public void CalculateSocialContributions_ShouldThrowArgumentException_IfGrossSalaryIsNegative()
{
//Arrange
SocialContributionsCalculator socialContributionsCalculator = new SocialContributionsCalculator();
double grossSalaryNegative = -1;
//Action
var exception = Assert.Throws <ArgumentException>(() => socialContributionsCalculator.CalculateSocialContributions(grossSalaryNegative));
//Assert
Assert.That(exception.Message, Is.EqualTo(GlobalConstants.NegativeGrossSalaryMessage));
}
public void CalculateSocialContributions_ShouldReturn0_IfGrossSalaryIsBelowMinGrossSalary()
{
//Arrange
SocialContributionsCalculator socialContributionsCalculator = new SocialContributionsCalculator();
double grossSalaryBelowMin = GlobalConstants.MinGrossSalary - 1;
double expectedSocialContributions = 0;
//Action
double resultSocialContributions = socialContributionsCalculator.CalculateSocialContributions(grossSalaryBelowMin);
//Assert
Assert.AreEqual(expectedSocialContributions, resultSocialContributions, $"Result social contributions was not equal to {expectedSocialContributions}");
}
public void CalculateSocialContributions_ShouldReturnValidSocialContributions_IfGrossSalaryIsAboveMinAndBelowMaxGrossSalary()
{
//Arrange
SocialContributionsCalculator socialContributionsCalculator = new SocialContributionsCalculator();
double grossSalaryAboveMinAndBelowMax = GlobalConstants.MinGrossSalary + 1;
double expectedSocialContributions = (grossSalaryAboveMinAndBelowMax - GlobalConstants.MinGrossSalary) * GlobalConstants.SocialContributionsPercent / 100;
//Action
double resultSocialContributions = socialContributionsCalculator.CalculateSocialContributions(grossSalaryAboveMinAndBelowMax);
//Assert
Assert.AreEqual(expectedSocialContributions, resultSocialContributions, $"Result social contributions was not equal to {expectedSocialContributions}");
}