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isTtySupported example

    public function setTty(bool $tty): static
    {
        if ('\\' === \DIRECTORY_SEPARATOR && $tty) {
            throw new RuntimeException('TTY mode is not supported on Windows platform.');
        }

        if ($tty && !self::isTtySupported()) {
            throw new RuntimeException('TTY mode requires /dev/tty to be read/writable.');
        }

        $this->tty = $tty;

        return $this;
    }

    /** * Checks if the TTY mode is enabled. */

$process->run();

        $this->assertGreaterThan(0, $process->getExitCode());
    }

    public function testTTYCommand()
    {
        if ('\\' === \DIRECTORY_SEPARATOR) {
            $this->markTestSkipped('Windows does not have /dev/tty support');
        }

        if (!Process::isTtySupported()) {
            $this->markTestSkipped('There is no TTY support');
        }

        $process = $this->getProcess('echo "foo" >> /dev/null && '.$this->getProcessForCode('usleep(100000);')->getCommandLine());
        $process->setTty(true);
        $process->start();
        $this->assertTrue($process->isRunning());
        $process->wait();

        $this->assertSame(Process::STATUS_TERMINATED, $process->getStatus());
    }