private static async Task Creates_physical_database_but_not_tables_test(bool async)
        {
            using (var testDatabase = SqlServerTestStore.CreateScratch(createDatabase: false))
            {
                var creator = SqlServerDatabaseCreatorTest.GetDatabaseCreator(testDatabase);

                Assert.False(creator.Exists());

                if (async)
                {
                    await creator.CreateAsync();
                }
                else
                {
                    creator.Create();
                }

                Assert.True(creator.Exists());

                if (testDatabase.Connection.State != ConnectionState.Open)
                {
                    await testDatabase.Connection.OpenAsync();
                }

                Assert.Equal(0, (await testDatabase.QueryAsync <string>(
                                     "SELECT TABLE_NAME FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_TYPE = 'BASE TABLE'")).Count());

                Assert.True(
                    await testDatabase.ExecuteScalarAsync <bool>(
                        string.Concat(
                            "SELECT is_read_committed_snapshot_on FROM sys.databases WHERE name='",
                            testDatabase.Connection.Database,
                            "'")));
            }
        }
 private static async Task Returns_false_when_database_exists_but_has_no_tables_test(bool async)
 {
     using (var testDatabase = SqlServerTestStore.CreateScratch())
     {
         var creator = SqlServerDatabaseCreatorTest.GetDatabaseCreator(testDatabase);
         Assert.False(async ? await creator.HasTablesAsyncBase() : creator.HasTablesBase());
     }
 }
        private static async Task Returns_true_when_database_exists_and_has_any_tables_test(bool async)
        {
            using (var testDatabase = SqlServerTestStore.CreateScratch())
            {
                await testDatabase.ExecuteNonQueryAsync("CREATE TABLE SomeTable (Id uniqueidentifier)");

                var creator = SqlServerDatabaseCreatorTest.GetDatabaseCreator(testDatabase);
                Assert.True(async ? await creator.HasTablesAsyncBase() : creator.HasTablesBase());
            }
        }
        public void Throws_when_no_initial_catalog()
        {
            var connectionStringBuilder = new SqlConnectionStringBuilder(TestEnvironment.DefaultConnection);

            connectionStringBuilder.Remove("Initial Catalog");

            var creator = SqlServerDatabaseCreatorTest.GetDatabaseCreator(connectionStringBuilder.ToString());

            var ex = Assert.Throws <InvalidOperationException>(() => creator.Delete());

            Assert.Equal(SqlServerStrings.NoInitialCatalog, ex.Message);
        }
        private static async Task Throws_if_database_already_exists_test(bool async)
        {
            using (var testDatabase = SqlServerTestStore.CreateScratch())
            {
                var creator = SqlServerDatabaseCreatorTest.GetDatabaseCreator(testDatabase);

                var ex = async
                    ? await Assert.ThrowsAsync <SqlException>(() => creator.CreateAsync())
                    : Assert.Throws <SqlException>(() => creator.Create());

                Assert.Equal(
                    1801, // Database with given name already exists
                    ex.Number);
            }
        }
        private static async Task Throws_when_database_does_not_exist_test(bool async)
        {
            using (var testDatabase = SqlServerTestStore.CreateScratch(createDatabase: false))
            {
                var creator = SqlServerDatabaseCreatorTest.GetDatabaseCreator(testDatabase);

                if (async)
                {
                    await Assert.ThrowsAsync <SqlException>(() => creator.DeleteAsync());
                }
                else
                {
                    Assert.Throws <SqlException>(() => creator.Delete());
                }
            }
        }
        private static async Task Creates_schema_in_existing_database_test(bool async)
        {
            using (var testDatabase = SqlServerTestStore.CreateScratch())
            {
                using (var context = new SqlServerDatabaseCreatorTest.BloggingContext(testDatabase))
                {
                    var creator = SqlServerDatabaseCreatorTest.GetDatabaseCreator(context);

