Address review feedback.

Author: tritao

modules/self-test/test_runner.lua

@@ -89,7 +89,6 @@
 		os.chdir(_MAIN_SCRIPT_DIR)
 
 		local startTime = os.clock()
-		local cwd = os.getcwd()
 		local hooks = _.installTestingHooks()
 
 		_TESTS_DIR = test.suite._TESTS_DIR

tests/project/test_sources.lua

@@ -34,8 +34,9 @@
 		local cfg = test.getconfig(prj, "Debug")
 
 		local files = {}
+		local cwd = os.getcwd()
 		for _, file in ipairs(cfg.files) do
-			table.insert(files, path.getrelative(os.getcwd(), file))
+			table.insert(files, path.getrelative(cwd, file))
 		end
 
 		return files