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Add uuid test for timestamps

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Feoramund
2024-06-22 15:49:48 -04:00
parent f6344577d3
commit d559feb701
1 changed files with 48 additions and 0 deletions
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48
tests/core/encoding/uuid/test_core_uuid.odin
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@@ -33,6 +33,54 @@ test_version_and_variant :: proc(t: ^testing.T) {
testing.expect_value(t, uuid.variant(v7), uuid.Variant_Type.RFC_4122)
}
@(test)
test_timestamps :: proc(t: ^testing.T) {
// This test makes sure that timestamps are recoverable and have not been
// overwritten by neighboring bits, taking into account precision loss.
context.random_generator = crypto.random_generator()
N :: max(i64)
max_time := time.Time { N }
mac: [6]byte
v1 := uuid.generate_v1(0, mac, max_time)
v6 := uuid.generate_v6(0, mac, max_time)
v7 := uuid.generate_v7(max_time)
// The counter version keeps its time in the same place as the basic version,
// this is just for the sake of completeness.
v7_counter := uuid.generate_v7(0, max_time)
v1_time := uuid.time_v1(v1)
v6_time := uuid.time_v6(v6)
v7_time := uuid.time_v7(v7)
v7_counter_time := uuid.time_v7(v7_counter)
// I hope the compiler doesn't ever optimize this out.
max_time_hns_resolution := time.Time { N / 100 * 100 }
max_time_ms_resolution := time.Time { N / 1e6 * 1e6 }
testing.expectf(t,
time.diff(max_time_hns_resolution, v1_time) == 0,
"v1 UUID timestamp is invalid, expected %x, got %x",
max_time_hns_resolution, v1_time)
testing.expectf(t,
time.diff(max_time_hns_resolution, v6_time) == 0,
"v6 UUID timestamp is invalid, expected %x, got %x",
max_time_hns_resolution, v6_time)
testing.expectf(t,
time.diff(max_time_ms_resolution, v7_time) == 0,
"v7 UUID timestamp is invalid, expected %x, got %x",
max_time_ms_resolution, v7_time)
testing.expectf(t,
time.diff(max_time_ms_resolution, v7_counter_time) == 0,
"v7 UUID (with counter) timestamp is invalid, expected %x, got %x",
max_time_ms_resolution, v7_counter_time)
}
@(test)
test_legacy_namespaced_uuids :: proc(t: ^testing.T) {
TEST_NAME :: "0123456789ABCDEF0123456789ABCDEF"