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Linq Tests #19

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40 changes: 28 additions & 12 deletions UnitTestProject/LinqUnitTests.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -66,102 +66,114 @@ public void Test_WhatIsTheTotalNumberOfTransactions()
[Test]
public void Test_WhatIsTheTotalQuantityPurchased()
{
var result = ""; // TODO
var result = transactions.Sum(t => t.Quantity); // TODO

Assert.AreEqual(3001, result);
}

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

Assert.AreEqual(1160, result);
}

[Test]
public void Test_WhatIsTheTotalQuantityPurchasedInThePast7Days()
{
var result = ""; // TODO
var result = transactions.Where(t => t.Date.CompareTo(new DateTime(2016, 8, 22, 16, 0, 0)) > 0).Sum(t => t.Quantity); // TODO

Assert.AreEqual(32, result);
}

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

Assert.AreEqual(1001, result);
}

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

Assert.AreEqual(267, result);
}

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

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

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

Assert.AreEqual(390, result);
}

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

Assert.AreEqual(44, result);
}

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

Assert.AreEqual(33, result);
}

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

Assert.AreEqual(2, result);
}

[Test]
public void Test_WhatProductSellsTheMostBetween12And1PM()
{
var result = ""; // TODO
// grab transactions between 12 and 1
// get quantity of each product sold in transactions
// get name of max quantity
var result = transactions.Where(t => t.Date.Hour >= 12).Where(t => t.Date.Hour < 13)
.Select(t => new { name = t.ProductName, quantity = transactions.Where(i => i.ProductName == t.ProductName).Sum(i => i.Quantity) })
.Max(k => k.quantity) ; // TODO

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

[Test]
public void Test_WhatProductSellsTheLeast()
{
var result = ""; // TODO
// get quantity of each product sold in all transactions
// get the min of each
var result = transactions.Select(t => new { name = t.ProductName, quantity = transactions.Where(i => i.ProductName == t.ProductName).Sum(i => i.Quantity) })
; // TODO

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

[Test]
public void Test_WhoBoughtTheMostCandy()
{
// get transactions for candy
// get the username with most transactions
var result = ""; // TODO

Assert.AreEqual("David", result);
Expand All @@ -170,6 +182,7 @@ public void Test_WhoBoughtTheMostCandy()
[Test]
public void Test_WhatIsTheTotalDollarValueOfAllTransactions()
{
// union transaction and product table
var result = 0; // TODO

Assert.AreEqual(3168.45, result, 0.001);
Expand All @@ -178,6 +191,8 @@ public void Test_WhatIsTheTotalDollarValueOfAllTransactions()
[Test]
public void Test_WhoSpentTheMostMoney()
{
// union transaction and product table
// group transactions by users and find user total
var result = ""; // TODO

Assert.AreEqual("Rod", result);
Expand All @@ -186,6 +201,7 @@ public void Test_WhoSpentTheMostMoney()
[Test]
public void Test_WhatIsThePasswordOfThePersonWhoSpentTheMostMoney()
{
// same as above but union the max username to the user table and grab the password
var result = ""; // TODO

Assert.AreEqual("optx", result);
Expand Down