public void TestReadBlockHeader()
{
AnnoRDA.FileEntities.BlockHeader actual;
var data = new byte[] {
0xFF, 0xFF, 0xFF, // gibberish data before the block, will be skipped when reading
0x01, 0x00, 0x00, 0x00, // flags
0x42, 0x00, 0x00, 0x00, // number of files
0xB8, 0x22, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // compressed file headers size
0x60, 0x90, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // uncompressed file headers size
0xC7, 0x8A, 0xA9, 0x00, 0x00, 0x00, 0x00, 0x00, // next block offset
};
using (var reader = new ContainerFileLoaderReader(TestData.GetStream(data), false)) {
actual = reader.ReadBlockHeader(3);
}
var expected = new AnnoRDA.FileEntities.BlockHeader()
{
Offset = 3,
Flags = 1,
NumFiles = 66,
CompressedFileHeadersSize = 8888,
UncompressedFileHeadersSize = 36960,
NextBlockOffset = 11111111,
};
Assert.Equal(expected, actual);
}
public void TestReadInvalidBlockHeader()
{
var data = new byte[] { 0x00, 0x00, 0x00, 0x00, 0x42, 0x00, 0x00, 0x00, 0xB8, 0x22, 0x00, 0x00, 0x00, 0x00 };
System.Exception exception = Assert.Throws <AnnoRDA.FileFormatException>(() => {
using (var reader = new ContainerFileLoaderReader(TestData.GetStream(data), false)) {
reader.ReadBlockHeader(0);
}
});
Assert.Equal(new AnnoRDA.FileFormatException(AnnoRDA.FileFormatException.EntityType.BlockHeader, AnnoRDA.FileFormatException.Error.UnexpectedEndOfFile, 14), exception);
data = new byte[] { 0x00, 0x00, 0x00, 0x00, 0x42, 0x00, 0x00, 0x00, 0xB8, 0x22, 0x00, 0x00, 0x00, 0x00 };
exception = Assert.Throws <AnnoRDA.FileFormatException>(() => {
using (var reader = new ContainerFileLoaderReader(TestData.GetStream(data), false)) {
reader.ReadBlockHeader(data.Length);
}
});
Assert.Equal(new AnnoRDA.FileFormatException(AnnoRDA.FileFormatException.EntityType.BlockHeader, AnnoRDA.FileFormatException.Error.UnexpectedEndOfFile, data.Length), exception);
}
