diff -r 000000000000 -r 6474c204b198 browser/devtools/styleinspector/test/browser_ruleview_add-property-cancel_02.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/devtools/styleinspector/test/browser_ruleview_add-property-cancel_02.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,84 @@
+/* vim: set ft=javascript ts=2 et sw=2 tw=80: */
+/* Any copyright is dedicated to the Public Domain.
+ http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// Testing various inplace-editor behaviors in the rule-view
+// FIXME: To be split in several test files, and some of the inplace-editor
+// focus/blur/commit/revert stuff should be factored out in head.js
+
+let TEST_URL = 'url("' + TEST_URL_ROOT + 'doc_test_image.png")';
+let PAGE_CONTENT = [
+  '<style type="text/css">',
+  '  #testid {',
+  '    background-color: blue;',
+  '  }',
+  '  .testclass {',
+  '    background-color: green;',
+  '  }',
+  '</style>',
+  '<div id="testid" class="testclass" style="background-color:red;">Styled Node</div>'
+].join("\n");
+
+let test = asyncTest(function*() {
+  yield addTab("data:text/html,test rule view user changes");
+
+  info("Creating the test document");
+  content.document.body.innerHTML = PAGE_CONTENT;
+
+  info("Opening the rule-view");
+  let {toolbox, inspector, view} = yield openRuleView();
+
+  info("Selecting the test element");
+  yield selectNode("#testid", inspector);
+
+  yield testCreateNewEscape(view);
+});
+
+function* testCreateNewEscape(view) {
+  info("Test creating a new property and escaping");
+
+  let elementRuleEditor = view.element.children[0]._ruleEditor;
+
+  info("Focusing a new property name in the rule-view");
+  let editor = yield focusEditableField(elementRuleEditor.closeBrace);
+
+  is(inplaceEditor(elementRuleEditor.newPropSpan), editor, "The new property editor got focused.");
+  let input = editor.input;
+
+  info("Entering a value in the property name editor");
+  input.value = "color";
+
+  info("Pressing return to commit and focus the new value field");
+  let onValueFocus = once(elementRuleEditor.element, "focus", true);
+  let onModifications = elementRuleEditor.rule._applyingModifications;
+  EventUtils.synthesizeKey("VK_RETURN", {}, view.doc.defaultView);
+  yield onValueFocus;
+  yield onModifications;
+
+  // Getting the new value editor after focus
+  editor = inplaceEditor(view.doc.activeElement);
+  let textProp = elementRuleEditor.rule.textProps[1];
+
+  is(elementRuleEditor.rule.textProps.length,  2, "Created a new text property.");
+  is(elementRuleEditor.propertyList.children.length, 2, "Created a property editor.");
+  is(editor, inplaceEditor(textProp.editor.valueSpan), "Editing the value span now.");
+
+  info("Entering a property value");
+  editor.input.value = "red";
+
+  info("Escaping out of the field");
+  EventUtils.synthesizeKey("VK_ESCAPE", {}, view.doc.defaultView);
+
+  info("Checking that the previous field is focused");
+  let focusedElement = inplaceEditor(elementRuleEditor.rule.textProps[0].editor.valueSpan).input;
+  is(focusedElement, focusedElement.ownerDocument.activeElement, "Correct element has focus");
+
+  let onModifications = elementRuleEditor.rule._applyingModifications;
+  EventUtils.synthesizeKey("VK_ESCAPE", {}, view.doc.defaultView);
+  yield onModifications;
+
+  is(elementRuleEditor.rule.textProps.length,  1, "Removed the new text property.");
+  is(elementRuleEditor.propertyList.children.length, 1, "Removed the property editor.");
+}