Fixed unserialization cache (#150)

src/ClosureInfo.php

@@ -166,6 +166,10 @@ public function __unserialize(array $data): void
         $this->body = $data['body'];
         $this->use = $data['use'] ?? null;
         $this->flags = $data['flags'] ?? 0;
+        if ($this->key && !isset(self::$cache[$this->key])) {
+            // save it to cache
+            self::$cache[$this->key] = $this;
+        }
     }
 
     public static function createKey(string $body, ?string $header = null): string

tests/PHP80/UnserializeTest.php

@@ -0,0 +1,47 @@
+<?php
+
+namespace Opis\Closure\Test\PHP80;
+
+use Opis\Closure\Security\{
+    SecurityException,
+    DefaultSecurityProvider,
+    SecurityProviderInterface
+};
+use Opis\Closure\Serializer;
+use PHPUnit\Framework\TestCase;
+
+class UnserializeTest extends TestCase
+{
+    public function testSum()
+    {
+        $f = $this->u("sum");
+        $this->assertEquals(5, $f(2, 3));
+    }
+
+    public function testSumSecurity()
+    {
+        $f = $this->u("sum.security", "opis-secret");
+        $this->assertEquals(15, $f(10, 5));
+    }
+
+    public function testSumSecurityNoSecret()
+    {
+        $this->expectException(SecurityException::class);
+        $f = $this->u("sum.security");
+    }
+
+    public function testSumSecurityWrongSecret()
+    {
+        $this->expectException(SecurityException::class);
+        $f = $this->u("sum.security", "other-secret");
+    }
+
+    private function u(string $name, SecurityProviderInterface|string|null $security = null): mixed
+    {
+        $data = file_get_contents(__DIR__ . "/v4/{$name}.bin");
+        if (is_string($security)) {
+            $security = new DefaultSecurityProvider($security);
+        }
+        return Serializer::unserialize($data, $security);
+    }
+}

tests/PHP80/v4/sum.bin

@@ -0,0 +1 @@
+O:16:"Opis\Closure\Box":2:{i:0;i:1;i:1;a:1:{s:4:"info";O:24:"Opis\Closure\ClosureInfo":4:{s:3:"key";s:32:"093e81f0bc16d309b87c6468c295a871";s:7:"imports";s:14:"namespace Abc;";s:4:"body";s:34:"fn(int $a, int $b): int => $a + $b";s:5:"flags";i:1;}}}

tests/PHP80/v4/sum.security.bin

@@ -0,0 +1,2 @@
+@3dYblAsRY6xP6slSCshCy0luKsYh05GmQKapFqTJ8jM=
+O:16:"Opis\Closure\Box":2:{i:0;i:1;i:1;a:1:{s:4:"info";O:24:"Opis\Closure\ClosureInfo":4:{s:3:"key";s:32:"093e81f0bc16d309b87c6468c295a871";s:7:"imports";s:14:"namespace Abc;";s:4:"body";s:34:"fn(int $a, int $b): int => $a + $b";s:5:"flags";i:1;}}}