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test: test undefined in util

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PR-URL: https://github.com/nodejs/node/pull/22741
Reviewed-By: Gus Caplan <me@gus.host>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com>
This commit is contained in:
ZYSzys 2018-09-07 10:47:15 +08:00 committed by Michael Dawson
parent 709b3b1e1c
commit a00eee37b4
1 changed files with 3 additions and 0 deletions
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3
test/parallel/test-util.js
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@ -113,14 +113,17 @@ assert.strictEqual(util.isBoolean(false), true);
assert.strictEqual(util.isBoolean('string'), false);
assert.strictEqual(util.isNull(null), true);
assert.strictEqual(util.isNull(undefined), false);
assert.strictEqual(util.isNull(), false);
assert.strictEqual(util.isNull('string'), false);
assert.strictEqual(util.isUndefined(undefined), true);
assert.strictEqual(util.isUndefined(), true);
assert.strictEqual(util.isUndefined(null), false);
assert.strictEqual(util.isUndefined('string'), false);
assert.strictEqual(util.isNullOrUndefined(null), true);
assert.strictEqual(util.isNullOrUndefined(undefined), true);
assert.strictEqual(util.isNullOrUndefined(), true);
assert.strictEqual(util.isNullOrUndefined('string'), false);