Remove unused usings from example and exemplar (#2387)

* Add Xunit using include * Enable implicit usings * Remove unused usings * Remove unused usings from example and exemplar [no important files changed] * Less cleanup of test project * Use locked-mode to restore packages (#2388) * Add lock file * Use locked-mode to restore packages [no important files changed] * Enable nullable (#2392) * Enable nullable * Several nullable fixes * Fix dot-dsl * calculator-conundrum: fix nullable * developer-privileges: fix nullable * face-id2: fix * zebra-puzzle: fix * pov: fix * zipper: fix * tournament: fix * simple-linked-list: fix * sgf-parsing: fix * rest-api: fix * react: fix * robot-name: fix * say: fix * satellite: fix * change: fix * custom-set: fix * grep: fix * binary-search-tree: fix * linked-list: fix * alphametics: fix * hangman: fix * wizards-and-warriors-2: fix * remote-control-cleanup: fix * land-grab-in-space: fix * instruments-of-texas: fix * markdown: fix * Dont remove nullable in new exercise * More fixes * remote-control: fix [no important files changed] * Fix warnings (#2391) [no important files changed] * Enable nullable (#2392) * Enable nullable * Several nullable fixes * Fix dot-dsl * calculator-conundrum: fix nullable * developer-privileges: fix nullable * face-id2: fix * zebra-puzzle: fix * pov: fix * zipper: fix * tournament: fix * simple-linked-list: fix * sgf-parsing: fix * rest-api: fix * react: fix * robot-name: fix * say: fix * satellite: fix * change: fix * custom-set: fix * grep: fix * binary-search-tree: fix * linked-list: fix * alphametics: fix * hangman: fix * wizards-and-warriors-2: fix * remote-control-cleanup: fix * land-grab-in-space: fix * instruments-of-texas: fix * markdown: fix * Dont remove nullable in new exercise * More fixes * remote-control: fix [no important files changed] * Fix * More * Tiny fix * And more * Another * And more [no important files changed]
exercism · Feb 18, 2025 · 1a54dba · 1a54dba
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diff --git a/bin/add-practice-exercise.ps1 b/bin/add-practice-exercise.ps1
@@ -35,12 +35,6 @@ $project = "${exerciseDir}/${ExerciseName}.csproj"
 & dotnet new xunit --force -lang "C#" --target-framework-override net9.0 -o $exerciseDir -n $ExerciseName
 & dotnet sln exercises/Exercises.sln add $project
 
-# Cleanup project file
-[xml]$projectXml = Get-Content "${project}"
-$projectXml.Project.RemoveChild($projectXml.Project.ItemGroup[1])
-$projectXml.Project.PropertyGroup.RemoveChild($projectXml.Project.PropertyGroup.SelectSingleNode("ImplicitUsings"))
-$projectXml.Save("${project}")
-
 # Update project packages
 & dotnet remove $project package coverlet.collector
 & dotnet add $project package Exercism.Tests --version 0.1.0-beta1

diff --git a/exercises/concept/annalyns-infiltration/AnnalynsInfiltration.cs b/exercises/concept/annalyns-infiltration/AnnalynsInfiltration.cs
@@ -1,5 +1,3 @@
-using System;
-
 static class QuestLogic
 {
     public static bool CanFastAttack(bool knightIsAwake)

diff --git a/exercises/concept/annalyns-infiltration/AnnalynsInfiltration.csproj b/exercises/concept/annalyns-infiltration/AnnalynsInfiltration.csproj
@@ -3,9 +3,14 @@
   <PropertyGroup>
     <TargetFramework>net9.0</TargetFramework>
     <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
     <RestorePackagesWithLockFile>true</RestorePackagesWithLockFile>
   </PropertyGroup>
 
