70 lines
2.2 KiB
Go
70 lines
2.2 KiB
Go
|
package calendar
|
||
|
|
|
||
|
|
import (
|
||
|
|
"testing"
|
||
|
|
"time"
|
||
|
|
)
|
||
|
|
|
||
|
|
func addBase(t *testing.T, y, m, d int) Time {
|
||
|
|
t.Helper()
|
||
|
|
res, err := LunarToSolarByYMD(y, 1, 1, false) // 只是拿一个合法 Time，日期另行构造
|
||
|
|
_ = res
|
||
|
|
if err != nil {
|
||
|
|
t.Fatal(err)
|
||
|
|
}
|
||
|
|
fwd, err := SolarToLunarByYMD(y, m, d)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("SolarToLunarByYMD(%d,%d,%d) error: %v", y, m, d, err)
|
||
|
|
}
|
||
|
|
return fwd
|
||
|
|
}
|
||
|
|
|
||
|
|
// Add 必须与 time.Time 一样精确；此前 d≥1s 时经儒略日往返，普通日期会漂几微秒。
|
||
|
|
// Add must be as exact as time.Time; it used to round-trip through the Julian day for d >= 1s,
|
||
|
|
// which drifted by a few microseconds on ordinary dates.
|
||
|
|
func TestTimeAddIsExact(t *testing.T) {
|
||
|
|
base := addBase(t, 2024, 3, 1)
|
||
|
|
cases := []struct {
|
||
|
|
d time.Duration
|
||
|
|
want string
|
||
|
|
}{
|
||
|
|
{time.Millisecond, "2024-03-01 00:00:00.001"},
|
||
|
|
{time.Second, "2024-03-01 00:00:01.000"},
|
||
|
|
{time.Minute, "2024-03-01 00:01:00.000"},
|
||
|
|
{time.Hour, "2024-03-01 01:00:00.000"},
|
||
|
|
{24 * time.Hour, "2024-03-02 00:00:00.000"},
|
||
|
|
{30 * 24 * time.Hour, "2024-03-31 00:00:00.000"},
|
||
|
|
{-time.Hour, "2024-02-29 23:00:00.000"},
|
||
|
|
{-time.Millisecond, "2024-02-29 23:59:59.999"},
|
||
|
|
}
|
||
|
|
for _, c := range cases {
|
||
|
|
if got := base.Add(c.d).Solar().Format("2006-01-02 15:04:05.000"); got != c.want {
|
||
|
|
t.Errorf("Add(%v) = %s, want %s", c.d, got, c.want)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// 1582 改历跳过的 10 天不能出现在结果里：跨过该窗口的偏移要落在 10 天之后。
|
||
|
|
// The ten days skipped by the 1582 reform must never appear: an offset crossing that window lands
|
||
|
|
// after them.
|
||
|
|
func TestTimeAddSkipsGregorianReformGap(t *testing.T) {
|
||
|
|
cases := []struct {
|
||
|
|
y, m, d int
|
||
|
|
delta time.Duration
|
||
|
|
want string
|
||
|
|
}{
|
||
|
|
{1582, 10, 4, 24 * time.Hour, "1582-10-15"},
|
||
|
|
{1582, 10, 15, -24 * time.Hour, "1582-10-04"},
|
||
|
|
{1582, 9, 20, 30 * 24 * time.Hour, "1582-10-30"},
|
||
|
|
{1582, 10, 20, -30 * 24 * time.Hour, "1582-09-10"},
|
||
|
|
{1582, 9, 20, 24 * time.Hour, "1582-09-21"},
|
||
|
|
{1582, 10, 20, 24 * time.Hour, "1582-10-21"},
|
||
|
|
}
|
||
|
|
for _, c := range cases {
|
||
|
|
got := addBase(t, c.y, c.m, c.d).Add(c.delta).Solar().Format("2006-01-02")
|
||
|
|
if got != c.want {
|
||
|
|
t.Errorf("%d-%02d-%02d Add(%v) = %s, want %s", c.y, c.m, c.d, c.delta, got, c.want)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|