package com.ruoyi.device.contract;
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import static org.junit.jupiter.api.Assertions.assertEquals;
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import static org.junit.jupiter.api.Assertions.assertFalse;
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import static org.junit.jupiter.api.Assertions.assertTrue;
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import static org.junit.jupiter.api.Assertions.assertThrows;
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import java.math.BigDecimal;
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import java.time.Duration;
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import java.time.Instant;
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import java.time.ZoneId;
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import java.util.List;
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import java.util.Set;
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import org.junit.jupiter.api.Test;
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import com.ruoyi.device.api.DeviceAdapter;
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import com.ruoyi.device.bts.BtsDevelopmentSimulator;
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import com.ruoyi.device.bts.BtsDeviceAdapter;
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import com.ruoyi.device.bts.BtsXmlCodec;
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import com.ruoyi.device.bts.BtsTcpTransport;
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import com.ruoyi.device.bts.ScriptedBtsTcpSimulator;
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import com.ruoyi.device.model.DetectedChannel;
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import com.ruoyi.device.model.DeviceWorkStatus;
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import com.ruoyi.device.simulator.BtsSimulatorStateStore;
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import com.ruoyi.device.simulator.BtsSimulatorStateStore.ChannelState;
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import com.ruoyi.device.simulator.BtsSimulatorStateStore.CollectorHistoryFaults;
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import com.ruoyi.device.simulator.BtsSimulatorStateStore.CollectorMetricState;
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import com.ruoyi.device.simulator.BtsSimulatorStateStore.DeviceState;
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import com.ruoyi.device.simulator.BtsSimulatorStateStore.SimulatorState;
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import com.ruoyi.device.simulator.InMemoryBtsSimulatorStateStore;
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class SimulatorPublicContractTest
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{
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@Test
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void collectorGeneratesIndependentRealtimeAndHistoricalMeasurements() throws Exception
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{
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Instant startedAt = Instant.parse("2026-08-29T01:00:00Z");
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try (BtsDevelopmentSimulator simulator = new BtsDevelopmentSimulator(0))
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{
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simulator.configureCollectorSampling(1, 200, CollectorHistoryFaults.none());
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simulator.configureCollectorChannel(1, "S-01", List.of(
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new CollectorMetricState("temperature", new BigDecimal("26.5"), "℃"),
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new CollectorMetricState("positive_potential", new BigDecimal("3.801"), "V"),
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new CollectorMetricState("negative_potential", new BigDecimal("-0.120"), "V"),
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new CollectorMetricState("pressure", new BigDecimal("101.2"), "kPa")));
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simulator.advanceCollectors(startedAt);
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simulator.advanceCollectors(startedAt.plusMillis(400));
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var realtime = simulator.snapshot().collectors().get(0).latestMeasurements();
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var history = simulator.collectorHistory(1, 0, 1000);
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assertEquals(13, realtime.size());
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assertTrue(realtime.stream().allMatch(item -> item.sequenceId() == 3));
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assertTrue(realtime.stream().anyMatch(item -> item.channelCode().equals("S-01")
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&& item.metricCode().equals("pressure") && item.unit().equals("kPa")));
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assertEquals(39, history.total());
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assertEquals("dev-sim", history.records().get(0).adapterCode());
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assertEquals("dev-sim-collector-1", history.records().get(0).collectorCode());
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assertEquals(startedAt, history.records().get(0).deviceTime());
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assertTrue(history.records().get(0).deviceTimeRaw().startsWith("2026-08-29 09:00:00"));
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assertEquals(startedAt, history.records().get(0).serverReceivedAt());
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}
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}
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@Test
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void collectorHistorySupportsPagingAndRepeatableFaultScenarios() throws Exception
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{
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Instant startedAt = Instant.parse("2026-08-29T02:00:00Z");
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try (BtsDevelopmentSimulator simulator = new BtsDevelopmentSimulator(0))
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{
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simulator.configureCollectorSampling(1, 100,
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new CollectorHistoryFaults(List.of(2L), 1L, 3L, true));
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simulator.advanceCollectors(startedAt);
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simulator.advanceCollectors(startedAt.plusMillis(200));
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var first = simulator.collectorHistory(1, 0, 17);
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var second = simulator.collectorHistory(1, first.nextOffset(), 1000);
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List<com.ruoyi.device.simulator.BtsSimulatorStateStore.CollectorMeasurementRecord> records =
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new java.util.ArrayList<>(first.records());
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records.addAll(second.records());
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assertEquals(48, first.total());
