squidex/backend/tests/Squidex.Domain.Apps.Entities.Tests/Rules/DomainObject/RuleCommandMiddlewareTests.cs

// ==========================================================================
//  Squidex Headless CMS
// ==========================================================================
//  Copyright (c) Squidex UG (haftungsbeschraenkt)
//  All rights reserved. Licensed under the MIT license.
// ==========================================================================

using FakeItEasy;
using Squidex.Domain.Apps.Entities.Rules.Commands;
using Squidex.Domain.Apps.Entities.TestHelpers;
using Squidex.Infrastructure;
using Squidex.Infrastructure.Commands;
using Xunit;

namespace Squidex.Domain.Apps.Entities.Rules.DomainObject
{
    public sealed class RuleCommandMiddlewareTests : HandlerTestBase<RuleDomainObject.State>
    {
        private readonly IDomainObjectFactory domainObjectFactory = A.Fake<IDomainObjectFactory>();
        private readonly IRuleEnricher ruleEnricher = A.Fake<IRuleEnricher>();
        private readonly IContextProvider contextProvider = A.Fake<IContextProvider>();
        private readonly DomainId ruleId = DomainId.NewGuid();
        private readonly Context requestContext;
        private readonly RuleCommandMiddleware sut;

        public sealed class MyCommand : SquidexCommand
        {
        }

        protected override DomainId Id
        {
            get => ruleId;
        }

        public RuleCommandMiddlewareTests()
        {
            requestContext = Context.Anonymous(Mocks.App(AppNamedId));

            A.CallTo(() => contextProvider.Context)
                .Returns(requestContext);

            sut = new RuleCommandMiddleware(domainObjectFactory, ruleEnricher, contextProvider);
        }

        [Fact]
        public async Task Should_not_invoke_enricher_for_other_actual()
        {
            await HandleAsync(new EnableRule(), 12);

            A.CallTo(() => ruleEnricher.EnrichAsync(A<IEnrichedRuleEntity>._, requestContext, default))
                .MustNotHaveHappened();
        }

        [Fact]
        public async Task Should_not_invoke_enricher_if_already_enriched()
        {
            var actual = new RuleEntity();

            var context =
                await HandleAsync(new EnableRule(),
                    actual);

            Assert.Same(actual, context.Result<IEnrichedRuleEntity>());

            A.CallTo(() => ruleEnricher.EnrichAsync(A<IEnrichedRuleEntity>._, requestContext, default))
                .MustNotHaveHappened();
        }

        [Fact]
        public async Task Should_enrich_rule_actual()
        {
            var actual = A.Fake<IRuleEntity>();

            var enriched = new RuleEntity();

            A.CallTo(() => ruleEnricher.EnrichAsync(actual, requestContext, default))
                .Returns(enriched);

            var context =
                await HandleAsync(new EnableRule(),
                    actual);

            Assert.Same(enriched, context.Result<IEnrichedRuleEntity>());
        }

        private Task<CommandContext> HandleAsync(RuleCommand command, object actual)
        {
            command.RuleId = ruleId;

            CreateCommand(command);

            var domainObject = A.Fake<RuleDomainObject>();

            A.CallTo(() => domainObject.ExecuteAsync(A<IAggregateCommand>._, A<CancellationToken>._))
                .Returns(new CommandResult(command.AggregateId, 1, 0, actual));

            A.CallTo(() => domainObjectFactory.Create<RuleDomainObject>(command.AggregateId))
                .Returns(domainObject);

            return HandleAsync(sut, command);
        }
    }
}