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test: stream readableListening internal state
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PR-URL: #9864
Refs: #8683
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
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italoacasas authored and Fishrock123 committed Dec 13, 2016
1 parent a92f2ad commit c792e2a
Showing 1 changed file with 34 additions and 0 deletions.
34 changes: 34 additions & 0 deletions test/parallel/test-stream-readableListening-state.js
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'use strict';

const common = require('../common');
const assert = require('assert');
const stream = require('stream');

const r = new stream.Readable({
read: () => {}
});

// readableListening state should start in `false`.
assert.strictEqual(r._readableState.readableListening, false);

r.on('readable', common.mustCall(() => {
// Inside the readable event this state should be true.
assert.strictEqual(r._readableState.readableListening, true);
}));

r.push(Buffer.from('Testing readableListening state'));

const r2 = new stream.Readable({
read: () => {}
});

// readableListening state should start in `false`.
assert.strictEqual(r2._readableState.readableListening, false);

r2.on('data', common.mustCall((chunk) => {
// readableListening should be false because we don't have
// a `readable` listener
assert.strictEqual(r2._readableState.readableListening, false);
}));

r2.push(Buffer.from('Testing readableListening state'));

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