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trigger OOM on CI #4883

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trigger OOM on CI #4883

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e93a99d
trigger OOM on CI
tadjik1 Mar 5, 2026
3f2435b
limit old-space-size
tadjik1 Mar 5, 2026
aa19996
build regular object
tadjik1 Mar 5, 2026
fb8b935
check layers
tadjik1 Mar 5, 2026
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1 change: 1 addition & 0 deletions .evergreen/config.in.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -119,6 +119,7 @@ functions:
params:
env:
TEST_CSFLE: "true"
NODE_OPTIONS: "--max-old-space-size=64"
add_expansions_to_env: true
working_dir: "src"
timeout_secs: 300
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1 change: 1 addition & 0 deletions .evergreen/config.yml
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Expand Up @@ -93,6 +93,7 @@ functions:
params:
env:
TEST_CSFLE: 'true'
NODE_OPTIONS: '--max-old-space-size=64'
add_expansions_to_env: true
working_dir: src
timeout_secs: 300
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41 changes: 40 additions & 1 deletion .evergreen/run-tests.sh
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Expand Up @@ -58,4 +58,43 @@ export MONGODB_URI=${MONGODB_URI}
export LOAD_BALANCER=${LOAD_BALANCER}
export TEST_CSFLE=${TEST_CSFLE}
export COMPRESSOR=${COMPRESSOR}
npm run check:integration-coverage

# OOM exit code investigation - run through each layer and log exit codes
set +e

OOM_TEST="test/integration/oom.test.ts"

echo "========================================="
echo "Layer 1: direct mocha"
echo "========================================="
npx mocha --config test/mocha_mongodb.js "$OOM_TEST"
echo "EXIT CODE: $?"

echo "========================================="
echo "Layer 2: npm run check:test (npm -> mocha)"
echo "========================================="
npm run check:test -- "$OOM_TEST"
echo "EXIT CODE: $?"

echo "========================================="
echo "Layer 3: nyc mocha (nyc -> mocha, no npm)"
echo "========================================="
npx nyc mocha --config test/mocha_mongodb.js "$OOM_TEST"
echo "EXIT CODE: $?"

echo "========================================="
echo "Layer 4: nyc npm run check:test (nyc -> npm -> mocha)"
echo "========================================="
npx nyc npm run check:test -- "$OOM_TEST"
echo "EXIT CODE: $?"

echo "========================================="
echo "Layer 5: npm run check:integration-coverage (npm -> nyc -> npm -> mocha)"
echo "========================================="
npm run check:integration-coverage -- "$OOM_TEST"
echo "EXIT CODE: $?"

echo "========================================="
echo "DONE - any EXIT CODE of 0 above means that layer swallows the OOM"
echo "========================================="
exit 1
8 changes: 8 additions & 0 deletions test/integration/oom.test.ts
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@@ -0,0 +1,8 @@
describe.only('OOM exit code detection', function () {
it('allocates until OOM', function () {
const leak: object[] = [];
while (true) {
leak.push({ a: Array.from({ length: 1_000 }, (_, i) => ({ i })) });
}
});
});