Change NotWritableException to extend RuntimeException

This commit changes NotWritableException to extend RuntimeException instead of LogicException. Additionally, it updates the Aspect class to check if the provided directory is writable and throws a NotWritableException if it is not. A test case is also added to validate this new behavior.

src/Aspect.php

@@ -4,10 +4,13 @@
 
 namespace Ray\Aop;
 
+use Ray\Aop\Exception\NotWritableException;
 use ReflectionClass;
 use ReflectionMethod;
 use RuntimeException;
 
+use function file_exists;
+use function is_writable;
 use function sys_get_temp_dir;
 
 /**
@@ -46,9 +49,11 @@ public function __construct(?string $tmpDir = null)
     {
         if ($tmpDir === null) {
             $tmp = sys_get_temp_dir();
-            $this->tmpDir = $tmp !== '' ? $tmp : '/tmp';
+            $tmpDir = $tmp !== '' ? $tmp : '/tmp';
+        }
 
-            return;
+        if (! file_exists($tmpDir) || ! is_writable($tmpDir)) {
+            throw new NotWritableException("{$tmpDir} is not writable.");
         }
 
         $this->tmpDir = $tmpDir;

src/Exception/NotWritableException.php

@@ -4,8 +4,8 @@
 
 namespace Ray\Aop\Exception;
 
-use LogicException;
+use RuntimeException;
 
-class NotWritableException extends LogicException implements ExceptionInterface
+class NotWritableException extends RuntimeException implements ExceptionInterface
 {
 }

tests/Aspect/AspectTest.php

@@ -8,6 +8,7 @@
 use Ray\Aop\Annotation\FakeClassMarker;
 use Ray\Aop\Annotation\FakeMarker;
 use Ray\Aop\Aspect\Fake\src\FakeMyClass;
+use Ray\Aop\Exception\NotWritableException;
 use Ray\Aop\Matcher\AnyMatcher;
 use Ray\Aop\Matcher\StartsWithMatcher;
 
@@ -29,6 +30,12 @@ public function testTmpDir(): void
         $this->assertInstanceOf(Aspect::class, new Aspect(dirname(__DIR__) . '/tmp'));
     }
 
+    public function testTmpDirNotWritable(): void
+    {
+        $this->expectException(NotWritableException::class);
+        new Aspect('/__INVALID_DIR__');
+    }
+
     public function testNewInstance(): void
     {
         $this->aspect->bind(