Digitall.Testing 1.0.0-beta.16

Digitall.Testing

A comprehensive, in-memory testing framework for Microsoft Dataverse / Power Platform. It provides a lightweight IOrganizationService (and IOrganizationServiceAsync2) implementation that enables fast, deterministic unit tests without any connection to a live Dataverse environment.

Table of Contents

• Features
• Prerequisites
• Installation
• Quick Start
• Architecture Overview
• Core Components
  • FakeOrganizationService
  • FakeOrganizationServiceAsync
  • FakeDataverseBuilder
  • PluginExecutionContextBuilder
  • FakePluginContextBuilder
  • SpyOrganizationRequestFake
• Query Support
  • QueryExpression
  • QueryByAttribute
  • FetchXml
  • FetchXml Aggregation
  • LINQ Queries
• Organization Request Fakes
• Relationship Management
• Metadata Support
• Plugin Testing
• Configuration
• Project Structure
• Build & Test
• CI/CD & Release
• Contributing
• License

Features

Prerequisites

• .NET SDK 10.0+ (see global.json for exact version)
• IDE: JetBrains Rider, Visual Studio 2022+, or VS Code with C# Dev Kit

Installation

Install from NuGet:

dotnet add package Digitall.Testing

Or add to your .csproj:

<PackageReference Include="Digitall.Testing" Version="1.0.0-beta.*" />

Quick Start

Basic CRUD Test

using Microsoft.Xrm.Sdk;
using Microsoft.Xrm.Sdk.Query;
using Digitall.Testing;

public class AccountTests
{
    [Test]
    public void Should_CreateAndRetrieveEntity()
    {
        // Arrange — use the builder for a fully configured service
        var service = new FakeDataverseBuilder().GetOrganizationService();

        var account = new Entity("account") { ["name"] = "Contoso Ltd" };

        // Act
        var id = service.Create(account);
        var retrieved = service.Retrieve("account", id, new ColumnSet("name"));

        // Assert
        Assert.That(retrieved["name"], Is.EqualTo("Contoso Ltd"));
    }
}

Using Early-Bound Entities

Ensure your test assembly has the ProxyTypesAssembly attribute:

[assembly: Microsoft.Xrm.Sdk.Client.ProxyTypesAssembly]

Then use typed entities directly:

var service = new FakeDataverseBuilder().GetOrganizationService();
var account = new Account { Name = "Contoso Ltd" };
var id = service.Create(account);

Architecture Overview

┌─────────────────────────────────────────────────────────────┐
│                     Your Test Code                           │
├─────────────────────────────────────────────────────────────┤
│  FakeDataverseBuilder / FakePluginContextBuilder (Fluent)    │
├─────────────────────────────────────────────────────────────┤
│  FakeOrganizationServiceAsync (IOrganizationServiceAsync2)   │
│  └── FakeOrganizationService (IOrganizationService)          │
│       ├── RequestFakeRegistry → IOrganizationRequestFake     │
│       ├── EntityTypeResolver (reflection + caching)          │
│       ├── FakeOrganizationServiceState (entity store)        │
│       └── MetadataService (entity/relationship metadata)     │
├─────────────────────────────────────────────────────────────┤
│  Logic Layer                                                 │
│  ├── QueryProcessor (orchestrates query execution)           │
│  ├── ExpressionProcessor (filter/condition evaluation)       │
│  ├── LinkedEntitiesProcessor (JOIN logic)                    │
│  ├── FetchProcessor (FetchXml → QueryExpression)             │
│  ├── ConditionParser (50+ ConditionOperator types)           │
│  └── FetchAggregation (COUNT, SUM, AVG, MIN, MAX, grouping) │
└─────────────────────────────────────────────────────────────┘

Core Components

FakeOrganizationService

The central class implementing IOrganizationService. It provides:

• CRUD: Create, Retrieve, Update, Delete with proper error handling
• Queries: RetrieveMultiple supporting all three query types
• Relationships: Associate / Disassociate for 1:N and N:N
• Execute: Dispatches OrganizationRequest to registered IOrganizationRequestFake handlers
• Alternate Keys: Retrieve with KeyAttributeCollection support

var service = new FakeOrganizationService();
service.AddDefaultRequests(); // registers built-in request fakes

