[Partitioned Popins] The opener cannot open more than one popin

Only one popin can be open at a time for a given tab. Explainer: https://explainers-by-googlers.github.io/partitioned-popins/ I2P: https://groups.google.com/a/chromium.org/g/blink-dev/c/ApU_zUmpQ2g/ Bug: 340606651 Change-Id: I18ad78d6959497a5763c9d51bba17b586aa61479 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5823949 Auto-Submit: Ari Chivukula <arichiv@chromium.org> Reviewed-by: Nasko Oskov <nasko@chromium.org> Commit-Queue: Ari Chivukula <arichiv@chromium.org> Cr-Commit-Position: refs/heads/main@{#1349396}
web-platform-tests · Aug 30, 2024 · 9e39c30 · 9e39c30
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diff --git a/partitioned-popins/partitioned-popins.limit.tentative.https.window.js b/partitioned-popins/partitioned-popins.limit.tentative.https.window.js
@@ -0,0 +1,29 @@
+// META: script=/resources/testdriver.js
+// META: script=/resources/testdriver-vendor.js
+
+'use strict';
+
+// Spec: https://explainers-by-googlers.github.io/partitioned-popins/
+// Step 1 - Open a popin and succeed.
+// Step 2 - Open a second popin and fail.
+// Step 3 - Cleanup.
+
+async_test(t => {
+  let message = "";
+
+  // Step 1
+  try {
+    let popin_1 = window.open("/partitioned-popins/resources/partitioned-popins.wait.html", '_blank', 'popin');
+    message += popin_1 ? "FirstPopinOpened-" : "";
+  } catch (_) {}
+
+  // Step 2
+  try {
+    let popin_2 = window.open("/partitioned-popins/resources/partitioned-popins.wait.html", '_blank', 'popin');
+    message += popin_2 ? "SecondPopinOpened-" : "";
+  } catch (_) {}
+
+  // Step 3
+  assert_equals(message, "FirstPopinOpened-");
+  t.done();
+}, "Verify only one partitioned popin can be open at a time.");
diff --git a/partitioned-popins/resources/partitioned-popins.wait.html b/partitioned-popins/resources/partitioned-popins.wait.html
@@ -0,0 +1,9 @@
+<!doctype html>
+<meta charset="utf-8">
+<script src="/resources/testdriver.js"></script>
+<script src="/resources/testdriver-vendor.js"></script>
+<script>
+(async function() {
+  test_driver.set_test_context(window.opener);
+})();
+</script>