tests(api): add integration test for happy path when logging in

src/FiscalOS.API/Login/Endpoint.cs

@@ -1,5 +1,3 @@
-using FiscalOS.Core.Authentication;
-
 namespace FiscalOS.API.Login;
 
 internal static class Endpoint

src/FiscalOS.API/Login/Response.cs

@@ -4,6 +4,12 @@ internal sealed record Response
 {
   public string AccessToken { get; init; }
 
+  [JsonConstructor]
+  private Response()
+  {
+    AccessToken = string.Empty;
+  }
+
   private Response(string accessToken)
   {
     AccessToken = accessToken;

src/FiscalOS.API/Usings.cs

@@ -1,6 +1,8 @@
 global using System.ComponentModel.DataAnnotations;
+global using System.Text.Json.Serialization;
 
 global using FiscalOS.API.Login;
+global using FiscalOS.Core.Authentication;
 global using FiscalOS.Infra.Data;
 global using FiscalOS.Infra.DependencyInjection;
 

src/FiscalOS.Infra/Data/AppDbContext.cs

@@ -1,5 +1,3 @@
-using FiscalOS.Core.Data;
-
 namespace FiscalOS.Infra.Data;
 
 public sealed class AppDbContext(IOptions<AppDbContextOptions> ctxOptions) : DbContext

src/FiscalOS.Infra/Usings.cs

@@ -4,6 +4,7 @@ global using System.Security.Cryptography;
 global using System.Text;
 
 global using FiscalOS.Core.Authentication;
+global using FiscalOS.Core.Data;
 global using FiscalOS.Core.Identity;
 global using FiscalOS.Infra.Authentication;
 global using FiscalOS.Infra.Data;

tests/FiscalOS.API.Tests/Infra/TestApi.cs

@@ -1,3 +1,7 @@
+using System.Security.Cryptography;
+
+using FiscalOS.Infra.Authentication;
+
 namespace FiscalOS.API.Tests.Infra;
 
 public class TestApi : WebApplicationFactory<Program>
@@ -10,12 +14,22 @@ public class TestApi : WebApplicationFactory<Program>
 
     builder.ConfigureTestServices(static c =>
     {
-      var opts = Options.Create(new AppDbContextOptions()
+      var dbOpts = Options.Create(new AppDbContextOptions()
       {
         DatabaseFilePath = $"{Guid.NewGuid()}.db",
       });
 
-      c.AddSingleton(opts);
+      c.AddSingleton(dbOpts);
+
+      var jwtOpts = Options.Create(new JwtOptions()
+      {
+        Issuer = "TestIssuer",
+        Audience = "TestAudience",
+        Secret = Convert.ToBase64String(RandomNumberGenerator.GetBytes(32)),
+        ExpiryInMinutes = 5,
+      });
+
+      c.AddSingleton(jwtOpts);
     });
   }
 }

tests/FiscalOS.API.Tests/Integration/LoginTests.cs

@@ -1,6 +1,3 @@
-using FiscalOS.Core.Authentication;
-using FiscalOS.Core.Identity;
-
 namespace FiscalOS.API.Tests.Integration;
 
 public class LoginTests(TestApi testApi) : IntegrationTest(testApi)
@@ -17,9 +14,6 @@ public class LoginTests(TestApi testApi) : IntegrationTest(testApi)
 
     var res = await Client.PostAsJsonAsync("/login", req, TestContext.Current.CancellationToken);
 
-    var content = await res.Content.ReadAsStringAsync(TestContext.Current.CancellationToken);
-    Console.WriteLine(content);
-
     res.StatusCode.Should().Be(HttpStatusCode.BadRequest);
 
     var problem = await res.Content.ReadFromJsonAsync<ValidationProblemDetails>(TestContext.Current.CancellationToken);
@@ -63,6 +57,38 @@ public class LoginTests(TestApi testApi) : IntegrationTest(testApi)
 
     res.StatusCode.Should().Be(HttpStatusCode.Unauthorized);
   }
+
+  [Fact]
+  public async Task Login_WhenUserExistsAndPasswordIsCorrect_ItShouldReturn200WithJwtToken()
+  {
+    await ExecuteDbContextAsync(static async (context, sp) =>
+    {
+      var passwordHasher = sp.GetRequiredService<IPasswordHasher>();
+
+      context.Add(User.From("Stevan", passwordHasher.Hash("@Password1")));
+
+      await context.SaveChangesAsync(TestContext.Current.CancellationToken);
+    });
+
+    var req = new
+    {
+      username = "Stevan",
+      password = "@Password1",
+    };
+
+    var res = await Client.PostAsJsonAsync("/login", req, TestContext.Current.CancellationToken);
+
+    res.StatusCode.Should().Be(HttpStatusCode.OK);
+
+
+    var content = await res.Content.ReadFromJsonAsync<Login.Response>(TestContext.Current.CancellationToken);
+
+    content!.AccessToken.Should().NotBeNullOrEmpty();
+
+    res.Headers.TryGetValues("Set-Cookie", out var cookies).Should().BeTrue();
+
+    cookies.Should().NotBeNull();
+  }
 }
 
 

tests/FiscalOS.API.Tests/Usings.cs

@@ -2,6 +2,8 @@ global using System.Net;
 global using System.Net.Http.Json;
 
 global using FiscalOS.API.Tests.Infra;
+global using FiscalOS.Core.Authentication;
+global using FiscalOS.Core.Identity;
 global using FiscalOS.Infra.Data;
 
 global using Microsoft.AspNetCore.Hosting;

tests/FiscalOS.Infra.Tests/Unit/TokenGeneratorTests.cs

@@ -1,6 +1,3 @@
-using System.Globalization;
-using System.Security.Cryptography;
-
 namespace FiscalOS.Infra.Tests.Unit;
 
 public class TokenGeneratorTests

tests/FiscalOS.Infra.Tests/Usings.cs

@@ -1,4 +1,7 @@
+global using System.Globalization;
 global using System.IdentityModel.Tokens.Jwt;
+global using System.Security.Cryptography;
+
 global using AwesomeAssertions.Primitives;
 
 global using FiscalOS.Core.Identity;