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planning-oracle-to-postgres-migration-integration-testing

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by github · part of github/awesome-copilot

Creates an integration testing plan for .NET data access artifacts during Oracle-to-PostgreSQL database migrations. Analyzes a single project to identify repositories, DAOs, and service layers that interact with the database, then produces a structured testing plan. Use when planning integration test coverage for a migrated project, identifying which data access methods need tests, or preparing for Oracle-to-PostgreSQL migration validation.

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🧩 One of 7 skills in the github/awesome-copilot package — works on its own, and pairs well with its siblings.

This is the playbook your agent receives when the skill activates — you don't need to read it to use the skill, but it's here to audit before installing.

Planning Integration Testing for Oracle-to-PostgreSQL Migration

Analyze a single target project to identify data access artifacts that require integration testing, then produce a structured, actionable testing plan.

Workflow

Progress:
- [ ] Step 1: Identify data access artifacts
- [ ] Step 2: Classify testing priorities
- [ ] Step 3: Write the testing plan

Step 1: Identify data access artifacts

Scope to the target project only. Find classes and methods that interact directly with the database — repositories, DAOs, stored procedure callers, service layers performing CRUD operations.

Step 2: Classify testing priorities

Rank artifacts by migration risk. Prioritize methods that use Oracle-specific features (refcursors, TO_CHAR, implicit type coercion, NO_DATA_FOUND) over simple CRUD.

Step 3: Write the testing plan

Write a markdown plan covering:

  • List of testable artifacts with method signatures
  • Recommended test cases per artifact
  • Seed data requirements
  • Known Oracle→PostgreSQL behavioral differences to validate
  • Coverage mapping that ensures every database touchpoint has at least one test case (or a justified set of cases for high-risk methods)

When defining recommended test cases, explicitly include:

  • Text parameter behavior for both empty string and NULL/missing values.
  • Datetime/timezone assertions, including round-trip and comparison behavior.
  • Cases where destination columns use timestamp without time zone or timestamp(0), with explicit timezone-application expectations.

Output

Write the plan to: .github/oracle-to-postgres-migration/Reports/{TARGET_PROJECT} Integration Testing Plan.md

Key Constraints

  • Single project scope — only plan tests for artifacts within the target project.
  • Database interactions only — skip business logic that does not touch the database.
  • Oracle is the golden source — tests should capture Oracle's expected behavior for comparison against PostgreSQL.
  • No multi-connection harnessing — migrated applications are copied and renamed (e.g., MyApp.Postgres), so each instance targets one database.