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assertTrue(first.hasMore());
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assertFalse(second.hasMore());
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assertTrue(records.stream().noneMatch(item -> item.sequenceId() == 2));
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assertEquals(24, records.stream().filter(item -> item.sequenceId() == 1).count());
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assertEquals(2, records.stream().filter(item -> item.sequenceId() == 3
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&& item.channelCode().equals("S-01") && item.metricCode().equals("temperature")).count());
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assertTrue(records.get(0).sequenceId() >= records.get(records.size() - 1).sequenceId());
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}
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}
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@Test
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void collectorStopsWhileOfflineAndResumesFromPersistedSequence() throws Exception
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{
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InMemoryBtsSimulatorStateStore store = new InMemoryBtsSimulatorStateStore();
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Instant now = Instant.now();
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try (BtsDevelopmentSimulator simulator = new BtsDevelopmentSimulator(0, store))
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{
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simulator.advanceCollectors(now);
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simulator.updateCollector(1, "127.0.1.2", 4, false);
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simulator.advanceCollectors(now.plusSeconds(10));
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assertEquals(1, simulator.snapshot().collectors().get(0).latestMeasurements().get(0).sequenceId());
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}
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try (BtsDevelopmentSimulator restored = new BtsDevelopmentSimulator(0, store))
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{
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restored.updateCollector(1, "127.0.1.2", 4, true);
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restored.advanceCollectors(Instant.now().plusSeconds(2));
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assertTrue(restored.snapshot().collectors().get(0).latestMeasurements().get(0).sequenceId() >= 2);
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assertEquals(List.of("S-01", "S-02", "S-03", "S-04"),
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restored.snapshot().collectors().get(0).channels().stream()
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.map(channel -> channel.channelCode()).toList());
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}
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}
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@Test
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void simulatorIsReusableOutsideTheBtsPackage() throws Exception
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{
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try (ScriptedBtsTcpSimulator simulator = new ScriptedBtsTcpSimulator();
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BtsTcpTransport transport = new BtsTcpTransport("127.0.0.1", simulator.port(),
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Duration.ofSeconds(1), Duration.ofSeconds(1)))
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{
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simulator.enqueue("<bts><cmd>getdevinfo_resp</cmd><middle count=\"0\"/></bts>");
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assertEquals("<bts><cmd>getdevinfo_resp</cmd><middle count=\"0\"/></bts>",
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transport.exchange("<bts><cmd>getdevinfo</cmd></bts>"));
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assertEquals(1, simulator.requests().size());
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}
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}
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@Test
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void simulatorPreservesRequestEndingWithDelimiterPrefix() throws Exception
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{
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try (ScriptedBtsTcpSimulator simulator = new ScriptedBtsTcpSimulator();
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BtsTcpTransport transport = new BtsTcpTransport("127.0.0.1", simulator.port(),
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Duration.ofSeconds(1), Duration.ofSeconds(1)))
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{
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simulator.enqueue("ok");
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assertEquals("ok", transport.exchange("payload#"));
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assertEquals("payload#", simulator.requests().get(0));
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}
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}
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@Test
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void developmentSimulatorSupportsRepeatedDiscoveryAndObservation() throws Exception
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{
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try (BtsDevelopmentSimulator simulator = new BtsDevelopmentSimulator(0);
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BtsTcpTransport transport = new BtsTcpTransport("127.0.0.1", simulator.port(),
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Duration.ofSeconds(1), Duration.ofSeconds(1));
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DeviceAdapter adapter = new BtsDeviceAdapter("development-bts", transport,
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new BtsXmlCodec("development-bts", ZoneId.of("Asia/Hong_Kong"))))
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{
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var firstDiscovery = adapter.discoverChannels();
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var secondDiscovery = adapter.discoverChannels();
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assertEquals(4, firstDiscovery.size());
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assertEquals(firstDiscovery, secondDiscovery);
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assertEquals("开发模拟器", firstDiscovery.get(0).deviceMetadata().manufacturer());
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assertEquals("BTS Virtual Cabinet", firstDiscovery.get(0).deviceMetadata().model());
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assertEquals(1, firstDiscovery.stream().map(channel -> channel.identity().devid()).distinct().count());
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assertEquals(4, firstDiscovery.stream().filter(channel -> channel.available()).count());
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Set<com.ruoyi.device.model.ChannelIdentity> channels = firstDiscovery.stream()
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.map(channel -> channel.identity())
