1 files changed, 59 insertions, 0 deletions
diff --git a/testing/web-platform/tests/XMLHttpRequest/formdata-foreach.html b/testing/web-platform/tests/XMLHttpRequest/formdata-foreach.html
new file mode 100644
index 000000000..9b10367ae
--- /dev/null
+++ b/testing/web-platform/tests/XMLHttpRequest/formdata-foreach.html
@@ -0,0 +1,59 @@
+<!doctype html>
+<html lang=en>
+<meta charset=utf-8>
+<title>FormData: foreach</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+    <link rel="help" href="https://xhr.spec.whatwg.org/#interface-formdata" />
+<script>
+    var fd = new FormData();
+    fd.append('n1', 'v1');
+    fd.append('n2', 'v2');
+    fd.append('n3', 'v3');
+    fd.append('n1', 'v4');
+    fd.append('n2', 'v5');
+    fd.append('n3', 'v6');
+    fd.delete('n2');
+    var expected_keys = ['n1', 'n3', 'n1', 'n3'];
+    var expected_values = ['v1', 'v3', 'v4', 'v6'];
+    test(function() {
+        var mykeys = [], myvalues = [];
+        for(var entry of fd) {
+            assert_equals(entry.length, 2,
+                          'Default iterator should yield key/value pairs');
+            mykeys.push(entry[0]);
+            myvalues.push(entry[1]);
+        }
+        assert_array_equals(mykeys, expected_keys,
+                            'Default iterator should see duplicate keys');
+        assert_array_equals(myvalues, expected_values,
+                            'Default iterator should see non-deleted values');
+    }, 'Iterator should return duplicate keys and non-deleted values');
+    test(function() {
+        var mykeys = [], myvalues = [];
+        for(var entry of fd.entries()) {
+            assert_equals(entry.length, 2,
+                          'entries() iterator should yield key/value pairs');
+            mykeys.push(entry[0]);
+            myvalues.push(entry[1]);
+        }
+        assert_array_equals(mykeys, expected_keys,
+                            'entries() iterator should see duplicate keys');
+        assert_array_equals(myvalues, expected_values,
+                            'entries() iterator should see non-deleted values');
+    }, 'Entries iterator should return duplicate keys and non-deleted values');
+    test(function() {
+        var mykeys = [];
+        for(var entry of fd.keys())
+            mykeys.push(entry);
+        assert_array_equals(mykeys, expected_keys,
+                            'keys() iterator should see duplicate keys');
+    }, 'Keys iterator should return duplicates');
+    test(function() {
+        var myvalues = [];
+        for(var entry of fd.values())
+            myvalues.push(entry);
+        assert_array_equals(myvalues, expected_values,
+                            'values() iterator should see non-deleted values');
+    }, 'Values iterator should return non-deleted values');
+</script>