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stream: fix not calling cleanup() when unpiping all streams. #18266

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MoonBall wants to merge 4 commits into from
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stream: fix not calling cleanup() when unpiping all streams. #18266

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3500d5f
stream: fix not calling cleanup() when unpiping all streams.
Jan 20, 2018
020956f
Add more test content
Jan 20, 2018
8da1b72
Fix lint
Jan 20, 2018
eba4582
Fix code style
Jan 22, 2018
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Fix lint
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陈刚 committed Jan 20, 2018
commit 8da1b7288f65384afafd475a5a19e1ca589e4505
12 changes: 7 additions & 5 deletions test/parallel/test-stream-pipe-unpipe-streams.js
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Original file line number Diff line number Diff line change
Expand Up @@ -33,7 +33,7 @@ source.unpipe(dest1);
assert.strictEqual(source._readableState.pipes, null);

{
// test `cleanup()` if we unpipe all streams.
// test `cleanup()` if we unpipe all streams.
const source = Readable({ read: () => {} });
const dest1 = Writable({ write: () => {} });
const dest2 = Writable({ write: () => {} });
Expand All @@ -47,7 +47,7 @@ assert.strictEqual(source._readableState.pipes, null);
assert.strictEqual(source._readableState.pipesCount, 0);
assert.strictEqual(source._readableState.flowing, false);

srcCheckEventNames.forEach(eventName => {
srcCheckEventNames.forEach((eventName) => {
assert.strictEqual(
source.listenerCount(eventName), 0,
`source's '${eventName}' event listeners don't be cleaned up`
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@lpinca lpinca Jan 21, 2018

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Nit: replace "don't be cleaned up" with "not removed", same below.

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@MoonBall MoonBall Jan 22, 2018

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ok~

Expand All @@ -62,13 +62,15 @@ assert.strictEqual(source._readableState.pipes, null);
const unpipeChecker = common.mustCall(() => {
assert.strictEqual(
dest.listenerCount('unpipe'), 1,
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@lpinca lpinca Jan 21, 2018

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Nit: I'd simplify this as

assert.deepStrictEqual(dest.listeners('unpipe'), [unpipeChecker]);

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@MoonBall MoonBall Jan 22, 2018

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ok~

`destination{${currentDestId}} should have a 'unpipe' event listener which is \`unpipeChecker\``
`destination{${currentDestId}} should have a 'unpipe' event ` +
'listener which is `unpipeChecker`'
);
dest.removeListener('unpipe', unpipeChecker);
destCheckEventNames.forEach(eventName => {
destCheckEventNames.forEach((eventName) => {
assert.strictEqual(
dest.listenerCount(eventName), 0,
`destination{${currentDestId}}'s '${eventName}' event listeners don't be cleaned up`
`destination{${currentDestId}}'s '${eventName}' event ` +
"listeners don't be cleaned up"
);
});

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