import fileio;

var PATH: string const = "scripts:/lib/file/fileio.txt";

// test global constants
{
    assert MAX_FILENAME_SIZE > 0, "MAX_FILENAME_SIZE failed";
    assert MAX_FILES_OPEN > 0, "MAX_FILES_OPEN failed";
    assert END_OF_FILE == -1, "END_OF_FILE failed";
}

// test open and close
{
    var file = open(PATH, "r");
    assert file != null, "open failed";

    var wrong = open("scripts:/doesNotExist", "r");
    assert wrong == null, "open failed";
    
    assert file.close() == true, "close failed";
}

// test append
{
    var file = open(PATH, "a");
    assert file.write("appended text") == true, "append failed";

    file.close();
}

// test accessors
{
    var file = open(PATH, "r");

    assert file.error() == false, "error failed";
    assert file.completed() == false, "completed failed";
    assert file.position() == 0, "position failed";
    assert file.size() >= 13, "size failed";
    assert file.mode() == "r", "mode failed"; 

    file.read(string);

    assert file.error() == false, "error failed";
    assert file.completed() == true, "completed failed";
    assert file.position() >= 13, "position failed";
    assert file.size() >= 13, "size failed";
    // assert file.mode() == "r", "mode failed"; 

    file.close();
}

// test write
{
    assert output.write(8), "write int failed";
    assert output.write("\n"), "write string failed";
    assert output.write(12.5), "write float failed";
}

// test read
{
    // enter 8
    assert input.read(int) == 8, "read int failed";

    // enter 12.5
    assert input.read(float) == 12.5, "read float failed";

    // enter test
    assert input.read(string) == "test\n", "read string failed";

    // invaild types
    assert input.read(type) == null, "type failed";
    assert input.read(any) == null, "any failed";
}