TST (T-SQL Test Tool) is a tool that simplifies writing and running automated tests for code written in T-SQL. At the heart of the TST tool is the TST database. This database contains a series of stored procedures that represent a test API. Part of this API is similar with those found in Unit Testing libraries familiar to programmers in C# or Java.

TST Features:
1. Support for validating views as well as stored procedures and functions that return a table.
2. A reliable implementation of Assert.Equals / Assert.NotEquals procedures that detect when a comparison should not be made due to incompatibility of the data types. Additional procedures like Assert.NumericEquals, Assert.NumericNotEquals, Assert.FloatEquals, Assert.FloatNotEquals are provided.
3. Ability to run concurrent test sessions against the same or different databases.
4. Ability to produce XML results.
5. Automatic rollback of the database changes done during each test.
6. TST will detect when its own rollback mechanism becomes ineffective in some scenarios that involve testing code that uses transactions. The TST rollback can be disabled at the test, suite or global level.
7. No need to register the test stored procedures; they are picked up automatically by the TST test runners.
8. Can be run from the command prompt or directly by calling one of the test runner stored procedures.
9. The TST infrastructure is isolated in a separate database.
10. Easy to install and integrate with other test frameworks.
11. Does not have any dependencies besides SQL Server.
12. Very small learning curve for someone already familiar with T-SQL.

The license of this software is Free, you can free download and free use this database management software.