Leapsecs and TAI64 support

[gotai64n.git] / tai64n_test.go

diff --git a/tai64n_test.go b/tai64n_test.go
new file mode 100644 (file)
index 0000000..892f77f
--- /dev/null
+++ b/tai64n_test.go
@@ -0,0 +1,67 @@
+/*
+go.cypherpunks.ru/tai64n -- Pure Go TAI64/TAI64N implementation
+Copyright (C) 2020-2021 Sergey Matveev <stargrave@stargrave.org>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, version 3 of the License.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+package tai64n
+
+import (
+       "testing"
+       "time"
+)
+
+func TestVector(t *testing.T) {
+       tm, err := Decode("400000002a2b2c2d")
+       if err != nil {
+               t.Fatal(err)
+       }
+
+       ref := time.Date(1992, 6, 2, 8, 7, 9, 0, time.UTC).Add(-Leapsecs1972 * time.Second)
+       if !tm.Equal(ref) {
+               t.Fatal("TAI64 != reference")
+       }
+
+       tm = LeapsecsSub(tm)
+       ref = time.Date(1992, 6, 2, 8, 6, 43, 0, time.UTC)
+       if !tm.Equal(ref) {
+               t.Fatal("UTC != reference")
+       }
+}
+
+func BenchmarkTAI64(b *testing.B) {
+       now := time.Now()
+       now = time.Unix(now.Unix(), 0)
+       tai := new(TAI64)
+       b.ResetTimer()
+       for i := 0; i < b.N; i++ {
+               tai.FromTime(now)
+               if !ToTime(tai[:]).Equal(now) {
+                       b.FailNow()
+               }
+       }
+}
+
+func BenchmarkTAI64N(b *testing.B) {
+       now := time.Now()
+       now = time.Unix(now.Unix(), now.UnixNano())
+       tai := new(TAI64N)
+       b.ResetTimer()
+       for i := 0; i < b.N; i++ {
+               tai.FromTime(now)
+               if !ToTime(tai[:]).Equal(now) {
+                       b.FailNow()
+               }
+       }
+}