+  <ItemGroup>
+    <Using Include="Xunit" />
+  </ItemGroup>
+
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
     <PackageReference Include="xunit" Version="2.8.1" />

diff --git a/exercises/concept/annalyns-infiltration/AnnalynsInfiltrationTests.cs b/exercises/concept/annalyns-infiltration/AnnalynsInfiltrationTests.cs
@@ -1,4 +1,3 @@
-using Xunit;
 using Exercism.Tests;
 
 public class AnnalynsInfiltrationTests

diff --git a/exercises/concept/attack-of-the-trolls/.meta/Exemplar.cs b/exercises/concept/attack-of-the-trolls/.meta/Exemplar.cs
@@ -1,5 +1,3 @@
-using System;
-
 enum AccountType
 {
     Guest,

diff --git a/exercises/concept/attack-of-the-trolls/AttackOfTheTrolls.cs b/exercises/concept/attack-of-the-trolls/AttackOfTheTrolls.cs
@@ -1,5 +1,3 @@
-using System;
-
 // TODO: define the 'AccountType' enum
 
 // TODO: define the 'Permission' enum

diff --git a/exercises/concept/attack-of-the-trolls/AttackOfTheTrolls.csproj b/exercises/concept/attack-of-the-trolls/AttackOfTheTrolls.csproj
@@ -3,9 +3,14 @@
   <PropertyGroup>
     <TargetFramework>net9.0</TargetFramework>
     <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
     <RestorePackagesWithLockFile>true</RestorePackagesWithLockFile>
   </PropertyGroup>
 
+  <ItemGroup>
+    <Using Include="Xunit" />
+  </ItemGroup>
+
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
     <PackageReference Include="xunit" Version="2.8.1" />

diff --git a/exercises/concept/attack-of-the-trolls/AttackOfTheTrollsTests.cs b/exercises/concept/attack-of-the-trolls/AttackOfTheTrollsTests.cs
@@ -1,4 +1,3 @@
-using Xunit;
 using Exercism.Tests;
 
 public class AttackOfTheTrollsTests

diff --git a/exercises/concept/authentication-system/.meta/Exemplar.cs b/exercises/concept/authentication-system/.meta/Exemplar.cs
@@ -1,4 +1,3 @@
-using System.Collections.Generic;
 using System.Collections.ObjectModel;
 
 public class Authenticator

diff --git a/exercises/concept/authentication-system/AuthenticationSystem.cs b/exercises/concept/authentication-system/AuthenticationSystem.cs
@@ -1,5 +1,3 @@
-using System.Collections.Generic;
-
 public class Authenticator
 {
     private class EyeColor

diff --git a/exercises/concept/authentication-system/AuthenticationSystem.csproj b/exercises/concept/authentication-system/AuthenticationSystem.csproj
@@ -3,9 +3,14 @@
   <PropertyGroup>
     <TargetFramework>net9.0</TargetFramework>
     <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
     <RestorePackagesWithLockFile>true</RestorePackagesWithLockFile>
   </PropertyGroup>
 
+  <ItemGroup>
+    <Using Include="Xunit" />
+  </ItemGroup>
+
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
     <PackageReference Include="xunit" Version="2.8.1" />

diff --git a/exercises/concept/authentication-system/AuthenticationSystemTests.cs b/exercises/concept/authentication-system/AuthenticationSystemTests.cs
@@ -1,6 +1,3 @@
-using System;
-using System.Collections.Generic;
-using Xunit;
 using Exercism.Tests;
 
 public class AuthenticationSystemTests

diff --git a/exercises/concept/beauty-salon-goes-global/.meta/Exemplar.cs b/exercises/concept/beauty-salon-goes-global/.meta/Exemplar.cs
@@ -1,4 +1,3 @@
-using System;
 using System.Globalization;
 using System.Runtime.InteropServices;
 

diff --git a/exercises/concept/beauty-salon-goes-global/BeautySalonGoesGlobal.cs b/exercises/concept/beauty-salon-goes-global/BeautySalonGoesGlobal.cs
@@ -1,6 +1,3 @@
-using System;
-
-
 public enum Location
 {
     NewYork,

diff --git a/exercises/concept/beauty-salon-goes-global/BeautySalonGoesGlobal.csproj b/exercises/concept/beauty-salon-goes-global/BeautySalonGoesGlobal.csproj
@@ -3,9 +3,14 @@
   <PropertyGroup>
     <TargetFramework>net9.0</TargetFramework>
     <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
     <RestorePackagesWithLockFile>true</RestorePackagesWithLockFile>
   </PropertyGroup>
 
