supabase-test-harness

name	supabase-test-harness
description	Supabase test harness patterns including local Supabase setup, test user creation via Auth Admin API, RLS testing, migration testing (db_reset), seed sequences, rate limiting, and environment detection. Use when setting up Supabase testing infrastructure, creating test users, troubleshooting Supabase test failures, or implementing RLS validation. Triggers on: supabase test setup, test user creation, supabase local testing, RLS testing, migration testing, supabase test harness, auth test helpers.
allowed-tools	["Read"]
triggers	["supabase test setup","test user creation","supabase local testing","RLS testing","migration testing","supabase test harness","auth test helpers","supabase db reset test","supabase seed sequence","auth admin api test","supabase rate limiting"]
version	1.0.0

===SUPABASE_TEST_HARNESS=== META: TYPE::SKILL VERSION::"1.0.0" STATUS::ACTIVE PURPOSE::"Supabase test harness patterns: local setup, Auth Admin API test users, RLS validation, migration testing, seed sequences, rate limiting, environment detection"

SUPABASE_TEST_MASTERY::[LOCAL_SETUP+AUTH_ADMIN_API+RLS_VALIDATION+MIGRATION_TESTING+SEED_SEQUENCES]→PRODUCTION_READY

§1::PRIMARY_SOURCE_MANDATORY_FIRST

SOURCE::.hestai/state/context/test-context/RULES.md PRINCIPLE::"POC-proven pattern post-it note — ALWAYS consult BEFORE infrastructure decisions"

CONTAINS::[ supabase_setup[local_env], test_users[standardized_credentials], migration_testing[supabase_db_reset], fail_fast_guards ]

§2::DETAILED_DOCUMENTATION

SUPABASE_HARNESS::.hestai/state/context/test-context/SUPABASE-TEST-HARNESS.md→[ local_setup[docker∨cli], test_user_creation[auth_admin_api], RLS_testing, seed_procedures, preview_branch_integration, env_config ]

§3::POC_REFERENCE_WHEN_NEEDED

PROVEN_INFRASTRUCTURE::"/Volumes/HestAI-Projects/eav-ops/eav-apps/scripts-web/src/test/" FILES::[ supabase-test-client.ts::"Test client with environment detection, fail-fast guards", auth-helpers.ts::"Auth utilities with rate limiting (750ms delay)" ]

OPERATIONAL_SCRIPTS::"/Volumes/HestAI-Projects/eav-ops/eav-apps/scripts-web/scripts/" FILES::[ create-test-users-via-api.mjs::"Test user creation via Auth Admin API (used by CI)" ]

§4::CRITICAL_PATTERNS_POC_PROVEN

PATTERN_1::MIGRATION_TESTING::[ USE::supabase_db_reset_local[NOT_db_push], BECAUSE::"EMERGENCY FIX 2025-10-26 — db push fails with complex trigger functions", EVIDENCE::POC_ci.yml:105 ]

PATTERN_2::TEST_USER_CREATION::[ METHOD::auth_admin_api_via_scripts/create-test-users-via-api.mjs[NOT_SQL], BECAUSE::"Ensures proper GoTrue internal state (auth.users + auth.identities)", EVIDENCE::[POC_ci.yml:144-161, POC_scripts/create-test-users-via-api.mjs] ]

PATTERN_3::RATE_LIMITING::[ DELAY::750ms_between_auth_operations, IMPLEMENTATION::auth_delay_helper, BECAUSE::"Prevents Supabase rate limit failures", EVIDENCE::POC_src/test/supabase-test-client.ts:121-131 ]

PATTERN_4::FAIL_FAST_GUARDS::[ DETECTION::CI_misconfiguration[hardcoded_urls_blocking_preview], CODE::"if(SUPABASE_PREVIEW_URL && SUPABASE_URL.includes('127.0.0.1'))→throw('CI_MISCONFIGURATION')", BECAUSE::"Prevents 50+ minute CI hangs", EVIDENCE::POC_src/test/supabase-test-client.ts:75-81 ]

