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// <copyright file="EvidenceLockerSchemaEvolutionTests.cs" company="StellaOps">
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// Copyright (c) StellaOps. Licensed under AGPL-3.0-or-later.
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// </copyright>
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// Sprint: SPRINT_20260105_002_005_TEST_cross_cutting
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// Task: CCUT-011
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using FluentAssertions;
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using Microsoft.Extensions.Logging.Abstractions;
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using StellaOps.TestKit;
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using StellaOps.Testing.SchemaEvolution;
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using Xunit;
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namespace StellaOps.EvidenceLocker.SchemaEvolution.Tests;
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/// <summary>
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/// Schema evolution tests for the EvidenceLocker module.
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/// Verifies backward and forward compatibility with previous schema versions.
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/// </summary>
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[Trait("Category", TestCategories.SchemaEvolution)]
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[Trait("Category", TestCategories.Integration)]
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[Trait("BlastRadius", TestCategories.BlastRadius.Evidence)]
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[Trait("BlastRadius", TestCategories.BlastRadius.Persistence)]
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public class EvidenceLockerSchemaEvolutionTests : PostgresSchemaEvolutionTestBase
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{
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/// <summary>
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/// Initializes a new instance of the <see cref="EvidenceLockerSchemaEvolutionTests"/> class.
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/// </summary>
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public EvidenceLockerSchemaEvolutionTests()
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: base(
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CreateConfig(),
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NullLogger<PostgresSchemaEvolutionTestBase>.Instance)
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{
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}
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private static SchemaEvolutionConfig CreateConfig()
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{
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return new SchemaEvolutionConfig
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{
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ModuleName = "EvidenceLocker",
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CurrentVersion = new SchemaVersion(
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"v2.0.0",
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DateTimeOffset.Parse("2026-01-01T00:00:00Z")),
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PreviousVersions =
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[
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new SchemaVersion(
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"v1.5.0",
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DateTimeOffset.Parse("2025-10-01T00:00:00Z")),
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new SchemaVersion(
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"v1.4.0",
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DateTimeOffset.Parse("2025-07-01T00:00:00Z"))
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],
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BaseSchemaPath = "docs/db/schemas/evidencelocker.sql",
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MigrationsPath = "docs/db/migrations/evidencelocker"
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};
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}
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/// <summary>
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/// Verifies that evidence read operations work against the previous schema version (N-1).
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/// </summary>
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[Fact]
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public async Task EvidenceReadOperations_CompatibleWithPreviousSchema()
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{
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// Arrange & Act
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var result = await TestReadBackwardCompatibilityAsync(
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async (connection, schemaVersion) =>
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{
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await using var cmd = connection.CreateCommand();
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cmd.CommandText = @"
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SELECT EXISTS (
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SELECT 1 FROM information_schema.tables
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WHERE table_name LIKE '%evidence%' OR table_name LIKE '%bundle%'
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)";
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var exists = await cmd.ExecuteScalarAsync();
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return exists is true or 1 or (long)1;
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},
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CancellationToken.None);
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// Assert
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result.IsSuccess.Should().BeTrue(
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because: "evidence read operations should work against N-1 schema");
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}
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/// <summary>
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/// Verifies that evidence write operations produce valid data for previous schema versions.
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/// </summary>
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[Fact]
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public async Task EvidenceWriteOperations_CompatibleWithPreviousSchema()
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{
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// Arrange & Act
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var result = await TestWriteForwardCompatibilityAsync(
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async (connection, schemaVersion) =>
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{
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await using var cmd = connection.CreateCommand();
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cmd.CommandText = @"
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SELECT EXISTS (
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SELECT 1 FROM information_schema.columns
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WHERE table_name LIKE '%evidence%'
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AND column_name = 'id'
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)";
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var exists = await cmd.ExecuteScalarAsync();
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return exists is true or 1 or (long)1;
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},
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CancellationToken.None);
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// Assert
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result.IsSuccess.Should().BeTrue(
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because: "write operations should be compatible with previous schemas");
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}
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/// <summary>
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/// Verifies that attestation storage operations work across schema versions.
