public void testTokens()
{
Trace.WriteLine("TestTokens");
// Test random cell ids at all levels.
for (var i = 0; i < 10000; ++i)
{
var id = getRandomCellId();
if (!id.IsValid)
{
continue;
}
var token = id.ToToken();
Assert.True(token.Length <= 16);
JavaAssert.Equal(S2CellId.FromToken(token), id);
}
// Check that invalid cell ids can be encoded.
var token1 = S2CellId.None.ToToken();
JavaAssert.Equal(S2CellId.FromToken(token1), S2CellId.None);
}
public void Test_S2CellId_Tokens()
{
// Test random cell ids at all levels.
for (int i = 0; i < 10000; ++i)
{
var id = S2Testing.GetRandomCellId();
var token = id.ToToken();
Assert.True(token.Length <= 16);
Assert.Equal(id, S2CellId.FromToken(token));
Assert.Equal(id, S2CellId.FromToken(token));
}
// Check that invalid cell ids can be encoded, and round-trip is
// the identity operation.
string token2 = S2CellId.None.ToToken();
Assert.Equal(S2CellId.None, S2CellId.FromToken(token2));
Assert.Equal(S2CellId.None, S2CellId.FromToken(token2));
// Sentinel is invalid.
token2 = S2CellId.Sentinel.ToToken();
Assert.Equal(S2CellId.FromToken(token2), S2CellId.Sentinel);
Assert.Equal(S2CellId.FromToken(token2),
S2CellId.Sentinel);
// Check an invalid face.
token2 = S2CellId.FromFace(7).ToToken();
Assert.Equal(S2CellId.FromToken(token2), S2CellId.FromFace(7));
Assert.Equal(S2CellId.FromToken(token2),
S2CellId.FromFace(7));
// Check that supplying tokens with non-alphanumeric characters
// returns S2CellId.None.
Assert.Equal(S2CellId.None, S2CellId.FromToken("876b e99"));
Assert.Equal(S2CellId.None, S2CellId.FromToken("876bee99\n"));
Assert.Equal(S2CellId.None, S2CellId.FromToken("876[ee99"));
Assert.Equal(S2CellId.None, S2CellId.FromToken(" 876bee99"));
}
