Add emulator handler for RateLimitByKey#221
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- Implement RateLimitByKeyHandler with counter-based emulation using CounterKey - Supports IncrementCount (custom increment) and IncrementCondition (skip increment) - Check-then-increment pattern matching gateway behavior - Returns 429 when counter at/over limit, with Retry-After headers - Reuses RateLimitStore infrastructure from RateLimit handler - Add RateLimitByKeyTests with 11 test cases - Sections: Inbound Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
maciejtreder
approved these changes
Feb 27, 2026
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Summary
Implement RateLimitByKeyHandler with counter-based emulation using CounterKey.
Changes
src/Testing/Emulator/Policies/RateLimitByKeyHandler.cs- counter-based implementationtest/Test.Testing/Emulator/Policies/RateLimitByKeyTests.cs- 11 test casesFeatures
config.CounterKey(user-defined expression)IncrementCountsupport (custom increment, default 1)IncrementConditionsupport (skip increment when false)174 tests pass, 0 regressions.