Len?

[earthboundkid]

Length comes up a fair amount, but it's tricky since you might want greater than or less than or GTE or LTE. You could have be.Len(t, items, "gt", 7) or something, but that's sort of inscrutable.

[earthboundkid]

Maybe be.InRange(t, items, -1, 10) means < 10? Again, it's sort of inscrutable.

[earthboundkid]

be.Compare using cmp.Compare somehow?

be.CompareLen(t, items, 1, 1) // be.True(t, 1, cmp.Compare(len(items), 1))

[oliverpool]

From my personal experience the length is usually fixed (and I find very valuable to have the actual content of the slice on failure).

If I need to compare, I can just use be.True(t, len(b) > 5) (this allows all subtle variations like >, <, >=, <=).

[oliverpool]

(feels a bit like necro-posting because there wasn't much activity recently)

[earthboundkid]

I still use be (as recently as today in fact), but there isn’t much activity because it’s fairly complete. Do you find you need a specific length but not the exact contents? Maybe be.AllEqualFunc that takes a slice and a function that returns a bool for each element.

[oliverpool]

I usually do something like:

be.Len(t, 5, buf) // check the length
be.Equal(t, buf[0], struct{...}) // check the individual elements
be.Equal(t, buf[1], struct{...}) // check the individual elements

Having the Len check beforehand prevents a panic and gives a nicer hint about what is wrong (when it prints the content of buf).

[earthboundkid]

Go 1.23 is going to add iteration, so I should probably have something that can consume those.