public void SicCodeSearchModel_GetHashCode_Is_Zero_When_SicCodeId_Is_Null()
        {
            // Arrange
            var sicCodeSearchModel = new SicCodeSearchModel {
                SicCodeId = null
            };

            // Act
            int actual = sicCodeSearchModel.GetHashCode();

            // Assert
            Assert.AreEqual(0, actual);
        }
        public void SicCodeSearchModel_GetHashCode_Is_Bigger_Than_Zero_When_SicCodeId_Not_Null()
        {
            // Arrange
            var testSicCode        = "698";
            int expectedHashCode   = testSicCode.GetHashCode();
            var sicCodeSearchModel = new SicCodeSearchModel {
                SicCodeId = testSicCode
            };

            // Act
            int actual = sicCodeSearchModel.GetHashCode();

            // Assert
            Assert.AreEqual(expectedHashCode, actual);
        }