public void Average_WhenSequnceIsNull_ShouldThrowArgumentNullException()
{
// arrange
IEnumerable<double> sequence = null;
// act
var calcAv = new CalcAverage();
calcAv.Average(sequence);
// assert is handled by ExpectedException
}
public void Average_WhenSequnceIsEmpty_ShouldThrowArgumentException()
{
// arrange
var sequence = new List<double>();
// act
var calcAv = new CalcAverage();
calcAv.Average(sequence);
// assert is handled by ExpectedException
}
public void Average_WithIncorrectAveraheValue()
{
// arrange
var sequence = new List<double> {4, 4, 4};
var expected = 3.6;
// act
var calcAv = new CalcAverage();
var actual = calcAv.Average(sequence);
// assert
Assert.AreEqual(expected, actual, "Average not calculated correctly");
}