kubernetes/vendor/go.uber.org/zap/internal/ztest/clock.go

type MockClock …

// NewMockClock builds a new mock clock
// using the current actual time as the initial time.
func NewMockClock() *MockClock { … }

// Now reports the current time.
func (c *MockClock) Now() time.Time { … }

// NewTicker returns a time.Ticker that ticks at the specified frequency.
//
// As with [time.NewTicker],
// the ticker will drop ticks if the receiver is slow,
// and the channel is never closed.
//
// Calling Stop on the returned ticker is a no-op.
// The ticker only runs when the clock is advanced.
func (c *MockClock) NewTicker(d time.Duration) *time.Ticker { … }

// runAt schedules the given function to be run at the given time.
// The function runs without a lock held, so it may schedule more work.
func (c *MockClock) runAt(t time.Time, fn func()) { … }

type waiter …

// Add progresses time by the given duration.
// Other operations waiting for the time to advance
// will be resolved if they are within range.
//
// Side effects of operations waiting for the time to advance
// will take effect on a best-effort basis.
// Avoid racing with operations that have side effects.
//
// Panics if the duration is negative.
func (c *MockClock) Add(d time.Duration) { … }