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Modern s390x x15 has accelerated zlib operations on the CPU. Many distros currently have patches to take advantage of this feature. One side-effect of these patches is that compression routine is no longer deterministic as with software. Interruption to input produces different compressed results. Invalid input can result in processor fault. PR-URL: https://github.com/nodejs/node/pull/44117 Reviewed-By: Luigi Pinca <luigipinca@gmail.com> Reviewed-By: Michael Dawson <midawson@redhat.com> Reviewed-By: Richard Lau <rlau@redhat.com>
28 lines
733 B
JavaScript
28 lines
733 B
JavaScript
'use strict';
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// Regression test for https://github.com/nodejs/node/issues/14523.
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// Checks that flushes interact properly with writableState.needDrain,
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// even if no flush callback was passed.
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const common = require('../common');
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const assert = require('assert');
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const zlib = require('zlib');
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const zipper = zlib.createGzip({ highWaterMark: 16384 });
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const unzipper = zlib.createGunzip();
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zipper.pipe(unzipper);
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zipper.write('A'.repeat(17000));
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zipper.flush();
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let received = 0;
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unzipper.on('data', common.mustCallAtLeast((d) => {
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received += d.length;
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}, 2));
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// Properly `.end()`ing the streams would interfere with checking that
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// `.flush()` works.
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process.on('exit', () => {
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assert.strictEqual(received, 17000);
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});
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