import domain.FileLoader;
import org.junit.jupiter.api.Test;
import java.io.File;

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

class FileLoaderTest {

    @Test
    void testGetFileFormat_knownFormats() {
        FileLoader loader = new FileLoader();
        assertEquals("txt", loader.getFileFormat(new File("test.txt")));
        assertEquals("pdf", loader.getFileFormat(new File("test.pdf")));
        assertEquals("docx", loader.getFileFormat(new File("test.docx")));
        assertEquals("pptx", loader.getFileFormat(new File("test.pptx")));
    }

    @Test
    void testGetFileFormat_unknownFormat() {
        FileLoader loader = new FileLoader();
        assertEquals("File format not supported", loader.getFileFormat(new File("test.xyz")));
    }
}