FakeOrganizationServiceAsync

Extends FakeOrganizationService with IOrganizationServiceAsync2, wrapping all operations in Task-returning methods with CancellationToken support. Ideal for testing code that uses IOrganizationServiceAsync or ServiceClient.

var service = new FakeOrganizationServiceAsync();
var id = await service.CreateAsync(entity, cancellationToken);

FakeDataverseBuilder

A fluent builder that creates a fully configured FakeOrganizationServiceAsync with default request fakes pre-registered:

var service = new FakeDataverseBuilder()
    .AddData(account, contact)              // pre-seed entities
    .AddEntityMetadata(accountMetadata)     // register metadata
    .AddRelationships(m2mRelationship)      // register relationships
    .LoadMetadata("./metadata/")            // load from XML files
    .GetOrganizationService();

Builder extension methods:

• .AddData(params Entity[]) — pre-seed the in-memory store
• .AddOrganizationRequests(params IOrganizationRequestFake[]) — register custom fakes
• .AddEntityMetadata(params EntityMetadata[]) — register entity metadata
• .AddRelationships(params RelationshipMetadataBase[]) — register relationships
• .LoadMetadata(string path) — load EntityMetadata from XML (file or directory)
• .AddConfig(key, envVar, defaultValue) — configure environment variables

PluginExecutionContextBuilder

Fluent builder for creating IServiceProvider instances configured for plugin testing:

var serviceProvider = new PluginExecutionContextBuilder(organizationService)
    .WithMessageName("Update")
    .WithStage(40)                          // Post-operation
    .WithMode(0)                            // Synchronous
    .WithTarget(targetEntity)
    .WithPreEntityImage(preImage)
    .WithPostEntityImage(postImage)
    .WithInputParameter("Target", entity)
    .WithOutputParameter("id", resultId)
    .WithSharedVariable("key", "value")
    .WithInitiatingUserId(userId)
    .WithDepth(1)
    .WithCorrelationId(correlationId)
    .BuildServiceProvider();

// Resolve plugin services
var context = (IPluginExecutionContext7)serviceProvider.GetService(typeof(IPluginExecutionContext7));
var factory = (IOrganizationServiceFactory)serviceProvider.GetService(typeof(IOrganizationServiceFactory));

FakePluginContextBuilder

Combines PluginExecutionContextBuilder with an auto-configured FakeOrganizationService, implementing IFakeDataverseBuilder<FakeOrganizationService>. Perfect for end-to-end plugin tests:

var builder = new FakePluginContextBuilder();

// Access the underlying service for data setup
var service = builder.GetOrganizationService();
service.Create(new Entity("account") { ["name"] = "Test" });

// Build the plugin context
var serviceProvider = builder
    .WithMessageName("Create")
    .WithTarget(entity)
    .BuildServiceProvider();

SpyOrganizationRequestFake

A generic spy that records all Execute calls and allows configuring return values:

// Create a spy for a custom request
var spy = new SpyOrganizationRequestFake<MyCustomRequest, MyCustomResponse>(
    (request, service) => new MyCustomResponse { Result = "OK" }
);

service.AddRequest(spy);

// Execute the request
service.Execute(new MyCustomRequest());

// Verify
Assert.That(spy.ReceivedRequests, Has.Count.EqualTo(1));

Query Support

QueryExpression

Full support for QueryExpression including:

