function testWriteAndTruncate()
{
$f = new File("/test/reader_writer/test_truncate.txt");
$w = $f->openWriter();
$w->write("abcdefghij");
$w->write("1234567890");
$this->assertEquals($f->getSize(), 20, "La dimensione del file non corrisponde!!");
$w->truncate(10);
$this->assertEquals($f->getSize(), 10, "La dimensione del file non corrisponde!!");
$w->close();
$r = $f->openReader();
$st = $r->read(10);
$this->assertEquals("abcdefghij", $st, "La stringa letta dopo la scrittura non corridponde!!");
$r->close();
$f->delete();
}
function testWriterSeek()
{
$f = new File("/test/reader_writer/printf_test.txt");
$writer = $f->openWriter();
$writer->printf("%2d %2d %2d", 12, 34, 56);
$writer->reset();
$this->assertEquals($writer->pos(), 0, "La posizione non e' tornata zero dopo seek(0)!!!");
$writer->printf("%2d", 99);
$writer->reset();
$this->assertEquals($writer->pos(), 0, "La posizione non e' corretta dopo la seek del writer : " . $writer->pos());
$result = $writer->scanf("%2d %2d %2d");
$this->assertEquals($result[0], 99, "I valori letti non corrispondono!! : " . $result[0]);
$this->assertEquals($result[1], 34, "I valori letti non corrispondono!! : " . $result[1]);
$this->assertEquals($result[2], 56, "I valori letti non corrispondono!! : " . $result[2]);
}
