CodeExplorer

clearLine example

foreach ($messageLines as $messageLine) {
                        $messageLineLength = Helper::width(Helper::removeDecoration($this->output->getFormatter(), $messageLine));
                        if ($messageLineLength > $this->terminal->getWidth()) {
                            $lineCount += floor($messageLineLength / $this->terminal->getWidth());
                        }
                    }
                    $this->output->clear($lineCount);
                } else {
                    $lineCount = substr_count($this->previousMessage, "\n");
                    for ($i = 0; $i < $lineCount; ++$i) {
                        $this->cursor->moveToColumn(1);
                        $this->cursor->clearLine();
                        $this->cursor->moveUp();
                    }

                    $this->cursor->moveToColumn(1);
                    $this->cursor->clearLine();
                }
            }
        } elseif ($this->step > 0) {
            $message = \PHP_EOL.$message;
        }

$cursor = new Cursor($output = $this->getOutputStream());

        $cursor->moveToPosition(18, 16);

        $this->assertEquals("\x1b[17;18H", $this->getOutputContent($output));
    }

    public function testClearLine()
    {
        $cursor = new Cursor($output = $this->getOutputStream());

        $cursor->clearLine();

        $this->assertEquals("\x1b[2K", $this->getOutputContent($output));
    }

    public function testSavePosition()
    {
        $cursor = new Cursor($output = $this->getOutputStream());

        $cursor->savePosition();

        $this->assertEquals("\x1b7", $this->getOutputContent($output));
    }