Function testLimiter

pkg/alertmanager/alertmanager_test.go:289–310

testLimiter sends sequence of alerts to limiter, and checks if limiter updated reacted correctly.

(t *testing.T, limits Limits, ops []callbackOp)

// testLimiter sends sequence of alerts to limiter, and checks if limiter updated reacted correctly.
func testLimiter(t *testing.T, limits Limits, ops []callbackOp) {
	reg := prometheus.NewPedanticRegistry()

	limiter := newAlertsLimiter("test", limits, reg)

	for ix, op := range ops {
		if op.delete {
			limiter.PostDelete(op.alert)
		} else {
			err := limiter.PreStore(op.alert, op.existing)
			require.Equal(t, op.expectedInsertError, err, "op %d", ix)
			if err == nil {
				limiter.PostStore(op.alert, op.existing)
			}
		}

		count, totalSize := limiter.currentStats()

		assert.Equal(t, op.expectedCount, count, "wrong count, op %d", ix)
		assert.Equal(t, op.expectedTotalSize, totalSize, "wrong total size, op %d", ix)
	}
}