fix importing luacov for tests running

.gitignore

@@ -19,5 +19,6 @@ tmpdir/*
 
 luacov-html
 luacov.*
+!luacov.lua
 coverage-report
-junit.xml
+junit.xml

tests_framework/lua/busted/modules/luacov.lua

@@ -0,0 +1,23 @@
+return function()
+  -- Function to initialize luacov if available
+  local loadLuaCov = function(config)
+    local result, luacov = pcall(require, 'luacov.runner')
+
+    if not result then
+      return nil, 'LuaCov not found on the system, try running without --coverage option, or install LuaCov first'
+    end
+
+    -- call it to start
+    luacov(config)
+
+    -- exclude busted files
+    table.insert(luacov.configuration.exclude, 'busted_bootstrap$')
+    table.insert(luacov.configuration.exclude, 'busted%.')
+    table.insert(luacov.configuration.exclude, 'luassert%.')
+    table.insert(luacov.configuration.exclude, 'say%.')
+    table.insert(luacov.configuration.exclude, 'pl%.')
+    return true
+  end
+
+  return loadLuaCov
+end

tests_framework/lua/luacov.lua

@@ -0,0 +1,8 @@
+--- Loads `luacov.runner` and immediately starts it.
+-- Useful for launching scripts from the command-line. Returns the `luacov.runner` module.
+-- @class module
+-- @name luacov
+-- @usage lua -lluacov sometest.lua
+local runner = require("luacov.runner")
+runner.init()
+return runner