[Minor] Add Lua coverage collection for unit-tests (#2528)

* [Minor] Add Lua coverage collection for unit-tests

* [Minor] add coverage collection to CircleCI

* [Minor] split into two lines

* [Minor] sudo

* [Minor] fixed nonsense

* [Minor] Fix functional test

1 files changed, 14 insertions, 1 deletions

diff --git a/test/lua/tests.lua b/test/lua/tests.lua
index 6c05e02e0..82c546903 100644
--- a/test/lua/tests.lua
+++ b/test/lua/tests.lua
@@ -2,6 +2,15 @@
 
 local telescope = require "telescope"
 require "rspamd_assertions"
+local loaded, luacov = pcall(require, 'luacov.runner')
+if not loaded then
+  luacov = {
+    init = function() end,
+    shutdown = function() end,
+    run_report = function() end
+  }
+end
+luacov.init()
 
 local contexts = {}
 
@@ -14,6 +23,7 @@ end
 if not test_pattern then
   test_filter = function(_) return true end
 end
+
 local buffer = {}
 local results = telescope.run(contexts, callbacks, test_filter)
 local summary, data = telescope.summary_report(contexts, results)
@@ -35,4 +45,7 @@ for _, v in pairs(results) do
     v.status_code == telescope.status_codes.fail then
     os.exit(1)
   end
-end
\ No newline at end of file
+end
+
+luacov:shutdown()
+luacov:run_report()