refactor: rename ScadaLink → ZB.MOM.WW.ScadaBridge (code + projects + namespaces)
Solution + 23 src projects + 26 test projects renamed; folders, csproj, namespaces, and ScadaLinkDbContext/ScadaBridgeDbContext class updated. ActorSystem "scadalink" → "scadabridge", Akka seed-node URLs migrated. SQL roles/logins, LDAP domains, CLI command name, and CLI config dir (~/.scadalink → ~/.scadabridge) also renamed. Build green; 5 Host.Tests fail awaiting SQL login rename in next commit. Pre-existing StaleTagMonitor timing flakes unchanged. Rename script committed at tools/rename-to-scadabridge.sh.
This commit is contained in:
Joseph Doherty
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using System.Text.Json;
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using Microsoft.Extensions.Logging.Abstractions;
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using ZB.MOM.WW.ScadaBridge.Commons.Messages.Health;
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using ZB.MOM.WW.ScadaBridge.Commons.Messages.Streaming;
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using ZB.MOM.WW.ScadaBridge.Commons.Types.Enums;
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using ZB.MOM.WW.ScadaBridge.StoreAndForward;
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namespace ZB.MOM.WW.ScadaBridge.IntegrationTests;
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/// <summary>
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/// WP-2 (Phase 8): Full-system failover testing — Site.
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/// Verifies S&F buffer takeover, DCL reconnection structure, alarm re-evaluation,
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/// and script trigger resumption after site failover.
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/// </summary>
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public class SiteFailoverTests
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{
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[Trait("Category", "Integration")]
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[Fact]
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public async Task StoreAndForward_BufferSurvivesRestart_MessagesRetained()
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{
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// Simulates site failover: messages buffered in SQLite survive process restart.
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// The standby node picks up the same SQLite file and retries pending messages.
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var dbPath = Path.Combine(Path.GetTempPath(), $"sf_failover_{Guid.NewGuid():N}.db");
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var connStr = $"Data Source={dbPath}";
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try
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{
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// Phase 1: Buffer messages on "primary" node
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var storage = new StoreAndForwardStorage(connStr, NullLogger<StoreAndForwardStorage>.Instance);
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await storage.InitializeAsync();
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var message = new StoreAndForwardMessage
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{
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Id = Guid.NewGuid().ToString("N"),
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Category = StoreAndForwardCategory.ExternalSystem,
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Target = "https://api.example.com/data",
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PayloadJson = """{"temperature":42.5}""",
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RetryCount = 2,
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MaxRetries = 50,
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RetryIntervalMs = 30000,
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CreatedAt = DateTimeOffset.UtcNow,
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Status = StoreAndForwardMessageStatus.Pending,
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OriginInstanceName = "pump-station-1"
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};
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await storage.EnqueueAsync(message);
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// Phase 2: "Standby" node opens the same database (simulating failover)
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var standbyStorage = new StoreAndForwardStorage(connStr, NullLogger<StoreAndForwardStorage>.Instance);
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await standbyStorage.InitializeAsync();
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var pending = await standbyStorage.GetMessagesForRetryAsync();
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Assert.Single(pending);
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Assert.Equal(message.Id, pending[0].Id);
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Assert.Equal("pump-station-1", pending[0].OriginInstanceName);
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Assert.Equal(2, pending[0].RetryCount);
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}
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finally
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{
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if (File.Exists(dbPath))
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File.Delete(dbPath);
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}
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}
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[Trait("Category", "Integration")]
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[Fact]
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public async Task StoreAndForward_ParkedMessages_SurviveFailover()
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{
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var dbPath = Path.Combine(Path.GetTempPath(), $"sf_parked_{Guid.NewGuid():N}.db");
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var connStr = $"Data Source={dbPath}";
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try
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{
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var storage = new StoreAndForwardStorage(connStr, NullLogger<StoreAndForwardStorage>.Instance);
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await storage.InitializeAsync();
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var parkedMsg = new StoreAndForwardMessage
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{
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Id = Guid.NewGuid().ToString("N"),
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Category = StoreAndForwardCategory.Notification,
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Target = "alert-list",
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PayloadJson = """{"subject":"Critical alarm"}""",
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RetryCount = 50,
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MaxRetries = 50,
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RetryIntervalMs = 30000,
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CreatedAt = DateTimeOffset.UtcNow.AddHours(-1),
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LastAttemptAt = DateTimeOffset.UtcNow,
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Status = StoreAndForwardMessageStatus.Parked,
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LastError = "SMTP connection timeout",
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OriginInstanceName = "compressor-1"
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};
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await storage.EnqueueAsync(parkedMsg);
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// Standby opens same DB
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var standbyStorage = new StoreAndForwardStorage(connStr, NullLogger<StoreAndForwardStorage>.Instance);
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await standbyStorage.InitializeAsync();
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var (parked, count) = await standbyStorage.GetParkedMessagesAsync();
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Assert.Equal(1, count);
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Assert.Equal("SMTP connection timeout", parked[0].LastError);
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}
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finally
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{
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if (File.Exists(dbPath))
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File.Delete(dbPath);
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}
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}
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[Fact]
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public void AlarmReEvaluation_IncomingValue_TriggersNewState()
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{
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// Structural verification: AlarmStateChanged carries all data needed for
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// re-evaluation after failover. When DCL reconnects and pushes new values,
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// the Alarm Actor evaluates from the incoming value (not stale state).
