Minecraft-Server-Launcher/src/test/java/net/knarcraft/minecraftserverlauncher/server/ServerVersionContainerTest.java

package net.knarcraft.minecraftserverlauncher.server;

import net.knarcraft.minecraftserverlauncher.Main;
import net.knarcraft.minecraftserverlauncher.utility.CommonFunctions;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;

import static net.knarcraft.minecraftserverlauncher.utility.CommonFunctions.createAllFolders;
import static org.junit.jupiter.api.Assertions.assertEquals;

public class ServerVersionContainerTest {

    private final String filesDirectory = Main.getApplicationWorkDirectory() + File.separator + "files";
    private final String versionFile = filesDirectory + File.separator + "versions.csv";
    private ServerVersionContainer serverVersionContainer;

    @BeforeEach
    public void setUp() {
        try {
            createAllFolders();
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        }
        File versionFileFile = new File(versionFile);
        if (versionFileFile.exists() && !versionFileFile.delete()) {
            throw new IllegalArgumentException("Unable to remove old version file.");
        }
        serverVersionContainer = ServerVersionContainer.getInstance();
    }

    @Test
    public void toStringTest() {
        serverVersionContainer.reset();
        System.out.println(serverVersionContainer.toString());
        assertEquals("vanillaVersion;null\nsnapshotVersion;null\nbungeeVersion;null\nwaterfallVersions;\n" +
                        "travertineVersions;\nspongeVanillaVersions;\nspongeForgeVersions;\ndownloadedBuildToolsVersion;null",
                serverVersionContainer.toString());
    }

    @Test
    public void saveStateTest() throws IOException {
        serverVersionContainer.saveState();
        BufferedReader reader = CommonFunctions.getFileReader(versionFile);
        String savedData = CommonFunctions.readBufferedReader(reader);
        reader.close();
        assertEquals(serverVersionContainer.toString(), savedData);
    }

}