test/ui: enable strict mode by default (and in existing tests)

test/functional/ui/highlight_spec.lua

@@ -42,6 +42,8 @@ describe('Default highlight groups', function()
     clear()
     screen = Screen.new()
     screen:attach()
+    --ignore highligting of ~-lines
+    screen:set_default_attr_ignore( {{bold=true, foreground=hlgroup_colors.NonText}} )
   end)
 
   after_each(function()
@@ -52,8 +54,6 @@ describe('Default highlight groups', function()
       [1] = {reverse = true, bold = true},  -- StatusLine
       [2] = {reverse = true}                -- StatusLineNC
     })
-    --ignore highligting of ~-lines
-    screen:set_default_attr_ignore( {{}, {bold=true, foreground=hlgroup_colors.NonText}} )
     execute('sp', 'vsp', 'vsp')
     screen:expect([[
       ^                   {2:|}                {2:|}               |

test/functional/ui/mouse_spec.lua

@@ -8,6 +8,7 @@ describe('Mouse input', function()
 
   setup(function()
     hlgroup_colors = {
+      NonText = nvim('name_to_color', 'Blue'),
       Visual = nvim('name_to_color', 'LightGrey'),
     }
   end)
@@ -21,8 +22,10 @@ describe('Mouse input', function()
     screen = Screen.new(25, 5)
     screen:attach()
     screen:set_default_attr_ids({
-      [1] = {background = hlgroup_colors.Visual}
+      [1] = {background = hlgroup_colors.Visual},
+      [2] = {bold = true}
     })
+    screen:set_default_attr_ignore( {{bold=true, foreground=hlgroup_colors.NonText}} )
     feed('itesting<cr>mouse<cr>support and selection<esc>')
     screen:expect([[
       testing                  |
@@ -72,7 +75,7 @@ describe('Mouse input', function()
       mo{1:us}^                    |
       support and selection    |
       ~                        |
-      -- VISUAL --             |
+      {2:-- VISUAL --}             |
     ]])
     feed('<LeftDrag><2,2>')
     screen:expect([[
@@ -80,7 +83,7 @@ describe('Mouse input', function()
       mo{1:use }                   |
       {1:su}^port and selection    |
       ~                        |
-      -- VISUAL --             |
+      {2:-- VISUAL --}             |
     ]])
     feed('<LeftDrag><0,0>')
     screen:expect([[
@@ -88,7 +91,7 @@ describe('Mouse input', function()
       {1:mou}se                    |
       support and selection    |
       ~                        |
-      -- VISUAL --             |
+      {2:-- VISUAL --}             |
     ]])
   end)
 
@@ -99,7 +102,7 @@ describe('Mouse input', function()
       mouse                    |
       {1:suppor}^ and selection    |
       ~                        |
-      -- VISUAL --             |
+      {2:-- VISUAL --}             |
     ]])
   end)
 
@@ -110,7 +113,7 @@ describe('Mouse input', function()
       mouse                    |
       {1:su}^{1:port and selection }   |
       ~                        |
-      -- VISUAL LINE --        |
+      {2:-- VISUAL LINE --}        |
     ]])
   end)
 
@@ -121,7 +124,7 @@ describe('Mouse input', function()
       mouse                    |
       su^port and selection    |
       ~                        |
-      -- VISUAL BLOCK --       |
+      {2:-- VISUAL BLOCK --}       |
     ]])
   end)
 
@@ -140,7 +143,7 @@ describe('Mouse input', function()
       {1:mouse }                   |
       {1:su}^port and selection    |
       ~                        |
-      -- VISUAL --             |
+      {2:-- VISUAL --}             |
     ]])
   end)
 
@@ -153,7 +156,7 @@ describe('Mouse input', function()
       ing                      |
       Press ENTER or type comma|
       nd to continue^          |
-    ]])
+    ]],nil,true)
     feed('<cr>')
   end)
 
@@ -171,6 +174,8 @@ describe('Mouse input', function()
     ]])
     screen:try_resize(53, 14)
     execute('sp', 'vsp')
+    screen:set_default_attr_ignore( {{bold=true, foreground=hlgroup_colors.NonText},
+            {reverse=true}, {bold=true, reverse=true}} )
     screen:expect([[
       lines                     |lines                     |
       to                        |to                        |

test/functional/ui/screen.lua

@@ -158,19 +158,11 @@ function Screen:expect(expected, attr_ids, attr_ignore)
     table.insert(expected_rows, row)
   end
   local ids = attr_ids or self._default_attr_ids
-  if attr_ignore == nil and self._default_attr_ignore ~= nil then
+  local ignore = attr_ignore or self._default_attr_ignore
-    attr_ignore = {}
-    -- don't ignore something we specified in attr_ids
-    for i,a in pairs(self._default_attr_ignore) do
-      if attr_index(ids, a) == nil then
-        table.insert(attr_ignore, a)
-      end
-    end
-  end
   self:wait(function()
     for i = 1, self._height do
       local expected_row = expected_rows[i]
-      local actual_row = self:_row_repr(self._rows[i], ids, attr_ignore)
+      local actual_row = self:_row_repr(self._rows[i], ids, ignore)
       if expected_row ~= actual_row then
         return 'Row '..tostring(i)..' didnt match.\nExpected: "'..
                expected_row..'"\nActual:   "'..actual_row..'"'
@@ -417,12 +409,16 @@ function Screen:snapshot_util(attrs, ignore)
       end
     end
 
-    for i = 1, self._height do
+    if ignore ~= true then
-      local row = self._rows[i]
+      for i = 1, self._height do
-      for j = 1, self._width do
+        local row = self._rows[i]
-        local attr = row[j].attrs
+        for j = 1, self._width do
-        if attr_index(attrs, attr) == nil and attr_index(ignore, attr) == nil then
+          local attr = row[j].attrs
-          table.insert(attrs, attr)
+          if attr_index(attrs, attr) == nil and attr_index(ignore, attr) == nil then
+            if not equal_attrs(attr, {}) then
+              table.insert(attrs, attr)
+            end
+          end
         end
       end
     end
@@ -468,7 +464,7 @@ function backward_find_meaningful(tbl, from)
   return from
 end
 
-function get_attr_id(attr_ids, attr_ignore, attrs)
+function get_attr_id(attr_ids, ignore, attrs)
   if not attr_ids then
     return
   end
@@ -477,7 +473,8 @@ function get_attr_id(attr_ids, attr_ignore, attrs)
        return id
      end
   end
-  if attr_ignore == nil or attr_index(attr_ignore, attrs) ~= nil then
+  if equal_attrs(attrs, {}) or
+      ignore == true or attr_index(ignore, attrs) ~= nil then
     -- ignore this attrs
     return nil
   end