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using System;
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using System.Collections.Generic;
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using System.Data.SQLite;
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using System.IO;
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using System.Linq;
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using Microsoft.Extensions.Logging;
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using Microsoft.Extensions.Logging.Abstractions;
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using Microsoft.Extensions.Options;
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using Npgsql;
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using NUnit.Framework;
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using NzbDrone.Common.Extensions;
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using NzbDrone.Core.Configuration;
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using NzbDrone.Core.Datastore;
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using NzbDrone.Core.Datastore.Migration.Framework;
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using NzbDrone.Test.Common.Datastore;
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namespace NzbDrone.Core.Test.Framework
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{
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public abstract class DbTest<TSubject, TModel> : DbTest
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where TSubject : class
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where TModel : ModelBase, new()
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{
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private TSubject _subject;
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protected BasicRepository<TModel> Storage { get; private set; }
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protected IList<TModel> AllStoredModels => Storage.All().ToList();
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protected TModel StoredModel => Storage.All().Single();
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[SetUp]
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public void CoreTestSetup()
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{
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_subject = null;
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Storage = Mocker.Resolve<BasicRepository<TModel>>();
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}
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protected TSubject Subject
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{
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get
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{
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if (_subject == null)
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{
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_subject = Mocker.Resolve<TSubject>();
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}
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return _subject;
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}
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}
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}
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[Category("DbTest")]
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public abstract class DbTest : CoreTest
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{
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private ITestDatabase _db;
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private DatabaseType _databaseType;
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protected virtual MigrationType MigrationType => MigrationType.Main;
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protected ITestDatabase Db
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{
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get
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{
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if (_db == null)
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{
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throw new InvalidOperationException("Test object database doesn't exists. Make sure you call WithRealDb() if you intend to use an actual database.");
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}
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return _db;
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}
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}
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protected virtual ITestDatabase WithTestDb(MigrationContext migrationContext)
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{
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var database = CreateDatabase(migrationContext);
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Mocker.SetConstant(database);
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switch (MigrationType)
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{
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case MigrationType.Main:
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{
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var mainDb = new MainDatabase(database);
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Mocker.SetConstant<IMainDatabase>(mainDb);
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break;
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}
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case MigrationType.Log:
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{
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var logDb = new LogDatabase(database);
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Mocker.SetConstant<ILogDatabase>(logDb);
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break;
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}
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default:
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{
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throw new ArgumentException("Invalid MigrationType");
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}
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}
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var testDb = new TestDatabase(database);
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return testDb;
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}
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private IDatabase CreateDatabase(MigrationContext migrationContext)
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{
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if (_databaseType == DatabaseType.PostgreSQL)
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{
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CreatePostgresDb();
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}
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var factory = Mocker.Resolve<DbFactory>();
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// If a special migration test or log migration then create new
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if (migrationContext.BeforeMigration != null || _databaseType == DatabaseType.PostgreSQL)
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{
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return factory.Create(migrationContext);
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}
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return CreateSqliteDatabase(factory, migrationContext);
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}
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private void CreatePostgresDb()
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{
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var options = Mocker.Resolve<IOptions<PostgresOptions>>().Value;
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PostgresDatabase.Create(options, MigrationType);
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}
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private void DropPostgresDb()
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{
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var options = Mocker.Resolve<IOptions<PostgresOptions>>().Value;
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PostgresDatabase.Drop(options, MigrationType);
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}
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private IDatabase CreateSqliteDatabase(IDbFactory factory, MigrationContext migrationContext)
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{
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// Otherwise try to use a cached migrated db
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var cachedDb = SqliteDatabase.GetCachedDb(migrationContext.MigrationType);
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var testDb = GetTestSqliteDb(migrationContext.MigrationType);
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if (File.Exists(cachedDb))
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{
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TestLogger.Info($"Using cached initial database {cachedDb}");
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File.Copy(cachedDb, testDb);
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return factory.Create(migrationContext);
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}
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else
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{
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var db = factory.Create(migrationContext);
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GC.Collect();
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GC.WaitForPendingFinalizers();
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SQLiteConnection.ClearAllPools();
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TestLogger.Info("Caching database");
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File.Copy(testDb, cachedDb);
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return db;
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}
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}
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private string GetTestSqliteDb(MigrationType type)
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{
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return type == MigrationType.Main ? TestFolderInfo.GetDatabase() : TestFolderInfo.GetLogDatabase();
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}
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protected virtual void SetupLogging()
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{
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Mocker.SetConstant<ILoggerProvider>(NullLoggerProvider.Instance);
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}
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protected void SetupContainer()
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{
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WithTempAsAppPath();
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SetupLogging();
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// populate the possible postgres options
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var postgresOptions = PostgresDatabase.GetTestOptions();
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_databaseType = postgresOptions.Host.IsNotNullOrWhiteSpace() ? DatabaseType.PostgreSQL : DatabaseType.SQLite;
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// Set up remaining container services
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Mocker.SetConstant(Options.Create(postgresOptions));
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Mocker.SetConstant<IConfigFileProvider>(Mocker.Resolve<ConfigFileProvider>());
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Mocker.SetConstant<IConnectionStringFactory>(Mocker.Resolve<ConnectionStringFactory>());
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Mocker.SetConstant<IMigrationController>(Mocker.Resolve<MigrationController>());
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SqlBuilderExtensions.LogSql = true;
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}
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[SetUp]
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public virtual void SetupDb()
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{
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SetupContainer();
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_db = WithTestDb(new MigrationContext(MigrationType));
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}
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[TearDown]
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public void TearDown()
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{
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// Make sure there are no lingering connections. (When this happens it means we haven't disposed something properly)
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GC.Collect();
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GC.WaitForPendingFinalizers();
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SQLiteConnection.ClearAllPools();
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NpgsqlConnection.ClearAllPools();
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if (TestFolderInfo != null)
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{
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DeleteTempFolder(TestFolderInfo.AppDataFolder);
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}
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if (_databaseType == DatabaseType.PostgreSQL)
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{
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DropPostgresDb();
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}
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}
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}
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}
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