CIiP-WS-2021-2022-Projektarbeit_CliArcadeService/src/test/java/Application/CliTest.java

package Application;

import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.io.PrintStream;

import static org.junit.jupiter.api.Assertions.assertEquals;

class CliTest {

    private final ByteArrayOutputStream outContent = new ByteArrayOutputStream();
    private final PrintStream originalOut = System.out;
    private final ByteArrayInputStream inContent = new ByteArrayInputStream("Test".getBytes());
    private final InputStream originalIn = System.in;

    Cli cli;

    @BeforeEach
    void setUp() {
        System.setOut(new PrintStream(outContent));
        System.setIn(inContent);
        cli = new Cli(System.out, System.in);
    }

    @AfterEach
    void tearDown() {
        System.setOut(originalOut);
        System.setIn(originalIn);
    }

    //Only tests correct stream integration, other methods are provided
    @Test
    void getPrintStream() {
        cli.getPrintStream().println("Hello World!");
        assertEquals("Hello World!\n", outContent.toString().replaceAll("\r", ""));
    }

    //Only tests correct stream integration, other methods are provided
    @Test
    void getScanner() {
        assertEquals(cli.getScanner().next(), "Test");
    }
}