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Add integration test harness: OpcUaServiceBuilder + OpcUaServerFixture

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OpcUaServiceBuilder provides fluent API for constructing OpcUaService
with dependency overrides (IMxProxy, IGalaxyRepository, IMxAccessClient).
WithMxAccessClient skips the STA thread and COM interop entirely.

OpcUaServerFixture wraps the service lifecycle with automatic port
allocation (atomic counter starting at 16000), guaranteed cleanup via
IAsyncLifetime, and factory methods for common test scenarios:
- WithFakes() — FakeMxProxy + FakeGalaxyRepository with standard data
- WithFakeMxAccessClient() — bypasses COM, fastest for most tests

Also adds TestData helper with reusable hierarchy/attributes matching
gr/layout.md, and 5 fixture tests verifying startup, shutdown, port
isolation, and address space building.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
Joseph Doherty
2026-03-25 06:22:31 -04:00
parent a0edac81fb
commit 44177acf64
5 changed files with 385 additions and 6 deletions
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86
tests/ZB.MOM.WW.LmxOpcUa.Tests/Helpers/OpcUaServerFixtureTests.cs Normal file
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using System.Diagnostics;
using System.Threading.Tasks;
using Shouldly;
using Xunit;
using ZB.MOM.WW.LmxOpcUa.Host.Domain;
namespace ZB.MOM.WW.LmxOpcUa.Tests.Helpers
{
public class OpcUaServerFixtureTests
{
[Fact]
public async Task WithFakes_StartsAndStops()
{
var fixture = OpcUaServerFixture.WithFakes();
await fixture.InitializeAsync();
fixture.Service.ShouldNotBeNull();
fixture.Service.MxClient.ShouldNotBeNull();
fixture.Service.MxClient!.State.ShouldBe(ConnectionState.Connected);
fixture.Service.GalaxyStatsInstance.ShouldNotBeNull();
fixture.Service.GalaxyStatsInstance!.GalaxyName.ShouldBe("TestGalaxy");
fixture.OpcUaPort.ShouldBeGreaterThan(16000);
fixture.EndpointUrl.ShouldContain(fixture.OpcUaPort.ToString());
await fixture.DisposeAsync();
}
[Fact]
public async Task WithFakeMxAccessClient_SkipsCom()
{
var mxClient = new FakeMxAccessClient();
var fixture = OpcUaServerFixture.WithFakeMxAccessClient(mxClient);
await fixture.InitializeAsync();
fixture.Service.MxClient.ShouldBe(mxClient);
mxClient.State.ShouldBe(ConnectionState.Connected);
await fixture.DisposeAsync();
}
[Fact]
public async Task MultipleFixtures_GetUniquePortsAutomatically()
{
var fixture1 = OpcUaServerFixture.WithFakeMxAccessClient();
var fixture2 = OpcUaServerFixture.WithFakeMxAccessClient();
fixture1.OpcUaPort.ShouldNotBe(fixture2.OpcUaPort);
// Both can start without port conflicts
await fixture1.InitializeAsync();
await fixture2.InitializeAsync();
fixture1.Service.ShouldNotBeNull();
fixture2.Service.ShouldNotBeNull();
await fixture1.DisposeAsync();
await fixture2.DisposeAsync();
}
[Fact]
public async Task Shutdown_CompletesWithin30Seconds()
{
var fixture = OpcUaServerFixture.WithFakes();
await fixture.InitializeAsync();
var sw = Stopwatch.StartNew();
await fixture.DisposeAsync();
sw.Stop();
sw.Elapsed.TotalSeconds.ShouldBeLessThan(30);
}
[Fact]
public async Task WithFakes_BuildsAddressSpace()
{
var fixture = OpcUaServerFixture.WithFakes();
await fixture.InitializeAsync();
fixture.Service.GalaxyStatsInstance!.ObjectCount.ShouldBe(5);
fixture.Service.GalaxyStatsInstance.AttributeCount.ShouldBe(6);
fixture.Service.GalaxyStatsInstance.DbConnected.ShouldBe(true);
await fixture.DisposeAsync();
}
}
}