/// <summary>
/// Verifies that all methods of the two S2Shapes return identical results,
/// except for id() and type_tag().
/// </summary>
public static void ExpectEqual(S2Shape a, S2Shape b)
{
Assert.True(a.NumEdges() == b.NumEdges());
for (int i = 0; i < a.NumEdges(); ++i)
{
Assert.Equal(a.GetEdge(i), b.GetEdge(i));
Assert.True(a.GetChainPosition(i) == b.GetChainPosition(i));
}
Assert.True(a.Dimension() == b.Dimension());
Assert.True(a.GetReferencePoint() == b.GetReferencePoint());
Assert.True(a.NumChains() == b.NumChains());
for (int i = 0; i < a.NumChains(); ++i)
{
Assert.True(a.GetChain(i) == b.GetChain(i));
int chain_length = a.GetChain(i).Length;
for (int j = 0; j < chain_length; ++j)
{
Assert.True(a.ChainEdge(i, j) == b.ChainEdge(i, j));
}
}
}