add integration tests

server.integrationTests/CharactersEndpointsTests.cs

@@ -0,0 +1,38 @@
+using Microsoft.AspNetCore.Mvc.Testing;
+using server.Models;
+using System.Net;
+using System.Text.Json;
+
+namespace server.integrationTests
+{
+    [TestClass]
+    public class CharacterEndpointsTests
+    {
+        private readonly HttpClient _httpClient;
+        private readonly JsonSerializerOptions _serializerOptions;
+        public TestContext? TestContext { get; set; }
+
+        public CharacterEndpointsTests()
+        {
+            var webAppFactory = new WebApplicationFactory<Program>();
+
+            _httpClient = webAppFactory.CreateDefaultClient();
+
+            _serializerOptions = new JsonSerializerOptions
+            {
+                PropertyNameCaseInsensitive = true
+            };
+        }
+
+        [TestMethod]
+        public async Task GetCharacters_AllCharacters_Returns200StatusWithCharacters()
+        {
+            var response = await _httpClient.GetAsync("/api/characters");
+            var data = await response.Content.ReadAsStringAsync();
+            var characters = JsonSerializer.Deserialize<List<Character>>(data, _serializerOptions);
+            
+            Assert.IsNotNull(characters);
+            Assert.AreEqual(HttpStatusCode.OK, response.StatusCode);
+        }
+    }
+}

server.integrationTests/Usings.cs

@@ -0,0 +1 @@
+global using Microsoft.VisualStudio.TestTools.UnitTesting;

server.integrationTests/server.integrationTests.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+	<PropertyGroup>
+		<TargetFramework>net6.0</TargetFramework>
+		<ImplicitUsings>enable</ImplicitUsings>
+		<Nullable>enable</Nullable>
+
+		<IsPackable>false</IsPackable>
+	</PropertyGroup>
+
+	<ItemGroup>
+		<PackageReference Include="Microsoft.AspNetCore.Mvc.Testing" Version="6.0.6" />
+		<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.1.0" />
+		<PackageReference Include="MSTest.TestAdapter" Version="2.2.8" />
+		<PackageReference Include="MSTest.TestFramework" Version="2.2.8" />
+		<PackageReference Include="coverlet.collector" Version="3.1.2" />
+	</ItemGroup>
+
+	<ItemGroup>
+		<ProjectReference Include="..\server\server.csproj" />
+	</ItemGroup>
+
+</Project>