public void WhenMessageIsLong_ThenSplitItToChunks()
{
byte[] giwenData = new byte[100000];
var idGenerator = new Mock <IMessageIdGenerator>();
var messageId = _fixture.CreateMany <byte>(8).ToArray();
idGenerator.Setup(c => c.GenerateMessageId(giwenData)).Returns(messageId);
_resolver.Setup(c => c.Resolve(_settings.MessageIdGeneratorType))
.Returns(idGenerator.Object);
var target = new DataToChunkConverter(_settings, _resolver.Object);
var actual = target.ConvertToChunks(giwenData);
Assert.True(actual.Count == 13);
for (int i = 0; i < actual.Count; i++)
{
actual[i].Take(2).ToArray().Should().BeEquivalentTo(new[] { 0x1e, 0x0f });
actual[i].Skip(2).Take(8).ToArray().Should().BeEquivalentTo(messageId);
actual[i].Skip(10).Take(1).First().Should().Be((byte)i);
actual[i].Skip(11).Take(1).First().Should().Be(13);
Assert.True(actual[i].Skip(12).All(c => c == 0));
}
}
public void WhenChunksWasTooMany_ThenThrowsException()
{
byte[] giwenData = new byte[10000000];
var target = new DataToChunkConverter(_settings, _resolver.Object);
Assert.Throws <ArgumentException>(() => target.ConvertToChunks(giwenData));
}
public void WhenConvertToChunkWithSmallData_ThenReturnsOneChunk()
{
var target = new DataToChunkConverter(_settings, _resolver.Object);
byte[] giwenData = _fixture.CreateMany <byte>(1000).ToArray();
IList <byte[]> actual = target.ConvertToChunks(giwenData);
var expected = new List <byte[]>()
{
giwenData
};
actual.Should().BeEquivalentTo(expected);
}