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Unit test coordinate encoding and decoding

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This commit is contained in:
Erica Fischer
2024-04-05 12:23:37 -07:00
parent bc5183c075
commit 47124087ca
1 changed files with 19 additions and 0 deletions
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unit.cpp
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@@ -122,3 +122,22 @@ TEST_CASE("Projection", "projection") {
REQUIRE(std::llround(wx36 / 16.0) == wx32);
REQUIRE(std::llround(wy36 / 16.0) == wy32);
}
TEST_CASE("Quadkey index", "quadkey index") {
unsigned x = (unsigned) 1234567890;
unsigned y = (unsigned) 3210987654;
index_t encoded;
unsigned nx, ny;
encoded = encode_quadkey(x, y);
REQUIRE((unsigned long long) encoded == 7338499239188161052);
decode_quadkey(encoded, &nx, &ny);
REQUIRE(nx == x);
REQUIRE(ny == y);
encoded = encode_hilbert(x, y);
REQUIRE((unsigned long long) encoded == 8447864191955811122);
decode_hilbert(encoded, &nx, &ny);
REQUIRE(nx == x);
REQUIRE(ny == y);
}