breakLength inspect option is not respected with four or more levels of deepness when depth option is 3 or more

[DamienGarrido]

Version

v18.12.0

Platform

Linux ubuntu 5.11.0-38-generic #42~20.04.1-Ubuntu SMP Tue Sep 28 20:41:07 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux

Subsystem

util

What steps will reproduce the bug?

const { inspect } = require('util');
const inspectOptions = { depth: 3, breakLength: Infinity };

const obj_1 = { one: { two: { three: 'cool!' } } };
const obj_2 = { one: { two: { three: { four: 'boom!' } } } };

console.log(inspect(obj_1, inspectOptions));
console.log(inspect(obj_2, inspectOptions));

How often does it reproduce? Is there a required condition?

Always

What is the expected behavior?

{ one: { two: { three: 'cool!' } } }
{ one: { two: { three: { four: 'boom!' } } } }

What do you see instead?

{ one: { two: { three: 'cool!' } } }
{
  one: { two: { three: { four: 'boom!' } } }
}

Additional information

No response

[BridgeAR]

The behavior above seems correct to me. Our documentation seems a bit off though. The reason is that compact is set to 3 by default. That means only up to the three most inner elements are combined to a single line, as long as these elements all fit into breakLength. If e.g., the most two inner ones would already exceed breakLength, then the line would already be separated earlier.

If you want to have a single line, please also set compact to Infinity.

[BridgeAR]

Since there was no follow-up, I am going to close this as working as expected.