nodejs-mozilla/test/parallel/test-stream-readable-ended.js

47 lines
1.1 KiB
JavaScript

'use strict';
const common = require('../common');
const { Readable } = require('stream');
const assert = require('assert');
// basic
{
// Find it on Readable.prototype
assert(Readable.prototype.hasOwnProperty('readableEnded'));
}
// event
{
const readable = new Readable();
readable._read = () => {
// The state ended should start in false.
assert.strictEqual(readable.readableEnded, false);
readable.push('asd');
assert.strictEqual(readable.readableEnded, false);
readable.push(null);
assert.strictEqual(readable.readableEnded, false);
};
readable.on('end', common.mustCall(() => {
assert.strictEqual(readable.readableEnded, true);
}));
readable.on('data', common.mustCall(() => {
assert.strictEqual(readable.readableEnded, false);
}));
}
// Verifies no `error` triggered on multiple .push(null) invocations
{
const readable = new Readable();
readable.on('readable', () => { readable.read(); });
readable.on('error', common.mustNotCall());
readable.on('end', common.mustCall());
readable.push('a');
readable.push(null);
readable.push(null);
}