Show a friendly error when using TestUtils.Simulate with shallow rend…

…ering
facebook · Nov 2, 2015 · 661c046 · 661c046
1 parent 88bae3f
commit 661c046
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/src/test/ReactTestUtils.js b/src/test/ReactTestUtils.js
@@ -470,6 +470,11 @@ ReactShallowRenderer.prototype._render = function(element, transaction, context)
 function makeSimulator(eventType) {
   return function(domComponentOrNode, eventData) {
     var node;
+    invariant(
+      !React.isValidElement(domComponentOrNode),
+      'TestUtils.Simulate expects a component instance and not a React Element.' +
+      'TestUtils.Simulate will not work if you are utilizing shallowRender.'
+    );
     if (ReactTestUtils.isDOMComponent(domComponentOrNode)) {
       node = findDOMNode(domComponentOrNode);
     } else if (domComponentOrNode.tagName) {