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test: increase util.callbackify() coverage #13705
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@@ -225,3 +225,37 @@ const values = [ | |
}) | ||
); | ||
} | ||
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{ | ||
// Verify that non-function inputs throw. | ||
['foo', null, undefined, false, 0, {}, Symbol(), []].forEach((value) => { | ||
assert.throws(() => { | ||
callbackify(value); | ||
}, common.expectsError({ | ||
code: 'ERR_INVALID_ARG_TYPE', | ||
type: TypeError, | ||
message: 'The "original" argument must be of type function' | ||
})); | ||
}); | ||
} | ||
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{ | ||
async function asyncFn() { | ||
return await Promise.resolve(42); | ||
There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. Nit: the return itself is already sufficient as the return value is implicitly wrapped in a promise. Therefore the There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. Indeed, but that's the way to other tests are written (e.g. https://github.com/nodejs/node/blob/master/test/parallel/test-util-callbackify.js#L31) |
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} | ||
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const cb = callbackify(asyncFn); | ||
const args = []; | ||
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// Verify that the last argument to the callbackified function is a function. | ||
['foo', null, undefined, false, 0, {}, Symbol(), []].forEach((value) => { | ||
args.push(value); | ||
assert.throws(() => { | ||
cb(...args); | ||
}, common.expectsError({ | ||
code: 'ERR_INVALID_ARG_TYPE', | ||
type: TypeError, | ||
message: 'The "last argument" argument must be of type function' | ||
There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. this output is a tiny bit unfortunate 🤷♂️ I should have covered this |
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})); | ||
}); | ||
} |
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Tiny nit: could use
values.filter(v => typeof v !== 'function')