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test: add cb error test for fs.close method #29970

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13 changes: 13 additions & 0 deletions test/parallel/test-fs-close-errors.js
Original file line number Diff line number Diff line change
Expand Up @@ -17,3 +17,16 @@ const fs = require('fs');
assert.throws(() => fs.close(input), errObj);
assert.throws(() => fs.closeSync(input), errObj);
});

{
// Test error when cb is not a function
const fd = fs.openSync(__filename, 'r');

['', false, null, {}, []].forEach((input) => {
const errObj = {
code: 'ERR_INVALID_CALLBACK',
name: 'TypeError'
};
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Minor nit-pick: You can move the errObj definition outside of the forEach() to below the fd definition. This way, it's only being defined once.

assert.throws(() => fs.close(fd, input), errObj);
});
}