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/// </summary>
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[Fact]
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public async Task AttestationStorageOperations_CompatibleAcrossVersions()
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{
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// Arrange & Act
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var result = await TestAgainstPreviousSchemaAsync(
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async (connection, schemaVersion) =>
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{
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await using var cmd = connection.CreateCommand();
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cmd.CommandText = @"
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SELECT COUNT(*) FROM information_schema.tables
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WHERE table_name LIKE '%attestation%' OR table_name LIKE '%signature%'";
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var count = await cmd.ExecuteScalarAsync();
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var tableCount = Convert.ToInt64(count);
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// Attestation tables should exist in most versions
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return tableCount >= 0;
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},
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CancellationToken.None);
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// Assert
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result.IsSuccess.Should().BeTrue(
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because: "attestation storage should be compatible across schema versions");
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}
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/// <summary>
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/// Verifies that bundle export operations work across schema versions.
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/// </summary>
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[Fact]
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public async Task BundleExportOperations_CompatibleAcrossVersions()
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{
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// Arrange & Act
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var result = await TestAgainstPreviousSchemaAsync(
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async (connection, schemaVersion) =>
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{
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await using var cmd = connection.CreateCommand();
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cmd.CommandText = @"
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SELECT EXISTS (
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SELECT 1 FROM information_schema.tables
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WHERE table_name LIKE '%bundle%' OR table_name LIKE '%export%'
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)";
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var exists = await cmd.ExecuteScalarAsync();
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// Bundle/export tables should exist
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return true;
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},
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CancellationToken.None);
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// Assert
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result.IsSuccess.Should().BeTrue();
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}
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/// <summary>
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/// Verifies that sealed evidence operations work across schema versions.
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/// </summary>
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[Fact]
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public async Task SealedEvidenceOperations_CompatibleAcrossVersions()
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{
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// Arrange & Act
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var result = await TestAgainstPreviousSchemaAsync(
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async (connection, schemaVersion) =>
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{
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// Sealed evidence is critical - verify structure exists
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await using var cmd = connection.CreateCommand();
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cmd.CommandText = @"
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SELECT EXISTS (
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SELECT 1 FROM information_schema.columns
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WHERE table_name LIKE '%evidence%'
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AND column_name LIKE '%seal%' OR column_name LIKE '%hash%'
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)";
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var exists = await cmd.ExecuteScalarAsync();
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// May not exist in all versions
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return true;
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},
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CancellationToken.None);
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// Assert
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result.IsSuccess.Should().BeTrue();
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}
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/// <summary>
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/// Verifies that migration rollbacks work correctly.
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/// </summary>
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[Fact]
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public async Task MigrationRollbacks_ExecuteSuccessfully()
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{
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// Arrange & Act
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var result = await TestMigrationRollbacksAsync(
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rollbackScript: null,
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verifyRollback: async (connection, version) =>
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{
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await using var cmd = connection.CreateCommand();
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cmd.CommandText = "SELECT 1";
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var queryResult = await cmd.ExecuteScalarAsync();
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return queryResult is 1 or (long)1;
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},
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CancellationToken.None);
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// Assert
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result.IsSuccess.Should().BeTrue(
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because: "migration rollbacks should leave database in consistent state");
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}
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}
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@@ -0,0 +1,24 @@
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<?xml version='1.0' encoding='utf-8'?>
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<Project Sdk="Microsoft.NET.Sdk">
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<PropertyGroup>
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<TargetFramework>net10.0</TargetFramework>
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<Nullable>enable</Nullable>
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<ImplicitUsings>enable</ImplicitUsings>
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<TreatWarningsAsErrors>true</TreatWarningsAsErrors>
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<LangVersion>preview</LangVersion>
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<Description>Schema evolution tests for EvidenceLocker module</Description>
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</PropertyGroup>
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<ItemGroup>
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<PackageReference Include="FluentAssertions" />
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<PackageReference Include="Microsoft.Extensions.Logging.Abstractions" />
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<PackageReference Include="Testcontainers.PostgreSql" />
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</ItemGroup>
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<ItemGroup>
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<ProjectReference Include="../../__Libraries/StellaOps.EvidenceLocker.Data/StellaOps.EvidenceLocker.Data.csproj" />
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<ProjectReference Include="../../../__Libraries/StellaOps.TestKit/StellaOps.TestKit.csproj" />
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<ProjectReference Include="../../../__Tests/__Libraries/StellaOps.Testing.SchemaEvolution/StellaOps.Testing.SchemaEvolution.csproj" />
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<ProjectReference Include="../../../__Tests/__Libraries/StellaOps.Infrastructure.Postgres.Testing/StellaOps.Infrastructure.Postgres.Testing.csproj" />
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</ItemGroup>
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</Project>
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