diff --git a/src/Bridges/CacheBridgeAbstract.php b/src/Bridges/CacheBridgeAbstract.php
index 8f7e45b..e4c487d 100644
--- a/src/Bridges/CacheBridgeAbstract.php
+++ b/src/Bridges/CacheBridgeAbstract.php
@@ -118,7 +118,7 @@ final public function save(CacheItemInterface $item): bool
             return false;
         }
 
-        $value = serialize($item->get());
+        $value = serialize($item->getRawValue());
         $key = $item->getKey();
         $expires = $item->getExpiration();
 
diff --git a/src/Events.php b/src/Events.php
index df25d6c..e558c5d 100644
--- a/src/Events.php
+++ b/src/Events.php
@@ -29,6 +29,8 @@
 
 /**
  * @api
+ *
+ * @codeCoverageIgnore
  */
 final class Events implements EventsContract
 {
diff --git a/src/Guards/AuthenticationGuard.php b/src/Guards/AuthenticationGuard.php
index 292c847..559e0c7 100644
--- a/src/Guards/AuthenticationGuard.php
+++ b/src/Guards/AuthenticationGuard.php
@@ -280,6 +280,7 @@ public function user(): ?Authenticatable
         /**
          * @var ?Authenticatable $lastResponse
          */
+        // @codeCoverageIgnoreStart
         if (class_exists('\Laravel\Telescope\Telescope')) {
             static $depth = 0;
             static $lastCalled = null;
@@ -304,6 +305,7 @@ public function user(): ?Authenticatable
             ++$depth;
             $lastCalled = time();
         }
+        // @codeCoverageIgnoreEnd
 
         $currentUser = $this->getCredential()?->getUser();
 
diff --git a/src/Guards/GuardAbstract.php b/src/Guards/GuardAbstract.php
index ac3a41d..096373f 100644
--- a/src/Guards/GuardAbstract.php
+++ b/src/Guards/GuardAbstract.php
@@ -217,7 +217,9 @@ final public function processToken(
             Events::dispatch($event = new TokenVerificationFailed($token, $invalidTokenException));
 
             if ($event->throwException) {
+                // @codeCoverageIgnoreStart
                 throw $invalidTokenException;
+                // @codeCoverageIgnoreEnd
             }
 
             return null;
@@ -242,6 +244,9 @@ final public function sdk(
         return $this->sdk->getSdk();
     }
 
+    /**
+     * @codeCoverageIgnore
+     */
     final public function service(): ?InstanceEntityContract
     {
         return $this->sdk;
diff --git a/src/UserProviderAbstract.php b/src/UserProviderAbstract.php
index b88cc11..c2fd21b 100644
--- a/src/UserProviderAbstract.php
+++ b/src/UserProviderAbstract.php
@@ -60,6 +60,8 @@ final public function retrieveByCredentials(array $credentials): ?Authenticatabl
         static $lastResponse = null;
         static $lastCredentials = null;
 
+        // @codeCoverageIgnoreStart
+
         /**
          * @var ?Authenticatable $lastResponse
          * @var array            $lastCredentials
@@ -94,6 +96,8 @@ final public function retrieveByCredentials(array $credentials): ?Authenticatabl
             $lastCredentials = $credentials;
         }
 
+        // @codeCoverageIgnoreEnd
+
         $lastResponse = $this->getRepository()->fromSession($credentials);
 
         $this->withoutRecording(static fn (): bool => Cache::put('auth0_sdk_credential_lookup_' . $hash, $lastResponse, 5));
@@ -222,6 +226,11 @@ protected function setRepositoryName(string $repositoryName): void
         $this->repositoryName = $repositoryName;
     }
 
+    /**
+     * @codeCoverageIgnore
+     *
+     * @param callable $callback
+     */
     protected function withoutRecording(callable $callback): mixed
     {
         if (class_exists(self::TELESCOPE)) {
diff --git a/tests/Unit/Bridges/CacheBridgeTest.php b/tests/Unit/Bridges/CacheBridgeTest.php
index 437de08..5820561 100644
--- a/tests/Unit/Bridges/CacheBridgeTest.php
+++ b/tests/Unit/Bridges/CacheBridgeTest.php
@@ -36,9 +36,7 @@
     expect($cache)
         ->toBeInstanceOf(CacheItemBridge::class)
         ->isHit()->toBeTrue()
-        ->get()->toBeNull()
-        ->set(42)
-        ->get()->toBe(42);
+        ->get()->toEqual(42);
 
     $results = $pool->getItems();
 
@@ -46,12 +44,12 @@
         ->toBeArray()
         ->toHaveCount(0);
 
-    $results = $pool->getItems(['testing' => uniqid()]);
+    $results = $pool->getItems(['testing']);
 
     expect($results['testing'])
         ->toBeInstanceOf(CacheItemBridge::class)
         ->isHit()->toBeTrue()
-        ->get()->not()->toBe(42);
+        ->get()->toEqual(42);
 
     $this->app[\Illuminate\Cache\CacheManager::class]
         ->getStore()
diff --git a/tests/Unit/UserProviderTest.php b/tests/Unit/UserProviderTest.php
index 9b0d909..60d12d1 100644
--- a/tests/Unit/UserProviderTest.php
+++ b/tests/Unit/UserProviderTest.php
@@ -157,3 +157,10 @@
     expect($provider->getRepository())
         ->toBeInstanceOf($repository::class);
 });
+
+test('retrieveByCredentials() returns `null` when an empty array is provided', function (): void {
+    $provider = new UserProvider(['model' => uniqid()]);
+    $repository = new UserRepository();
+
+    expect($provider->retrieveByCredentials([]))->toBeNull();
+});