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package hotline
import (
"encoding/binary"
"testing"
"time"
)
func TestNewTime_RoundTrip(t *testing.T) {
// Truncate to seconds since the wire format has no sub-second precision.
want := time.Date(2025, time.October, 27, 18, 11, 34, 0, time.Local)
got := NewTime(want).Time()
if !got.Equal(want) {
t.Errorf("round trip = %v, want %v", got, want)
}
}
func TestNewTime_YearField(t *testing.T) {
tm := time.Date(2025, time.July, 10, 12, 0, 0, 0, time.Local)
b := NewTime(tm)
if year := binary.BigEndian.Uint16(b[0:2]); year != 2025 {
t.Errorf("year field = %d, want 2025", year)
}
}
// TestNewTime_SecondsSinceMacEpoch is the regression test for issue #166.
// Clients like Pitbull Pro ignore the year field and decode the 4-byte seconds
// field as a raw classic Mac OS timestamp (seconds since 1904-01-01). Encoding
// seconds-since-start-of-year instead made the value tiny, so those clients
// always rendered the year as 1904. Verify the seconds field decodes to the
// correct year when read as a Mac-epoch timestamp.
func TestNewTime_SecondsSinceMacEpoch(t *testing.T) {
tm := time.Date(2025, time.July, 10, 12, 0, 0, 0, time.Local)
b := NewTime(tm)
seconds := binary.BigEndian.Uint32(b[4:8])
decoded := macEpoch.Add(time.Duration(seconds) * time.Second)
if decoded.Year() != 2025 {
t.Errorf("Mac-epoch decode of seconds field = year %d, want 2025 (issue #166)", decoded.Year())
}
if !decoded.Equal(tm) {
t.Errorf("Mac-epoch decode = %v, want %v", decoded, tm)
}
}
func TestNewNewsTime_UsesSecondsSinceStartOfYear(t *testing.T) {
want := time.Date(2026, time.August, 22, 18, 9, 55, 0, time.Local)
encoded := NewNewsTime(want)
seconds := binary.BigEndian.Uint32(encoded[4:8])
if seconds >= 366*24*60*60 {
t.Fatalf("news seconds field = %d, want a year-relative value", seconds)
}
if got := encoded.NewsTime(); !got.Equal(want) {
t.Errorf("news time round trip = %v, want %v", got, want)
}
}
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