+  <ItemGroup>
+    <Using Include="Xunit" />
+  </ItemGroup>
+
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
     <PackageReference Include="xunit" Version="2.8.1" />

diff --git a/exercises/concept/beauty-salon-goes-global/BeautySalonGoesGlobalTests.cs b/exercises/concept/beauty-salon-goes-global/BeautySalonGoesGlobalTests.cs
@@ -1,9 +1,5 @@
-using System;
-using System.Collections.Generic;
 using System.Globalization;
-using System.Linq;
-using System.Threading;
-using Xunit;
+
 using Exercism.Tests;
 
 public class BeautySalonGoesGlobalTests

diff --git a/exercises/concept/bird-watcher/.meta/Exemplar.cs b/exercises/concept/bird-watcher/.meta/Exemplar.cs
@@ -1,5 +1,3 @@
-using System;
-
 class BirdCount
 {
     private int[] birdsPerDay;

diff --git a/exercises/concept/bird-watcher/BirdWatcher.cs b/exercises/concept/bird-watcher/BirdWatcher.cs
@@ -1,5 +1,3 @@
-using System;
-
 class BirdCount
 {
     private int[] birdsPerDay;

diff --git a/exercises/concept/bird-watcher/BirdWatcher.csproj b/exercises/concept/bird-watcher/BirdWatcher.csproj
@@ -3,9 +3,14 @@
   <PropertyGroup>
     <TargetFramework>net9.0</TargetFramework>
     <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
     <RestorePackagesWithLockFile>true</RestorePackagesWithLockFile>
   </PropertyGroup>
 
+  <ItemGroup>
+    <Using Include="Xunit" />
+  </ItemGroup>
+
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
     <PackageReference Include="xunit" Version="2.8.1" />

diff --git a/exercises/concept/bird-watcher/BirdWatcherTests.cs b/exercises/concept/bird-watcher/BirdWatcherTests.cs
@@ -1,4 +1,3 @@
-using Xunit;
 using Exercism.Tests;
 
 public class BirdWatcherTests

diff --git a/exercises/concept/booking-up-for-beauty/.meta/Exemplar.cs b/exercises/concept/booking-up-for-beauty/.meta/Exemplar.cs
@@ -1,5 +1,3 @@
-using System;
-
 static class Appointment
 {
     public static DateTime Schedule(string appointmentDateDescription)

diff --git a/exercises/concept/booking-up-for-beauty/BookingUpForBeauty.cs b/exercises/concept/booking-up-for-beauty/BookingUpForBeauty.cs
@@ -1,5 +1,3 @@
-using System;
-
 static class Appointment
 {
     public static DateTime Schedule(string appointmentDateDescription)

diff --git a/exercises/concept/booking-up-for-beauty/BookingUpForBeauty.csproj b/exercises/concept/booking-up-for-beauty/BookingUpForBeauty.csproj
@@ -3,9 +3,14 @@
   <PropertyGroup>
     <TargetFramework>net9.0</TargetFramework>
     <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
     <RestorePackagesWithLockFile>true</RestorePackagesWithLockFile>
   </PropertyGroup>
 
+  <ItemGroup>
+    <Using Include="Xunit" />
+  </ItemGroup>
+
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
     <PackageReference Include="xunit" Version="2.8.1" />

diff --git a/exercises/concept/booking-up-for-beauty/BookingUpForBeautyTests.cs b/exercises/concept/booking-up-for-beauty/BookingUpForBeautyTests.cs
@@ -1,8 +1,6 @@
-using Xunit;
 using Exercism.Tests;
-using System;
+
 using System.Globalization;
-using System.Threading;
 
