public function testEatChars()
{
$buffer = new Buffer("abcdef");
$buffer->nextLine();
$chars = $buffer->eatChars(2);
$this->assertSame("ab", $chars);
$this->assertSame("cdef", $buffer->getLine());
$this->assertSame(3, $buffer->getColumn());
$chars = $buffer->eatChars(5);
$this->assertSame("cdef", $chars);
$this->assertSame("", $buffer->getLine());
$this->assertSame(7, $buffer->getColumn());
}
public function testInjectLines()
{
$buffer = new Buffer(" abc\n def\nghi");
$buffer->injectLines([" jkl", " mop"], 1);
$this->assertTrue($buffer->nextLine());
//this skip magic comment
$this->assertSame(" jkl", $buffer->getLine());
$this->assertSame(1, $buffer->getLineno());
$this->assertSame(1, $buffer->getColumn());
$this->assertTrue($buffer->nextLine());
$this->assertSame(" mop", $buffer->getLine());
$this->assertSame(2, $buffer->getLineno());
$this->assertTrue($buffer->nextLine());
$this->assertSame(" abc", $buffer->getLine());
$this->assertSame(3, $buffer->getLineno());
$this->assertTrue($buffer->nextLine());
$this->assertSame(" def", $buffer->getLine());
$this->assertSame(4, $buffer->getLineno());
$this->assertTrue($buffer->nextLine());
$this->assertSame("ghi", $buffer->getLine());
$this->assertSame(5, $buffer->getLineno());
$this->assertFalse($buffer->nextLine());
}
protected function syntaxError(Buffer $buf, $msg)
{
$this->column = $buf->getColumn();
$this->lineno = $buf->getLineno();
$msg = sprintf('%s in %s on line %d, column %d', $msg, $this->filename, $this->lineno, $this->column);
return new SyntaxErrorException($msg);
}
