1 files changed, 51 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/editing/dnd/file/004.html b/testing/web-platform/tests/html/editing/dnd/file/004.html
new file mode 100644
index 0000000000..ee0d63455f
--- /dev/null
+++ b/testing/web-platform/tests/html/editing/dnd/file/004.html
@@ -0,0 +1,51 @@
+<!DOCTYPE html>
+<title>drag &amp; drop - cancelling the dropped file upload</title>
+<style>
+  body > div {
+    height: 200px;
+    width: 200px;
+    background-color: orange;
+  }
+</style>
+
+<script>
+var fails = [];
+window.onload = function() {
+  var orange = document.getElementsByTagName('div')[0];
+  orange.ondragover = orange.ondragenter = function(e) {
+    e.preventDefault();
+    e.dataTransfer.dropEffect = 'copy';
+  };
+  orange.ondrop = function(e) {
+    //if the browser simulates a drop, it must do so with an empty FileList
+    e.preventDefault();
+    if( !e.dataTransfer.files ) {
+      fails[fails.length] = 'No dataTransfer.files for '+e.type;
+    }
+    if( !window.FileList ) {
+      fails[fails.length] = 'No FileList interface object';
+      finish();
+      return;
+    }
+    if( !( e.dataTransfer.files instanceof FileList ) ) {
+      fails[fails.length] = 'dataTransfer.files is not a FileList';
+    }
+    if( e.dataTransfer.files.length ) {
+      fails[fails.length] = 'dataTransfer.files.length is '+e.dataTransfer.files.length+' instead of 0 for '+e.type;
+    }
+    if( e.dataTransfer.files[0] ) {
+      fails[fails.length] = 'dataTransfer.files[0] exists for drop';
+      finish();
+    }
+  };
+
+};
+function finish() {
+  document.getElementsByTagName('p')[0].innerHTML = fails.length ? ( 'FAIL: ' + fails.join('<br>') ) : 'PASS';
+}
+</script>
+
+<div></div>
+
+<p>Save <a href="../resources/pass.png">this image</a> to your desktop. Use your pointing device to drag the saved file from your desktop onto the orange box, and release it. <strong>A confirmation dialog must appear, allowing you to choose to cancel the upload</strong>. Refuse it. Pass if nothing happens, or if the browser simply displays the image.</p>
+<noscript><p>Enable JavaScript and reload</p></noscript>