test(pyamber): add unit tests for Python AsyncRPCServer#6492
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eugenegujing wants to merge 1 commit into
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test(pyamber): add unit tests for Python AsyncRPCServer#6492eugenegujing wants to merge 1 commit into
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Add the first direct unit tests for amber/src/main/python/core/architecture/rpc/async_rpc_server.py, previously only reached indirectly through MainLoop tests. The 26 tests cover: handler-map construction (lowercased method names), the synthetic stream wrapper, success dispatch (command_id round-trip, unwrapped command, case-insensitive lookup), error wrapping into ControlError with ErrorLanguage.PYTHON (raising handler and unknown method), no-reply suppression for negative command ids, and reply routing (context-based with fallback to swapping the incoming channel). Also pins two surprising current behaviors as characterization tests: a handler that returns no result (or a wrong-typed one) silently yields an empty ControlReturn, and unknown-method error messages carry str(KeyError) quotes.
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Automated Reviewer SuggestionsBased on the
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Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## main #6492 +/- ##
============================================
+ Coverage 70.28% 70.31% +0.03%
Complexity 3397 3397
============================================
Files 1142 1142
Lines 44844 44844
Branches 4948 4948
============================================
+ Hits 31517 31533 +16
+ Misses 11682 11666 -16
Partials 1645 1645
*This pull request uses carry forward flags. Click here to find out more. ☔ View full report in Codecov by Harness. 🚀 New features to boost your workflow:
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| config | throughput | MB/s | latency | max Δ latest / 7d | |
|---|---|---|---|---|---|
| 🔴 | bs=10 sw=10 sl=64 | 378 | 0.231 | 25,880/31,565/31,565 us | 🔴 +17.2% / 🔴 +119.8% |
| 🟢 | bs=100 sw=10 sl=64 | 798 | 0.487 | 125,439/137,098/137,098 us | 🟢 -8.5% / 🔴 +38.3% |
| ⚪ | bs=1000 sw=10 sl=64 | 914 | 0.558 | 1,095,829/1,122,216/1,122,216 us | ⚪ within ±5% / 🔴 +20.4% |
Baseline details
Latest main f722c26 from same runner
| config | metric | PR | latest main | 7d avg | Δ latest | Δ 7d |
|---|---|---|---|---|---|---|
| bs=10 sw=10 sl=64 | throughput | 378 tuples/sec | 407 tuples/sec | 831.47 tuples/sec | -7.1% | -54.5% |
| bs=10 sw=10 sl=64 | MB/s | 0.231 MB/s | 0.249 MB/s | 0.507 MB/s | -7.2% | -54.5% |
| bs=10 sw=10 sl=64 | p50 | 25,880 us | 22,075 us | 11,844 us | +17.2% | +118.5% |
| bs=10 sw=10 sl=64 | p95 | 31,565 us | 35,454 us | 14,359 us | -11.0% | +119.8% |
| bs=10 sw=10 sl=64 | p99 | 31,565 us | 35,454 us | 18,888 us | -11.0% | +67.1% |
| bs=100 sw=10 sl=64 | throughput | 798 tuples/sec | 809 tuples/sec | 1,089 tuples/sec | -1.4% | -26.7% |
| bs=100 sw=10 sl=64 | MB/s | 0.487 MB/s | 0.494 MB/s | 0.665 MB/s | -1.4% | -26.7% |
| bs=100 sw=10 sl=64 | p50 | 125,439 us | 121,919 us | 92,503 us | +2.9% | +35.6% |
| bs=100 sw=10 sl=64 | p95 | 137,098 us | 149,831 us | 99,121 us | -8.5% | +38.3% |
| bs=100 sw=10 sl=64 | p99 | 137,098 us | 149,831 us | 112,422 us | -8.5% | +21.9% |
| bs=1000 sw=10 sl=64 | throughput | 914 tuples/sec | 919 tuples/sec | 1,117 tuples/sec | -0.5% | -18.2% |
| bs=1000 sw=10 sl=64 | MB/s | 0.558 MB/s | 0.561 MB/s | 0.682 MB/s | -0.5% | -18.2% |
| bs=1000 sw=10 sl=64 | p50 | 1,095,829 us | 1,091,889 us | 910,046 us | +0.4% | +20.4% |
| bs=1000 sw=10 sl=64 | p95 | 1,122,216 us | 1,114,478 us | 950,716 us | +0.7% | +18.0% |
| bs=1000 sw=10 sl=64 | p99 | 1,122,216 us | 1,114,478 us | 985,832 us | +0.7% | +13.8% |
Raw CSV
config_idx,batch_size,schema_width,string_len,num_batches,total_ms,total_tuples,total_bytes,tuples_per_sec,mb_per_sec,lat_p50_us,lat_p95_us,lat_p99_us
0,10,10,64,20,529.03,200,128000,378,0.231,25879.56,31565.06,31565.06
1,100,10,64,20,2505.23,2000,1280000,798,0.487,125439.12,137097.54,137097.54
2,1000,10,64,20,21884.60,20000,12800000,914,0.558,1095829.23,1122216.08,1122216.08
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Pull request overview
Adds unit-test coverage for the Python worker’s AsyncRPCServer control-message dispatch logic by introducing a focused test suite under amber/src/test/python. This improves confidence in RPC handler dispatch, error wrapping, fire-and-forget semantics, and reply routing without needing to spin up the full worker context.
Changes:
- Added a new
test_async_rpc_server.pysuite exercising handler-map normalization, stream wrapping, success/error paths, no-reply behavior, and reply routing. - Uses a stubbed
AsyncRPCHandlerInitializerfor__init__coverage and a__new__-constructed server forreceive()-path unit tests.
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| def _make_handler(func) -> grpclib.const.Handler: | ||
| """Builds a real grpclib Handler namedtuple around an async callable. | ||
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| AsyncRPCServer only ever touches `.func`, but using the real namedtuple | ||
| keeps the stub shape identical to what AsyncRPCHandlerInitializer yields. | ||
| """ | ||
| return grpclib.const.Handler( | ||
| func, Cardinality.UNARY_UNARY, ControlRequest, ControlReturn | ||
| ) |
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| def _make_invocation( | ||
| method_name: str, command_id: int, context: AsyncRpcContext = None | ||
| ) -> ControlInvocation: |
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What changes were proposed in this PR?
Adds
test_async_rpc_server.py(new, 26 tests) for the Python worker'sAsyncRPCServer(amber/src/main/python/core/architecture/rpc/async_rpc_server.py).What the tests cover:
None.ControlErrormarkedErrorLanguage.PYTHON(including when the error has no message).Any related issues, documentation, discussions?
Closes #6485
How was this PR tested?
Was this PR authored or co-authored using generative AI tooling?
Co-authored by: Claude Code (Fable 5)