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Problem Solving Followup - LINQ #32

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23 changes: 13 additions & 10 deletions UnitTestProject/LinqUnitTests.cs
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Original file line number Diff line number Diff line change
@@ -1,6 +1,8 @@
using System;
using System.Diagnostics.CodeAnalysis;
using System.Text;
using System.Collections.Generic;
using NUnit.Framework.Constraints;
using problem_solving_followup;
using Newtonsoft.Json;
using System.IO;
Expand Down Expand Up @@ -66,16 +68,17 @@ public void Test_WhatIsTheTotalNumberOfTransactions()
[Test]
public void Test_WhatIsTheTotalQuantityPurchased()
{
var result = ""; // TODO
var result = transactions.Sum( q => q.Quantity); // TODO

Assert.AreEqual(3001, result);
}

[Test]
public void Test_WhatIsTheTotalQuantityPurchasedIn2016()
{
var result = ""; // TODO

var result =
transactions.Where(t => t.Date >= Convert.ToDateTime("2016-01-1") && t.Date < Convert.ToDateTime("2017-01-01")).Sum(t => t.Quantity);

Assert.AreEqual(1160, result);
}

Expand All @@ -90,55 +93,55 @@ public void Test_WhatIsTheTotalQuantityPurchasedInThePast7Days()
[Test]
public void Test_HowManyTransactionsBoughtMoreThan1Quantity()
{
var result = ""; // TODO
var result = transactions.Count(c => c.Quantity > 1); // TODO

Assert.AreEqual(1001, result);
}

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

Assert.AreEqual(267, result);
}

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

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

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

Assert.AreEqual(390, result);
}

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

Assert.AreEqual(44, result);
}

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

Assert.AreEqual(33, result);
}

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

Assert.AreEqual(2, result);
}
Expand Down