public ShapeFileHeader(WordLength fileWordLength, ShapeType shapeType, BoundingBox3D boundingBox)
{
FileLength = fileWordLength;
ShapeType = shapeType;
BoundingBox = boundingBox;
}
public void ExpandWithReturnsExpectedResult(BoundingBox3D sut, BoundingBox3D other, BoundingBox3D expected)
{
var result = sut.ExpandWith(other);
Assert.Equal(expected, result);
}
public void WriteManyHasExpectedResult()
{
var shapeType = _fixture.Create <ShapeType>();
var recordCount = _fixture.Create <ShapeRecordCount>();
var shapeRecords = GenerateManyRecords(shapeType, recordCount);
var length = shapeRecords.Aggregate(ShapeFileHeader.Length,
(result, current) => result.Plus(current.Length));
var boundingBox = shapeRecords.Aggregate(BoundingBox3D.Empty,
(result, current) =>
{
if (current.Content is PointShapeContent pointContent)
{
return(result.ExpandWith(BoundingBox3D.FromGeometry(pointContent.Shape)));
}
if (current.Content is PolyLineMShapeContent lineContent)
{
return(result.ExpandWith(BoundingBox3D.FromGeometry(lineContent.Shape)));
}
if (current.Content is PolygonShapeContent polygonShapeContent)
{
return(result.ExpandWith(BoundingBox3D.FromGeometry(polygonShapeContent.Shape)));
}
return(result);
});
var expectedHeader = new ShapeFileHeader(length, shapeType, boundingBox);
var expectedRecords = new ShapeIndexRecord[shapeRecords.Length];
var offset = ShapeIndexRecord.InitialOffset;
for (var index = 0; index < shapeRecords.Length; index++)
{
var shapeRecord = shapeRecords[index];
expectedRecords[index] = shapeRecord.IndexAt(offset);
offset = offset.Plus(shapeRecord.Length);
}
using (var stream = new MemoryStream())
{
using (var sut =
new ShapeIndexBinaryWriter(expectedHeader, new BinaryWriter(stream, Encoding.ASCII, true)))
{
//Act
sut.Write(expectedRecords);
}
// Assert
stream.Position = 0;
using (var reader = new BinaryReader(stream, Encoding.ASCII, true))
{
var actualHeader = ShapeFileHeader.Read(reader);
var actualRecords = new List <ShapeIndexRecord>();
while (reader.BaseStream.Position != reader.BaseStream.Length)
{
actualRecords.Add(ShapeIndexRecord.Read(reader));
}
Assert.Equal(expectedHeader, actualHeader);
Assert.Equal(expectedRecords, actualRecords, new ShapeIndexRecordEqualityComparer());
}
}
}