                    if (async)
                    {
                        await creator.CreateTablesAsync();
                    }
                    else
                    {
                        creator.CreateTables();
                    }

                    if (testDatabase.Connection.State != ConnectionState.Open)
                    {
                        await testDatabase.Connection.OpenAsync();
                    }

                    var tables = (await testDatabase.QueryAsync <string>(
                                      "SELECT TABLE_NAME FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_TYPE = 'BASE TABLE'")).ToList();
                    Assert.Equal(1, tables.Count);
                    Assert.Equal("Blogs", tables.Single());

                    var columns = (await testDatabase.QueryAsync <string>(
                                       "SELECT TABLE_NAME + '.' + COLUMN_NAME FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = 'Blogs'")).ToList();
                    Assert.Equal(14, columns.Count);
                    Assert.True(columns.Any(c => c == "Blogs.Key1"));
                    Assert.True(columns.Any(c => c == "Blogs.Key2"));
                    Assert.True(columns.Any(c => c == "Blogs.Cheese"));
                    Assert.True(columns.Any(c => c == "Blogs.ErMilan"));
                    Assert.True(columns.Any(c => c == "Blogs.George"));
                    Assert.True(columns.Any(c => c == "Blogs.TheGu"));
                    Assert.True(columns.Any(c => c == "Blogs.NotFigTime"));
                    Assert.True(columns.Any(c => c == "Blogs.ToEat"));
                    Assert.True(columns.Any(c => c == "Blogs.OrNothing"));
                    Assert.True(columns.Any(c => c == "Blogs.Fuse"));
                    Assert.True(columns.Any(c => c == "Blogs.WayRound"));
                    Assert.True(columns.Any(c => c == "Blogs.On"));
                    Assert.True(columns.Any(c => c == "Blogs.AndChew"));
                    Assert.True(columns.Any(c => c == "Blogs.AndRow"));
                }
            }
        }
        private static async Task Throws_if_database_does_not_exist_test(bool async)
        {
            using (var testDatabase = SqlServerTestStore.CreateScratch(createDatabase: false))
            {
                var creator = SqlServerDatabaseCreatorTest.GetDatabaseCreator(testDatabase);

                var errorNumber
                    = async
                        ? (await Assert.ThrowsAsync <SqlException>(() => creator.CreateTablesAsync())).Number
                        : Assert.Throws <SqlException>(() => creator.CreateTables()).Number;

                if (errorNumber != 233) // skip if no-process transient failure
                {
                    Assert.Equal(
                        4060, // Login failed error number
                        errorNumber);
                }
            }
        }
        private static async Task Deletes_database_test(bool async)
        {
            using (var testDatabase = SqlServerTestStore.CreateScratch())
            {
                testDatabase.Connection.Close();

                var creator = SqlServerDatabaseCreatorTest.GetDatabaseCreator(testDatabase);

                Assert.True(async ? await creator.ExistsAsync() : creator.Exists());

                if (async)
                {
                    await creator.DeleteAsync();
                }
                else
                {
                    creator.Delete();
                }

                Assert.False(async ? await creator.ExistsAsync() : creator.Exists());
            }
        }
        private static async Task Throws_when_database_does_not_exist_test(bool async)
        {
            using (var testDatabase = SqlServerTestStore.CreateScratch(createDatabase: false))
            {
                var databaseCreator = SqlServerDatabaseCreatorTest.GetDatabaseCreator(testDatabase);
                await databaseCreator.ExecutionStrategyFactory.Create().ExecuteAsync(
                    databaseCreator,
                    async creator =>
                {
                    var errorNumber = async
                                ? (await Assert.ThrowsAsync <SqlException>(() => creator.HasTablesAsyncBase())).Number
                                : Assert.Throws <SqlException>(() => creator.HasTablesBase()).Number;

                    if (errorNumber != 233)         // skip if no-process transient failure
                    {
                        Assert.Equal(
                            4060,         // Login failed error number
                            errorNumber);
                    }
                });
            }
        }