public function test_it_clears_canvas()
{
$canvas = new Canvas(3, 2);
$canvas->markPoint(2, 2);
$canvas->clear();
$canvasContent = $canvas->getContent();
$this->assertEquals(Canvas::POINT_EMPTY, $canvasContent[2][2]);
}
public function test_it_draws_requested_horizontal_line()
{
$canvas = new Canvas(5, 9);
$initialContent = $canvas->getContent();
$args = [4, 2, 3];
$this->command->draw($canvas, $args);
$this->assertNotEquals($initialContent, $canvas->getContent());
$expectedContent = $initialContent;
for ($i = 2; $i <= 3; ++$i) {
$expectedContent[$i][4] = Canvas::POINT_MARKED;
}
$this->assertEquals($expectedContent, $canvas->getContent());
}
public function test_it_draws_requested_vertical_line()
{
$canvas = new Canvas(5, 9);
$initialContent = $canvas->getContent();
$args = [4, 2, 7];
$this->command->draw($canvas, $args);
$this->assertNotEquals($initialContent, $canvas->getContent());
$expectedContent = $initialContent;
for ($j = 2; $j <= 7; ++$j) {
$expectedContent[4][$j] = Canvas::POINT_MARKED;
}
$this->assertEquals($expectedContent, $canvas->getContent());
}
public function test_it_draws_requested_rectangle()
{
$canvas = new Canvas(5, 9);
$initialContent = $canvas->getContent();
$args = [2, 3, 4, 7];
$this->command->draw($canvas, $args);
$this->assertNotEquals($initialContent, $canvas->getContent());
$expectedContent = $initialContent;
for ($i = 2; $i <= 4; ++$i) {
for ($j = 3; $j <= 7; ++$j) {
$expectedContent[$i][$j] = Canvas::POINT_MARKED;
}
}
$this->assertEquals($expectedContent, $canvas->getContent());
}