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t0213: skip ancestry tests under user-mode emulation #2168

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t0213: skip ancestry tests under user-mode emulation #2168

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9 changes: 6 additions & 3 deletions t/t0213-trace2-ancestry.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -31,12 +31,15 @@ PATH="$TTDIR:$PATH" && export PATH
# no cmd_ancestry event is emitted. We detect this at runtime and
# skip the format-specific tests accordingly.

# Determine if cmd_ancestry is supported on this platform.
# Enable these tests only when cmd_ancestry reports real process names.
# The procinfo stub emits no event; under user-mode emulation (e.g.
# qemu-user) /proc reports the emulator, not the guest. Spawn test-tool
# from test-tool and require "test-tool" in the child's ancestry.
test_expect_success 'detect cmd_ancestry support' '
test_when_finished "rm -f trace.detect" &&
GIT_TRACE2_BRIEF=1 GIT_TRACE2="$(pwd)/trace.detect" \
test-tool trace2 001return 0 &&
if grep -q "^cmd_ancestry" trace.detect
test-tool trace2 004child test-tool trace2 001return 0 &&
if grep -q "^cmd_ancestry.*test-tool" trace.detect
then
test_set_prereq TRACE2_ANCESTRY
fi
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