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The existing mock implementations for the flow control framework policies and accessors were simple stubs that returned fixed values. This style of mocking is too restrictive for testing complex, concurrent components where behavior needs to be dynamically controlled at test time.

This tracks #674

To prepare for testing more advanced orchestration logic (in the subsequent PR), this commit refactors the core mocks to use function fields instead of static return values. This transforms them from simple stubs into flexible, behavioral mocks. Tests can now inject custom logic at runtime to simulate a wide range of policy decisions and interactions.

The following mocks were updated:

  • MockPriorityBandAccessor
  • MockIntraFlowDispatchPolicy
  • MockInterFlowDispatchPolicy

The policy tests that consume these mocks have been updated to use this new, more powerful mocking pattern.

@k8s-ci-robot k8s-ci-robot added the cncf-cla: yes Indicates the PR's author has signed the CNCF CLA. label Jul 22, 2025
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@k8s-ci-robot k8s-ci-robot requested review from danehans and kfswain July 22, 2025 01:49
@k8s-ci-robot k8s-ci-robot added the needs-ok-to-test Indicates a PR that requires an org member to verify it is safe to test. label Jul 22, 2025
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Hi @LukeAVanDrie. Thanks for your PR.

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@k8s-ci-robot k8s-ci-robot added the size/L Denotes a PR that changes 100-499 lines, ignoring generated files. label Jul 22, 2025
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ahg-g commented Jul 22, 2025

/ok-to-test

@k8s-ci-robot k8s-ci-robot added ok-to-test Indicates a non-member PR verified by an org member that is safe to test. and removed needs-ok-to-test Indicates a PR that requires an org member to verify it is safe to test. labels Jul 22, 2025
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ahg-g commented Jul 22, 2025

/lgtm
/approve

Testing infra for flow control

@k8s-ci-robot k8s-ci-robot added the lgtm "Looks good to me", indicates that a PR is ready to be merged. label Jul 22, 2025
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[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: ahg-g, LukeAVanDrie

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@k8s-ci-robot k8s-ci-robot added the approved Indicates a PR has been approved by an approver from all required OWNERS files. label Jul 22, 2025
The existing mock implementations for the flow control framework
policies and accessors were simple stubs that returned fixed values.
This style of mocking is too restrictive for testing complex, concurrent
components where behavior needs to be dynamically controlled at test
time.

To prepare for testing more advanced orchestration logic, this commit
refactors the core mocks to use function fields instead of static return
values. This transforms them from simple stubs into flexible, behavioral
mocks. Tests can now inject custom logic at runtime to simulate a wide
range of policy decisions and interactions.

The following mocks were updated:
- MockPriorityBandAccessor
- MockIntraFlowDispatchPolicy
- MockInterFlowDispatchPolicy

The policy tests that consume these mocks have been updated to use this
new, more powerful mocking pattern.
@LukeAVanDrie LukeAVanDrie force-pushed the refactor/flow-control-mocks branch from a307ff0 to 3356cad Compare July 22, 2025 15:55
@k8s-ci-robot k8s-ci-robot added size/XL Denotes a PR that changes 500-999 lines, ignoring generated files. and removed lgtm "Looks good to me", indicates that a PR is ready to be merged. size/L Denotes a PR that changes 100-499 lines, ignoring generated files. labels Jul 22, 2025
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ahg-g commented Jul 22, 2025

/lgtm

@k8s-ci-robot k8s-ci-robot added the lgtm "Looks good to me", indicates that a PR is ready to be merged. label Jul 22, 2025
@k8s-ci-robot k8s-ci-robot merged commit 976f385 into kubernetes-sigs:main Jul 22, 2025
8 of 9 checks passed
kfswain pushed a commit to kfswain/llm-instance-gateway that referenced this pull request Jul 31, 2025
The existing mock implementations for the flow control framework
policies and accessors were simple stubs that returned fixed values.
This style of mocking is too restrictive for testing complex, concurrent
components where behavior needs to be dynamically controlled at test
time.

To prepare for testing more advanced orchestration logic, this commit
refactors the core mocks to use function fields instead of static return
values. This transforms them from simple stubs into flexible, behavioral
mocks. Tests can now inject custom logic at runtime to simulate a wide
range of policy decisions and interactions.

The following mocks were updated:
- MockPriorityBandAccessor
- MockIntraFlowDispatchPolicy
- MockInterFlowDispatchPolicy

The policy tests that consume these mocks have been updated to use this
new, more powerful mocking pattern.
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3 participants