PCDE Migrate data solutions Practice Question
A company is migrating a PostgreSQL database to AlloyDB using DMS. They need to test the converted stored procedures. Which tool should they use to write and run unit tests for PL/pgSQL functions?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
pgTAP
pgTAP is a unit testing framework for PostgreSQL that allows writing tests in SQL/PL/pgSQL. It is suitable for testing stored procedures.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Cloud SQL Insights
Why it's wrong here
Provides performance insights, not unit testing.
- ✗
pgAdmin
Why it's wrong here
pgAdmin provides a graphical interface for browsing database objects and executing ad-hoc SQL queries, but it lacks a built-in unit testing framework for PL/pgSQL functions. The correct tool, such as pgTAP, offers dedicated assertion functions and test harnesses to validate stored procedure logic programmatically. pgAdmin is tempting because it can run individual function calls manually, which suffices for quick debugging or verifying output in a non-migration context, but it cannot automate repeatable tests against converted AlloyDB code.
- ✗
pg_stat_statements
Why it's wrong here
Used for query performance monitoring, not testing.
- ✓
pgTAP
Why this is correct
pgTAP is the standard unit testing framework for PostgreSQL.
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