public async Task QueueBackgroundDiagnosticsEventsTablePurge_PurgesTables()
{
IEnvironment testEnvironment = new TestEnvironment();
testEnvironment.SetEnvironmentVariable(EnvironmentSettingNames.AzureWebsitePlaceholderMode, "0");
DiagnosticEventTableStorageRepository repository =
new DiagnosticEventTableStorageRepository(_configuration, _hostIdProvider, testEnvironment, _logger);
// delete any existing non-current diagnostics events tables
string tablePrefix = DiagnosticEventTableStorageRepository.TableNamePrefix;
var currentTable = repository.GetDiagnosticEventsTable();
var tables = await TableStorageHelpers.ListOldTablesAsync(currentTable, repository.TableClient, tablePrefix);
foreach (var table in tables)
{
await table.DeleteIfExistsAsync();
}
// create 3 old tables
for (int i = 0; i < 3; i++)
{
var table = repository.TableClient.GetTableReference($"{tablePrefix}Test{i}");
await TableStorageHelpers.CreateIfNotExistsAsync(table, 2);
}
// verify tables were created
tables = await TableStorageHelpers.ListOldTablesAsync(currentTable, repository.TableClient, tablePrefix);
Assert.Equal(3, tables.Count());
// queue the background purge
TableStorageHelpers.QueueBackgroundTablePurge(currentTable, repository.TableClient, tablePrefix, NullLogger.Instance, 0);
// wait for the purge to complete
await TestHelpers.Await(async() =>
{
tables = await TableStorageHelpers.ListOldTablesAsync(currentTable, repository.TableClient, tablePrefix);
return(tables.Count() == 0);
}, timeout : 5000);
}