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diff --git a/testing/web-platform/tests/performance-timeline/po-getentries.html b/testing/web-platform/tests/performance-timeline/po-getentries.html
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+++ b/testing/web-platform/tests/performance-timeline/po-getentries.html
@@ -0,0 +1,50 @@
+<!DOCTYPE HTML>
+<meta charset=utf-8>
+<title>PerformanceObservers: getEntries*</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="performanceobservers.js"></script>
+<h1>PerformanceObservers: getEntries*</h1>
+<p>
+getEntries, getEntriesByType and getEntriesByName work
+</p>
+<div id="log"></div>
+<script>
+  async_test(function (t) {
+    var observer = new PerformanceObserver(
+        t.step_func(function (entryList, obs) {
+          checkEntries(entryList.getEntries(),
+            [{ entryType: "mark", name: "mark1"}], "getEntries");
+
+          checkEntries(entryList.getEntriesByType("mark"),
+            [{ entryType: "mark", name: "mark1"}], "getEntriesByType");
+          assert_equals(entryList.getEntriesByType("measure").length, 0,
+           "getEntriesByType with no expected entry");
+          assert_equals(entryList.getEntriesByType("234567").length, 0,
+           "getEntriesByType with no expected entry");
+
+          checkEntries(entryList.getEntriesByName("mark1"),
+            [{ entryType: "mark", name: "mark1"}], "getEntriesByName");
+          assert_equals(entryList.getEntriesByName("mark2").length, 0,
+            "getEntriesByName with no expected entry");
+          assert_equals(entryList.getEntriesByName("234567").length, 0,
+            "getEntriesByName with no expected entry");
+
+          checkEntries(entryList.getEntriesByName("mark1", "mark"),
+            [{ entryType: "mark", name: "mark1"}], "getEntriesByName with a type");
+          assert_equals(entryList.getEntriesByName("mark1", "measure").length, 0,
+            "getEntriesByName with a type with no expected entry");
+          assert_equals(entryList.getEntriesByName("mark2", "measure").length, 0,
+            "getEntriesByName with a type with no expected entry");
+          assert_equals(entryList.getEntriesByName("mark1", "234567").length, 0,
+            "getEntriesByName with a type with no expected entry");
+
+          observer.disconnect();
+          t.done();
+        })
+      );
+    observer.observe({entryTypes: ["mark"]});
+    performance.mark("mark1");
+  }, "getEntries, getEntriesByType and getEntriesByName work");
+
+</script>