• ColumnSet projection (specific columns or AllColumns)
• FilterExpression with nested And/Or logical operators
• 50+ ConditionOperators (Equal, NotEqual, Like, In, Between, Null, fiscal year operators, etc.)
• LinkEntity joins (Inner, LeftOuter) with nested link entities
• OrderExpression (ascending/descending on multiple attributes)
• Paging via PageInfo with proper MoreRecords and PagingCookie support
• TopCount limiting
• Distinct result filtering

var query = new QueryExpression("contact")
{
    ColumnSet = new ColumnSet("firstname", "lastname"),
    Criteria = new FilterExpression(LogicalOperator.And)
    {
        Conditions =
        {
            new ConditionExpression("statecode", ConditionOperator.Equal, 0),
            new ConditionExpression("lastname", ConditionOperator.Like, "Smith%")
        }
    },
    LinkEntities =
    {
        new LinkEntity("contact", "account", "parentcustomerid", "accountid", JoinOperator.Inner)
        {
            EntityAlias = "acc",
            Columns = new ColumnSet("name")
        }
    },
    Orders = { new OrderExpression("lastname", OrderType.Ascending) },
    PageInfo = new PagingInfo { Count = 50, PageNumber = 1, ReturnTotalRecordCount = true }
};

var result = service.RetrieveMultiple(query);

QueryByAttribute

Simplified attribute-based queries (internally converted to QueryExpression):

var query = new QueryByAttribute("account")
{
    ColumnSet = new ColumnSet("name", "revenue")
};
query.AddAttributeValue("statecode", 0);
query.AddAttributeValue("ownerid", userId);

var result = service.RetrieveMultiple(query);

FetchXml

Full FetchXml parsing with conversion to QueryExpression:

var fetchXml = @"
<fetch top='10'>
  <entity name='account'>
    <attribute name='name' />
    <attribute name='revenue' />
    <filter>
      <condition attribute='statecode' operator='eq' value='0' />
    </filter>
    <order attribute='name' />
  </entity>
</fetch>";

var result = service.RetrieveMultiple(new FetchExpression(fetchXml));

FetchXml Aggregation

Supports aggregate queries with grouping:

var fetchXml = @"
<fetch aggregate='true'>
  <entity name='opportunity'>
    <attribute name='estimatedvalue' alias='total_value' aggregate='sum' />
    <attribute name='ownerid' alias='owner' groupby='true' />
    <filter>
      <condition attribute='statecode' operator='eq' value='0' />
    </filter>
  </entity>
</fetch>";

var result = service.RetrieveMultiple(new FetchExpression(fetchXml));

Supported aggregates: count, countcolumn, sum, avg, min, max Grouping: By attribute value, by date (day, week, month, quarter, year, fiscal period/year)

LINQ Queries

// Early-bound
var accounts = service.CreateQuery<Account>()
    .Where(a => a.Name.StartsWith("Contoso"))
    .ToList();

// Late-bound
var contacts = service.CreateQuery("contact")
    .Where(c => (string)c["lastname"] == "Smith")
    .ToList();

Organization Request Fakes

Built-in fakes for common Dataverse operations:

Custom Request Fakes

Implement IOrganizationRequestFake or extend OrganizationRequestFake<TReq, TRes>:

public class MyCustomRequestFake : OrganizationRequestFake<MyCustomRequest, MyCustomResponse>
{
    public override MyCustomResponse Execute(MyCustomRequest request, FakeOrganizationService service)
    {
        // Custom logic
        return new MyCustomResponse { /* ... */ };
    }
}

// Register
service.AddRequest(new MyCustomRequestFake());

Relationship Management

1:N Relationships

// Register relationship metadata
service.AddRelationship(new OneToManyRelationshipMetadata
{
    SchemaName = "account_contacts",
    ReferencedEntity = "account",
    ReferencedAttribute = "accountid",
    ReferencingEntity = "contact",
    ReferencingAttribute = "parentcustomerid"
});

// Associate contacts to an account
service.Associate("account", accountId,
    new Relationship("account_contacts"),
    new EntityReferenceCollection
    {
        new EntityReference("contact", contactId1),
        new EntityReference("contact", contactId2)
    });

N:N Relationships

// Register M2M relationship
service.AddRelationship(new ManyToManyRelationshipMetadata
{
    SchemaName = "systemuser_account",
    Entity1LogicalName = "systemuser",
    Entity1IntersectAttribute = "systemuserid",
    Entity2LogicalName = "account",
    Entity2IntersectAttribute = "accountid",
    IntersectEntityName = "systemuser_account"
});

// Associate
service.Associate("account", accountId,
    new Relationship("systemuser_account"),
    new EntityReferenceCollection { new EntityReference("systemuser", userId) });

