1 files changed, 37 insertions, 0 deletions
diff --git a/testing/web-platform/tests/loading/early-hints/resources/csp-basic.html b/testing/web-platform/tests/loading/early-hints/resources/csp-basic.html
new file mode 100644
index 0000000000..0086711fb7
--- /dev/null
+++ b/testing/web-platform/tests/loading/early-hints/resources/csp-basic.html
@@ -0,0 +1,37 @@
+<!DOCTYPE html>
+<meta charset=utf-8>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="early-hints-helpers.sub.js"></script>
+<body>
+<script>
+const SEARCH_PARAMS = new URLSearchParams(window.location.search);
+const EARLY_HINTS_POLICY = SEARCH_PARAMS.get("early-hints-policy");
+const FINAL_POLICY = SEARCH_PARAMS.get("final-policy");
+
+function isResourceAllowed() {
+    return FINAL_POLICY === "absent" || FINAL_POLICY === "allowed";
+}
+
+function shouldEarlyHintsPreloadResource() {
+    return EARLY_HINTS_POLICY === "absent" || EARLY_HINTS_POLICY == "allowed";
+}
+
+promise_test(async (t) => {
+    const resource_url = SEARCH_PARAMS.get("resource-url");
+    if (isResourceAllowed()) {
+        await fetchScript(resource_url);
+        const early_hints_preloaded = isPreloadedByEarlyHints(resource_url);
+        const should_early_hints_preload = shouldEarlyHintsPreloadResource();
+        const description = "Early Hints " +
+            (early_hints_preloaded ? "preloaded" : "didn't preload") +
+            " the resource, should " +
+            (should_early_hints_preload ? "" : "not ") + "preload.";
+        assert_equals(early_hints_preloaded, should_early_hints_preload,
+            description);
+    } else {
+        await promise_rejects_js(t, Error, fetchScript(resource_url));
+    }
+}, `Early Hints CSP: Early Hints policy = ${EARLY_HINTS_POLICY}, final response policy = ${FINAL_POLICY}.`);
+</script>
+</body>