public void with_a_writer_checksum_of_zero_and_no_files_is_valid()
{
var validator = new TransactionFileDatabaseValidator(
new TransactionFileDatabaseConfig(PathName, "prefix.tf", 10000, new InMemoryCheckpoint(0), new List <ICheckpoint>()));
Assert.DoesNotThrow(validator.Validate);
}
public void with_a_writer_checksum_of_nonzero_and_no_files_a_corrupted_database_exception_is_thrown()
{
var validator =
new TransactionFileDatabaseValidator(
new TransactionFileDatabaseConfig(PathName, "prefix.tf", 10000, new InMemoryCheckpoint(500), new List <ICheckpoint>()));
Assert.Throws <CorruptDatabaseException>(validator.Validate);
}
public void with_not_enough_files_to_reach_checksum_throws()
{
var config = new TransactionFileDatabaseConfig(PathName, "prefix.tf", 10000, new InMemoryCheckpoint(15000), new List <ICheckpoint>());
File.WriteAllBytes(Path.Combine(PathName, config.FileNamingStrategy.GetFilenameFor(0)), new byte[10000]);
var validator = new TransactionFileDatabaseValidator(config);
Assert.Throws <CorruptDatabaseException>(validator.Validate);
}
public void allows_with_exactly_enough_file_to_reach_checksum()
{
var config = new TransactionFileDatabaseConfig(PathName, "prefix.tf", 10000, new InMemoryCheckpoint(10000),
new List <ICheckpoint>());
File.WriteAllBytes(Path.Combine(PathName, config.FileNamingStrategy.GetFilenameFor(0)), new byte[10000]);
var validator = new TransactionFileDatabaseValidator(config);
Assert.DoesNotThrow(validator.Validate);
}
public void with_file_of_wrong_size_higher_than_checksum_the_file_is_deleted()
{
var config = new TransactionFileDatabaseConfig(PathName, "prefix.tf", 10000, new InMemoryCheckpoint(500), new List <ICheckpoint>());
File.WriteAllText(Path.Combine(PathName, config.FileNamingStrategy.GetFilenameFor(0)), "this is just some test blahbydy blah");
var validator = new TransactionFileDatabaseValidator(config);
var ex = Assert.Throws <CorruptDatabaseException>(validator.Validate);
Assert.IsInstanceOf <BadChunkInDatabaseException>(ex.InnerException);
}
public void with_wrong_size_file_less_than_checksum_throws()
{
var config = new TransactionFileDatabaseConfig(PathName, "prefix.tf", 10000, new InMemoryCheckpoint(15000), new List <ICheckpoint>());
File.WriteAllBytes(Path.Combine(PathName, config.FileNamingStrategy.GetFilenameFor(0)), new byte[10000]);
File.WriteAllBytes(Path.Combine(PathName, config.FileNamingStrategy.GetFilenameFor(1)), new byte[9000]);
var validator = new TransactionFileDatabaseValidator(config);
var ex = Assert.Throws <CorruptDatabaseException>(validator.Validate);
Assert.IsInstanceOf <BadChunkInDatabaseException>(ex.InnerException);
}
public void when_in_brand_new_extraneous_files_throws_corrupt_database_exception()
{
var config = new TransactionFileDatabaseConfig(PathName, "prefix.tf", 10000, new InMemoryCheckpoint(0),
new List <ICheckpoint>());
File.WriteAllBytes(Path.Combine(PathName, config.FileNamingStrategy.GetFilenameFor(4)), new byte[10000]);
var validator = new TransactionFileDatabaseValidator(config);
var ex = Assert.Throws <CorruptDatabaseException>(validator.Validate);
Assert.IsInstanceOf <ExtraneousFileFoundException>(ex.InnerException);
}
public void when_a_reader_checksum_is_ahead_of_writer_checksum_throws_corrupt_database_exception()
{
var config = new TransactionFileDatabaseConfig(PathName, "prefix.tf", 10000, new InMemoryCheckpoint(0),
new List <ICheckpoint> {
new InMemoryCheckpoint(11)
});
File.WriteAllBytes(Path.Combine(PathName, config.FileNamingStrategy.GetFilenameFor(0)), new byte[10000]);
var validator = new TransactionFileDatabaseValidator(config);
var ex = Assert.Throws <CorruptDatabaseException>(validator.Validate);
Assert.IsInstanceOf <ReaderCheckpointHigherThanWriterException>(ex.InnerException);
}