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var alarmEvent = new AlarmStateChanged(
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"pump-station-1",
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"HighPressureAlarm",
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AlarmState.Active,
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1,
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DateTimeOffset.UtcNow);
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Assert.Equal(AlarmState.Active, alarmEvent.State);
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Assert.Equal("pump-station-1", alarmEvent.InstanceUniqueName);
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// After failover, a new value triggers re-evaluation
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var clearedEvent = new AlarmStateChanged(
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"pump-station-1",
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"HighPressureAlarm",
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AlarmState.Normal,
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1,
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DateTimeOffset.UtcNow.AddSeconds(5));
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Assert.Equal(AlarmState.Normal, clearedEvent.State);
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Assert.True(clearedEvent.Timestamp > alarmEvent.Timestamp);
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}
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[Fact]
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public void ScriptTriggerResumption_ValueChangeTriggersScript()
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{
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// Structural verification: AttributeValueChanged messages from DCL after reconnection
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// will be routed to Script Actors, which evaluate triggers based on incoming values.
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// No stale trigger state needed — triggers fire on new values.
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var valueChange = new AttributeValueChanged(
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"pump-station-1",
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"OPC:ns=2;s=Pressure",
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"Pressure",
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150.0,
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"Good",
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DateTimeOffset.UtcNow);
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Assert.Equal("Pressure", valueChange.AttributeName);
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Assert.Equal("OPC:ns=2;s=Pressure", valueChange.AttributePath);
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Assert.Equal(150.0, valueChange.Value);
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Assert.Equal("Good", valueChange.Quality);
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}
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[Trait("Category", "Integration")]
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[Fact]
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public async Task StoreAndForward_BufferDepth_ReportedAfterFailover()
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{
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var dbPath = Path.Combine(Path.GetTempPath(), $"sf_depth_{Guid.NewGuid():N}.db");
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var connStr = $"Data Source={dbPath}";
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try
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{
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var storage = new StoreAndForwardStorage(connStr, NullLogger<StoreAndForwardStorage>.Instance);
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await storage.InitializeAsync();
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// Enqueue messages in different categories
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for (var i = 0; i < 5; i++)
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{
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await storage.EnqueueAsync(new StoreAndForwardMessage
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{
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Id = Guid.NewGuid().ToString("N"),
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Category = StoreAndForwardCategory.ExternalSystem,
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Target = "api",
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PayloadJson = "{}",
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MaxRetries = 50,
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RetryIntervalMs = 30000,
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CreatedAt = DateTimeOffset.UtcNow,
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Status = StoreAndForwardMessageStatus.Pending,
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});
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}
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for (var i = 0; i < 3; i++)
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{
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await storage.EnqueueAsync(new StoreAndForwardMessage
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{
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Id = Guid.NewGuid().ToString("N"),
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Category = StoreAndForwardCategory.Notification,
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Target = "alerts",
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PayloadJson = "{}",
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MaxRetries = 50,
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RetryIntervalMs = 30000,
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CreatedAt = DateTimeOffset.UtcNow,
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Status = StoreAndForwardMessageStatus.Pending,
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});
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}
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// After failover, standby reads buffer depths
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var standbyStorage = new StoreAndForwardStorage(connStr, NullLogger<StoreAndForwardStorage>.Instance);
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await standbyStorage.InitializeAsync();
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var depths = await standbyStorage.GetBufferDepthByCategoryAsync();
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Assert.Equal(5, depths[StoreAndForwardCategory.ExternalSystem]);
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Assert.Equal(3, depths[StoreAndForwardCategory.Notification]);
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}
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finally
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{
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if (File.Exists(dbPath))
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File.Delete(dbPath);
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}
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}
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}
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