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test: improve events coverage to check removeListeners functions #11140

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test: improve events coverage to check removeListeners functions #11140

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test: improve events coverage to check removeListeners functions
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matsuda-koushi committed Feb 3, 2017
commit 545d0f627aece6a6edbac2e608b0f89c5294a218
6 changes: 6 additions & 0 deletions test/parallel/test-event-emitter-remove-all-listeners.js
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Original file line number Diff line number Diff line change
Expand Up @@ -82,3 +82,9 @@ function listener() {}
const ee = new events.EventEmitter();
assert.deepStrictEqual(ee, ee.removeAllListeners());
}

{
const ee = new events.EventEmitter();
ee._events = undefined;
assert.strictEqual(ee, ee.removeAllListeners());
}
8 changes: 8 additions & 0 deletions test/parallel/test-event-emitter-remove-listeners.js
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Expand Up @@ -128,3 +128,11 @@ assert.throws(() => {

ee.removeListener('foo', null);
}, /^TypeError: "listener" argument must be a function$/);

{
const ee = new EventEmitter();
const listener = () => {};
ee._events = undefined;
const e = ee.removeListener('foo', listener);
assert.strictEqual(e, ee);
}