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pgTAP

pgTAP is ranked #8 of 26 in database testing tools on Freedom251. It runs on Linux, Self-hosted.

Compared on database testing tools

Free plan: Yes
Database support: PostgreSQL
Schema migration tests: Yes
Stored procedure tests: Yes
Data quality checks: Yes
Test execution: self_hosted
Test language: SQL, PL/pgSQL, PL/SQL

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pgTAP

Purpose: pgTAP is a suite of database functions for writing TAP-emitting unit tests for PostgreSQL.
Test styles: It supports tests in psql scripts and xUnit-style test functions.
Schema testing: Its functions can check database schema objects, including tables, columns, primary keys, and function signatures.
Database behavior: Tests can exercise database views, procedures, functions, rules, and triggers.
Test output: pgTAP emits TAP output that can be collected and reported by a TAP harness.
Test runner: The pgTAP site describes running tests with pg_prove.
Integrations: The integration guide provides instructions for Perl and PostgreSQL module workflows, and mentions PHP and Python testing frameworks.
Test isolation: The xUnit-style runtests() function rolls back changes made to the schema during each test and supports setup, teardown, startup, and shutdown functions.
Installation: pgTAP must be installed on a host running PostgreSQL and cannot be installed remotely.
PostgreSQL requirement: The release page says pgTAP requires PostgreSQL 9.1 or higher.
License: The release page grants permission to use, copy, modify, and distribute the software and documentation without fee, subject to its stated conditions.
Support: The license says the author has no obligation to provide maintenance, support, updates, enhancements, or modifications.
Database testing: Its assertion functions can test database values and exercise views, procedures, functions, rules, and triggers.
Integration guidance: The integration page mentions PHP and Python testing frameworks but says users should send instructions for those integrations to the project's mailing list.

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Where it ranks on Freedom251

Best Database Testing Tools in 2026#8 of 26

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Sources

pgtap.org· checked 2 Oct 2026
pgtap.org/integration.html· checked 2 Oct 2026
pgxn.org/dist/pgtap/· checked 2 Oct 2026