public void GetCountryPublicHoliday_WithInvalidParameters_ReturnNull()
        {
            // Arrange
            IPublicHolidaysService publicHolidaysService = new PublicHolidaysService();
            PublicHolidaysBL       publicHolidaysBL      = new PublicHolidaysBL(publicHolidaysService);

            // Act
            var result = publicHolidaysBL.GetCountryPublicHoliday(2019, "aaa");

            // Assert
            Assert.IsNull(result);
        }
        public void GetCountryPublicHoliday_WithValidParameters_ReturnExpectedResult()
        {
            // Arrange
            IPublicHolidaysService publicHolidaysService = new PublicHolidaysService();
            PublicHolidaysBL       publicHolidaysBL      = new PublicHolidaysBL(publicHolidaysService);

            // Act
            var result = publicHolidaysBL.GetCountryPublicHoliday(2019, "nl");

            // Assert
            Assert.IsNotNull(result);
            Assert.AreEqual(result.Count, 10);
        }