ * @group hal
+ */
+class VocabularyHalJsonAnonTest extends VocabularyResourceTestBase {
+
+  use AnonResourceTestTrait;
+
+  /**
+   * {@inheritdoc}
+   */
+  public static $modules = ['hal'];
+
+  /**
+   * {@inheritdoc}
+   */
+  protected static $format = 'hal_json';
+
+  /**
+   * {@inheritdoc}
+   */
+  protected static $mimeType = 'application/hal+json';
+
+  /**
+   * {@inheritdoc}
+   */
+  protected static $expectedErrorMimeType = 'application/json';
+
+  /**
+   * {@inheritdoc}
+   */
+  public function setUpAuthentication() {
+    $this->grantPermissionsToAnonymousRole(['administer taxonomy']);
+  }
+
+  // Disable the GET test coverage due to bug in taxonomy module.
+  // @todo Fix in https://www.drupal.org/node/2805281: remove this override.
+  public function testGet() {}
+
+}
diff --git a/core/modules/hal/tests/src/Functional/EntityResource/Vocabulary/VocabularyHalJsonBasicAuthTest.php b/core/modules/hal/tests/src/Functional/EntityResource/Vocabulary/VocabularyHalJsonBasicAuthTest.php
new file mode 100644
index 0000000..12ef15c
--- /dev/null
+++ b/core/modules/hal/tests/src/Functional/EntityResource/Vocabulary/VocabularyHalJsonBasicAuthTest.php
@@ -0,0 +1,53 @@
+<?php
+
+namespace Drupal\Tests\hal\Functional\EntityResource\Vocabulary;
+
+use Drupal\Tests\hal\Functional\HalJsonBasicAuthWorkaroundFor2805281Trait;
+use Drupal\Tests\rest\Functional\BasicAuthResourceTestTrait;
+use Drupal\Tests\rest\Functional\EntityResource\Vocabulary\VocabularyResourceTestBase;
+
+/**
+ * @group hal
+ */
+class VocabularyHalJsonBasicAuthTest extends VocabularyResourceTestBase {
+
+  use BasicAuthResourceTestTrait;
+
+  /**
+   * {@inheritdoc}
+   */
+  public static $modules = ['hal', 'basic_auth'];
+
+  /**
+   * {@inheritdoc}
+   */
+  protected static $format = 'hal_json';
+
+  /**
+   * {@inheritdoc}
+   */
+  protected static $mimeType = 'application/hal+json';
+
+  /**
+   * {@inheritdoc}
+   */
+  protected static $expectedErrorMimeType = 'application/json';
+
+  /**
+   * {@inheritdoc}
+   */
+  protected static $auth = 'basic_auth';
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function setUpAuthentication() {
+    $this->account = $this->createUser(['administer taxonomy']);
+  }
+
+  // @todo Fix in https://www.drupal.org/node/2805281: remove this trait usage.
+  use HalJsonBasicAuthWorkaroundFor2805281Trait {
+    HalJsonBasicAuthWorkaroundFor2805281Trait::verifyResponseWhenMissingAuthentication insteadof BasicAuthResourceTestTrait;
+  }
+
+}
diff --git a/core/modules/rest/tests/src/Functional/EntityResource/Vocabulary/VocabularyJsonAnonTest.php b/core/modules/rest/tests/src/Functional/EntityResource/Vocabulary/VocabularyJsonAnonTest.php
new file mode 100644
index 0000000..7256e81
--- /dev/null
+++ b/core/modules/rest/tests/src/Functional/EntityResource/Vocabulary/VocabularyJsonAnonTest.php
@@ -0,0 +1,40 @@
+<?php
+
+namespace Drupal\Tests\rest\Functional\EntityResource\Vocabulary;
+
+use Drupal\Tests\rest\Functional\AnonResourceTestTrait;
+
+/**
+ * @group rest
+ */
+class VocabularyJsonAnonTest extends VocabularyResourceTestBase {
+
+  use AnonResourceTestTrait;
+
+  /**
+   * {@inheritdoc}
+   */
+  protected static $format = 'json';
+
+  /**
+   * {@inheritdoc}
+   */
+  protected static $mimeType = 'application/json';
+
+  /**
+   * {@inheritdoc}
+   */
+  protected static $expectedErrorMimeType = 'application/json';
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function setUpAuthentication() {
+    $this->grantPermissionsToAnonymousRole(['administer taxonomy']);
+  }
+
+  // Disable the GET test coverage due to bug in taxonomy module.
