public void FindMostOverlappingParties_NullInput_ThrowsException()
{
// Arrange
// Act
void action() => OverlappingParties.FindMostOverlappingParties(null);
// Assert
TestHelpers.AssertExceptionThrown(action, typeof(ArgumentNullException));
}
public void FindMostOverlappingParties_NoParties_ThrowsException()
{
// Arrange
var parties = new List <Party>();
// Act
void action() => OverlappingParties.FindMostOverlappingParties(parties);
// Assert
TestHelpers.AssertExceptionThrown(action, typeof(ArgumentException));
}
public void FindMostOverlappingParties_WithOneParty_ReturnsStartDateOfFirstParty()
{
// Arrange
var parties = new List <Party>
{
new Party(_janFirst, _janFirst.AddDays(1))
};
// Act
var actual = OverlappingParties.FindMostOverlappingParties(parties);
// Assert
Assert.AreEqual(_janFirst, actual);
}
public void FindMostOverlappingParties_InvalidPartyDates_ThrowsException()
{
// Arrange
var parties = new List <Party>
{
new Party(_janFirst, _janFirst.AddDays(-1))
};
// Act
void action() => OverlappingParties.FindMostOverlappingParties(parties);
// Assert
TestHelpers.AssertExceptionThrown(action, typeof(ArgumentOutOfRangeException));
}
public void FindMostOverlappingParties_WithOverlapAtSameTime_DoesNotReturnOverlap()
{
// Arrange
var parties = new List <Party>
{
new Party(_janFirst, _janFirst.AddDays(1)),
new Party(_janFirst.AddDays(1), _janFirst.AddDays(2))
};
// Act
var actual = OverlappingParties.FindMostOverlappingParties(parties);
// Assert
Assert.AreEqual(_janFirst, actual);
}
public void FindMostOverlappingParties_WithTwoDisjointPartyGroups_ReturnsStartDateOfLargerGroup()
{
// Arrange
var parties = new List <Party>
{
new Party(_janFirst, _janFirst.AddDays(1)),
new Party(_janFirst.AddDays(2), _janFirst.AddDays(4)),
new Party(_janFirst.AddDays(3), _janFirst.AddDays(5))
};
// Act
var actual = OverlappingParties.FindMostOverlappingParties(parties);
// Assert
Assert.AreEqual(_janFirst.AddDays(3), actual);
}