DEV: Add integration test for the mod.pkg func

integration_tests/pkg_func_module.ucg

@@ -0,0 +1,13 @@
+let t = import "std/testing.ucg";
+
+let test_simple_mod = module {
+    arg = "value",
+} => {
+    let value = mod.arg;
+};
+
+let pkg_func_mod = module {
+    arg = "value",
+} => {
+    let value = mod.pkg().test_simple_mod{arg=mod.arg}.value;
+};

integration_tests/pkg_func_module_test.ucg

@@ -0,0 +1,8 @@
+let t = import "std/testing.ucg";
+
+let mod_under_test = import "./pkg_func_module.ucg";
+
+assert t.equal{
+    left = mod_under_test.pkg_func_mod{arg="foo"}.value,
+    right = "foo",
+};