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MyOffice.Tests/Data/DemoDataSeederTests.cs

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+using Microsoft.Data.Sqlite;
+using Microsoft.EntityFrameworkCore;
+using MyOffice.DbContext;
+
+namespace MyOffice.Tests.Data;
+
+public class DemoDataSeederTests
+{
+	[Fact]
+	public async Task SeedIfEmpty_creates_demo_users_catalog_and_motions()
+	{
+		var path = Path.Combine(Path.GetTempPath(), $"myoffice-seed-{Guid.NewGuid():N}.db");
+		var connection = new ConnectionConfiguration("sqlite", $"Data Source={path}");
+		var options = new DbContextOptionsBuilder<AppDbContext>();
+		DbContextServiceCollectionExtensions.ConfigureDbContextOptions(options, connection);
+
+		await using (var db = new AppDbContext(AppDbContextProvidersEnum.sqlite, options.Options))
+		{
+			await DatabaseBootstrapper.InitializeAsync(db);
+
+			Assert.Equal(3, await db.Users.CountAsync());
+			Assert.Equal(9, await db.Currencies.CountAsync());
+			Assert.Equal(9, await db.CurrencyRates.CountAsync());
+			Assert.Equal(9, await db.AccountCategories.CountAsync());
+			Assert.Equal(27, await db.Accounts.CountAsync());
+			Assert.Equal(300, await db.Motions.CountAsync());
+
+			var uahUser = await db.Users.SingleAsync(x => x.Email == "user_UAH@user_UAH.userUAH");
+			Assert.Equal("UAH", uahUser.CurrencyId);
+
+			var uahRates = await db.CurrencyRates
+				.Include(x => x.Currency)
+				.Where(x => x.Currency!.UserId == uahUser.Id)
+				.ToListAsync();
+			Assert.Equal(1m, uahRates.Single(x => x.Currency!.CurrencyGlobalId == "UAH").Rate);
+			Assert.Equal(42m, uahRates.Single(x => x.Currency!.CurrencyGlobalId == "USD").Rate);
+			Assert.Equal(50m, uahRates.Single(x => x.Currency!.CurrencyGlobalId == "EUR").Rate);
+
+			Assert.Contains(await db.AccountCategories.Where(x => x.UserId == uahUser.Id).Select(x => x.Name).ToListAsync(),
+				x => x == "Готівка");
+			Assert.Contains(await db.ItemCategories.Where(x => x.UserId == uahUser.Id).Select(x => x.Name).ToListAsync(),
+				x => x == "Доходи");
+
+			await DemoDataSeeder.SeedIfEmptyAsync(db);
+			Assert.Equal(3, await db.Users.CountAsync());
+		}
+
+		SqliteConnection.ClearAllPools();
+		if (File.Exists(path))
+		{
+			File.Delete(path);
+		}
+	}
+}