Bug 1950141 [wpt PR 50741] - Add WPT for getInterestGroupAdAuctionData with no sellers, a=testonly

Automatic update from web-platform-tests
Add WPT for getInterestGroupAdAuctionData with no sellers

Change-Id: If1522e8c83342709e3b9beec23eb5828389228e8
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6271265
Reviewed-by: Qingxin Wu <qingxinwugoogle.com>
Commit-Queue: Russ Hamilton <behamiltongoogle.com>
Auto-Submit: Russ Hamilton <behamiltongoogle.com>
Cr-Commit-Position: refs/heads/main{#1423904}

--

wpt-commits: f44234f2cb4a12d664c291ce1daca0d984dcb17e
wpt-pr: 50741

UltraBlame original commit: 791508b1336fca821421f3ebb7d605866fbfaad4

Author: marco-c

testing/web-platform/tests/fledge/tentative/get-interest-group-auction-data.https.window.js

@@ -774,7 +774,6 @@ subsetTest(promise_test, async test => {
   await joinInterestGroup(test, uuid, igConfig);
 
   await promise_rejects_js(test, TypeError, navigator.getInterestGroupAdAuctionData({
-    coordinatorOrigin: window.location.origin,
     sellers: [{
       coordinatorOrigin: await BA.configureCoordinator(),
       seller: window.location.origin,
@@ -785,3 +784,15 @@ subsetTest(promise_test, async test => {
   ]
   }));
 }, 'getInterestGroupAdAuctionData() doesn\'t allow duplicate sellers in "sellers" field');
+
+subsetTest(promise_test, async test => {
+  const uuid = generateUuid(test);
+  const igConfig = makeTemplateIgConfig(uuid);
+  await joinInterestGroup(test, uuid, igConfig);
+
+  const result = await navigator.getInterestGroupAdAuctionData({
+    sellers: []
+  });
+  assert_equals(result.requestId, "");
+  assert_array_equals(result.requests, []);
+}, 'getInterestGroupAdAuctionData() with no sellers');