1 files changed, 18 insertions, 0 deletions
diff --git a/tests/unit/progressevent_test.ts b/tests/unit/progressevent_test.ts
new file mode 100644
index 000000000..809c2ad39
--- /dev/null
+++ b/tests/unit/progressevent_test.ts
@@ -0,0 +1,18 @@
+// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
+import { assertEquals } from "./test_util.ts";
+
+Deno.test(function progressEventConstruct() {
+  const progressEventDefs = new ProgressEvent("progressEventType", {});
+  assertEquals(progressEventDefs.lengthComputable, false);
+  assertEquals(progressEventDefs.loaded, 0);
+  assertEquals(progressEventDefs.total, 0);
+
+  const progressEvent = new ProgressEvent("progressEventType", {
+    lengthComputable: true,
+    loaded: 123,
+    total: 456,
+  });
+  assertEquals(progressEvent.lengthComputable, true);
+  assertEquals(progressEvent.loaded, 123);
+  assertEquals(progressEvent.total, 456);
+});