+  // @todo Fix in https://www.drupal.org/node/2805281: remove this override.
+  public function testGet() {}
+
+}
diff --git a/core/modules/rest/tests/src/Functional/EntityResource/Vocabulary/VocabularyJsonBasicAuthTest.php b/core/modules/rest/tests/src/Functional/EntityResource/Vocabulary/VocabularyJsonBasicAuthTest.php
new file mode 100644
index 0000000..9308d02
--- /dev/null
+++ b/core/modules/rest/tests/src/Functional/EntityResource/Vocabulary/VocabularyJsonBasicAuthTest.php
@@ -0,0 +1,53 @@
+<?php
+
+namespace Drupal\Tests\rest\Functional\EntityResource\Vocabulary;
+
+use Drupal\Tests\rest\Functional\BasicAuthResourceTestTrait;
+use Drupal\Tests\hal\Functional\EntityResource\HalEntityNormalizationTrait;
+use Drupal\Tests\rest\Functional\JsonBasicAuthWorkaroundFor2805281Trait;
+
+/**
+ * @group rest
+ */
+class VocabularyJsonBasicAuthTest extends VocabularyResourceTestBase {
+
+  use BasicAuthResourceTestTrait;
+
+  /**
+   * {@inheritdoc}
+   */
+  public static $modules = ['basic_auth'];
+
+  /**
+   * {@inheritdoc}
+   */
+  protected static $format = 'json';
+
+  /**
+   * {@inheritdoc}
+   */
+  protected static $mimeType = 'application/json';
+
+  /**
+   * {@inheritdoc}
+   */
+  protected static $expectedErrorMimeType = 'application/json';
+
+  /**
+   * {@inheritdoc}
+   */
+  protected static $auth = 'basic_auth';
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function setUpAuthentication() {
+    $this->account = $this->createUser(['administer taxonomy']);
+  }
+
+  // @todo Fix in https://www.drupal.org/node/2805281: remove this trait usage.
+  use JsonBasicAuthWorkaroundFor2805281Trait {
+    JsonBasicAuthWorkaroundFor2805281Trait::verifyResponseWhenMissingAuthentication insteadof BasicAuthResourceTestTrait;
+  }
+
+}
diff --git a/core/modules/rest/tests/src/Functional/EntityResource/Vocabulary/VocabularyResourceTestBase.php b/core/modules/rest/tests/src/Functional/EntityResource/Vocabulary/VocabularyResourceTestBase.php
new file mode 100644
index 0000000..8ec5fec
--- /dev/null
+++ b/core/modules/rest/tests/src/Functional/EntityResource/Vocabulary/VocabularyResourceTestBase.php
@@ -0,0 +1,54 @@
+<?php
+
+namespace Drupal\Tests\rest\Functional\EntityResource\Vocabulary;
+
+use Drupal\taxonomy\Entity\Vocabulary;
+use Drupal\Tests\rest\Functional\EntityResource\EntityResourceTestBase;
+use Drupal\user\Entity\Role;
+use Drupal\user\Entity\User;
+use Drupal\user\RoleInterface;
+
+abstract class VocabularyResourceTestBase extends EntityResourceTestBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  public static $modules = ['taxonomy'];
+
+  /**
+   * {@inheritdoc}
+   */
+  protected static $entityType = 'taxonomy_vocabulary';
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function createEntity() {
+    $vocabulary = Vocabulary::create([
+      'name' => 'Llama',
+      'vid' => 'llama',
+    ]);
+    $vocabulary->save();
+
+    return $vocabulary;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function getExpectedNormalizedEntity() {
+    assert('$this->entity instanceof \Drupal\Core\Entity\EntityInterface', 'Entity must already have been created.');
+    return [
+      'uuid' => $this->entity->uuid(),
+      'vid' => 'llama',
+      'langcode' => 'en',
+      'status' => TRUE,
+      'dependencies' => [],
+      'name' => 'Llama',
+      'description' => NULL,
+      'hierarchy' => 0,
+      'weight' => 0,
+    ];
+  }
+
+}