diff options
| author | regnat <rg@regnat.ovh> | 2020-07-02 15:43:35 +0200 |
|---|---|---|
| committer | regnat <rg@regnat.ovh> | 2020-07-02 16:13:36 +0200 |
| commit | 11ba4ec795cf52769e1c6403437cc51d6408b6e4 (patch) | |
| tree | 6ba079e2c0dae79c0df026ade6de306356477343 | |
| parent | c762385457ce9e34536ba5de0b144d16d25ffbf6 (diff) | |
Make the gc-auto test more reliable
Use a fifo pipe to handle the synchronisation between the different
threads rather than relying on delays
| -rw-r--r-- | tests/gc-auto.sh | 51 |
1 files changed, 30 insertions, 21 deletions
diff --git a/tests/gc-auto.sh b/tests/gc-auto.sh index de1e2cfe4..b282644ca 100644 --- a/tests/gc-auto.sh +++ b/tests/gc-auto.sh @@ -13,24 +13,32 @@ fake_free=$TEST_ROOT/fake-free export _NIX_TEST_FREE_SPACE_FILE=$fake_free echo 1100 > $fake_free +fifoLock=$TEST_ROOT/fifoLock +mkfifo "$fifoLock" + expr=$(cat <<EOF with import ./config.nix; mkDerivation { name = "gc-A"; buildCommand = '' set -x [[ \$(ls \$NIX_STORE/*-garbage? | wc -l) = 3 ]] + mkdir \$out echo foo > \$out/bar - echo 1... - sleep 2 - echo 200 > ${fake_free}.tmp1 + + # Pretend that we run out of space + echo 100 > ${fake_free}.tmp1 mv ${fake_free}.tmp1 $fake_free - echo 2... - sleep 2 - echo 3... - sleep 2 - echo 4... - [[ \$(ls \$NIX_STORE/*-garbage? | wc -l) = 1 ]] + + # Wait for the GC to run + for i in {1..20}; do + echo ''\${i}... + if [[ \$(ls \$NIX_STORE/*-garbage? | wc -l) = 1 ]]; then + exit 0 + fi + sleep 1 + done + exit 1 ''; } EOF @@ -43,15 +51,9 @@ with import ./config.nix; mkDerivation { set -x mkdir \$out echo foo > \$out/bar - echo 1... - sleep 2 - echo 200 > ${fake_free}.tmp2 - mv ${fake_free}.tmp2 $fake_free - echo 2... - sleep 2 - echo 3... - sleep 2 - echo 4... + + # Wait for the first build to finish + cat "$fifoLock" ''; } EOF @@ -59,12 +61,19 @@ EOF nix build -v -o $TEST_ROOT/result-A -L "($expr)" \ --min-free 1000 --max-free 2000 --min-free-check-interval 1 & -pid=$! +pid1=$! nix build -v -o $TEST_ROOT/result-B -L "($expr2)" \ - --min-free 1000 --max-free 2000 --min-free-check-interval 1 + --min-free 1000 --max-free 2000 --min-free-check-interval 1 & +pid2=$! -wait "$pid" +# Once the first build is done, unblock the second one. +# If the first build fails, we need to postpone the failure to still allow +# the second one to finish +wait "$pid1" || FIRSTBUILDSTATUS=$? +echo "unlock" > $fifoLock +( exit ${FIRSTBUILDSTATUS:-0} ) +wait "$pid2" [[ foo = $(cat $TEST_ROOT/result-A/bar) ]] [[ foo = $(cat $TEST_ROOT/result-B/bar) ]] |