public void NextReturnsExpectedValue(int value, int expected)
{
var sut = new RecordNumber(value);
var result = sut.Next();
Assert.Equal(new RecordNumber(expected), result);
}
public DbaseRecordEnumerator(DbaseFileHeader header, BinaryReader reader)
{
_header = header ?? throw new ArgumentNullException(nameof(header));
_reader = reader ?? throw new ArgumentNullException(nameof(reader));
_current = null;
_state = State.Initial;
_number = RecordNumber.Initial;
}
public void ToStringReturnsExpectedValue()
{
var value = _fixture.Create <int>().AsRecordNumberValue();
var sut = new RecordNumber(value);
var result = sut.ToString();
Assert.Equal(value.ToString(), result);
}
public void Write(BinaryWriter writer)
{
if (writer == null)
{
throw new ArgumentNullException(nameof(writer));
}
writer.WriteInt32BigEndian(RecordNumber.ToInt32());
writer.WriteInt32BigEndian(ContentLength.ToInt32());
}
public static ShapeRecordHeader Read(BinaryReader reader)
{
if (reader == null)
{
throw new ArgumentNullException(nameof(reader));
}
var recordNumber = new RecordNumber(reader.ReadInt32BigEndian());
var contentLength = new WordLength(reader.ReadInt32BigEndian());
return(new ShapeRecordHeader(recordNumber, contentLength));
}
public bool MoveNext()
{
if (_state == State.Ended)
{
return(false);
}
if (_state == State.Initial)
{
_state = State.Started;
}
else
{
if (_header.RecordCount == _number)
{
_current = null;
_state = State.Ended;
return(false);
}
_number = _number.Next();
}
try
{
var record = new TDbaseRecord();
if (record.TryRead(_reader))
{
_current = record;
}
else
{
_current = null;
_state = State.Ended;
}
}
catch (Exception)
{
_current = null;
_state = State.Ended;
throw;
}
return(_state == State.Started);
}
public ShapeRecord RecordAs(RecordNumber number)
{
return(new ShapeRecord(new ShapeRecordHeader(number, ContentLength), this));
}
public void NextOfIntMaxValueThrows()
{
var sut = new RecordNumber(int.MaxValue);
Assert.Throws <InvalidOperationException>(() => sut.Next());
}
public int CompareTo(RecordNumber other)
{
return(_value.CompareTo(other.ToInt32()));
}
public bool Equals(RecordNumber other) => _value.Equals(other.ToInt32());
public ShapeRecordHeader(RecordNumber recordNumber, WordLength contentLength)
{
RecordNumber = recordNumber;
ContentLength = contentLength;
}
public override int GetHashCode() => RecordNumber.GetHashCode() ^ ContentLength.GetHashCode();
public bool Equals(ShapeRecordHeader other) => other != null && RecordNumber.Equals(other.RecordNumber) && ContentLength.Equals(other.ContentLength);
