#333 Update line numbers for loclist items when current sign_id values are set

test/sign/test_sign_parsing.vader

@@ -1,14 +1,27 @@
 Execute (Parsing English signs should work):
-  AssertEqual [[9, 1000001]], ale#sign#ParseSigns(['Signs for app.js:', '    line=9  id=1000001  name=ALEWarningSign'])
+  AssertEqual
+  \ [[9, 1000001, 'ALEWarningSign']],
+  \ ale#sign#ParseSigns([
+  \   'Signs for app.js:',
+  \   '    line=9  id=1000001  name=ALEWarningSign',
+  \ ])
 
 Execute (Parsing Russian signs should work):
-  AssertEqual [[1, 1000001]], ale#sign#ParseSigns(['    строка=1  id=1000001  имя=ALEErrorSign'])
+  AssertEqual
+  \ [[1, 1000001, 'ALEErrorSign']],
+  \ ale#sign#ParseSigns(['    строка=1  id=1000001  имя=ALEErrorSign'])
 
 Execute (Parsing Japanese signs should work):
-  AssertEqual [[1, 1000001]], ale#sign#ParseSigns(['    行=1  識別子=1000001  名前=ALEWarningSign'])
+  AssertEqual
+  \ [[1, 1000001, 'ALEWarningSign']],
+  \ ale#sign#ParseSigns(['    行=1  識別子=1000001  名前=ALEWarningSign'])
 
 Execute (Parsing Spanish signs should work):
-  AssertEqual [[12, 1000001]], ale#sign#ParseSigns(['    línea=12 id=1000001 nombre=ALEWarningSign'])
+  AssertEqual
+  \ [[12, 1000001, 'ALEWarningSign']],
+  \ ale#sign#ParseSigns(['    línea=12 id=1000001 nombre=ALEWarningSign'])
 
 Execute (Parsing Italian signs should work):
-  AssertEqual [[1, 1000001]], ale#sign#ParseSigns(['    riga=1 id=1000001, nome=ALEWarningSign'])
+  AssertEqual
+  \ [[1, 1000001, 'ALEWarningSign']],
+  \ ale#sign#ParseSigns(['    riga=1 id=1000001, nome=ALEWarningSign'])

test/sign/test_sign_placement.vader

@@ -46,6 +46,17 @@ Before:
     \]
   endfunction
 
+  function! ParseSigns()
+    redir => l:output
+      silent sign place
+    redir END
+
+    return map(
+    \ split(l:output, '\n')[2:],
+    \ 'matchlist(v:val, ''^.*=\(\d\+\).*=\(\d\+\).*=\(.*\)$'')[1:3]',
+    \)
+  endfunction
+
   call ale#linter#Define('testft', {
   \ 'name': 'x',
   \ 'executable': 'echo',
@@ -54,9 +65,11 @@ Before:
   \})
 
 After:
-  call ale#linter#Reset()
+  unlet! g:loclist
   delfunction GenerateResults
-  unlet! g:output
+  delfunction ParseSigns
+  call ale#linter#Reset()
+  sign unplace *
 
 Given testft(A file with warnings/errors):
   foo
@@ -65,14 +78,10 @@ Given testft(A file with warnings/errors):
   fourth line
   fifth line
 
-Execute:
+Execute(The current signs should be set for running a job):
   call ale#Lint()
   call ale#engine#WaitForJobs(2000)
 
-  redir => g:output
-    silent sign place
-  redir END
-
   AssertEqual
   \ [
   \   ['1', '1000001', 'ALEErrorSign'],
@@ -81,7 +90,45 @@ Execute:
   \   ['4', '1000004', 'ALEErrorSign'],
   \   ['5', '1000005', 'ALEErrorSign'],
   \ ],
-  \ map(
-  \   split(g:output, '\n')[2:],
-  \   'matchlist(v:val, "[^=]*=\\(\\d\\+\\)[^=]*=\\(\\d\\+\\).*\\(ALE.*\\)$")[1:3]'
-  \ )
+  \ ParseSigns()
+
+
+Execute(Loclist items with sign_id values should be kept):
+  exec 'sign place 1000347 line=15 name=ALEErrorSign buffer=' . bufnr('%')
+  exec 'sign place 1000348 line=16 name=ALEWarningSign buffer=' . bufnr('%')
+
+  let g:loclist = [
+  \ {'lnum': 1, 'col': 1, 'type': 'E', 'text': 'a', 'sign_id': 1000347},
+  \ {'lnum': 2, 'col': 1, 'type': 'W', 'text': 'b', 'sign_id': 1000348},
+  \ {'lnum': 3, 'col': 1, 'type': 'E', 'text': 'c'},
+  \ {'lnum': 4, 'col': 1, 'type': 'W', 'text': 'd'},
+  \ {'lnum': 15, 'col': 2, 'type': 'W', 'text': 'e'},
+  \ {'lnum': 16, 'col': 2, 'type': 'E', 'text': 'f'},
+  \]
+
+  call ale#sign#SetSigns(bufnr('%'), g:loclist)
+
+  " Line numbers should be changed, sign_id values should be replaced,
+  " and items should be sorted again.
+  AssertEqual
+  \ [
+  \   {'lnum': 3, 'col': 1, 'type': 'E', 'text': 'c', 'sign_id': 1000001},
+  \   {'lnum': 4, 'col': 1, 'type': 'W', 'text': 'd', 'sign_id': 1000002},
+  \   {'lnum': 15, 'col': 1, 'type': 'E', 'text': 'a', 'sign_id': 1000003},
+  \   {'lnum': 15, 'col': 2, 'type': 'W', 'text': 'e', 'sign_id': 1000003},
+  \   {'lnum': 16, 'col': 1, 'type': 'W', 'text': 'b', 'sign_id': 1000004},
+  \   {'lnum': 16, 'col': 2, 'type': 'E', 'text': 'f', 'sign_id': 1000004},
+  \ ],
+  \ g:loclist
+
+  " Items should be grouped again. We should see error signs, where there
+  " were warnings before, and errors where there were errors and where we
+  " now have new warnings.
+  AssertEqual
+  \ [
+  \   ['3', '1000001', 'ALEErrorSign'],
+  \   ['4', '1000002', 'ALEWarningSign'],
+  \   ['15', '1000003', 'ALEErrorSign'],
+  \   ['16', '1000004', 'ALEErrorSign'],
+  \ ],
+  \ ParseSigns()