public function testRectangularMatrix()
{
$matrix = new BitMatrix(75, 20);
$this->assertEquals(75, $matrix->getWidth());
$this->assertEquals(20, $matrix->getHeight());
$matrix->set(10, 0);
$matrix->set(11, 1);
$matrix->set(50, 2);
$matrix->set(51, 3);
$matrix->flip(74, 4);
$matrix->flip(0, 5);
$this->assertTrue($matrix->get(10, 0));
$this->assertTrue($matrix->get(11, 1));
$this->assertTrue($matrix->get(50, 2));
$this->assertTrue($matrix->get(51, 3));
$this->assertTrue($matrix->get(74, 4));
$this->assertTrue($matrix->get(0, 5));
$matrix->flip(50, 2);
$matrix->flip(51, 3);
$this->assertFalse($matrix->get(50, 2));
$this->assertFalse($matrix->get(51, 3));
}
