Stratara.Testing.EntityFrameworkCore 3.1.2

dotnet add package Stratara.Testing.EntityFrameworkCore --version 3.1.2
                    
NuGet\Install-Package Stratara.Testing.EntityFrameworkCore -Version 3.1.2
                    
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="Stratara.Testing.EntityFrameworkCore" Version="3.1.2" />
                    
For projects that support PackageReference, copy this XML node into the project file to reference the package.
<PackageVersion Include="Stratara.Testing.EntityFrameworkCore" Version="3.1.2" />
                    
Directory.Packages.props
<PackageReference Include="Stratara.Testing.EntityFrameworkCore" />
                    
Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package.
paket add Stratara.Testing.EntityFrameworkCore --version 3.1.2
                    
#r "nuget: Stratara.Testing.EntityFrameworkCore, 3.1.2"
                    
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.
#:package Stratara.Testing.EntityFrameworkCore@3.1.2
                    
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package.
#addin nuget:?package=Stratara.Testing.EntityFrameworkCore&version=3.1.2
                    
Install as a Cake Addin
#tool nuget:?package=Stratara.Testing.EntityFrameworkCore&version=3.1.2
                    
Install as a Cake Tool

Stratara.Testing.EntityFrameworkCore

Spin up the real Stratara event-sourcing write stack — IEventSource, IAggregationService, snapshots, and the EF Core write store — against a shared in-memory SQLite database, in one call. You exercise production code paths (real serialization, real version tracking, real unique constraints) without Postgres or Docker.

Builds on Stratara.Testing: the cross-cutting dependencies are wired with its in-memory doubles (InMemoryKeyStore, TestSessionContextProvider).

Why not a hand-rolled in-memory IEventSource?

Because a bespoke fake would drift from production (subject resolution, concurrency detection, outbox dispatch, snapshots). This package runs the genuine EventSource on SQLite instead, so your tests verify the real behavior.

Example

await using var host = EventStoreTestHost.Create(s =>
    s.AddAggregatesFromAssemblyContaining<Account>());

await host.ExecuteAsync(async events =>
{
    await events.CreateAsync<Account>(id, new AccountOpened(id, tenantId, "Ada", 100m));
    await events.AppendAsync<Account>(id, new AmountWithdrawn(30m));
    await events.SaveChangesAsync();
});

var account = await host.AggregateAsync<Account>(id);
Assert.Equal(70m, account!.Balance);
Assert.Single(host.Outbox.Bundles);   // the SaveChanges emitted one bundle

Contents

  • EventStoreTestHost — owns a shared open SQLite connection + a configured service provider; exposes ExecuteAsync(IEventSource), AggregateAsync<T>(streamId), the preset Session, and the recording Outbox. IAsyncDisposable.
  • AddStrataraTestingEventStore<TWriteDbContext>(connection, tenantId) — the lower-level DI extension if you compose the provider yourself.
  • StrataraTestWriteDbContext — a ready-made concrete write context (no subclass boilerplate).
  • RecordingEventBundleOutboxDispatcher — captures emitted bundles for assertions.

Notes

  • The SQLite connection is :memory: and shared across every DbContext the unit of work mints — it must stay open for the host's lifetime (the host manages this; dispose it when done).
  • Register your aggregates (AddAggregatesFromAssemblyContaining<T>()) so event payload types deserialize on rehydration.

Dependencies

  • Stratara.Testing, Stratara.Infrastructure, Stratara.EventSourcing.EntityFrameworkCore, Stratara.Shared, Stratara.Abstractions, Stratara.Contracts
  • Microsoft.EntityFrameworkCore.Sqlite

Reference it from test projects only.

Product Compatible and additional computed target framework versions.
.NET net10.0 is compatible.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

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Version Downloads Last Updated
3.1.2 49 6/5/2026

### Added

- **New package `Stratara.Testing`** — test doubles and assertion helpers so consumers can
 unit-test Stratara-based code without Postgres or RabbitMQ testcontainers. Reference it from
 test projects only.
 - `AggregateTestHarness<T>` + `Aggregate.Rehydrate<T>(...)` — given/when/then rehydration of an
   aggregate from events using the same reflection-based `Apply(...)` dispatch as the production
   aggregation service. It throws on an event with no matching `Apply` overload so a forgotten or
   mistyped overload fails the test; opt back into the production-lenient skip with
   `IgnoringUnmappedEvents()`.
 - `InMemoryKeyStore` — an `IKeyStore` that mints random 256-bit DEKs per `KeyScope` and supports
   rotation / revocation / scope-erasure without a master KEK or key file.
 - `TestBlobEncryptor.CreateAesGcm()` — the real AES-GCM `ISecureBlobEncryptor` over an
   `InMemoryKeyStore`, so blob round-trips exercise production encryption.
 - `InMemoryMessageBus` — an `IMessageBus` with synchronous in-process dispatch and a `Published`
   list for assertions.
 - `TestSessionContext` / `TestSessionContextProvider` — preset Actor/Subject `SessionContext`
   values and an `ISessionContextProvider` double.
 - `TestTenants.Of("acme")` — stable, deterministic tenant/user ids from readable slugs.
   `TestSessionContext` sets both correlation and causation ids so the context can drive
   event-store writes.
 - `TestEvent.Create(payload, ...)` — wrap an event payload in `IEvent<T>` with realistic
   metadata; `ProjectionTester.HandleAsync(projection, event)` — invoke a projection's private
   `HandleAsync` handler directly to unit-test it against mocked repositories.
- **New package `Stratara.Testing.EntityFrameworkCore`** — spins up the **real** event-sourcing
 write stack (`IEventSource`, `IAggregationService`, snapshots, the EF Core write store) against a
 shared in-memory SQLite database in one call, so tests exercise production code paths without
 Postgres or Docker. Reference it from test projects only.
 - `EventStoreTestHost.Create(...)` — owns the SQLite connection + service provider; exposes
   `ExecuteAsync(IEventSource)`, `AggregateAsync<T>(streamId)`, the preset `Session`, and the
   recording `Outbox`.
 - `AddStrataraTestingEventStore<TWriteDbContext>(connection, tenantId)` — the lower-level DI
   extension; `StrataraTestWriteDbContext` — a ready-made concrete write context;
   `RecordingEventBundleOutboxDispatcher` — captures emitted bundles for assertions.
 - The lockstep family grows from 22 to 24 packable packages.