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.collect(java.util.stream.Collectors.toSet());
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var firstObservation = adapter.inquire(channels);
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var secondObservation = adapter.inquire(channels);
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assertEquals(4, firstObservation.size());
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assertEquals(DeviceWorkStatus.STOPPED, firstObservation.values().iterator().next().workStatus());
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assertEquals(firstObservation.keySet(), secondObservation.keySet());
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}
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}
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@Test
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void developmentSimulatorPublishesOperatorControlledChannelFacts() throws Exception
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{
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try (BtsDevelopmentSimulator simulator = new BtsDevelopmentSimulator(0);
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BtsTcpTransport transport = new BtsTcpTransport("127.0.0.1", simulator.port(),
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Duration.ofSeconds(1), Duration.ofSeconds(1));
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DeviceAdapter adapter = new BtsDeviceAdapter("dev-sim", transport,
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new BtsXmlCodec("dev-sim", ZoneId.of("Asia/Hong_Kong"))))
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{
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simulator.updateChannel(1, 1, true, DeviceWorkStatus.WORKING);
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simulator.updateChannel(1, 2, false, DeviceWorkStatus.PAUSED);
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var discovered = adapter.discoverChannels();
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Set<com.ruoyi.device.model.ChannelIdentity> available = discovered.stream()
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.filter(channel -> channel.available())
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.map(channel -> channel.identity())
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.collect(java.util.stream.Collectors.toSet());
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var observed = adapter.inquire(available);
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assertEquals(4, discovered.size());
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assertEquals(3, available.size());
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assertEquals(DeviceWorkStatus.WORKING, observed.entrySet().stream()
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.filter(entry -> entry.getKey().chlid() == 1)
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.findFirst().orElseThrow().getValue().workStatus());
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simulator.updateDevice(1, "127.0.0.2", 4, false);
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assertEquals(0, adapter.discoverChannels().stream().filter(channel -> channel.available()).count());
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assertEquals(4, simulator.snapshot().devices().get(0).channels().size());
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assertEquals(3, simulator.snapshot().recentRequests().size());
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}
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}
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@Test
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void developmentSimulatorSupportsMultipleConfigurableDevices() throws Exception
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{
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try (BtsDevelopmentSimulator simulator = new BtsDevelopmentSimulator(0);
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BtsTcpTransport transport = new BtsTcpTransport("127.0.0.1", simulator.port(),
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Duration.ofSeconds(1), Duration.ofSeconds(1));
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DeviceAdapter adapter = new BtsDeviceAdapter("dev-sim", transport,
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new BtsXmlCodec("dev-sim", ZoneId.of("Asia/Hong_Kong"))))
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{
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int secondDeviceId = simulator.addDevice("127.0.0.3", 2);
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simulator.updateDevice(1, "127.0.0.2", 4, true);
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var discovered = adapter.discoverChannels();
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assertEquals(6, discovered.size());
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assertEquals(2, discovered.stream().map(channel -> channel.identity().devid()).distinct().count());
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assertEquals(4, discovered.stream().filter(channel -> channel.serverIp().equals("127.0.0.2")).count());
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assertEquals(2, discovered.stream().filter(channel -> channel.serverIp().equals("127.0.0.3")).count());
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simulator.deleteDevice(secondDeviceId);
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for (int index = 0; index < 3; index++)
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{
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var withTombstone = adapter.discoverChannels();
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assertEquals(6, withTombstone.size());
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assertEquals(4, withTombstone.stream().filter(DetectedChannel::available).count());
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}
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assertEquals(4, adapter.discoverChannels().size());
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}
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}
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@Test
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void developmentCollectorsNeverEnterBtsCabinetDiscovery() throws Exception
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{
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try (BtsDevelopmentSimulator simulator = new BtsDevelopmentSimulator(0);
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BtsTcpTransport transport = new BtsTcpTransport("127.0.0.1", simulator.port(),
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Duration.ofSeconds(1), Duration.ofSeconds(1));
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DeviceAdapter adapter = new BtsDeviceAdapter("dev-sim", transport,
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new BtsXmlCodec("dev-sim", ZoneId.of("Asia/Hong_Kong"))))
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{
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assertEquals(4, adapter.discoverChannels().size());
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simulator.addCollector("127.0.1.8", 12);
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assertEquals(4, adapter.discoverChannels().size());
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assertEquals(2, simulator.snapshot().collectors().size());
