diff --git a/src/Logger/Log.php b/src/Logger/Log.php
index 46f6abe..ca73045 100644
--- a/src/Logger/Log.php
+++ b/src/Logger/Log.php
@@ -30,27 +30,27 @@ class Log
     /**
      * @var string (required, for example 'Log::TYPE_INFO')
      */
-    protected string $type;
+    protected string $type = '';
 
     /**
      * @var string (required)
      */
-    protected string $message;
+    protected string $message = '';
 
     /**
      * @var string (required)
      */
-    protected string $version;
+    protected string $version = '';
 
     /**
      * @var string (required)
      */
-    protected string $environment;
+    protected string $environment = '';
 
     /**
      * @var string (required)
      */
-    protected string $action;
+    protected string $action = '';
 
     /**
      * @var array<string, string> (optional)
diff --git a/tests/unit/LoggerTest.php b/tests/unit/LoggerTest.php
new file mode 100644
index 0000000..53e2820
--- /dev/null
+++ b/tests/unit/LoggerTest.php
@@ -0,0 +1,114 @@
+<?php
+
+namespace Utopia\Tests\Unit;
+
+use Exception;
+use PHPUnit\Framework\TestCase;
+use Utopia\Logger\Adapter;
+use Utopia\Logger\Log;
+use Utopia\Logger\Logger;
+
+class LoggerTest extends TestCase
+{
+    protected function getAdapter(): Adapter
+    {
+        return new class extends Adapter
+        {
+            public static function getName(): string
+            {
+                return 'mock';
+            }
+
+            public function push(Log $log): int
+            {
+                return 200;
+            }
+
+            public function getSupportedTypes(): array
+            {
+                return [Log::TYPE_DEBUG, Log::TYPE_ERROR, Log::TYPE_WARNING, Log::TYPE_INFO, Log::TYPE_VERBOSE];
+            }
+
+            public function getSupportedEnvironments(): array
+            {
+                return [Log::ENVIRONMENT_PRODUCTION, Log::ENVIRONMENT_STAGING];
+            }
+
+            public function getSupportedBreadcrumbTypes(): array
+            {
+                return [Log::TYPE_DEBUG, Log::TYPE_ERROR, Log::TYPE_WARNING, Log::TYPE_INFO, Log::TYPE_VERBOSE];
+            }
+        };
+    }
+
+    /**
+     * A log which was never populated must be rejected with an Exception,
+     * not a fatal Error about uninitialized typed properties.
+     *
+     * @throws Exception
+     */
+    public function testAddLogWithEmptyLogThrowsException(): void
+    {
+        $logger = new Logger($this->getAdapter());
+
+        $this->expectException(Exception::class);
+        $this->expectExceptionMessage('Log is not ready to be pushed.');
+
+        $logger->addLog(new Log());
+    }
+
+    /**
+     * A partially populated log (missing the action) must also be rejected
+     * with an Exception.
+     *
+     * @throws Exception
+     */
+    public function testAddLogWithMissingActionThrowsException(): void
+    {
+        $logger = new Logger($this->getAdapter());
+
+        $log = new Log();
+        $log->setType(Log::TYPE_ERROR);
+        $log->setMessage('Something went wrong');
+        $log->setVersion('1.0.0');
+        $log->setEnvironment(Log::ENVIRONMENT_PRODUCTION);
+
+        $this->expectException(Exception::class);
+        $this->expectExceptionMessage('Log is not ready to be pushed.');
+
+        $logger->addLog($log);
+    }
+
+    /**
+     * Reading a required field of a fresh log must not fatal.
+     */
+    public function testUnsetRequiredFieldsAreEmptyStrings(): void
+    {
+        $log = new Log();
+
+        self::assertSame('', $log->getAction());
+        self::assertSame('', $log->getType());
+        self::assertSame('', $log->getMessage());
+        self::assertSame('', $log->getVersion());
+        self::assertSame('', $log->getEnvironment());
+    }
+
+    /**
+     * A fully populated log is pushed to the adapter.
+     *
+     * @throws Exception
+     */
+    public function testAddLogWithCompleteLog(): void
+    {
+        $logger = new Logger($this->getAdapter());
+
+        $log = new Log();
+        $log->setType(Log::TYPE_ERROR);
+        $log->setMessage('Something went wrong');
+        $log->setVersion('1.0.0');
+        $log->setEnvironment(Log::ENVIRONMENT_PRODUCTION);
+        $log->setAction('testAction');
+
+        self::assertEquals(200, $logger->addLog($log));
+    }
+}