chore(tests):fix test for icons

lua/vgit/core/icons.lua

@@ -1,10 +1,8 @@
-local has_web_devicons, web_devicons = pcall(require, 'nvim-web-devicons')
-
 local icons = {}
 
 function icons.get(fname, extension)
+  local has_web_devicons, web_devicons = pcall(require, 'nvim-web-devicons')
   if not has_web_devicons or not web_devicons.has_loaded() then return nil, '' end
-
   return web_devicons.get_icon(fname, extension)
 end
 

lua/vgit/core/utils/list.lua

@@ -1,6 +1,6 @@
 local list = {}
 
-list.is_list = vim.is_list
+list.is_list = vim.islist
 
 list.is_empty = vim.tbl_isempty
 

tests/unit/core/icons_spec.lua

@@ -0,0 +1,29 @@
+describe('icons', function()
+  local icons
+
+  before_each(function()
+    icons = require('vgit.core.icons')
+  end)
+
+  describe('get', function()
+    it('should return icon and color when nvim-web-devicons is loaded', function()
+      package.loaded['nvim-web-devicons'] = {
+        has_loaded = function() return true end,
+        get_icon = function(fname, ext) return '', 'blue' end,
+      }
+      local icon, color = icons.get('icons_spec.lua', 'lua')
+      assert.equals('', icon)
+      assert.equals('blue', color)
+    end)
+
+    it('should return nil and empty string when nvim-web-devicons is not loaded', function()
+      package.loaded['nvim-web-devicons'] = {
+        has_loaded = function() return false end,
+      }
+
+      local icon, color = icons.get('test.txt', 'txt')
+      assert.is_nil(icon)
+      assert.equals('', color)
+    end)
+  end)
+end)