apex-database-layer

Welcome to apex-database-layer, an open-source library used to easily mock Salesforce database operations in Apex.

Features

Apex Database Layer was designed to be feature-rich, yet easy to use, closely mirroring standard platform patterns.

You get the following out of the box:

• Support for all standard Database class DML & SOQL operations
• Easily mock DML operations and SOQL queries.
• A Query framework that enables strongly-typed, yet dynamic SOQL queries.
• Easily generate test records without using DML or SOQL.
• Switch between real & mock database operations in Apex Tests, with a single line of code
• An optional Plugin Framework allows you to fine-tune the platform to your exact use case.
• Simplicity: The framework uses just a couple of Apex classes (and a custom metadata type, to support Plugins).

Best of all, the framework is built 100% on the Salesforce platform, using standard Salesforce technology. It's open source, and free, and it always will be.

Installation

apex-database-layer is available for free. It can be downloaded in one of two flavors:

• As an unlocked package with no namespace
• As a managed package, using the apxsp namespace

You can find the latest or past versions in the Releases tab.

Use the following command to install the package in your environment:

sf package install --package {{package_version_id}} --wait 10

Usage

Once intalled, use DatabaseLayer.Dml for all of your DML operations:

// Don't use these standard apex DML methods:
insert account;
Database.insert(account);
// Use this instead:
DatabaseLayer.Dml.doInsert(account);

Use DatabaseLayer.Soql for all of your SOQL queries:

List<Account> accounts = (List<Account>) DatabaseLayer.Soql.newQuery(Account.SObjectType)
  ?.addSelect(Account.Name)
  ?.addWhere(Account.OwnerId, Soql.EQUALS, UserInfo.getUserId())
  ?.orderBy(Account.LastModifiedDate, Soql.SortDirection.DESCENDING)
  ?.setRowLimit(200)
  ?.toSoql()
  ?.query();

Once this is done, you can instantly decouple your Dml and Soql operations from the Salesforce database in apex tests, with just a single line of code:

DatabaseLayer.useMocks();

In apex tests, you can easily generate test records for use in mocks, that would otherwise require extensive database operations:

// This operation takes ~2ms; would require 4 separate DML operations otherwise:
OpportunityContactRole contactRole = (OpportunityContactRole) new MockRecord(OpportunityContactRole.SObjectType)
  ?.withId()
  ?.toSObject();

Want To Learn More?

Head over to our wiki, which includes articles about:

• Mocking database operations, and why it's important
• Techniques for mocking using the framework
• Documentation for all public classes & methods