tla-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/tla-deferred-evaluation.tentative.html - WPT Dashboard Interop Dashboard

<!doctype html>

<title>import.defer with TLA dependency</title>

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

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

<script>

promise_test(async t => {

  delete window.__tlaModuleEvaluated;

  delete window.__moduleWithTlaDepEvaluated;

  const ns = await import.defer("./resources/module-with-tla-dep.js");

  assert_true(window.__tlaModuleEvaluated,

      "TLA dependency should be eagerly evaluated");

  assert_equals(window.__moduleWithTlaDepEvaluated, undefined,

      "Deferred entrypoint should not be evaluated yet");

  assert_equals(ns.value, "tla-done",

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

  assert_true(window.__moduleWithTlaDepEvaluated,

      "Deferred entrypoint should be evaluated after namespace access");

}, "import.defer() eagerly evaluates TLA dependencies but defers the entrypoint");

</script>