// Disassociate
service.Disassociate("account", accountId,
    new Relationship("systemuser_account"),
    new EntityReferenceCollection { new EntityReference("systemuser", userId) });

Metadata Support

Entity metadata enables type validation and relationship processing:

// Programmatic metadata registration
service.AddMetadata(new EntityMetadata
{
    LogicalName = "account",
    // ... attributes, relationships
});

// Load from serialized XML files (DataContractSerializer format)
var service = new FakeDataverseBuilder()
    .LoadMetadata("./metadata/account.xml")   // single file
    .LoadMetadata("./metadata/")              // all *.xml in directory
    .GetOrganizationService();

Plugin Testing

End-to-End Plugin Test

[Test]
public void MyPlugin_OnAccountUpdate_ShouldSetModifiedFlag()
{
    // Arrange
    var builder = new FakePluginContextBuilder();
    var service = builder.GetOrganizationService();

    var account = new Entity("account") { Id = Guid.NewGuid(), ["name"] = "Old Name" };
    service.Create(account);

    var target = new Entity("account") { Id = account.Id, ["name"] = "New Name" };

    var serviceProvider = builder
        .WithMessageName("Update")
        .WithStage(40)
        .WithTarget(target)
        .WithPreEntityImage(account, "PreImage")
        .BuildServiceProvider();

    // Act
    var plugin = new MyPlugin();
    plugin.Execute(serviceProvider);

    // Assert
    var updated = service.Retrieve("account", account.Id, new ColumnSet(true));
    Assert.That(updated["modifiedflag"], Is.True);
}

Testing with TimeProvider

using Microsoft.Extensions.Time.Testing;

var fakeTime = new FakeTimeProvider(new DateTimeOffset(2025, 1, 15, 10, 0, 0, TimeSpan.Zero));
var service = new FakeOrganizationService(fakeTime);

// Advance time in tests
fakeTime.Advance(TimeSpan.FromDays(30));

Configuration

The FakeOrganizationService uses environment variables for configurable behavior:

Configure via the builder:

var service = new FakeDataverseBuilder()
    .AddConfig("MaxRetrieveCount", "MaxRetrieveCount", "1000")
    .GetOrganizationService();

