LOL/Sources/TestUnitaire/TestEfLol.cs

using EFLol;
using Microsoft.Data.Sqlite;
using Microsoft.EntityFrameworkCore;

namespace TestUnitaire
{
	public class TestEfLol
	{
		[Fact]
		public async Task TestAddInMemory()
		{
			// Arrange
			var connection = new SqliteConnection("DataSource=:memory:");
			connection.Open();

			var options = new DbContextOptionsBuilder<ChampionContext>()
				.UseSqlite(connection)
				.Options;

			// Act
			using (var context = new ChampionContext(options))
			{
				await context.Database.EnsureCreatedAsync();
				var Zeus = new ChampionEntity
				{
					Name = "Zeus",
					Bio = "Zeus is the king of the gods."
				};
				var Poseidon = new ChampionEntity
				{
					Name = "Poseidon",
					Bio = "Poseidon is the king of the sea."
				};

				ChampionEntity found = await context.Champions.SingleOrDefaultAsync(c => c.Name == "Zeus");
				Assert.Null(found);

				await context.Champions.AddAsync(Zeus);
				await context.Champions.AddAsync(Poseidon);
				await context.SaveChangesAsync();

				found = await context.Champions.SingleOrDefaultAsync(c => c.Name == "Zeus");
				Assert.NotNull(found);

				Assert.Equal(2, await context.Champions.CountAsync());
				Assert.Equal("Zeus", found.Name);
			}
		}

		[Fact]
		public void ModifyTestInMemory()
		{
			var options = new DbContextOptionsBuilder<ChampionContext>()
				.UseInMemoryDatabase(databaseName: "Modify_Test_database")
				.Options;

			//prepares the database with one instance of the context

			using (var context = new ChampionContext(options))
			{
				ChampionEntity chewie = new ChampionEntity { Name = "Chewbacca", Bio = "Zeus is the king of the gods." };
				ChampionEntity yoda = new ChampionEntity { Name = "Yoda", Bio = "Zeus is the king of the gods." };
				ChampionEntity ewok = new ChampionEntity { Name = "Ewok", Bio = "Zeus is the king of the gods." };

				context.Champions.Add(chewie);
				context.Champions.Add(yoda);
				context.Champions.Add(ewok);
				context.SaveChanges();
			}

			//prepares the database with one instance of the context
			using (var context = new ChampionContext(options))
			{
				string nameToFind = "ew";
				Assert.Equal(2, context.Champions.Where(n => n.Name.ToLower().Contains(nameToFind)).Count());
				nameToFind = "ewo";
				Assert.Equal(1, context.Champions.Where(n => n.Name.ToLower().Contains(nameToFind)).Count());
				var ewok = context.Champions.Where(n => n.Name.ToLower().Contains(nameToFind)).First();
				ewok.Name = "Wicket";
				context.SaveChanges();
			}

			//prepares the database with one instance of the context
			using (var context = new ChampionContext(options))
			{
				string nameToFind = "ew";
				Assert.Equal(1, context.Champions.Where(n => n.Name.ToLower().Contains(nameToFind)).Count());
				nameToFind = "wick";
				Assert.Equal(1, context.Champions.Where(n => n.Name.ToLower().Contains(nameToFind)).Count());
			}
		}
	}
}