Function Never

internal/testify/assert/assertions.go:1986–2013

Never asserts that the given condition doesn't satisfy in waitFor time, periodically checking the target function each tick. assert.Never(t, func() bool { return false; }, time.Second, 10*time.Millisecond)

(t TestingT, condition func() bool, waitFor time.Duration, tick time.Duration, msgAndArgs ...interface{})

//
//	assert.Never(t, func() bool { return false; }, time.Second, 10*time.Millisecond)
func Never(t TestingT, condition func() bool, waitFor time.Duration, tick time.Duration, msgAndArgs ...interface{}) bool {
	if h, ok := t.(tHelper); ok {
		h.Helper()
	}

	ch := make(chan bool, 1)

	timer := time.NewTimer(waitFor)
	defer timer.Stop()

	ticker := time.NewTicker(tick)
	defer ticker.Stop()

	for tick := ticker.C; ; {
		select {
		case <-timer.C:
			return true
		case <-tick:
			tick = nil
			go func() { ch <- condition() }()
		case v := <-ch:
			if v {
				return Fail(t, "Condition satisfied", msgAndArgs...)
			}
			tick = ticker.C
		}
	}
}

// ErrorIs asserts that at least one of the errors in err's chain matches target.
// This is a wrapper for errors.Is.