Add OAuth authorization server integration tests#3531
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Add integration test for the full OAuth 2.0 Authorization Code flow with PKCE using mockoidc as the upstream IDP. TestIntegration_FullPKCEFlow validates the complete OAuth flow including authorization through the upstream IDP, client state preservation, token exchange with PKCE verification, and refresh token issuance via the offline_access scope. The test also verifies RFC 8707 resource parameter handling for audience binding and comprehensive JWT claims (iss, sub, aud, iat, exp, scp).
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Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## main #3531 +/- ##
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- Coverage 65.35% 65.31% -0.04%
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Files 403 403
Lines 39210 39210
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- Hits 25625 25610 -15
- Misses 11599 11614 +15
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yrobla
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Jan 30, 2026
yrobla
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Jan 30, 2026
yrobla
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Remove defer resp.Body.Close() from parseTokenResponse since the caller (exchangeCodeForTokens) is responsible for closing the body. Following Go's convention that the caller of the function returning an *http.Response owns the resource and handles cleanup. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Check that each element in the scp claim array is a string, consistent with how the outer array type assertion is validated. Provides a clear test failure message instead of a panic if the token structure is unexpected. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Remove intermediate variable assignment and return the result directly, following idiomatic Go style. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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Add integration test for the full OAuth 2.0 Authorization Code flow with PKCE using mockoidc as the upstream IDP.
TestIntegration_FullPKCEFlow validates the complete OAuth flow including authorization through the upstream IDP, client state preservation, token exchange with PKCE verification, and refresh token issuance via the offline_access scope. The test also verifies RFC 8707 resource parameter handling for audience binding and comprehensive JWT claims (iss, sub, aud, iat, exp, scp).