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3d2aef3979
Use assert.strictEqual instead of assert.equal in tests, manually convert types where necessary. PR-URL: https://github.com/nodejs/node/pull/10698 Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com> Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com> Reviewed-By: Michaël Zasso <targos@protonmail.com> Reviewed-By: Teddy Katz <teddy.katz@gmail.com>
57 lines
1.4 KiB
JavaScript
57 lines
1.4 KiB
JavaScript
'use strict';
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require('../common');
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const assert = require('assert');
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// this test verifies that passing a huge number to read(size)
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// will push up the highWaterMark, and cause the stream to read
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// more data continuously, but without triggering a nextTick
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// warning or RangeError.
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const Readable = require('stream').Readable;
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// throw an error if we trigger a nextTick warning.
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process.throwDeprecation = true;
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const stream = new Readable({ highWaterMark: 2 });
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let reads = 0;
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let total = 5000;
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stream._read = function(size) {
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reads++;
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size = Math.min(size, total);
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total -= size;
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if (size === 0)
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stream.push(null);
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else
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stream.push(Buffer.allocUnsafe(size));
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};
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let depth = 0;
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function flow(stream, size, callback) {
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depth += 1;
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const chunk = stream.read(size);
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if (!chunk)
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stream.once('readable', flow.bind(null, stream, size, callback));
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else
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callback(chunk);
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depth -= 1;
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console.log('flow(' + depth + '): exit');
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}
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flow(stream, 5000, function() {
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console.log('complete (' + depth + ')');
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});
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process.on('exit', function(code) {
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assert.strictEqual(reads, 2);
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// we pushed up the high water mark
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assert.strictEqual(stream._readableState.highWaterMark, 8192);
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// length is 0 right now, because we pulled it all out.
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assert.strictEqual(stream._readableState.length, 0);
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assert(!code);
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assert.strictEqual(depth, 0);
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console.log('ok');
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});
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