Project Structure

DigitallTesting/
├── src/Digitall.Testing/                    # Core library (NuGet package)
│   ├── FakeOrganizationService.cs           # IOrganizationService implementation
│   ├── FakeOrganizationServiceAsync.cs      # IOrganizationServiceAsync2 implementation
│   ├── FakeOrganizationServiceState.cs      # Internal entity store
│   ├── FakeDataverseBuilder.cs              # Fluent builder for service setup
│   ├── FakePluginContextBuilder.cs          # Combined plugin + service builder
│   ├── PluginExecutionContextBuilder.cs     # Plugin context configuration
│   ├── EntityTypeResolver.cs                # Early-bound type discovery & caching
│   ├── MetadataService.cs                   # Metadata cache management
│   ├── RequestFakeRegistry.cs               # Request handler registry
│   ├── SpyOrganizationRequestFake.cs        # Generic spy for request verification
│   ├── Extensions/                          # Extension methods
│   │   ├── EntityExtensions.cs              # Entity cloning, projection, joins
│   │   ├── FakeDataverseBuilderExtensions.cs # Builder fluent API
│   │   ├── PluginExecutionContextBuilderExtensions.cs
│   │   ├── QueryExpressionExtensions.cs     # Query helpers
│   │   ├── DateTimeExtensions.cs            # Fiscal year/date utilities
│   │   ├── DeepCloneExtensions.cs           # FastCloner integration
│   │   ├── TypeExtensions.cs                # Reflection helpers
│   │   └── XDocumentExtensions.cs           # FetchXml parsing
│   ├── Logic/                               # Query processing engine
│   │   ├── Queries/
│   │   │   ├── QueryProcessor.cs            # Query orchestration
│   │   │   ├── ExpressionProcessor.cs       # Filter evaluation
│   │   │   ├── ConditionParser.cs           # 50+ condition operators
│   │   │   ├── LinkedEntitiesProcessor.cs   # JOIN logic
│   │   │   ├── FetchProcessor.cs            # FetchXml → QueryExpression
│   │   │   ├── Validators.cs                # Type/attribute validation
│   │   │   └── FetchAggregation/            # Aggregate functions
│   │   │       ├── CountAggregate.cs
│   │   │       ├── SumAggregate.cs
│   │   │       ├── AvgAggregate.cs
│   │   │       ├── MinAggregate.cs
│   │   │       ├── MaxAggregate.cs
│   │   │       └── ...                      # Grouping support
│   │   └── XrmOrderByAttributeComparer.cs   # Sorting logic
│   ├── OrganizationRequests/                # Built-in request fakes
│   │   ├── IOrganizationRequestFake.cs      # Extension interface
│   │   ├── OrganizationRequestFake.cs       # Typed base class
│   │   ├── CreateFake.cs
│   │   ├── RetrieveFake.cs
│   │   ├── RetrieveMultipleFake.cs
│   │   ├── UpdateFake.cs
│   │   ├── DeleteFake.cs
│   │   ├── UpsertFake.cs
│   │   ├── AssociateFake.cs
│   │   ├── DisassociateFake.cs
│   │   ├── SetStateFake.cs
│   │   ├── AssignRequestFake.cs
│   │   ├── WhoAmIFake.cs
│   │   ├── RetrieveEntityFake.cs
│   │   ├── ExecuteTransactionFake.cs
│   │   └── BulkDeleteFake.cs
│   ├── Model/                               # Internal models
│   │   └── Target.cs                        # Plugin target wrapper
│   └── Errors/                              # Error infrastructure
│       ├── ErrorCodes.cs                    # Dataverse error code constants
│       └── ErrorFactory.cs                  # FaultException factory
├── tests/Digitall.Testing.Tests/            # Unit tests
│   ├── FakeOrganizationServiceTests.cs
│   ├── FakeDataverseBuilderTests.cs
│   ├── FakePluginContextBuilderTests.cs
│   ├── PluginExecutionContextBuilderTests.cs
│   ├── Extensions/                          # Extension method tests
│   ├── Logic/                               # Query processor tests
│   ├── OrganizationRequests/                # Request fake tests
│   └── Fixtures/                            # Test data and helpers
├── .github/workflows/                       # CI/CD
│   ├── build.yml                            # PR build + test
│   ├── release.yml                          # Semantic release + NuGet publish
│   ├── checks.yml                           # Additional checks
│   ├── codeql.yml                           # Security scanning
│   └── qodana_code_quality.yml              # JetBrains Qodana analysis
├── Directory.Build.props                    # Shared MSBuild properties & versioning
├── global.json                              # .NET SDK version pinning
├── package.json                             # semantic-release & commitlint config
└── qodana.yaml                              # Qodana configuration

Build & Test

# Restore dependencies
dotnet restore

# Build the solution
dotnet build --configuration Release

# Run all tests
dotnet test --configuration Release

# Run specific tests by filter
dotnet test --filter "Name~QueryProcessor"

# Run tests with detailed output
dotnet test -- --output Detailed

CI/CD & Release

This project uses semantic-release for automated versioning and publishing:

• Build workflow (build.yml): Runs on all non-release branches; builds and tests the solution.
• Release workflow (release.yml): Runs on main and beta branches; performs semantic versioning, NuGet publish, changelog generation, and GitHub release creation.
• Commit conventions: Conventional Commits enforced via commitlint and Husky git hooks.

Commit Message Format

type(scope): description

feat: add FetchXml aggregate support       → minor version bump
fix: correct paging cookie generation      → patch version bump
feat!: remove deprecated API               → major version bump

Contributing

1. Fork the repository
2. Create a feature branch (feat/my-feature)
3. Write tests for your changes
4. Ensure all tests pass (dotnet test)
5. Commit using Conventional Commits
6. Open a Pull Request

License

This project is licensed under the Microsoft Public License (MS-PL). See Licence.md for details.

© 2024 DIGITALL Nature GmbH