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b08a867d60
PR-URL: https://github.com/nodejs/node/pull/26849 Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: Vse Mozhet Byt <vsemozhetbyt@gmail.com>
58 lines
1.6 KiB
JavaScript
58 lines
1.6 KiB
JavaScript
'use strict';
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const common = require('../common');
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const assert = require('assert');
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const stream = require('stream');
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const writable = new stream.Writable();
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writable._writev = common.mustCall((chunks, cb) => {
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assert.strictEqual(chunks.length, 2);
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cb();
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}, 1);
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writable._write = common.mustCall((chunk, encoding, cb) => {
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cb();
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}, 1);
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// first cork
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writable.cork();
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assert.strictEqual(writable._writableState.corked, 1);
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assert.strictEqual(writable._writableState.bufferedRequestCount, 0);
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// cork again
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writable.cork();
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assert.strictEqual(writable._writableState.corked, 2);
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// The first chunk is buffered
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writable.write('first chunk');
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assert.strictEqual(writable._writableState.bufferedRequestCount, 1);
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// First uncork does nothing
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writable.uncork();
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assert.strictEqual(writable._writableState.corked, 1);
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assert.strictEqual(writable._writableState.bufferedRequestCount, 1);
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process.nextTick(uncork);
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// The second chunk is buffered, because we uncork at the end of tick
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writable.write('second chunk');
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assert.strictEqual(writable._writableState.corked, 1);
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assert.strictEqual(writable._writableState.bufferedRequestCount, 2);
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function uncork() {
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// Second uncork flushes the buffer
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writable.uncork();
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assert.strictEqual(writable._writableState.corked, 0);
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assert.strictEqual(writable._writableState.bufferedRequestCount, 0);
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// Verify that end() uncorks correctly
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writable.cork();
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writable.write('third chunk');
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writable.end();
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// End causes an uncork() as well
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assert.strictEqual(writable._writableState.corked, 0);
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assert.strictEqual(writable._writableState.bufferedRequestCount, 0);
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}
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