Class ServiceCollectionDbProviderExtensions

Namespace

Trellis.Testing

Assembly

Trellis.Testing.dll

Extension methods for IServiceCollection that simplify replacing EF Core database provider registrations in integration tests.

public static class ServiceCollectionDbProviderExtensions

Inheritance

object

ServiceCollectionDbProviderExtensions

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Methods

ReplaceDbProvider<TContext>(IServiceCollection, Action<DbContextOptionsBuilder>)

Removes all existing EF Core provider registrations for TContext and re-registers with a new provider configuration via AddDbContext. Use this in WebApplicationFactory tests to swap a production database provider (e.g., SQL Server) for a lightweight test provider (e.g., SQLite in-memory).

public static IServiceCollection ReplaceDbProvider<TContext>(this IServiceCollection services, Action<DbContextOptionsBuilder> configureOptions) where TContext : DbContext

Parameters

services IServiceCollection

The service collection to modify.

configureOptions Action<DbContextOptionsBuilder>

An action to configure the new DbContextOptionsBuilder.

Returns

IServiceCollection

The same IServiceCollection for chaining.

Type Parameters

TContext

The DbContext type to replace.

Examples

builder.ConfigureServices(services =>
    services.ReplaceDbProvider<AppDbContext>(options =>
        options.UseSqlite(connection).AddTrellisInterceptors()));

Remarks

This method always re-registers using AddDbContext<TContext>. If the application registers the context via AddDbContextFactory or AddPooledDbContextFactory, use those APIs directly instead of this helper.