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}
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}
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@Test
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void developmentSimulatorRestoresConfigurationNumberingAndStatus() throws Exception
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{
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InMemoryBtsSimulatorStateStore store = new InMemoryBtsSimulatorStateStore();
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try (BtsDevelopmentSimulator first = new BtsDevelopmentSimulator(0, store))
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{
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first.updateDevice(1, "127.0.0.9", 2, false);
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first.addDevice("127.0.0.10", 3);
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first.updateCollector(1, "127.0.1.9", 7, false);
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}
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try (BtsDevelopmentSimulator restored = new BtsDevelopmentSimulator(0, store))
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{
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assertEquals(2, restored.snapshot().devices().size());
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assertEquals("127.0.0.9", restored.snapshot().devices().get(0).ip());
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assertEquals(false, restored.snapshot().devices().get(0).online());
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assertEquals(7, restored.snapshot().collectors().get(0).channelCount());
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assertEquals(3, restored.addDevice("127.0.0.11", 1));
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}
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}
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@Test
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void developmentSimulatorDoesNotExposeWriteThroughFailureInMemory() throws Exception
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{
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InMemoryBtsSimulatorStateStore delegate = new InMemoryBtsSimulatorStateStore();
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BtsSimulatorStateStore failing = new BtsSimulatorStateStore()
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{
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@Override public SimulatorState loadOrInitialize(SimulatorState value)
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{ return delegate.loadOrInitialize(value); }
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@Override public void save(SimulatorState value) { throw new IllegalStateException("redis unavailable"); }
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@Override public java.util.List<RecentRequest> loadRecentRequests()
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{ return delegate.loadRecentRequests(); }
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@Override public void saveRecentRequests(java.util.List<RecentRequest> requests)
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{ delegate.saveRecentRequests(requests); }
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@Override public void reset(SimulatorState value) { delegate.reset(value); }
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};
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try (BtsDevelopmentSimulator simulator = new BtsDevelopmentSimulator(0, failing))
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{
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assertThrows(IllegalStateException.class, () -> simulator.addDevice("127.0.0.3", 2));
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assertEquals(1, simulator.snapshot().devices().size());
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}
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}
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@Test
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void developmentSimulatorRestoresUnfinishedTombstones() throws Exception
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{
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InMemoryBtsSimulatorStateStore store = new InMemoryBtsSimulatorStateStore();
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try (BtsDevelopmentSimulator first = new BtsDevelopmentSimulator(0, store);
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BtsTcpTransport transport = new BtsTcpTransport("127.0.0.1", first.port(),
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Duration.ofSeconds(1), Duration.ofSeconds(1));
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DeviceAdapter adapter = new BtsDeviceAdapter("dev-sim", transport,
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new BtsXmlCodec("dev-sim", ZoneId.of("Asia/Hong_Kong"))))
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{
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first.deleteDevice(1);
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assertEquals(4, adapter.discoverChannels().size());
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}
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try (BtsDevelopmentSimulator restored = new BtsDevelopmentSimulator(0, store);
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BtsTcpTransport transport = new BtsTcpTransport("127.0.0.1", restored.port(),
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Duration.ofSeconds(1), Duration.ofSeconds(1));
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DeviceAdapter adapter = new BtsDeviceAdapter("dev-sim", transport,
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new BtsXmlCodec("dev-sim", ZoneId.of("Asia/Hong_Kong"))))
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{
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assertEquals(4, adapter.discoverChannels().size());
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assertEquals(4, adapter.discoverChannels().size());
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assertEquals(0, adapter.discoverChannels().size());
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}
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}
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@Test
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void developmentSimulatorRejectsNonContiguousRestoredChannelTopology()
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{
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SimulatorState damaged = new SimulatorState(BtsSimulatorStateStore.CURRENT_VERSION,
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java.util.List.of(new DeviceState(1, "127.0.0.2", true,
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java.util.List.of(new ChannelState(2, true, DeviceWorkStatus.STOPPED)))),
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java.util.List.of(), 2, 1, java.util.List.of());
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assertThrows(IllegalStateException.class,
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() -> new BtsDevelopmentSimulator(0, new InMemoryBtsSimulatorStateStore(damaged)));
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}
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}
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