Re-enables BDD_SCHEMA_ISOLATION=true with the foundation from PR #34 (NewPostgresRepositoryFromDSN). Achieves ~2.85x speedup on the BDD test suite by running feature packages in parallel. ARCHITECTURE When BDD_SCHEMA_ISOLATION=true, each test package (process) gets its own isolated PostgreSQL schema: 1. testserver.Start() generates a deterministic schema name per FEATURE 2. CREATE SCHEMA <name> 3. Open a per-package gorm.DB with DSN search_path=<name> 4. AutoMigrate runs in the isolated schema (creates users table) 5. Build a per-package server.Server with this isolated repo via server.NewServerWithUserRepo 6. Stop() drops the schema + closes the per-package pool Packages then run in parallel (default Go test parallelism) without contention because each has its own schema + connection pool. CHANGES - pkg/server/server.go : NEW factory NewServerWithUserRepo(cfg, ctx, userRepo, userService) that injects a per-test repo. Existing NewServer becomes a thin wrapper. - pkg/bdd/testserver/server.go : Start() chooses isolated mode based on BDD_SCHEMA_ISOLATION env var. Stop() drops schema + closes pool. - pkg/user/postgres_repository.go : Exec(sql) helper for the schema lifecycle (CREATE/DROP) used by testserver. - scripts/run-bdd-tests.sh : -p 1 only when BDD_SCHEMA_ISOLATION!=true. When true, default Go parallelism (~ NumCPU packages concurrent). - .gitea/workflows/ci-cd.yaml : exports BDD_SCHEMA_ISOLATION=true. - adr/0025-bdd-scenario-isolation-strategies.md : Status to "Implemented". VALIDATION 5x AuthBDD with isolation: 5/5 PASS, public.users count=0 after runs. Local benchmark on the full features/... suite: - Sequential -p 1 (no isolation): 12.87s - Parallel + isolation (this PR): 4.51s - Speedup: 2.85x 🤖 Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Architecture Decision Records (ADRs)
This directory contains the Architecture Decision Records (ADRs) for the dance-lessons-coach project. Each ADR captures a structurally important decision, its context, and its consequences.
Index
| ADR | Title | Status |
|---|---|---|
| 0001 | Use Go 1.26.1 as the standard Go version | Accepted |
| 0002 | Use Chi router for HTTP routing | Accepted |
| 0003 | Use Zerolog for structured logging | Accepted |
| 0004 | Adopt interface-based design pattern | Accepted |
| 0005 | Implement graceful shutdown with readiness endpoints | Accepted |
| 0006 | Use Viper for configuration management | Accepted |
| 0007 | Integrate OpenTelemetry for distributed tracing | Accepted |
| 0008 | Adopt BDD with Godog for behavioral testing | Accepted |
| 0009 | Combine BDD and Swagger-based testing | Partially Implemented |
| 0010 | API v2 Feature Flag Implementation | Accepted |
| 0012 | Git Hooks: Staged-Only Formatting | Accepted |
| 0013 | OpenAPI/Swagger Toolchain Selection | Partially Implemented |
| 0015 | CLI Subcommands and Flag Management with Cobra | Implemented |
| 0016 | CI/CD Pipeline Design for Multi-Platform Compatibility | Accepted |
| 0017 | Trunk-Based Development Workflow for CI/CD Safety | Approved |
| 0018 | User Management and Authentication System | Proposed |
| 0019 | PostgreSQL Database Integration | Proposed |
| 0020 | Docker Build Strategy: Traditional vs Buildx | Accepted |
| 0021 | JWT Secret Retention Policy | Proposed |
| 0022 | Rate Limiting and Cache Strategy | Proposed |
| 0023 | Config Hot Reloading Strategy | Proposed |
| 0024 | BDD Test Organization and Isolation Strategy | Proposed |
| 0025 | BDD Scenario Isolation Strategies | Proposed |
Note
: numbers
0011and0014are not currently in use. Reserved for future ADRs or representing previously deleted entries.
What is an ADR?
An ADR is a document capturing one significant architectural decision: the context that motivated it, the decision itself, and its consequences. ADRs are append-only — once published, an ADR is not edited (except for typo / status updates). New decisions that supersede previous ones are recorded as new ADRs that explicitly link back.
Canonical Format
All ADRs follow the canonical format below (homogenized 2026-05-03):
# NN. Short title summarising the decision
**Status:** <Proposed | Accepted | Implemented | Partially Implemented | Approved | Rejected | Deferred | Deprecated | Superseded by ADR-NNNN>
**Date:** YYYY-MM-DD
**Authors:** Name(s)
[Optional fields, all in `**Field:** value` format:]
**Decision Drivers:** ...
**Implementation Status:** ...
**Implementation Date:** ...
**Last Updated:** ...
## Context and Problem Statement
[Describe the context and problem statement.]
## Decision Drivers
* Driver 1
* Driver 2
## Considered Options
* Option 1
* Option 2
## Decision Outcome
Chosen option: "Option 1" because [justification].
## Pros and Cons of the Options
### Option 1
* Good, because [argument].
* Bad, because [argument].
### Option 2
* Good, because [argument].
* Bad, because [argument].
## Links
* Related ADR: [ADR-NNNN](NNNN-slug.md)
* Issue: [#NN](https://gitea.arcodange.lab/arcodange/dance-lessons-coach/issues/NN)
Status Legend
| Status | Meaning |
|---|---|
| Proposed | Decision is being discussed; no implementation yet. |
| Accepted | Decision has been made; implementation may be pending or in progress. |
| Approved | Same as Accepted; alternative term used in some legacy ADRs. |
| Implemented | Decision is fully implemented and in production. |
| Partially Implemented | Decision is partly implemented; remainder is deferred or pending. |
| Rejected | Decision considered and explicitly rejected. The ADR documents why. |
| Deferred | Decision postponed; revisit later. |
| Deprecated | Decision is no longer relevant; system has moved on. |
| Superseded by ADR-NNNN | Decision has been replaced by another ADR. Always include the link. |
How to Add a New ADR
- Pick the next available number (currently next would be
0026). - Copy an existing ADR (e.g.,
0001-go-1.26.1-standard.md) as a starting template. - Edit the title, status, date, authors, and content.
- Update this
README.mdindex with the new ADR. - Commit using gitmoji convention (e.g.,
📝 docs(adr): add ADR-0026 about ...). - Open a PR for review.