org\bovigo\vfs\vfsStreamWrapperFileTestCase::usingFilePointer PHP Метод

    public function usingFilePointer()
    {
        $fp = fopen($this->baz1URL, 'r');
        $this->assertEquals(0, ftell($fp));
        $this->assertFalse(feof($fp));
        $this->assertEquals(0, fseek($fp, 2));
        $this->assertEquals(2, ftell($fp));
        $this->assertEquals(0, fseek($fp, 1, SEEK_CUR));
        $this->assertEquals(3, ftell($fp));
        $this->assertEquals(0, fseek($fp, 1, SEEK_END));
        $this->assertEquals(6, ftell($fp));
        $this->assertTrue(feof($fp));
        $this->assertEquals(0, fseek($fp, 2));
        $this->assertFalse(feof($fp));
        $this->assertEquals(2, ftell($fp));
        $this->assertEquals('z', fread($fp, 1));
        $this->assertEquals(3, ftell($fp));
        $this->assertEquals(' 1', fread($fp, 8092));
        $this->assertEquals(5, ftell($fp));
        $this->assertTrue(fclose($fp));
    }