public void CalculateQuadraticEquationRoots_ExampleWithDeltaEqualsZero_DelatEqualsZero(double firstValue, double secondValue, double thirdValue)
{
RootCalculator rc = new RootCalculator(firstValue, secondValue, thirdValue);
rc.RootCalculate();
Assert.AreEqual(rc.Delta, 0);
}
public void CalculateQuadraticEquationRoots_ExampleWithDeltaLowerThanZero_ExpectedMessageForZeroRoots(double firstValue, double secondValue, double thirdValue, string message)
{
RootCalculator rc = new RootCalculator(firstValue, secondValue, thirdValue);
rc.RootCalculate();
Assert.AreEqual(rc.ToString(), message);
}
public void CalculateQuadraticEquationRoots_NegativeFirstPositiveThirdValue_TwoRootsExpected(double firstValue, double secondValue, double thirdValue)
{
RootCalculator rc = new RootCalculator(firstValue, secondValue, thirdValue);
rc.RootCalculate();
Assert.AreEqual(rc.Roots.Count, 2);
}
public void CalculateQuadraticEquationRoots_DeltaEqualsZero_OneRoot(double firstValue, double secondValue, double thirdValue)
{
RootCalculator rc = new RootCalculator(firstValue, secondValue, thirdValue);
rc.RootCalculate();
Assert.AreEqual(rc.Roots.Count, 1);
}
public void CalculateQuadraticEquationRoots_NegativeFirstPositiveThirdValue_DeltaAlwaysHigherThanZero(double firstValue, double secondValue, double thirdValue)
{
RootCalculator rc = new RootCalculator(firstValue, secondValue, thirdValue);
rc.RootCalculate();
Assert.Greater(rc.Delta, 0);
}
public void CalculateQuadraticEquationRoots_DeltaHigherThanZero_TwoRootsExpected(double firstValue, double secondValue, double thirdValue)
{
RootCalculator rc = new RootCalculator(firstValue, secondValue, thirdValue);
rc.RootCalculate();
Assert.AreEqual(rc.Roots.Count, 2);
}
public void CalculateQuadraticEquationRoots_ExampleWithDeltaLowerThanZero_ExpectedZeroRoots(double firstValue, double secondValue, double thirdValue)
{
RootCalculator rc = new RootCalculator(firstValue, secondValue, thirdValue);
rc.RootCalculate();
Assert.AreEqual(rc.Roots.Count, 0);
}
public void CalculateQuadraticEquationRoots_ExampleWithDeltaLowerThanZero_ExpectedDeltaLowerthanZero(double firstValue, double secondValue, double thirdValue)
{
RootCalculator rc = new RootCalculator(firstValue, secondValue, thirdValue);
rc.RootCalculate();
Assert.Less(rc.Delta, 0);
}
public void CalculateQuadraticEquationRoots_ExampleWithFirstValueZero_ExpectedException(double firstValue, double secondValue, double thirdValue)
{
RootCalculator rc = new RootCalculator(firstValue, secondValue, thirdValue);
Assert.Throws <Exception>(() => rc.RootCalculate());
}