 public class BookingUpForBeautyTests
 {

diff --git a/exercises/concept/building-telemetry/.meta/Exemplar.cs b/exercises/concept/building-telemetry/.meta/Exemplar.cs
@@ -1,6 +1,3 @@
-using System;
-
-
 public class RemoteControlCar
 {
     private int batteryPercentage = 100;

diff --git a/exercises/concept/building-telemetry/BuildingTelemetry.cs b/exercises/concept/building-telemetry/BuildingTelemetry.cs
@@ -1,5 +1,3 @@
-using System;
-
 public class RemoteControlCar
 {
     private int batteryPercentage = 100;

diff --git a/exercises/concept/building-telemetry/BuildingTelemetry.csproj b/exercises/concept/building-telemetry/BuildingTelemetry.csproj
@@ -3,9 +3,14 @@
   <PropertyGroup>
     <TargetFramework>net9.0</TargetFramework>
     <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
     <RestorePackagesWithLockFile>true</RestorePackagesWithLockFile>
   </PropertyGroup>
 
+  <ItemGroup>
+    <Using Include="Xunit" />
+  </ItemGroup>
+
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
     <PackageReference Include="xunit" Version="2.8.1" />

diff --git a/exercises/concept/building-telemetry/BuildingTelemetryTests.cs b/exercises/concept/building-telemetry/BuildingTelemetryTests.cs
@@ -1,4 +1,3 @@
-using Xunit;
 using Exercism.Tests;
 
 public class BuildingTelemetryTests

diff --git a/exercises/concept/calculator-conundrum/.meta/Exemplar.cs b/exercises/concept/calculator-conundrum/.meta/Exemplar.cs
@@ -1,5 +1,3 @@
-using System;
-
 public static class SimpleCalculator
 {
     public static string Calculate(int operand1, int operand2, string? operation)

diff --git a/exercises/concept/calculator-conundrum/CalculatorConundrum.cs b/exercises/concept/calculator-conundrum/CalculatorConundrum.cs
@@ -1,5 +1,3 @@
-using System;
-
 public static class SimpleCalculator
 {
     public static string Calculate(int operand1, int operand2, string? operation)

diff --git a/exercises/concept/calculator-conundrum/CalculatorConundrum.csproj b/exercises/concept/calculator-conundrum/CalculatorConundrum.csproj
@@ -3,9 +3,14 @@
   <PropertyGroup>
     <TargetFramework>net9.0</TargetFramework>
     <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
     <RestorePackagesWithLockFile>true</RestorePackagesWithLockFile>
   </PropertyGroup>
 
+  <ItemGroup>
+    <Using Include="Xunit" />
+  </ItemGroup>
+
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
     <PackageReference Include="xunit" Version="2.8.1" />

diff --git a/exercises/concept/calculator-conundrum/CalculatorConundrumTests.cs b/exercises/concept/calculator-conundrum/CalculatorConundrumTests.cs
@@ -1,6 +1,4 @@
-using Xunit;
 using Exercism.Tests;
-using System;
 
 public class CalculatorConundrumTests
 {

diff --git a/exercises/concept/cars-assemble/CarsAssemble.cs b/exercises/concept/cars-assemble/CarsAssemble.cs
@@ -1,5 +1,3 @@
-using System;
-
 static class AssemblyLine
 {
     public static double SuccessRate(int speed)

diff --git a/exercises/concept/cars-assemble/CarsAssemble.csproj b/exercises/concept/cars-assemble/CarsAssemble.csproj
@@ -3,9 +3,14 @@
   <PropertyGroup>
     <TargetFramework>net9.0</TargetFramework>
     <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
     <RestorePackagesWithLockFile>true</RestorePackagesWithLockFile>
   </PropertyGroup>
 
