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04b4d15b39
Many of the tests use variables to track when callback functions are invoked or events are emitted. These variables are then asserted on process exit. This commit replaces this pattern in straightforward cases with common.mustCall(). This makes the tests easier to reason about, leads to a net reduction in lines of code, and uncovered a few bugs in tests. This commit also replaces some callbacks that should never be called with common.fail(). PR-URL: https://github.com/nodejs/node/pull/7753 Reviewed-By: Wyatt Preul <wpreul@gmail.com> Reviewed-By: Minwoo Jung <jmwsoft@gmail.com> Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
52 lines
1.1 KiB
JavaScript
52 lines
1.1 KiB
JavaScript
'use strict';
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const common = require('../common');
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var assert = require('assert');
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var Readable = require('_stream_readable');
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var len = 0;
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var chunks = new Array(10);
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for (var i = 1; i <= 10; i++) {
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chunks[i - 1] = Buffer.allocUnsafe(i);
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len += i;
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}
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var test = new Readable();
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var n = 0;
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test._read = function(size) {
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var chunk = chunks[n++];
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setTimeout(function() {
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test.push(chunk === undefined ? null : chunk);
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});
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};
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test.on('end', thrower);
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function thrower() {
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throw new Error('this should not happen!');
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}
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var bytesread = 0;
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test.on('readable', function() {
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var b = len - bytesread - 1;
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var res = test.read(b);
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if (res) {
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bytesread += res.length;
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console.error('br=%d len=%d', bytesread, len);
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setTimeout(next);
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}
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test.read(0);
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});
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test.read(0);
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function next() {
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// now let's make 'end' happen
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test.removeListener('end', thrower);
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test.on('end', common.mustCall(function() {}));
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// one to get the last byte
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var r = test.read();
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assert(r);
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assert.equal(r.length, 1);
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r = test.read();
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assert.equal(r, null);
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}
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