public void DetectTampering()
{
BlockChain bc = new BlockChain();
List <BlockChain.Entry> entries = new List <BlockChain.Entry>();
int count = 10;
for (int i = 0; i < count; ++i)
{
BlockChain.Entry e = new BlockChain.Entry(Guid.NewGuid().ToString());
entries.Add(e);
bc.AddEntry(e);
}
Tuple <bool, BlockChain.Entry> valid = bc.IsValid();
Assert.True(valid.Item1);
Assert.Null(valid.Item2);
entries[4].Data = Guid.NewGuid().ToString();
valid = bc.IsValid();
Assert.False(valid.Item1);
Assert.NotNull(valid.Item2);
}
public void BuildAnEntryOK()
{
BlockChain bc = new BlockChain();
Assert.Equal("0", bc.Head);
Assert.Empty(bc.Entries);
BlockChain.Entry e = new BlockChain.Entry("Test");
bc.AddEntry(e);
Assert.NotEqual("0", bc.Head);
Assert.Single(bc.Entries);
string t = JsonConvert.SerializeObject(bc);
Trace.WriteLine(t);
}
public void AddMultipleEntriesOK()
{
BlockChain bc = new BlockChain();
int count = 10;
for (int i = 0; i < count; ++i)
{
BlockChain.Entry e = new BlockChain.Entry(Guid.NewGuid().ToString());
bc.AddEntry(e);
}
Assert.NotEqual("0", bc.Head);
Assert.Equal(count, bc.Entries.Count);
Tuple <bool, BlockChain.Entry> valid = bc.IsValid();
Assert.True(valid.Item1);
Assert.Null(valid.Item2);
}