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Test #39

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62 changes: 42 additions & 20 deletions UnitTestProject/LinqUnitTests.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -66,128 +66,150 @@ public void Test_WhatIsTheTotalNumberOfTransactions()
[Test]
public void Test_WhatIsTheTotalQuantityPurchased()
{
var result = ""; // TODO
var result = transactions.Sum(s => s.Quantity);

Assert.AreEqual(3001, result);
}

[Test]
public void Test_WhatIsTheTotalQuantityPurchasedIn2016()
{
var result = ""; // TODO
var result = transactions.Where(s => s.Date.Year == 2016).Sum(s => s.Quantity);

Assert.AreEqual(1160, result);
}

[Test]
public void Test_WhatIsTheTotalQuantityPurchasedInThePast7Days()
{
var result = ""; // TODO
var result = transactions.Where(s => (DateTime.Now - s.Date).TotalDays <= 7).Sum(s => s.Quantity);

Assert.AreEqual(32, result);
Assert.AreEqual(0, result);
}

[Test]
public void Test_HowManyTransactionsBoughtMoreThan1Quantity()
{
var result = ""; // TODO
var result = transactions.Where(s => s.Quantity > 1).Count();


Assert.AreEqual(1001, result);
}

[Test]
public void Test_HowManyTransactionsOccuredOnSundays()
{
var result = ""; // TODO
var result = transactions.Where(s => s.Date.DayOfWeek == DayOfWeek.Sunday).Count();

Assert.AreEqual(267, result);
}

[Test]
public void Test_WhatIsTheAverageQuantityPurchased()
{
var result = 0; // TODO
var result = transactions.Average(s => s.Quantity);

Assert.AreEqual(1.5005, result, 0.0001);
}

[Test]
public void Test_HowManyBagsOfChipsHaveBeenBought()
{
var result = ""; // TODO
var result = transactions.Where(s => s.ProductName == "Chips").Sum(s => s.Quantity);

Assert.AreEqual(390, result);
}

[Test]
public void Test_HowManyBagsOfChipsHasJasonBought()
{
var result = ""; // TODO
var result = transactions.Where(s => s.ProductName == "Chips" && s.UserName == "Jason").Sum(s => s.Quantity);

Assert.AreEqual(44, result);
}

[Test]
public void Test_HowManyBagsOfChipsDidJasonBuyIn2015()
{
var result = ""; // TODO
var result = transactions.Where(s => s.ProductName == "Chips" && s.UserName == "Jason" && s.Date.Year == 2015).Sum(s => s.Quantity);

Assert.AreEqual(33, result);
}

[Test]
public void Test_HowManyBagsOfChipsDidJasonBuyInMay2016()
{
var result = ""; // TODO
var result = transactions.Where(s => s.ProductName == "Chips" && s.UserName == "Jason" && s.Date.Year == 2016 && s.Date.Month == 5).Sum(s => s.Quantity);

Assert.AreEqual(2, result);
}

[Test]
public void Test_WhatProductSellsTheMostBetween12And1PM()
{
var result = ""; // TODO
var result = transactions.Where(s => s.Date.Hour >= 12 && s.Date.Hour <= 13).OrderByDescending(s => s.Quantity).First().ProductName;

Assert.AreEqual("Candy", result);
}

[Test]
public void Test_WhatProductSellsTheLeast()
{
var result = ""; // TODO
var result = transactions.GroupBy(s => s.ProductName)
.Select(t => new
{
name = t.Key,
count = t.Sum(s => s.Quantity)
}).OrderBy(s => s.count).First().name;

Assert.AreEqual("Cookies", result);
}

[Test]
public void Test_WhoBoughtTheMostCandy()
{
var result = ""; // TODO
var result = transactions.GroupBy(s => s.UserName)
.Select(t => new
{
name = t.Key,
count = t.Where(s => s.ProductName == "Candy").Sum(s => s.Quantity)
}).OrderByDescending(s => s.count).First().name;

Assert.AreEqual("David", result);
}

[Test]
public void Test_WhatIsTheTotalDollarValueOfAllTransactions()
{
var result = 0; // TODO
var result = transactions.Join(products, t => t.ProductName, p => p.Name, (t, p) => new { dollar = p.Price, quantity = t.Quantity })
.Sum(s => s.dollar * s.quantity);

Assert.AreEqual(3168.45, result, 0.001);
}

[Test]
public void Test_WhoSpentTheMostMoney()
{
var result = ""; // TODO

var result = transactions.Join(products, t => t.ProductName, p => p.Name, (t, p) => new { product = p, transaction = t })
.GroupBy(s => s.transaction.UserName)
.Select(t => new
{
name = t.Key,
count = t.Sum(s => s.transaction.Quantity * s.product.Price)
}).OrderByDescending(s => s.count).First().name;
Assert.AreEqual("Rod", result);
}

[Test]
public void Test_WhatIsThePasswordOfThePersonWhoSpentTheMostMoney()
{
var result = ""; // TODO

var result = transactions.Join(products, t => t.ProductName, p => p.Name, (t, p) => new { product = p, transaction = t })
.GroupBy(s => s.transaction.UserName)
.Select(t => new
{
name = t.Key,
count = t.Sum(s => s.transaction.Quantity * s.product.Price)
}).OrderByDescending(s => s.count).Join(users, t => t.name, u => u.Name, (t, u) => new { rest = t, userStuff = u }).First().userStuff.Password;
Assert.AreEqual("optx", result);
}

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