Refactor: Section I7 – Simulated refresh failure coverage for identity pool credentials #1728
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This PR adds complete Section I7 coverage to
test_identity_pool.py:✅ Simulated refresh failure test cases:
subject_token_field_name✅ Updates:
DummyCredentialsupdated to raise errors based on simulated config edge casesTest suite now covers I1–I7 with full 18/18 passing.