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7893f2cd73
We added this facility so that we could get deterministic PRNG behavior for coverage testing on tests that use a replaced PRNG. We need to have our coverage determinism tool test for this as well.
52 lines
1.2 KiB
Bash
Executable File
52 lines
1.2 KiB
Bash
Executable File
#!/bin/sh
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# To use this script, build Tor with coverage enabled, and then say:
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# ./scripts/test/cov-test-determinism.sh run
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#
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# Let it run for a long time so it can run the tests over and over. It
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# will put their coverage outputs in coverage-raw/coverage-*/.
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#
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# Then say:
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# ./scripts/test/cov-test-determinism.sh check
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#
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# It will diff the other coverage outputs to the first one, and put their
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# diffs in coverage-raw/diff-coverage-*.
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run=0
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check=0
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if test "$1" = run; then
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run=1
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elif test "$1" = check; then
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check=1
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else
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echo "First use 'run' with this script, then use 'check'."
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exit 1
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fi
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if test "$run" = 1; then
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# same seed as in travis.yml
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TOR_TEST_RNG_SEED="636f766572616765"
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export TOR_TEST_RNG_SEED
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while true; do
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make reset-gcov
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CD=coverage-raw/coverage-$(date +%s)
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make -j5 check
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mkdir -p "$CD"
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./scripts/test/coverage "$CD"
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done
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fi
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if test "$check" = 1; then
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cd coverage-raw || exit 1
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FIRST="$(find . -name "coverage-*" -type d | head -1)"
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rm -f A
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ln -sf "$FIRST" A
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for dir in coverage-*; do
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rm -f B
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ln -sf "$dir" B
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../scripts/test/cov-diff A B > "diff-$dir"
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done
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fi
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