static unsafe void GetBoth <T>(LowWriter <T> lw, T s, out IEnumerable <byte> newtonsoft, out IEnumerable <byte> unsafeJson, int?minBuffer = null)
{
var ms = new MemoryStream();
int len;
using (var writer = new StreamWriter(ms, _utf8))
{
_serializer.Serialize(writer, s, typeof(string));
writer.Flush();
len = (int)ms.Position;
}
newtonsoft = ms.GetBuffer().Take(len);
if (minBuffer.HasValue && minBuffer.Value > len)
{
len = minBuffer.Value;
}
var mine = new byte[len];
fixed(byte *bs = mine)
{
var result = lw.Invoke(s, bs, len);
unsafeJson = result < 0 ? null : mine.Take(result);
}
}
static unsafe void Approve <T>(IEnumerable <T> values, LowWriter <T> writer, Action <StringBuilder, T> heading, int?minBuffer = null)
{
int failed = 0;
var sb = new StringBuilder();
foreach (var v in values)
{
sb.AppendLine();
sb.AppendLine();
heading(sb, v);
IEnumerable <byte> newtonsoft;
IEnumerable <byte> mine;
GetBoth(writer, v, out newtonsoft, out mine, minBuffer);
sb.AppendLine();
sb.AppendLine();
sb.AppendLine("## Newtonsoft");
Hex.Dump(sb, newtonsoft);
sb.AppendLine();
sb.AppendLine();
sb.AppendLine("## Cameronism.Json");
Hex.Dump(sb, mine);
sb.AppendLine();
sb.AppendLine();
bool equal = mine != null && Enumerable.SequenceEqual(newtonsoft, mine);
sb.AppendFormat("### Equal: {0}", equal);
if (mine != null)
{
int diff = IndexOfDiff(newtonsoft, mine);
if (diff != -1)
{
sb.AppendFormat("### Difference at: {0:x}", diff);
}
}
if (!equal)
{
failed++;
}
}
ApprovalTests.Approvals.Verify(sb.ToString());
Assert.True(failed == 0, String.Format("Look at the approval, {0} comparisons failed", failed));
}
