Add IAMAssumeRoleWithWebIdentity_github_oidc_live, the only web-identity test that exercises AssumeRoleWithWebIdentity against a real external OIDC provider end-to-end: GitHub Actions' own issuer, with real discovery-document fetch, JWKS fetch, RS256 signature verification, claims mapping, and session credential issuance. Every other web-identity test in the suite uses a fake token that never reaches real signature verification. The test registers a throwaway OIDC provider and trust role scoped to this repo (via a distinct test audience and repo-scoped sub condition), fetches a real ID token from GitHub's runtime endpoint, assumes the role, and confirms the issued session credentials work with a follow-up GetCallerIdentity call. It cleans up the role and provider unconditionally and skips itself when run outside a GitHub Actions job with id-token: write permission (e.g. local runs or fork PRs, where GitHub downgrades OIDC permissions to read-only).
Add functional-iam-oidc.yml to run this test in CI on push to main and on same-repo pull_request runs, isolated from the full iam suite since it's the only test needing id-token: write.
Add a SKIP counter and skipF() alongside the existing runF/passF/failF, and report it in the final RAN/PASS/FAIL summary, so a test opting out via skipF() (as this one does when OIDC env vars aren't present) is visible instead of silently absent from the count.
niksis02
eeff64c255