1 files changed, 59 insertions, 0 deletions
diff --git a/testing/web-platform/tests/FileAPI/fileReader.any.js b/testing/web-platform/tests/FileAPI/fileReader.any.js
new file mode 100644
index 0000000000..2876dcb4ce
--- /dev/null
+++ b/testing/web-platform/tests/FileAPI/fileReader.any.js
@@ -0,0 +1,59 @@
+// META: title=FileReader States
+
+'use strict';
+
+test(function () {
+  assert_true(
+    "FileReader" in globalThis,
+    "globalThis should have a FileReader property.",
+  );
+}, "FileReader interface object");
+
+test(function () {
+  var fileReader = new FileReader();
+  assert_true(fileReader instanceof FileReader);
+}, "no-argument FileReader constructor");
+
+var t_abort = async_test("FileReader States -- abort");
+t_abort.step(function () {
+  var fileReader = new FileReader();
+  assert_equals(fileReader.readyState, 0);
+  assert_equals(fileReader.readyState, FileReader.EMPTY);
+
+  var blob = new Blob();
+  fileReader.readAsArrayBuffer(blob);
+  assert_equals(fileReader.readyState, 1);
+  assert_equals(fileReader.readyState, FileReader.LOADING);
+
+  fileReader.onabort = this.step_func(function (e) {
+    assert_equals(fileReader.readyState, 2);
+    assert_equals(fileReader.readyState, FileReader.DONE);
+    t_abort.done();
+  });
+  fileReader.abort();
+  fileReader.onabort = this.unreached_func("abort event should fire sync");
+});
+
+var t_event = async_test("FileReader States -- events");
+t_event.step(function () {
+  var fileReader = new FileReader();
+
+  var blob = new Blob();
+  fileReader.readAsArrayBuffer(blob);
+
+  fileReader.onloadstart = this.step_func(function (e) {
+    assert_equals(fileReader.readyState, 1);
+    assert_equals(fileReader.readyState, FileReader.LOADING);
+  });
+
+  fileReader.onprogress = this.step_func(function (e) {
+    assert_equals(fileReader.readyState, 1);
+    assert_equals(fileReader.readyState, FileReader.LOADING);
+  });
+
+  fileReader.onloadend = this.step_func(function (e) {
+    assert_equals(fileReader.readyState, 2);
+    assert_equals(fileReader.readyState, FileReader.DONE);
+    t_event.done();
+  });
+});