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42 lines
1.2 KiB
42 lines
1.2 KiB
7 years ago
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'use strict';
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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 {
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Z_PARTIAL_FLUSH, Z_SYNC_FLUSH, Z_FULL_FLUSH, Z_FINISH
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} = zlib.constants;
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common.crashOnUnhandledRejection();
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async function getOutput(...sequenceOfFlushes) {
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const zipper = zlib.createGzip({ highWaterMark: 16384 });
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zipper.write('A'.repeat(17000));
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for (const flush of sequenceOfFlushes) {
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zipper.flush(flush);
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}
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const data = [];
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return new Promise((resolve) => {
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zipper.on('data', common.mustCall((d) => {
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data.push(d);
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if (data.length === 2) resolve(Buffer.concat(data));
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}, 2));
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});
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}
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(async function() {
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assert.deepStrictEqual(await getOutput(Z_SYNC_FLUSH),
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await getOutput(Z_SYNC_FLUSH, Z_PARTIAL_FLUSH));
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assert.deepStrictEqual(await getOutput(Z_SYNC_FLUSH),
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await getOutput(Z_PARTIAL_FLUSH, Z_SYNC_FLUSH));
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assert.deepStrictEqual(await getOutput(Z_FINISH),
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await getOutput(Z_FULL_FLUSH, Z_FINISH));
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assert.deepStrictEqual(await getOutput(Z_FINISH),
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await getOutput(Z_SYNC_FLUSH, Z_FINISH));
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})();
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