PATTERN_5::ENVIRONMENT_PRIORITY::[ ORDER::"SUPABASE_PREVIEW_URL gt 127.0.0.1:54321 gt VITE_SUPABASE_URL", BECAUSE::"Automatic environment detection (CI preview > local > remote fallback)", EVIDENCE::POC_src/test/supabase-test-client.ts:37-41 ]

PATTERN_6::SEED_SEQUENCE::[ ORDER::migrations→test_users_via_auth_api→seed_data_via_sql, BECAUSE::"Order matters for FK constraints (users must exist before data references them)", EVIDENCE::POC_ci.yml:100-168 ]

§5::TEST_USERS_STANDARDIZED

ADMIN_EMAIL::[e-mail] CLIENT_EMAIL::[e-mail] UNAUTH_EMAIL::[e-mail] PASSWORDS::"see .env — TEST_USER_ADMIN_PASSWORD, TEST_USER_CLIENT_PASSWORD, TEST_USER_UNAUTH_PASSWORD" NOTE::"Emails are stable test fixtures. Passwords come from .env — never hardcode credentials." SOURCE::POC_src/test/supabase-test-client.ts:102-115

§6::ENVIRONMENT_CONFIGURATION

VITE_SUPABASE_URL::"https://project.supabase.co" VITE_SUPABASE_PUBLISHABLE_KEY::"sb_publishable_" SUPABASE_SECRET_KEY::"sb_secret_" SUPABASE_PREVIEW_URL::"https://preview-branch.supabase.co" SUPABASE_PREVIEW_ANON_KEY::"sb_publishable_preview_*" VITEST_INTEGRATION::true

§7::GITGUARDIAN_EXCLUSIONS

PATH_EXCLUSIONS::["packages//src/test/**", "apps//src/test/", "/.test.ts", "**/.test.tsx"] PATTERN_EXCLUSIONS::["test-mock-.*", "test-project\.supabase\.co", "127\.0\.0\.1:54321", "test-password-(admin|client|unauth)-123"] RATIONALE::"Real credentials in .env (gitignored), test fixtures non-functional"

§8::AGENT_CONSULTATION

CONSULT::[ security-specialist::"Credential management, GitGuardian patterns, test data isolation", critical-engineer::"Production risk from test infrastructure failures", universal-test-engineer::"Actual test writing (delegate, don't implement)" ]

§9::KNOWLEDGE_BASE_REFERENCES

PRIMARY::.hestai/state/context/test-context/RULES.md[POC_proven_patterns]→CONSULT_FIRST

DOCUMENTATION::[ .hestai/state/context/test-context/SUPABASE-TEST-HARNESS.md ]

POC_REFERENCE::[ "/Volumes/HestAI-Projects/eav-ops/eav-apps/scripts-web/src/test/", "/Volumes/HestAI-Projects/eav-ops/eav-apps/scripts-web/scripts/create-test-users-via-api.mjs" ]

NORTH_STAR::.hestai/north-star/000-UNIVERSAL-EAV_SYSTEM-D1-NORTH-STAR.md[I7:TDD_RED_discipline, I8:production_grade_quality]

§10::ANCHOR_KERNEL TARGET::"spec-compliant Supabase test harness guidance with POC-proven patterns" NEVER::[ use_db_push_for_migration_testing[use_db_reset_local], create_test_users_via_SQL[use_auth_admin_api], skip_rate_limiting_between_auth_ops, omit_fail_fast_guards_for_preview_detection, seed_data_before_test_users_exist ] MUST::[ consult_RULES_md_before_infrastructure_decisions, use_supabase_db_reset_local_for_migration_testing, create_test_users_via_auth_admin_api, apply_750ms_delay_between_auth_operations, follow_seed_sequence[migrations→test_users→seed_data] ] GATE::"RULES.md consulted first? db reset used (not db push)? Auth Admin API for test users? Rate limiting applied? Seed sequence correct?"

===END===