public void creates_new_root_partition_on_first_epoch()
{
var reader = new FakeReader(withoutRecords: true);
var writer = new FakeWriter();
IPartitionManager partitionManager = new PartitionManager(reader, writer, new LogV3RecordFactory());
partitionManager.Initialize();
Assert.Collection(writer.WrittenRecords,
r => {
Assert.Equal(LogRecordType.PartitionType, r.RecordType);
Assert.IsType <PartitionTypeLogRecord>(r);
Assert.Equal("Root", ((PartitionTypeLogRecord)r).Record.StringPayload);
Assert.Equal(partitionManager.RootTypeId, ((PartitionTypeLogRecord)r).Record.Header.RecordId);
Assert.Equal(Guid.Empty, ((PartitionTypeLogRecord)r).Record.SubHeader.PartitionId);
},
r => {
Assert.Equal(LogRecordType.Partition, r.RecordType);
Assert.IsType <PartitionLogRecord>(r);
Assert.Equal("Root", ((PartitionLogRecord)r).Record.StringPayload);
Assert.Equal(partitionManager.RootId, ((PartitionLogRecord)r).Record.Header.RecordId);
Assert.Equal(partitionManager.RootTypeId, ((PartitionLogRecord)r).Record.SubHeader.PartitionTypeId);
Assert.Equal(Guid.Empty, ((PartitionLogRecord)r).Record.SubHeader.ParentPartitionId);
});
Assert.True(writer.IsFlushed);
}
public void throws_on_unexpected_system_log_record_type()
{
var reader = new FakeReader(UnexpectedSystemLogRecord);
IPartitionManager partitionManager = new PartitionManager(reader, new FakeWriter(), new LogV3RecordFactory());
Assert.Throws <ArgumentOutOfRangeException>(() => partitionManager.Initialize());
}
public void reads_root_partition_only_once()
{
var reader = new FakeReader();
var writer = new FakeWriter();
IPartitionManager partitionManager = new PartitionManager(reader, writer, new LogV3RecordFactory());
partitionManager.Initialize();
partitionManager.Initialize();
Assert.Empty(writer.WrittenRecords);
Assert.Equal(2, reader.ReadCount);
}
public void configures_record_factory_with_root_partition_id()
{
var reader = new FakeReader();
var recordFactory = new LogV3RecordFactory();
IPartitionManager partitionManager = new PartitionManager(reader, new FakeWriter(), recordFactory);
partitionManager.Initialize();
var streamRecord = (LogV3StreamRecord)recordFactory.CreateStreamRecord(Guid.NewGuid(), 1, DateTime.UtcNow, 1, "stream-1");
Assert.Equal(partitionManager.RootId, streamRecord.Record.SubHeader.PartitionId);
}
public void reads_root_partition_once_initialized()
{
var rootPartitionId = Guid.NewGuid();
var rootPartitionTypeId = Guid.NewGuid();
var reader = new FakeReader(rootPartitionId, rootPartitionTypeId);
var writer = new FakeWriter();
IPartitionManager partitionManager = new PartitionManager(reader, writer, new LogV3RecordFactory());
partitionManager.Initialize();
Assert.Empty(writer.WrittenRecords);
Assert.Equal(rootPartitionId, partitionManager.RootId);
Assert.Equal(rootPartitionTypeId, partitionManager.RootTypeId);
}
public void creates_root_partition_in_case_it_partially_failed_previously()
{
var rootPartitionTypeId = Guid.NewGuid();
var reader = new FakeReader(rootPartitionId: null, rootPartitionTypeId);
var writer = new FakeWriter();
IPartitionManager partitionManager = new PartitionManager(reader, writer, new LogV3RecordFactory());
partitionManager.Initialize();
Assert.True(partitionManager.RootId.HasValue);
Assert.Equal(rootPartitionTypeId, partitionManager.RootTypeId);
Assert.Collection(writer.WrittenRecords,
r => {
Assert.Equal(LogRecordType.Partition, r.RecordType);
Assert.IsType <PartitionLogRecord>(r);
Assert.Equal("Root", ((PartitionLogRecord)r).Record.StringPayload);
Assert.Equal(partitionManager.RootId, ((PartitionLogRecord)r).Record.Header.RecordId);
Assert.Equal(partitionManager.RootTypeId, ((PartitionLogRecord)r).Record.SubHeader.PartitionTypeId);
Assert.Equal(Guid.Empty, ((PartitionLogRecord)r).Record.SubHeader.ParentPartitionId);
});
}