Add unit tests for Builder pattern

BuilderPattern.Tests/BuilderPattern.Tests.csproj

@@ -0,0 +1,24 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+
+    <IsPackable>false</IsPackable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.1.0" />
+    <PackageReference Include="Moq" Version="4.18.2" />
+    <PackageReference Include="NUnit" Version="3.13.3" />
+    <PackageReference Include="NUnit3TestAdapter" Version="4.2.1" />
+    <PackageReference Include="NUnit.Analyzers" Version="3.3.0" />
+    <PackageReference Include="coverlet.collector" Version="3.1.2" />
+  </ItemGroup>
+
+  <ItemGroup>
+	<ProjectReference Include="..\BuilderPattern\BuilderPattern.csproj" />
+  </ItemGroup>
+
+</Project>

BuilderPattern.Tests/BuilderTests.cs

@@ -0,0 +1,78 @@
+namespace BuilderPattern.Tests
+{
+    [TestFixture]
+    public class BuilderTests
+    {
+        [TestCaseSource(nameof(_sizeCases))]
+        public void AddSize_TwoBuilderCases_ReturnsInstanceOfHamburgerClassWithFilledSize(IBuilder builder, int expected)
+        {
+            // Arrange, Act
+            builder.Reset();
+            builder.AddSize();
+            var hamburger = builder.Build();
+
+            // Assert
+            Assert.Multiple(() =>
+            {
+                Assert.That(hamburger.Size, Is.EqualTo(expected));
+                Assert.That(hamburger.Shape, Is.Null);
+                Assert.That(hamburger.Ingredients, Is.Null);
+            });
+        }
+
+        [TestCaseSource(nameof(_shapeCases))]
+        public void AddShape_TwoBuilderCases_ReturnsInstanceOfHamburgerClassWithFilledShape(IBuilder builder, string expected)
+        {
+            // Arrange, Act
+            builder.Reset();
+            builder.AddShape();
+            var hamburger = builder.Build();
+
+            // Assert
+            Assert.Multiple(() =>
+            {
+                Assert.That(hamburger.Size, Is.Zero);
+                Assert.That(hamburger.Shape, Is.EqualTo(expected));
+                Assert.That(hamburger.Ingredients, Is.Null);
+            });
+        }
+
+        [TestCaseSource(nameof(_ingredientsCases))]
+        public void AddIngredients_TwoBuilderCases_ReturnsInstanceOfHamburgerClassWithFilledIngredients(IBuilder builder, string[] expected)
+        {
+            // Arrange, Act
+            builder.Reset();
+            builder.AddIngredients();
+            var hamburger = builder.Build();
+
+            // Assert
+            Assert.Multiple(() =>
+            {
+                Assert.That(hamburger.Size, Is.Zero);
+                Assert.That(hamburger.Shape, Is.Null);
+                Assert.That(hamburger.Ingredients, Is.EquivalentTo(expected));
+            });
+        }
+
+        private static readonly List<TestCaseData> _sizeCases =
+           new(new[]
+           {
+                new TestCaseData(new MyHamburgerBuilder(), 10),
+                new TestCaseData(new WifesHamburgerBuilder(), 6)
+           });
+
+        private static readonly List<TestCaseData> _shapeCases =
+           new(new[]
+           {
+                new TestCaseData(new MyHamburgerBuilder(), "Kite"),
+                new TestCaseData(new WifesHamburgerBuilder(), "Cuboid")
+           });
+
+        private static readonly List<TestCaseData> _ingredientsCases =
+           new(new[]
+           {
+                new TestCaseData(new MyHamburgerBuilder(), new string[] { "Bread", "Meat", "Tomato", "Salad", "Mayonnaise" }),
+                new TestCaseData(new WifesHamburgerBuilder(), new string[] { "Bread", "Salad" })
+           });
+    }
+}

