Lua: refactored and extracted test approach

common/space_lua/stdlib/js_test.lua

@@ -0,0 +1,14 @@
+local function assert_equal(a, b)
+  if a ~= b then
+      error("Assertion failed: " .. a .. " is not equal to " .. b)
+  end
+end
+
+local lodash = js.import("https://esm.sh/lodash@4.17.21")
+
+assert_equal(js.stringify(lodash.chunk({1, 2, 3, 4, 5, 6, 7, 8, 9, 10}, 3)), '[[1,2,3],[4,5,6],[7,8,9],[10]]')
+
+local moment = js.import("https://esm.sh/moment@2.30.1")
+
+local day = moment("1995-12-25");
+assert_equal(day.format("DD-MM-YYYY"), "25-12-1995")