Bug 1459572 [wpt PR 10865] - HTML: FormData serialization of <input t…

…ype=file> without selection, a=testonly

Automatic update from web-platform-testsHTML: FormData representation of <input type=file> without selection

For whatwg/html#3658.
--

wpt-commits: 11f912ed1d8c8da3cb23f8e77444c4bc03c18e01
wpt-pr: 10865

testing/web-platform/meta/MANIFEST.json

@@ -338986,6 +338986,12 @@
      {}
     ]
    ],
+   "html/semantics/forms/form-submission-0/form-data-set-empty-file.window.js": [
+    [
+     "/html/semantics/forms/form-submission-0/form-data-set-empty-file.window.html",
+     {}
+    ]
+   ],
    "html/semantics/forms/form-submission-0/form-data-set-usv.html": [
     [
      "/html/semantics/forms/form-submission-0/form-data-set-usv.html",
@@ -576395,6 +576401,10 @@
    "5cb7e225df89561a1137933615b93c9912444006",
    "support"
   ],
+  "html/semantics/forms/form-submission-0/form-data-set-empty-file.window.js": [
+   "727543085a822c9976f443b2e5adbf9708aecec2",
+   "testharness"
+  ],
   "html/semantics/forms/form-submission-0/form-data-set-usv-form.html": [
    "82386590b55a9028e47d16d6a8c67cd0e44e919e",
    "support"

testing/web-platform/tests/html/semantics/forms/form-submission-0/form-data-set-empty-file.window.js

@@ -0,0 +1,14 @@
+promise_test(() => {
+  const form = document.body.appendChild(document.createElement("form")),
+        input = form.appendChild(document.createElement("input"));
+  input.type = "file";
+  input.name = "hi";
+  const fd = new FormData(form),
+        value = fd.get(input.name);
+  assert_true(value instanceof File, "value is a File");
+  assert_equals(value.name, "", "name");
+  assert_equals(value.type, "application/octet-stream", "type");
+  return new Response(value).text().then(body => {
+    assert_equals(body, "", "body");
+  });
+}, "Empty <input type=file> is still serialized");