public function testIsReadable() { $this->root->addChild(vfsStream::newFile('readable.txt', 0444)); $this->root->addChild(vfsStream::newFile('not_readable.txt', 00)); $file1 = new File(vfsStream::url('root/readable.txt')); $this->assertTrue($file1->isReadable()); $file2 = new File(vfsStream::url('root/not_readable.txt')); $this->assertFalse($file2->isReadable()); }