Hi, I've been looking at: https://github.com/kotest/kotest/issues/826, I've done a basic POC, just wanted to get some opinions. If I include the diff text below the expected/actual bit:

expected:<Foo(a=a, b=a, c=a)> but was:<Foo(a=a, b=b, c=c)>
- diff in field Foo.b: "b" did not equal "a"
- diff in field Foo.c: "c" did not equal "a"

It doesn't hook into the intellij expected pattern to highlight the diff in the comparison window. If we move the diff bit above the expected / actual section, it works, but I think the text looks a little out of context. What do you think?!

Tricky one. I think I'd like to include the intellij diff. So I guess put it first? When you do the diff bit, are you using

Show

to ensure you get a nice presentation (so that a long is 3L for example)

Ok I'll give that a go, we can always tweak it. ah no I hadn't used

Show

, I'll have a go now, it's very much a little hack to see if I could make it work. I'll write it properly, with tests, next.

Ok cool. Basically show is a typeclass that when you do something.show() you'll get back a Printed object that contains a nice representaiton

aaah nice. I've just plugged that in (and played with the format a bit)

Diff in Foo:
 - field a: 321L did not equal 123L
 - field b: "b" did not equal "a"
 - field c: "c" did not equal "a"

yeah looks great

I guess we can only do that when Boo is also a data class?

Yep

re isData and reflection on the properties - yes to both - it's not very pretty. As data classes seem to only care about the properties in the primary constructor, so I have to get the constructors, and then filter the properties based on their name. I was rather hoping to get a list of properties that are in scope of equals in a data class. I suspect there is and I'm not looking hard enough.

I think anything in the constructor is in the equals ?

yeah, that's my understanding, so I'm just filtering the props to those that are in the primary constructor

I did this kind of thing in hoplite

what's hoplite?

oh nice

dunno if you ever used scala

no, I'd very much like to try it. I was a Java dev for a long time, recently discovered things like Kotlin, I like Haskell but there's no jobs, so I might play with Scala sometime soon.

yeah no jobs in haskell, plenty of scala jobs though, more than kotlin (unless you like android)

ah I'm up in Leeds, are you London based?

I used to be, in Chicago atm

ah nice!

other than the weather, the cost of beer and food, and the lack of jobs, yeah it's a real winner

I'm afraid I'm not from Leeds originally

ah ok

You're spot on, my grandad was scottish! There's tons of Pittendreighs in the US

I'm from middlesbrough

ah nice, got a mate from Middlesbrough - taught me the meaning of the word doyle/doylem 🤣