Initial QSfera import

Server/vendor/github.com/samber/lo/internal/xtime/fake.go

@@ -0,0 +1,40 @@
+//nolint:revive
+package xtime
+
+import (
+	"time"
+)
+
+func NewFakeClock() *FakeClock {
+	return NewFakeClockAt(time.Now())
+}
+
+func NewFakeClockAt(t time.Time) *FakeClock {
+	return &FakeClock{
+		time: t,
+	}
+}
+
+type FakeClock struct {
+	_ noCopy
+
+	// Not protected by a mutex. If a warning is thrown in your tests,
+	// just disable parallel tests.
+	time time.Time
+}
+
+func (c *FakeClock) Now() time.Time {
+	return c.time
+}
+
+func (c *FakeClock) Since(t time.Time) time.Duration {
+	return c.time.Sub(t)
+}
+
+func (c *FakeClock) Until(t time.Time) time.Duration {
+	return t.Sub(c.time)
+}
+
+func (c *FakeClock) Sleep(d time.Duration) {
+	c.time = c.time.Add(d)
+}