BuilderPattern.Tests/DirectorTests.cs

@@ -0,0 +1,41 @@
+using Moq;
+
+namespace BuilderPattern.Tests
+{
+    [TestFixture]
+    public class DirectorTests
+    {
+        private Cook _cook;
+        private Mock<IBuilder> _builder;
+
+        [OneTimeSetUp]
+        public void SetUp()
+        {
+            _builder = new Mock<IBuilder>();
+            _cook = new Cook(_builder.Object);
+        }
+
+        [Test]
+        public void ChangeBuilder_DeclareMyHamburgerBuilder_ReturnsHamburgerByWifesHamburgerBuilder()
+        {
+            // Arrange, Act
+            _cook.ChangeBuilder(new WifesHamburgerBuilder());
+
+            // Assert
+            _builder.Verify(s => s.Reset());
+        }
+
+        [Test]
+        public void Build_TwoBuilderCases_ReturnsFilledInstanceOfHamburgerClass()
+        {
+            // Arrange, Act
+            var actual = _cook.Build();
+
+            // Assert
+            _builder.Verify(s => s.AddIngredients());
+            _builder.Verify(s => s.AddShape());
+            _builder.Verify(s => s.AddSize());
+            _builder.Verify(s => s.Build());
+        }
+    }
+}

BuilderPattern.Tests/Usings.cs

@@ -0,0 +1 @@
+global using NUnit.Framework;

DesignPatternsDotNetCore.sln

@@ -1,6 +1,6 @@
 Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio Version 16
-VisualStudioVersion = 16.0.29920.165
+# Visual Studio Version 17
+VisualStudioVersion = 17.3.32825.248
 MinimumVisualStudioVersion = 15.0.26124.0
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "AdapterPattern", "AdapterPattern\AdapterPattern.csproj", "{79553F75-E8DC-4988-B511-A79CC6A9CDF7}"
 EndProject
@@ -38,7 +38,9 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "MediatorPattern", "Mediator
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "BuilderPattern", "BuilderPattern\BuilderPattern.csproj", "{274786D8-2E30-40D7-81B5-DFA3872CF9B6}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ProxyPattern", "ProxyPattern\ProxyPattern.csproj", "{0F8297F6-FA4F-44B6-BF99-0FF71ECCF87A}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ProxyPattern", "ProxyPattern\ProxyPattern.csproj", "{0F8297F6-FA4F-44B6-BF99-0FF71ECCF87A}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "BuilderPattern.Tests", "BuilderPattern.Tests\BuilderPattern.Tests.csproj", "{2B52592E-AA8A-4C2E-ADE8-BDA8942CDFFA}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -278,6 +280,18 @@ Global
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 		{0F8297F6-FA4F-44B6-BF99-0FF71ECCF87A}.Release|x86.Build.0 = Release|Any CPU
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+		{2B52592E-AA8A-4C2E-ADE8-BDA8942CDFFA}.Debug|x64.Build.0 = Debug|Any CPU
+		{2B52592E-AA8A-4C2E-ADE8-BDA8942CDFFA}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{2B52592E-AA8A-4C2E-ADE8-BDA8942CDFFA}.Debug|x86.Build.0 = Debug|Any CPU
+		{2B52592E-AA8A-4C2E-ADE8-BDA8942CDFFA}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{2B52592E-AA8A-4C2E-ADE8-BDA8942CDFFA}.Release|Any CPU.Build.0 = Release|Any CPU
+		{2B52592E-AA8A-4C2E-ADE8-BDA8942CDFFA}.Release|x64.ActiveCfg = Release|Any CPU
+		{2B52592E-AA8A-4C2E-ADE8-BDA8942CDFFA}.Release|x64.Build.0 = Release|Any CPU
+		{2B52592E-AA8A-4C2E-ADE8-BDA8942CDFFA}.Release|x86.ActiveCfg = Release|Any CPU
+		{2B52592E-AA8A-4C2E-ADE8-BDA8942CDFFA}.Release|x86.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE