AssertEqual: better display of unequal dicts/list

[blueyed]

This adds a newline (with indentation) before each value to make it
easier to visually grasp the change.

[junegunn]

Looks useful, thanks!

[adriaanzon]

This renders like this for me:

(12/12) [EXECUTE] (X) Unequal Lists^@      ['bar'] should be equal to ^@      ['foo']

[blueyed]

@adriaanzon
Vim/Neovim?
Windows/MacOS?
interactive or not?

[adriaanzon]

On both vim and neovim, using Arch Linux.

This happens in interactive vim sessions.

I wasn't aware that there's also output in non-interactive vim-sessions, because neovim doesn't output anything when exiting vim immediately using :Vader!. Using /usr/bin/vim -c Vader! ..., the output renders fine.

[junegunn]

Hmm, sorry for not paying close attention. I'd like the output of the interactive session to be fixed. A quick and dirty patch:

diff --git a/autoload/vader.vim b/autoload/vader.vim
index 9036654..8bb5506 100644
--- a/autoload/vader.vim
+++ b/autoload/vader.vim
@@ -25,8 +25,13 @@ let s:register = {}
 let s:register_undefined = []
 let s:indent = 2
 
+function! vader#interactive()
+  return !s:bang
+endfunction
+
 function! vader#run(bang, ...) range
   let s:error_line = 0
+  let s:bang = a:bang
 
   if a:lastline - a:firstline > 0
     if a:0 > 1
diff --git a/autoload/vader/assert.vim b/autoload/vader/assert.vim
index 2e29b86..7c25a69 100644
--- a/autoload/vader/assert.vim
+++ b/autoload/vader/assert.vim
@@ -76,7 +76,7 @@ function! vader#assert#equal(...)
   call s:check_types(Exp, Got)
   if Exp !=# Got
     let type = type(Exp)
-    let msg = (type == type({}) || type == type([]))
+    let msg = ((type == type({}) || type == type([])) && !vader#interactive())
           \ ? printf("Unequal %ss\n      %%s should be equal to \n      %%s", get(s:type_names, type))
           \ : "%s should be equal to %s"
     throw get(a:000, 2, printf(msg, string(Got), string(Exp)))