import org.junit.Before;
import org.junit.jupiter.api.Test;

import java.io.IOException;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;

class DirProcessorTest
{
    @Test
    void testFolder1() throws IOException {
        FileProcessor fileProcessor = mock(FileProcessor.class);
        DirProcessor dp = new DirProcessor(fileProcessor);
        when(fileProcessor.countSymbols("src\\test\\resources\\DPFiles\\NotEmptyFolder\\1.txt")).thenReturn(5);
        when(fileProcessor.countSymbols("src\\test\\resources\\DPFiles\\NotEmptyFolder\\2.txt")).thenReturn(4);
        assertEquals(9, dp.countSymbolsFromPackage("src\\test\\resources\\DPFiles\\NotEmptyFolder"));
    }
    @Test
    void testFolder2() throws IOException {
        FileProcessor fileProcessor = mock(FileProcessor.class);
        DirProcessor dp = new DirProcessor(fileProcessor);
        when(fileProcessor.countSymbols("src\\test\\resources\\DPFiles\\Folder2\\1.txt")).thenReturn(5);
        when(fileProcessor.countSymbols("src\\test\\resources\\DPFiles\\Folder2\\2.txt")).thenReturn(10);
        assertEquals(15, dp.countSymbolsFromPackage("src\\test\\resources\\DPFiles\\Folder2"));
    }
    @Test
    void testFolderWithEmptyFile() throws IOException {
        FileProcessor fileProcessor = mock(FileProcessor.class);
        DirProcessor dp = new DirProcessor(fileProcessor);
        when(fileProcessor.countSymbols("src\\test\\resources\\DPFiles\\EmptyFolder\\1.txt")).thenReturn(0);
        assertEquals(0, dp.countSymbolsFromPackage("src\\test\\resources\\DPFiles\\EmptyFolder"));
    }
    @Test
    void shouldNotOpenXML() throws IOException {
        FileProcessor fileProcessor = mock(FileProcessor.class);
        DirProcessor dp = new DirProcessor(fileProcessor);
        when(fileProcessor.countSymbols("src\\test\\resources\\DPFiles\\NotEmptyFolderWithXML\\1.txt")).thenReturn(5);
        when(fileProcessor.countSymbols("src\\test\\resources\\DPFiles\\NotEmptyFolderWithXML\\2.txt")).thenReturn(4);
        when(fileProcessor.countSymbols("src\\test\\resources\\DPFiles\\NotEmptyFolderWithXML\\3.xml")).thenReturn(5);
        when(fileProcessor.countSymbols("src\\test\\resources\\DPFiles\\NotEmptyFolderWithXML\\4.xml")).thenReturn(3);
        assertEquals(9, dp.countSymbolsFromPackage("src\\test\\resources\\DPFiles\\NotEmptyFolderWithXML"));
    }
}