add test to check that modules are cached correctly

src/tests.rs

@@ -95,6 +95,7 @@ create_tests! {
     require_nested: "require/tests/nested",
     require_parents: "require/tests/parents",
     require_siblings: "require/tests/siblings",
+    require_state: "require/tests/state",
 
     global_g_table: "globals/_G",
     global_version: "globals/_VERSION",

tests/require/tests/state.luau

@@ -0,0 +1,16 @@
+-- the idea of this test is that state_module stores some state in one of its local variable
+-- we also set a global in the module to ensure the change we would have expected happens
+local state_module = require("./state_module")
+
+-- we confirm that without anything happening, the initial value is what we ecpect
+assert(state_module.state == 10)
+assert(_state_test_global == 10)
+
+-- this second file also requires state_module and calls a function that changes both the local state and the global to 11
+require("./state_second")
+
+-- with correct module caching, we should see the change done in state_secone reflected here
+assert(state_module.state == 11)
+-- if this also fails then there is either a problem with globals, or state_second is not doing what we expect it to
+assert(_state_test_global == 11)
+

tests/require/tests/state_module.luau

@@ -0,0 +1,11 @@
+local M = {}
+
+M.state = 10
+_state_test_global = 10
+
+function M.set_state(n: number)
+    M.state = n
+    _state_test_global = n
+end
+
+return M

tests/require/tests/state_second.luau

@@ -0,0 +1,5 @@
+local state_module = require("./state_module")
+
+state_module.set_state(11)
+
+return {}