Adding unit tests

GameAuthApi.Tests/UserControllerTests.cs

@@ -0,0 +1,46 @@
+using GameAuthApi.Controllers;
+using GameAuthApi.Models;
+using GameAuthApi.Services;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.Extensions.Configuration;
+
+public class UserControllerTests
+{
+    [Fact]
+    public async Task GetAllUsers_ReturnsOk()
+    {
+        var users = new List<User>{ new User{ Username="u" } };
+        var config = new ConfigurationBuilder()
+            .AddInMemoryCollection(new Dictionary<string,string>
+            {
+                {"MongoDB:ConnectionString","mongodb://localhost"},
+                {"MongoDB:DatabaseName","test"}
+            }).Build();
+        var mockService = new Mock<UserService>(config);
+        mockService.Setup(s => s.GetAllAsync()).ReturnsAsync(users);
+        var controller = new UserController(mockService.Object);
+
+        var result = await controller.GetAllUsers();
+
+        var ok = Assert.IsType<OkObjectResult>(result);
+        Assert.Equal(users, ok.Value);
+    }
+
+    [Fact]
+    public async Task DeleteUser_NotFound()
+    {
+        var config = new ConfigurationBuilder()
+            .AddInMemoryCollection(new Dictionary<string,string>
+            {
+                {"MongoDB:ConnectionString","mongodb://localhost"},
+                {"MongoDB:DatabaseName","test"}
+            }).Build();
+        var mockService = new Mock<UserService>(config);
+        mockService.Setup(s => s.DeleteAsync("no")).ReturnsAsync(false);
+        var controller = new UserController(mockService.Object);
+
+        var result = await controller.DeleteUser("no");
+
+        Assert.IsType<NotFoundObjectResult>(result);
+    }
+}