What's the best way to assert not null or not undefined in assert in node.js unit test?

Question

i want to assert the return value is valid, not these cases:

null
undefined
NaN
empty string ("")
0
false

in dev code i can just do

if (value)

but in unit test, what's the assert method ? Again i'm using the native assert from node.js

Thanks !

Possible duplicate of [Is there a way to check for both \`null\` and \`undefined\`?](https://stackoverflow.com/questions/28975896/is-there-a-way-to-check-for-both-null-and-undefined) — Jordan Kasper, Sep 20 '19 at 15:10
sigh, it cannot be a dup. If i put that piece of code in our unit test, it will do the job, but won't pass our code review. Almost all companies require mocha/assert/chai etc frameworks, the code needs to be consistent. — user3552178, Sep 20 '19 at 20:27
In that case, you're just asking an opinion-based question? That other question solves the technical problem, if you're just looking for someone to validate what your code reviews demand, then that's just an opinion, and not really a question for StackOverflow. — Jordan Kasper, Sep 21 '19 at 15:33

score 0 · Answer 1 · answered Sep 20 '19 at 15:06

0

assert.ok(val) ?

would this be the simpliest way ?

answered Sep 20 '19 at 15:06

user3552178

1

Nope, `assert.ok(0)` results in an `AssertionError` ([docs](https://nodejs.org/api/assert.html#assert_assert_ok_value_message)) – Jordan Kasper Sep 20 '19 at 15:09
if that case, you can do assert.ok(val === 0); – user3552178 Sep 20 '19 at 15:12
Not quite, that would not catch `false` – Jordan Kasper Sep 20 '19 at 15:40

1 Answers1