Generalizes the pty split into an explicit "parallel=false" opt-out: a `serial` tag (declared in dart_test.yaml). The parallel flutter run now excludes `pty || serial`; a separate `flutter test --tags serial --concurrency=1` pass runs the vulnerable ones. For the coverage gate the two passes are real-merged by ci/merge_lcov.py (union DA, max hits, recompute LF/LH) — a plain concat would double-count and corrupt the total. Tag transcript_publisher's bus-republish test serial (it flaked in the parallel pool). Gate verified green end-to-end at 95.08%. T-193. Co-Authored-By: Claude <noreply@anthropic.com>
50 lines
1.7 KiB
Python
50 lines
1.7 KiB
Python
#!/usr/bin/env python3
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"""Merge lcov files into one, on stdout.
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clide runs coverage in two passes — the parallel pool and a serial
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(`--tags serial --concurrency=1`) pass for tests that can't share the
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parallel runner (T-193). Each `flutter test --coverage` pass overwrites
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coverage/lcov.info, and the coverage gate naively sums LF:/LH: across
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records, so a source file appearing in BOTH passes would double-count.
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This unions DA (line→hits) per source file, taking the MAX hit count (a
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line executed in EITHER pass counts as hit), then recomputes LF/LH. Line
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coverage only — which is all flutter emits and all the gate reads. No
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`lcov` dependency.
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Usage: merge_lcov.py a.info b.info [...] > merged.info
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"""
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import sys
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files = {} # source path -> {line: hits}
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order = [] # first-seen order, for stable output
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for path in sys.argv[1:]:
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cur = None
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with open(path) as fh:
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for raw in fh:
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line = raw.rstrip("\n")
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if line.startswith("SF:"):
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cur = line[3:]
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if cur not in files:
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files[cur] = {}
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order.append(cur)
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elif line.startswith("DA:") and cur is not None:
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num, _, hits = line[3:].partition(",")
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num, hits = int(num), int(hits)
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files[cur][num] = max(files[cur].get(num, 0), hits)
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elif line == "end_of_record":
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cur = None
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out = []
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for sf in order:
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da = files[sf]
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out.append("SF:" + sf)
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for num in sorted(da):
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out.append(f"DA:{num},{da[num]}")
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out.append(f"LF:{len(da)}")
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out.append(f"LH:{sum(1 for h in da.values() if h > 0)}")
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out.append("end_of_record")
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sys.stdout.write("\n".join(out) + "\n")
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