Merge pull request #45 from GuardianPlatform/UnitTesting

Unit testing Pagination

Guardian.Backend/Guardian.Test.Unit/Persistence/GameControllerTests.cs

@@ -0,0 +1,117 @@
+using Microsoft.EntityFrameworkCore;
+using Guardian.Domain.Entities;
+using NUnit.Framework;
+using System.Threading.Tasks;
+using Guardian.Domain.Models;
+using System.Linq;
+using Guardian.Infrastructure.Database;
+using Guardian.Service.Features.Game.Queries;
+using System;
+
+namespace Guardian.Test.Unit.Persistence
+{
+
+    public class GameControllerTests
+    {
+
+        [Test]
+        public async Task PaginationTest_FirstPageThreeItems()
+        {
+               DbContextOptions<ApplicationDbContext> dbContextOptions = new DbContextOptionsBuilder<ApplicationDbContext>()
+                .UseInMemoryDatabase(databaseName: Guid.NewGuid().ToString())
+                .Options;
+        var context = new ApplicationDbContext(dbContextOptions);
+
+            context.Add(new Game { Name = "gra1", Description = "dsc1", Author = "aa1" });
+            context.Add(new Game { Name = "gra2", Description = "dsc2", Author = "aa2" });
+            context.Add(new Game { Name = "gra3", Description = "dsc3", Author = "aa3" });
+            context.Add(new Game { Name = "gra4", Description = "dsc4", Author = "aa4" });
+            context.SaveChanges();
+            const int MaxGamescount = 3;
+            var request = new GetAllGamesQuery()
+            {
+                Pagination = new PagiantionModel(0, MaxGamescount)
+            };
+
+            var service = new GetAllGamesQuery.GetAllGamesQueryHandler(context);
+
+            var result = await service.Handle(request, default);
+
+            Assert.AreEqual(MaxGamescount, result.Count());
+        }
+
+        [Test]
+        public async Task PaginationTest_SecondPageOneItem()
+        {
+            DbContextOptions<ApplicationDbContext> dbContextOptions = new DbContextOptionsBuilder<ApplicationDbContext>()
+             .UseInMemoryDatabase(databaseName: Guid.NewGuid().ToString())
+             .Options;
+            var context = new ApplicationDbContext(dbContextOptions);
+
+            context.Add(new Game { Name = "gra1", Description = "dsc1", Author = "aa1" });
+            context.Add(new Game { Name = "gra2", Description = "dsc2", Author = "aa2" });
+            context.Add(new Game { Name = "gra3", Description = "dsc3", Author = "aa3" });
+            context.Add(new Game { Name = "gra4", Description = "dsc4", Author = "aa4" });
+            context.SaveChanges();
+            const int MaxGamescount = 3;
+            var request = new GetAllGamesQuery()
+            {
+                Pagination = new PagiantionModel(1, MaxGamescount)
+            };
+
+            var service = new GetAllGamesQuery.GetAllGamesQueryHandler(context);
+
+            var result = await service.Handle(request, default);
+
+            Assert.AreEqual(1, result.Count());
+        }
+
+        [Test]
+        public async Task PaginationTest_OneItemFirstPage()
+        {
+            DbContextOptions<ApplicationDbContext> dbContextOptions = new DbContextOptionsBuilder<ApplicationDbContext>()
+             .UseInMemoryDatabase(databaseName: Guid.NewGuid().ToString())
+             .Options;
+            var context = new ApplicationDbContext(dbContextOptions);
+
+            context.Add(new Game { Name = "gra1", Description = "dsc1", Author = "aa1" });
+
+            context.SaveChanges();
+            const int MaxGamescount = 3;
+            var request = new GetAllGamesQuery()
+            {
+                Pagination = new PagiantionModel(0, MaxGamescount)
+            };
+
+            var service = new GetAllGamesQuery.GetAllGamesQueryHandler(context);
+
+            var result = await service.Handle(request, default);
+
+            Assert.AreEqual(1, result.Count());
+        }
+
+        [Test]
+        public async Task PaginationTest_OneItemSecondPage()
+        {
+            DbContextOptions<ApplicationDbContext> dbContextOptions = new DbContextOptionsBuilder<ApplicationDbContext>()
+             .UseInMemoryDatabase(databaseName: Guid.NewGuid().ToString())
+             .Options;
+            var context = new ApplicationDbContext(dbContextOptions);
+
+            context.Add(new Game { Name = "gra1", Description = "dsc1", Author = "aa1" });
+            context.SaveChanges();
+            const int MaxGamescount = 3;
+            var request = new GetAllGamesQuery()
+            {
+                Pagination = new PagiantionModel(1, MaxGamescount)
+            };
+
+            var service = new GetAllGamesQuery.GetAllGamesQueryHandler(context);
+
+            var result = await service.Handle(request, default);
+
+            Assert.AreEqual(0, result.Count());
+        }
+    }
+
+}