+  <ItemGroup>
+    <Using Include="Xunit" />
+  </ItemGroup>
+
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
     <PackageReference Include="xunit" Version="2.8.1" />

diff --git a/exercises/concept/cars-assemble/CarsAssembleTests.cs b/exercises/concept/cars-assemble/CarsAssembleTests.cs
@@ -1,4 +1,3 @@
-using Xunit;
 using Exercism.Tests;
 
 public class CarsAssembleTests

diff --git a/exercises/concept/developer-privileges/.meta/Exemplar.cs b/exercises/concept/developer-privileges/.meta/Exemplar.cs
@@ -1,6 +1,3 @@
-using System;
-using System.Collections.Generic;
-
 public class Authenticator
 {
     public Identity Admin { get; } = new Identity

diff --git a/exercises/concept/developer-privileges/DeveloperPrivileges.cs b/exercises/concept/developer-privileges/DeveloperPrivileges.cs
@@ -1,6 +1,3 @@
-using System;
-using System.Collections.Generic;
-
 public class Authenticator
 {
     // TODO: Implement the Authenticator.Admin property

diff --git a/exercises/concept/developer-privileges/DeveloperPrivileges.csproj b/exercises/concept/developer-privileges/DeveloperPrivileges.csproj
@@ -3,9 +3,14 @@
   <PropertyGroup>
     <TargetFramework>net9.0</TargetFramework>
     <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
     <RestorePackagesWithLockFile>true</RestorePackagesWithLockFile>
   </PropertyGroup>
 
+  <ItemGroup>
+    <Using Include="Xunit" />
+  </ItemGroup>
+
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
     <PackageReference Include="xunit" Version="2.8.1" />

diff --git a/exercises/concept/developer-privileges/DeveloperPrivilegesTests.cs b/exercises/concept/developer-privileges/DeveloperPrivilegesTests.cs
@@ -1,4 +1,3 @@
-using Xunit;
 using Exercism.Tests;
 
 public class DeveloperPrivilegesTests

diff --git a/exercises/concept/elons-toys/ElonsToys.cs b/exercises/concept/elons-toys/ElonsToys.cs
@@ -1,5 +1,3 @@
-using System;
-
 class RemoteControlCar
 {
     public static RemoteControlCar Buy()

diff --git a/exercises/concept/elons-toys/ElonsToys.csproj b/exercises/concept/elons-toys/ElonsToys.csproj
@@ -3,9 +3,14 @@
   <PropertyGroup>
     <TargetFramework>net9.0</TargetFramework>
     <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
     <RestorePackagesWithLockFile>true</RestorePackagesWithLockFile>
   </PropertyGroup>
 
+  <ItemGroup>
+    <Using Include="Xunit" />
+  </ItemGroup>
+
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
     <PackageReference Include="xunit" Version="2.8.1" />

diff --git a/exercises/concept/elons-toys/ElonsToysTests.cs b/exercises/concept/elons-toys/ElonsToysTests.cs
@@ -1,4 +1,3 @@
-using Xunit;
 using Exercism.Tests;
 
 public class ElonsToysTests

diff --git a/exercises/concept/faceid-2/.meta/Exemplar.cs b/exercises/concept/faceid-2/.meta/Exemplar.cs
@@ -1,6 +1,3 @@
-using System;
-using System.Collections.Generic;
-
 public class FacialFeatures
 {
     public string EyeColor { get; }

diff --git a/exercises/concept/faceid-2/Faceid2.cs b/exercises/concept/faceid-2/Faceid2.cs
@@ -1,5 +1,3 @@
-using System;
-
 public class FacialFeatures
 {
     public string EyeColor { get; }

diff --git a/exercises/concept/faceid-2/Faceid2.csproj b/exercises/concept/faceid-2/Faceid2.csproj
@@ -3,9 +3,14 @@
   <PropertyGroup>
     <TargetFramework>net9.0</TargetFramework>
     <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
     <RestorePackagesWithLockFile>true</RestorePackagesWithLockFile>
   </PropertyGroup>
 
+  <ItemGroup>
+    <Using Include="Xunit" />
+  </ItemGroup>
+
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
     <PackageReference Include="xunit" Version="2.8.1" />

diff --git a/exercises/concept/faceid-2/Faceid2Tests.cs b/exercises/concept/faceid-2/Faceid2Tests.cs
@@ -1,4 +1,3 @@
-using Xunit;
 using Exercism.Tests;
 
 public class Faceid2Tests