public void Remove_WhenPassedNameOfShowInList_SuccessfullyRemovesThatShow()
{
// Arrange
var showList = new RankedShowList();
showList.Add(new RankedShow
{
Name = "show1",
Rank = 1
});
var showNameToRemove = "show2";
showList.Add(new RankedShow
{
Name = showNameToRemove,
Rank = 2
});
showList.Add(new RankedShow
{
Name = "show3",
Rank = 3
});
// Act
showList.Remove(showNameToRemove);
// Assert
Assert.Equal(2, showList.NumberOfShowsInList);
Assert.DoesNotContain(new RankedShow {
Name = showNameToRemove
}, showList.RankedShows);
}
public void AfterRemove_WhenPassedNameOfShowInList_SuccessfullyRemovesThatShow()
{
// Arrange
var showList = new RankedShowList();
showList.Add(new RankedShow
{
Name = "show1",
Rank = 1
});
var showNameToRemove = "show2";
showList.Add(new RankedShow
{
Name = showNameToRemove,
Rank = 2
});
showList.Add(new RankedShow
{
Name = "show3",
Rank = 3
});
// Act
showList.Remove(showNameToRemove);
// Assert
for (var i = 0; i < showList.NumberOfShowsInList; i++)
{
Assert.Equal(i + 1, showList[i].Rank);
}
}
public void AddingShow_WithRankEqualToNumberOfShowsInList_ShouldLeaveEachShowInListsRankUnchanged()
{
var showList = new RankedShowList();
var rankedShows = new List <RankedShow>();
var numberOfShowsToTest = 3;
for (var i = 0; i < numberOfShowsToTest; i++)
{
showList.Add(new RankedShow()
{
Name = $"{i}"
});
rankedShows.Add(showList[i]);
}
var startingRanks = new List <int>();
foreach (var show in rankedShows)
{
startingRanks.Add(show.Rank);
}
showList.Add(new RankedShow()
{
Rank = (int)numberOfShowsToTest
});
for (var i = 0; i < numberOfShowsToTest; i++)
{
Assert.Equal(startingRanks[i], showList[i].Rank);
}
}
public void AddingNullShow_InAddMethod_ThrowsArgumentNullException()
{
// Arrange
var showList = new RankedShowList();
// Act and Assert
Assert.Throws <ArgumentNullException>(() => showList.Add(null));
}
public void AddingShowToList_ShouldIncreaseNumberOfShowsInList_ByOne()
{
var showList = new RankedShowList();
var showsInListBeforeAddingShow = showList.NumberOfShowsInList;
showList.Add(new RankedShow());
var showsInListAfterAddingShow = showList.NumberOfShowsInList;
Assert.Equal(showsInListBeforeAddingShow + 1, showsInListAfterAddingShow);
}
public void AddingShow_WithRankOne_ShouldIncrementAllOtherShowsRank_ByOne()
{
var showList = new RankedShowList();
var rankedShows = new List <RankedShow>();
var numberOfShowsToTest = 3;
for (var i = 0; i < numberOfShowsToTest; i++)
{
showList.Add(new RankedShow()
{
Name = $"{i}"
});
//getting a reference of each show in the internal list
rankedShows.Add(showList[i]);
}
var startingRanks = new List <int>();
for (var i = 0; i < numberOfShowsToTest; i++)
{
startingRanks.Add(rankedShows[i].Rank);
}
//check before adding to showList that each show rank is it's expected value
foreach (var show in rankedShows)
{
Assert.Equal(show.Name, $"{show.Rank - 1}");
}
showList.Add(new RankedShow()
{
Rank = 1
});
//check after adding show with rank 1 asserting each show rank increased by one
foreach (var show in rankedShows)
{
Assert.Equal(show.Name, $"{show.Rank - 2}");
}
}
public void AddingShow_WithRankHigherThanNumberOfShowsInList_ShouldChangeShowsRank_ToNumberOfShowsInList()
{
var showList = new RankedShowList();
var showsInList = 3;
for (var i = 0; i < showsInList; i++)
{
showList.Add(new RankedShow());
}
Assert.Equal(showsInList, showList.NumberOfShowsInList);
var showWithRank100 = new RankedShow()
{
Rank = 100
};
showList.Add(showWithRank100);
Assert.Equal(showList.NumberOfShowsInList, showWithRank100.Rank);
}
public void RankOfEachShow_InRankedShowList_ShouldMatch_IndexInShowListPlusOne()
{
var showList = new RankedShowList();
var numberOfShowsToTest = 3;
for (var i = 0; i < numberOfShowsToTest; i++)
{
showList.Add(new RankedShow());
}
for (var i = 0; i < numberOfShowsToTest; i++)
{
Assert.Equal(i + 1, showList[i].Rank);
}
}
public void GetPercentileRankAtIndexMethod_ShouldCorrectlyCalculate_ThePercentileRankOfEachShow()
{
var showList = new RankedShowList();
var showsInList = 3;
for (var i = 0; i < showsInList; i++)
{
showList.Add(new RankedShow());
}
for (var i = 0; i < showsInList; i++)
{
Assert.Equal(1 - (1 / ((double)(showsInList + 1))) * (i + 1), showList.GetPercentileRankAtIndex(i));
}
}
public void EachShowsPercentileRank_ShouldMatchValue_FromGetPercentileRankAtIndex()
{
var showList = new RankedShowList();
var showsInList = 3;
for (var i = 0; i < showsInList; i++)
{
showList.Add(new RankedShow());
}
for (var i = 0; i < showsInList; i++)
{
var expected = showList.GetPercentileRankAtIndex(i);
var actual = showList[i].PercentileRank;
Assert.Equal(expected, actual);
}
}
public void AfterReplaceAll_EachShowsPercentileRank_ShouldMatchValue_FromGetPercentileRankAtIndex()
{
// Arrange
var showList = new RankedShowList();
var showsInList = 3;
for (var i = 0; i < showsInList; i++)
{
showList.Add(new RankedShow());
}
var replacementList = new List <RankedShow>();
replacementList.Add(new RankedShow
{
Name = "show1",
Rank = 2
});
replacementList.Add(new RankedShow
{
Name = "show2",
Rank = 1
});
replacementList.Add(new RankedShow
{
Name = "show3",
Rank = 3
});
// Act
showList.ReplaceAll(replacementList);
// Assert
for (var i = 0; i < 3; i++)
{
var expected = showList.GetPercentileRankAtIndex(i);
var actual = showList[i].PercentileRank;
Assert.Equal(expected, actual);
}
}
public void AfterReplaceAll_RankOfEachShow_InRankedShowList_ShouldMatch_IndexInShowListPlusOne()
{
// Arrange
var showList = new RankedShowList();
var showsInList = 3;
for (var i = 0; i < showsInList; i++)
{
showList.Add(new RankedShow());
}
var replacementList = new List <RankedShow>();
replacementList.Add(new RankedShow
{
Name = "show1",
Rank = 2
});
replacementList.Add(new RankedShow
{
Name = "show2",
Rank = 1
});
replacementList.Add(new RankedShow
{
Name = "show3",
Rank = 3
});
// Act
showList.ReplaceAll(replacementList);
// Assert
for (var i = 0; i < showsInList; i++)
{
Assert.Equal(i + 1, showList[i].Rank);
}
}