99 lines
3.3 KiB
C#
99 lines
3.3 KiB
C#
using Shouldly;
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using Xunit;
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using ZB.MOM.WW.OtOpcUa.Configuration.Entities;
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using ZB.MOM.WW.OtOpcUa.Configuration.Enums;
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using ZB.MOM.WW.OtOpcUa.ControlPlane.AdminOperations;
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using ZB.MOM.WW.OtOpcUa.ControlPlane.Tests.Harness;
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namespace ZB.MOM.WW.OtOpcUa.ControlPlane.Tests;
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public sealed class ConfigComposerTests : ControlPlaneActorTestBase
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{
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[Fact]
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public async Task Empty_database_produces_stable_hash()
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{
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var f = NewInMemoryDbFactory();
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await using var db1 = f.CreateDbContext();
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var a1 = await ConfigComposer.SnapshotAndFlattenAsync(db1);
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await using var db2 = f.CreateDbContext();
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var a2 = await ConfigComposer.SnapshotAndFlattenAsync(db2);
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a1.RevisionHash.ShouldBe(a2.RevisionHash);
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a1.Blob.ShouldBe(a2.Blob);
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}
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[Fact]
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public async Task Same_rows_in_different_insert_orders_produce_same_hash()
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{
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var name = Guid.NewGuid().ToString("N");
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var f = NewInMemoryDbFactory(name);
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await using (var db = f.CreateDbContext())
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{
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db.ServerClusters.Add(NewCluster("cluster-a"));
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db.ServerClusters.Add(NewCluster("cluster-b"));
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await db.SaveChangesAsync();
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}
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var hashAB = (await ConfigComposer.SnapshotAndFlattenAsync(f.CreateDbContext())).RevisionHash;
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// Fresh DB, same rows in reverse insertion order.
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var f2 = NewInMemoryDbFactory();
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await using (var db = f2.CreateDbContext())
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{
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db.ServerClusters.Add(NewCluster("cluster-b"));
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db.ServerClusters.Add(NewCluster("cluster-a"));
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await db.SaveChangesAsync();
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}
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var hashBA = (await ConfigComposer.SnapshotAndFlattenAsync(f2.CreateDbContext())).RevisionHash;
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hashAB.ShouldBe(hashBA);
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}
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[Fact]
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public async Task Different_data_produces_different_hash()
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{
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var f = NewInMemoryDbFactory();
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await using (var db = f.CreateDbContext())
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{
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db.ServerClusters.Add(NewCluster("cluster-a"));
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await db.SaveChangesAsync();
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}
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var hashA = (await ConfigComposer.SnapshotAndFlattenAsync(f.CreateDbContext())).RevisionHash;
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await using (var db = f.CreateDbContext())
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{
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db.ServerClusters.Add(NewCluster("cluster-b"));
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await db.SaveChangesAsync();
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}
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var hashAB = (await ConfigComposer.SnapshotAndFlattenAsync(f.CreateDbContext())).RevisionHash;
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hashAB.ShouldNotBe(hashA);
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}
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[Fact]
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public async Task Hash_is_64_lowercase_hex_chars()
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{
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var f = NewInMemoryDbFactory();
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var artifact = await ConfigComposer.SnapshotAndFlattenAsync(f.CreateDbContext());
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artifact.RevisionHash.Length.ShouldBe(64);
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artifact.RevisionHash.ShouldMatch("^[0-9a-f]{64}$");
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}
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private static readonly DateTime FixedTimestamp = new(2026, 1, 1, 0, 0, 0, DateTimeKind.Utc);
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private static ServerCluster NewCluster(string id) => new()
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{
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ClusterId = id,
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Name = id,
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Enterprise = "ent",
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Site = "site",
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RedundancyMode = RedundancyMode.None,
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CreatedBy = "test",
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// Pin every timestamp so two harnesses produce byte-identical snapshots when the logical
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// content matches. Production rows get real DateTime.UtcNow — divergence there is correct.
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CreatedAt = FixedTimestamp,
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};
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}
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