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Pretest dependencies #1075

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Riolku
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@Riolku Riolku commented Nov 5, 2022

This PR changes the previous "batch dependencies" in a few ways:

  1. Dependencies can now be specified on any top-level unit, case or batch.
  2. Dependencies are specified with YAML alias notation, not numbers.

It also implements pretests, including a PRETEST-END IPC packet.

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@Xyene
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Xyene commented Nov 5, 2022

We'll need an accompanying site-side PR to not crash the bridge when we send it PRETEST-{BEGIN,END} packets.

https://github.com/DMOJ/online-judge/blob/f3cd24e3ecad89c2492917df9229009c2634baed/judge/bridge/judge_handler.py#L40-L54

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Riolku commented Nov 5, 2022

Also have dependencies always be a set instead of a list that gets coerced to a set over and over.

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codecov-commenter commented Nov 13, 2022

Codecov Report

Base: 80.75% // Head: 53.87% // Decreases project coverage by -26.87% ⚠️

Coverage data is based on head (5001269) compared to base (ae6b204).
Patch coverage: 79.01% of modified lines in pull request are covered.

Additional details and impacted files
@@             Coverage Diff             @@
##           master    #1075       +/-   ##
===========================================
- Coverage   80.75%   53.87%   -26.88%     
===========================================
  Files         134      134               
  Lines        4770     4850       +80     
===========================================
- Hits         3852     2613     -1239     
- Misses        918     2237     +1319     
Impacted Files Coverage Δ
dmoj/judge.py 32.56% <72.80%> (-20.77%) ⬇️
dmoj/problem.py 91.72% <92.85%> (+1.10%) ⬆️
dmoj/graders/base.py 89.79% <94.73%> (+11.74%) ⬆️
dmoj/config.py 82.71% <100.00%> (+0.21%) ⬆️
dmoj/executors/C.py 0.00% <0.00%> (-100.00%) ⬇️
dmoj/executors/D.py 0.00% <0.00%> (-100.00%) ⬇️
dmoj/executors/GO.py 0.00% <0.00%> (-100.00%) ⬇️
dmoj/executors/ADA.py 0.00% <0.00%> (-100.00%) ⬇️
dmoj/executors/AWK.py 0.00% <0.00%> (-100.00%) ⬇️
dmoj/executors/C11.py 0.00% <0.00%> (-100.00%) ⬇️
... and 83 more

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@Riolku Riolku force-pushed the pretest-dependencies branch 2 times, most recently from fe77c24 to 1fe64ba Compare November 13, 2022 08:02
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This commit changes the previous "batch dependencies" in a few ways:
1. Dependencies can now be specified on any top-level unit, case or batch.
2. Dependencies are specified with YAML alias notation, not numbers.

It also implements pretests, including a `PRETEST-END` IPC packet.
)
else:
self.main_case += 1
report(ansi_style('%sTest case %2d %-3s %s' % (case_padding, self.main_case, colored_codes[0], case_info)))
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This string is almost identical to the one used for pretests. Can we make "Test case" and "Pretest case" substituted in with another %s?

Same comment below for batches.

@@ -194,11 +196,25 @@ def _ipc_compile_message(self, _report, compile_message: str) -> None:
self.packet_manager.compile_message_packet(compile_message)

def _ipc_grading_begin(self, _report, is_pretested: bool) -> None:
self.in_pretests = False
self.pretest_batch = 0
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Can we use a single set of batch/case variables, and reset them when we end pretests? That way we don't have dangling state after pretests finish.

class GradingAbort(Exception):
pass

def grade(case: AbstractTestCase) -> Result:
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Suggested change
def grade(case: AbstractTestCase) -> Result:
def grade_single(case: AbstractTestCase) -> Result:

To match the naming of the rest of the functions.

# output. So, we trim it here so we don't run out of memory in the controller.
result.proc_output = result.output
yield IPC.RESULT, (batch_number, case_number, result)
failed_pretests: Set[int] = set()
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Rather than have this state here captured by the closure in should_run_main_test, what if we took it as the first parameter to should_run_main_test, and then applied it with partial(...?

failed_pretests, pretest_result = yield from grade_many(pretests, should_run_pretest)
yield IPC.PRETEST_END, ()
if not self.grader.run_pretests_only:
if pretest_result == GradeManyResult.SKIP_ALL:
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Can this ever happen without len(failed_pretests) != 0? Do we need this extra enum, or does nonzero failed_pretests already imply SKIP_ALL here?

failed = True
yield from skip_toplevel(test)
elif isinstance(test, Batch):
yield IPC.BATCH_BEGIN, (test.batch,)
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Can we move these yields into grade_batched_cases? It's a little weird that the case results come from within it, but the batch begin/end markers don't.

result = self.grader.grade(case)
result = grade(test)
failed = result.result_flag & Result.WA
yield IPC.RESULT, (None, test.position, result)
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Can we move this yield into grade?

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3 participants