1 files changed, 40 insertions, 0 deletions
diff --git a/testing/web-platform/tests/user-timing/mark-entry-constructor.any.js b/testing/web-platform/tests/user-timing/mark-entry-constructor.any.js
new file mode 100644
index 0000000000..ef9c403dda
--- /dev/null
+++ b/testing/web-platform/tests/user-timing/mark-entry-constructor.any.js
@@ -0,0 +1,40 @@
+// META: script=resources/user-timing-helper.js
+
+test(()=>{
+  const entry = new PerformanceMark("name");
+  assert_true(entry instanceof PerformanceMark);
+  checkEntry(entry, {name: "name", entryType: "mark"});
+}, "Mark entry can be created by 'new PerformanceMark(string)'.");
+
+test(()=>{
+  const entry = new PerformanceMark("name", {});
+  assert_true(entry instanceof PerformanceMark);
+  checkEntry(entry, {name: "name", entryType: "mark"});
+}, "Mark entry can be created by 'new PerformanceMark(string, {})'.");
+
+test(()=>{
+  const entry = new PerformanceMark("name", {startTime: 1});
+  assert_true(entry instanceof PerformanceMark);
+  checkEntry(entry, {name: "name", entryType: "mark", startTime: 1});
+}, "Mark entry can be created by 'new PerformanceMark(string, {startTime})'.");
+
+test(()=>{
+  const entry = new PerformanceMark("name", {detail: {info: "abc"}});
+  assert_true(entry instanceof PerformanceMark);
+  checkEntry(entry, {name: "name", entryType: "mark", detail: {info: "abc"}});
+}, "Mark entry can be created by 'new PerformanceMark(string, {detail})'.");
+
+test(()=>{
+  const entry =
+      new PerformanceMark("name", {startTime: 1, detail: {info: "abc"}});
+  assert_true(entry instanceof PerformanceMark);
+  checkEntry(entry, {name: "name", entryType: "mark", startTime: 1, detail: {info: "abc"}});
+}, "Mark entry can be created by " +
+   "'new PerformanceMark(string, {startTime, detail})'.");
+
+test(()=>{
+  const entry = new PerformanceMark("name");
+  assert_true(entry instanceof PerformanceMark);
+  checkEntry(entry, {name: "name", entryType: "mark"});
+  assert_equals(performance.getEntriesByName("name").length, 0);
+}, "Using new PerformanceMark() shouldn't add the entry to performance timeline.");