basic-deferred-evaluation.tentative.html

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This WPT test may be referenced by the following Test IDs:
- /html/semantics/scripting-1/the-script-element/module/dynamic-import/basic-deferred-evaluation.tentative.html - WPT Dashboard Interop Dashboard

<!doctype html>

<title>import.defer basic deferred evaluation</title>

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<script>

promise_test(async t => {

  delete window.__moduleEvaluated;

  const ns = await import.defer("./resources/side-effect-module.js");

  assert_equals(window.__moduleEvaluated, undefined,

      "Module should not be evaluated after import.defer resolves");

  assert_equals(ns.value, 42,

      "Accessing namespace property should return the exported value");

  assert_true(window.__moduleEvaluated,

      "Module should be evaluated after accessing namespace property");

}, "import.defer() defers module evaluation until namespace property access");

</script>