package cn.iocoder.yudao.module.mes.service.dv.telemetry;

import org.junit.jupiter.api.Test;

import java.time.LocalDateTime;

import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertTrue;

class MesDvTelemetryServiceImplTest {

    private static final LocalDateTime REFERENCE_TIME = LocalDateTime.of(2026, 11, 7, 15, 30);

    @Test
    void isAcceptableTelemetryTime_acceptsCurrentTimeAndClockSkew() {
        assertTrue(MesDvTelemetryServiceImpl.isAcceptableTelemetryTime(REFERENCE_TIME, REFERENCE_TIME));
        assertTrue(MesDvTelemetryServiceImpl.isAcceptableTelemetryTime(
                REFERENCE_TIME.plusMinutes(5), REFERENCE_TIME));
    }

    @Test
    void isAcceptableTelemetryTime_rejectsMissingAndFutureTime() {
        assertFalse(MesDvTelemetryServiceImpl.isAcceptableTelemetryTime(null, REFERENCE_TIME));
        assertFalse(MesDvTelemetryServiceImpl.isAcceptableTelemetryTime(
                LocalDateTime.of(2026, 12, 24, 0, 0), REFERENCE_TIME));
        assertFalse(MesDvTelemetryServiceImpl.isAcceptableTelemetryTime(
                REFERENCE_TIME.plusMinutes(5).plusNanos(1), REFERENCE_TIME));
    }

}