---
id: TST-PFM-SEC-204
title: Link cognito identity unit checks
kind: unit
product_area: platform
module: security
revision: 2
status: draft
source_sha:
  services-platform: ad3f6a6582843008ed0f5a17b131878d15829af1
repository: services-platform
files:
  - modules/security/tests/unit/services/identity/link-cognito-identity.spec.js
implements:
  - ATS-PFM-SEC-009-10
environment: mock
implementation_state: implemented
latest_result: not-run
latest_run_at: null
latest_run_ref: null
conformance: not-verified
estimated_minutes: 1
isolation: The suite owns its input fixtures and installed doubles.
assertion_evidence:
  - provenance: test
    source: >-
      services-platform:modules/security/tests/unit/services/identity/link-cognito-identity.spec.js#security
      capability: link-cognito-identity
  - provenance: test
    source: >-
      services-platform:modules/security/tests/unit/services/identity/link-cognito-identity.spec.js#records
      the identity from the pool's record (subject, username) and its federated identities as
      external ones
  - provenance: test
    source: >-
      services-platform:modules/security/tests/unit/services/identity/link-cognito-identity.spec.js#links
      in the pool of the user's own wall, and refuses a user whose wall has no pool registered
  - provenance: test
    source: >-
      services-platform:modules/security/tests/unit/services/identity/link-cognito-identity.spec.js#never
      links on the request's say-so: the pool user must exist, be enabled, and carry the user's
      verified e-mail
  - provenance: test
    source: >-
      services-platform:modules/security/tests/unit/services/identity/link-cognito-identity.spec.js#compares
      e-mails case-insensitively and refuses an unknown application user
dependency_evidence: >-
  The production decision runs in-process. The suite substitutes Cognito where its dependency setup
  supplies them; those boundaries have no live-service proof here.
evidence:
  - 'services-platform:modules/security/tests/unit/services/identity/link-cognito-identity.spec.js'
  - >-
    Static review at the recorded source revision; executable results remain not-run and conformance
    remains not-verified.
binding_note: >-
  Each binding names the scenario to which this file contributes assertions. A binding is not a
  recorded pass and does not extend the file’s dependency boundary.
examiner: codex
examined_at: '2026-10-23'
final_text: OpenAI
dependency_review:
  provenance: test
  source: 'services-platform:modules/security/tests/unit/services/identity/link-cognito-identity.spec.js'
  explicit_no_doubles: false
  identified_double_boundaries:
    - Cognito
---
# Link cognito identity unit checks

## Verification Boundary

The file evaluates production helpers with controlled inputs in-process. The assertion references identify the source checks for link cognito identity.

## What This Suite Proves

The source assertions support the observations named in the bound scenarios. A scenario spanning multiple files must retain the other files’ contributions.

## What It Does Not Prove

This examination does not run the suite. Passing behavior, deployed conformance and the behavior of substituted dependencies require separate execution evidence.

## Real Dependencies and Test Doubles

The production decision runs in-process. The suite substitutes Cognito where its dependency setup supplies them; those boundaries have no live-service proof here.

## Must Not Be Doubled

Keep the production helper, schema, matcher or declaration under examination real. Substituting the decision itself would remove the behavior the assertions exercise.