public void CanBuildSir0()
{
// Arrange
var builder = new Sir0Builder(8);
var testData = new int[] { 1, 2, 3, 7, 11, 13 };
// Act
var pointers = new List <long>();
foreach (var value in testData)
{
pointers.Add(builder.Length);
builder.WriteInt32(builder.Length, value);
}
builder.SubHeaderOffset = builder.Length;
builder.WriteInt32(builder.Length, pointers.Count);
foreach (var pointer in pointers)
{
builder.WritePointer(builder.Length, pointer);
}
var sir0 = builder.Build();
// Assert
sir0.Data.Length.Should().BeGreaterThan(
0x20 // Header
+ (testData.Length * 4) // The integers from testData
+ (testData.Length * 8) // Pointers to each integer
+ (testData.Length)); // Minimum footer size. Testing the size of the footer is outside the scope of this test, but is covered by checking each pointer later
sir0.PointerOffsets[0].Should().Be(8); // Index of the subheader pointer
sir0.PointerOffsets[1].Should().Be(16); // Index of the footer pointer
var entryCount = sir0.SubHeader.ReadInt32(0);
entryCount.Should().Be(testData.Length);
for (int i = 0; i < entryCount; i++)
{
var entryPointerOffset = sir0.SubHeaderOffset + 4 + i * 8;
sir0.PointerOffsets[i + 2].Should().Be(entryPointerOffset);
var entryPointer = sir0.SubHeader.ReadInt64(4 + i * 8);
var entryPointerFromAbsolute = sir0.Data.ReadInt64(sir0.SubHeaderOffset + 4 + i * 8);
entryPointerFromAbsolute.Should().Be(entryPointer);
var entry = sir0.Data.ReadInt32(entryPointer);
entry.Should().Be(testData[i]);
}
}
public Sir0 ToSir0()
{
var sir0 = new Sir0Builder(8);
void align(int length)
{
var paddingLength = length - (sir0.Length % length);
if (paddingLength != length)
{
sir0.WritePadding(sir0.Length, paddingLength);
}
}
var allStringValues = Strings.Values.SelectMany(strList => strList).ToArray();
// Ensure that the order in the generated message.bin matches the original if possible
var orderedStrings = allStringValues.OrderBy(str => str.Hash).ToArray();
foreach (var entry in orderedStrings)
{
entry.StringOffset = sir0.Length;
sir0.WriteNullTerminatedString(sir0.Length, Encoding.Unicode, entry.Value);
}
align(8);
int entriesOffset = sir0.Length;
foreach (var entry in allStringValues)
{
sir0.MarkPointer(sir0.Length);
sir0.WriteInt64(sir0.Length, entry.StringOffset);
sir0.WriteInt32(sir0.Length, entry.Hash);
sir0.WriteInt32(sir0.Length, entry.Unknown);
}
sir0.SubHeaderOffset = sir0.Length;
sir0.WriteInt32(sir0.Length, Strings.Count);
sir0.WriteInt32(sir0.Length, Strings.Count);
sir0.MarkPointer(sir0.Length);
sir0.WriteInt64(sir0.Length, entriesOffset);
return(sir0.Build());
}