Test basic node permissions

test/acceptance/Stream/StreamWrapper/PermissionAcceptanceTest.php

@@ -0,0 +1,44 @@
+<?php
+namespace Vfs\Stream\StreamWrapper;
+
+use Vfs\Test\AcceptanceTestCase;
+
+class PermissionAcceptanceTest extends AcceptanceTestCase
+{
+    protected $tree = [
+        'foo' => [
+            'bar' => 'baz'
+        ]
+    ];
+
+    public function testDirIsReadable()
+    {
+        $this->assertTrue(is_readable("$this->scheme:///foo"));
+    }
+
+    public function testDirIsWritable()
+    {
+        $this->assertTrue(is_writable("$this->scheme:///foo"));
+    }
+
+    public function testDirIsExecutable()
+    {
+        // Directory can't be executable
+        $this->assertFalse(is_executable("$this->scheme:///foo"));
+    }
+
+    public function testFileIsReadable()
+    {
+        $this->assertTrue(is_readable("$this->scheme:///foo/bar"));
+    }
+
+    public function testFileIsWritable()
+    {
+        $this->assertTrue(is_writable("$this->scheme:///foo/bar"));
+    }
+
+    public function testFileIsExecutable()
+    {
+        $this->assertTrue(is_executable("$this->scheme:///foo/bar"));
+    }
+}