org\bovigo\vfs\vfsStreamWrapperMkDirTestCase::unlinkCanNotRemoveNonEmptyDirectory PHP Method

    public function unlinkCanNotRemoveNonEmptyDirectory()
    {
        try {
            $this->assertFalse(unlink($this->barURL));
        } catch (\PHPUnit_Framework_Error $fe) {
            $this->assertEquals('unlink(vfs://foo/bar): Operation not permitted', $fe->getMessage());
        }
        $this->assertTrue($this->foo->hasChild('bar'));
        $this->assertFileExists($this->barURL);
    }