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<?php
/**
* @file
* Test the Scanner. This requires the InputStream tests are all good.
*/
namespace HTML5\Tests;
use \HTML5\Parser\StringInputStream;
use \HTML5\Parser\Scanner;
require_once 'TestCase.php';
class ScannerTest extends TestCase {
/**
* A canary test to make sure the basics are setup and working.
*/
public function testConstruct() {
$is = new StringInputStream("abc");
$s = new Scanner($is);
$this->assertInstanceOf('\HTML5\Parser\Scanner', $s);
}
public function testNext() {
$s = new Scanner(new StringInputStream("abc"));
$this->assertEquals('b', $s->next());
$this->assertEquals('c', $s->next());
}
public function testPosition() {
$s = new Scanner(new StringInputStream("abc"));
$this->assertEquals(0, $s->position());
$s->next();
$this->assertEquals(1, $s->position());
}
public function testPeek() {
$s = new Scanner(new StringInputStream("abc"));
$this->assertEquals('b', $s->peek());
$s->next();
$this->assertEquals('c', $s->peek());
}
public function testCurrent() {
$s = new Scanner(new StringInputStream("abc"));
// Before scanning the string begins the current is empty.
$this->assertEquals('a', $s->current());
$c = $s->next();
$this->assertEquals('b', $s->current());
// Test movement through the string.
$c = $s->next();
$this->assertEquals('c', $s->current());
}
public function testUnconsume() {
$s = new Scanner(new StringInputStream("abcdefghijklmnopqrst"));
// Get initial position.
$s->next();
$start = $s->position();
// Move forward a bunch of positions.
$amount = 7;
for($i = 0; $i < $amount; $i++) {
$s->next();
}
// Roll back the amount we moved forward.
$s->unconsume($amount);
$this->assertEquals($start, $s->position());
}
public function testGetHex() {
$s = new Scanner(new StringInputStream("ab13ck45DE*"));
$this->assertEquals('ab13c', $s->getHex());
$s->next();
$this->assertEquals('45DE', $s->getHex());
}
public function testGetAsciiAlpha() {
$s = new Scanner(new StringInputStream("abcdef1%mnop*"));
$this->assertEquals('abcdef', $s->getAsciiAlpha());
// Move past the 1% to scan the next group of text.
$s->next();
$s->next();
$this->assertEquals('mnop', $s->getAsciiAlpha());
}
public function testGetAsciiAlphaNum() {
$s = new Scanner(new StringInputStream("abcdef1ghpo#mn94op"));
$this->assertEquals('abcdef1ghpo', $s->getAsciiAlphaNum());
// Move past the # to scan the next group of text.
$s->next();
$this->assertEquals('mn94op', $s->getAsciiAlphaNum());
}
public function testGetNumeric() {
$s = new Scanner(new StringInputStream("1784a 45 9867 #"));
$this->assertEquals('1784', $s->getNumeric());
// Move past the 'a ' to scan the next group of text.
$s->next();
$s->next();
$this->assertEquals('45', $s->getNumeric());
}
}
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