public void GeneratePassword_WithInvalidLength_ShouldReturnBadRequest(int length)
{
// Arrange
// Act
IActionResult result = _controller.GeneratePassword(length);
// Assert
var objectResult = Assert.IsType <BadRequestObjectResult>(result);
Assert.Equal("The length must be greater than or equal to 1 and less than or equal to 300.", objectResult.Value);
}
