fix: issue when using Future class

src/Cbor/Types/Future.php

@@ -25,6 +25,6 @@ public function __toString(): string
 
     public function toString(): string
     {
-        return "<future> { $this->inner }";
+        return "<future> $this->inner";
     }
 }

tests/core/cbor/FutureTest.php

@@ -0,0 +1,21 @@
+<?php
+
+namespace core\cbor;
+
+use PHPUnit\Framework\TestCase;
+use Surreal\Cbor\Types\Future;
+
+class FutureTest extends TestCase
+{
+    public function testToString()
+    {
+        $future = new Future("time::now()");
+        $this->assertEquals("<future> time::now()", $future->__toString());
+    }
+
+    public function testJsonSerialize()
+    {
+        $future = new Future("time::now()");
+        $this->assertEquals("<future> time::now()", $future->jsonSerialize());
+    }
+}

tests/protocols/http/QueryTest.php

@@ -5,6 +5,7 @@
 use Beau\CborPHP\exceptions\CborException;
 use Exception;
 use PHPUnit\Framework\TestCase;
+use Surreal\Cbor\Types\Future;
 use Surreal\Cbor\Types\None;
 use Surreal\Cbor\Types\Record\RecordId;
 use Surreal\Cbor\Types\Table;
@@ -184,4 +185,31 @@ function: "fn::greet",
 
         $db->close();
     }
+
+    public function testFutureQuery(): void
+    {
+        $db = $this->getDb();
+
+        $future = new Future("duration::years(time::now() - birthday) >= 18");
+        $db->let("canDrive", $future);
+
+        $response = $db->query('
+            CREATE future_test
+            SET
+                birthday = <datetime> "2000-06-22",
+                can_drive = $canDrive
+        ');
+
+        $this->assertIsArray($response);
+
+        [$data] = $response;
+
+        $this->assertArrayHasKey("result", $data);
+        $this->assertArrayHasKey("time", $data);
+        $this->assertArrayHasKey("status", $data);
+
+        $this->assertEquals("OK", $data["status"]);
+
+        $db->close();
+    }
 }